Welcome to Heavy Equipment Forums casey! :drinkup
mm30srI have the same machine with the same problem. I am pulling my hair out overthis thing. Have you tried the flow sensors on the valve bank? That is my next approach. Any info is needed.Dan.
Are they pilot operated hyraulic systems?
ben46a said:Are they pilot operated hyraulic systems?Click to expand...The controls are electronic controls with no small fluid lines involved. The tracks and blade are direct mechanical linkage to the valve body and are functioning. It has a two piece boom which when used brings the crowd closer to the cab. So an "interferance prevention system" is used to protect the operator from the bucket impacting the cab.Dan.
MitsyI'm unsure if this will help....try RHINE Equip Co in Tecoma.They are Mits agents,& appear to be helpful with the Mitsy dozers.They might have seen this problem before,just ask them.Jim
CaseyDid you ever solve the problem with your machine. Dan
casey said:can anyone help me with my mitsubishi mm30sr ???the joy sticks wont work or the spin pedal but the blade and tracks do,i have exhausted my efforts on what i can do. im new to this machine and would like to make it work so i can use it for my yard.any help would be greatly appreciated.thanks caseyClick to expand...You should have a lever on the left tower that you lower to engage the joysticks to function. Inside that tower should be a switch with a little roller ball on it. That switch is probably bad. It definitely sounds like an electrical problem. If you do not have that switch, which you may not because the MM and MX series Mitsubishi's are gray market machines and don't have the same safety features as US market machines, then it's probably in the controller. The controller will be either in the right tower or under the seat (I'd have to look at the book)Hopefully this helps. Check it out and reply, I'll grab my book on Monday and check back to see if you had success.
I have had the same problem. Have either of you fixed your problem yet? I have a copy of the Diagnostic Manual for the Electronic system for Mitsubishi MM30SR , MM40SR , MM55SR , MM55SR-2 These were translated from the original Japanese. Also have parts manual for MM30SR. Does anyone know how I could reach these guys? Thanks td6man
If you are inquiring about contacting Rhine, they can't help with the excavators.They are parts distributors for the dozer, grades and wheel loaders.These mini-Mitsubishi's have no parts or service support in the USA.When you sit down do you have to lower the towers on each side where the joysticks are located?Some of them swivel as one and utilize cables to accomplish this. The safety switch on that set up is behind the seat in the housing for the swivel (tilt) mechanism.Some of these machines had cabs, others had a canopy.I would need more information in order to help you.
Mm30srNo, I was offering to send info from my manuals. I also have a MM30SR and the electronics and parts manuals. They have been translated into English. May also have a line on parts. Thanks, TD6man
Hi td6manI never figured out the problem on the mm30sr. I ended up going manual linkage for the joysticks. Would you sell copies of the manuals?Hope to hear from you.
MM30SR FixI could make some copies of the manuals. They were pretty expensive and I would not mind sharing the cost. How would I reach you? Was it hard to convert to manual linkage and joysticks? I'd like to see pics of that fix. Most of the time the problem is just oxidized connections. In my case it was just the secondary ground connection going to the brain. You need to check the fuses and clean them, bat connections and all grounds for corrosion. It only takes a little rust, oxidation, corrosion to stop controls from working. The plugs (male and female) on the brain need to be carefully cleaned and tightened. Also the control switch under the seat sometimes gets oxidized or goes bad. How can I reach you? Thanks, TD6man (Dennis)
check the switch that changes the ISO to SAE controls if it is equipped , some times it gets stuck in the middle and nothing works .Hope this helps
td6man said:I have had the same problem. Have either of you fixed your problem yet? I have a copy of the Diagnostic Manual for the Electronic system for Mitsubishi MM30SR , MM40SR , MM55SR , MM55SR-2 These were translated from the original Japanese. Also have parts manual for MM30SR. Does anyone know how I could reach these guys? Thanks td6manClick to expand...I have a mm40 sr and would be very gratefull to get hold of manuals 4 it & a lead on spare parts. Mine has a computer with an lcd display on the right hand side. it is hooked up to sensers on the boom and has half a dozen buttons on it written in japanese. i have had huge troubles with the little computer with the lcd display, it showing up error codes and buzzing, each time it happens it locks down all controls except tracks & blade. I have had dry solder joints in the computer, poor connections, and sensor trouble. Does anyone know how to bypass this bloomin computer or tell me what it is for.
The microswitch on the left side armrest could be the culprit. It's screwed up a few times on my MM35B.For you guys looking for parts and manuals, the best thing you can do is get the cat parts manual for the year machine you have. For instance my MM35B is a cat 303.5, they were built on the same assy. line in Japan, the MM40 is a cat 304 and so on.I have purchased more than a few parts from Cat for my machine.Dave
What error codes Wayneo?What error codes are you getting when it locks up? Try cleaning the extra small ground wire coming off the brain ( computer) where it grounds on the frame. That has given me a problem in the past. If that does not work clean all the small pins and sockets on the plugs going to the computer. They will build up oxidation over time. Also the control switch under the seat SAE--ISO will corrode. And of course the switch on left arm rest. Good Luck if you post error codes I look them up when I get time.
I got some parts for my MM40SR through H&R Construction Parts, Edmonton AB, Canada, or the US branch in Buffalo NY (800-333-0650) about a year ago. They ordered them through Rhine Equipment Company. I dealt with Scott at 877-543-0094 (email was[email protected]), he was very helpful. You should be able to get manuals from them, but they are in Japanese.Mike
Hi TD6man,Are you still open to make copies of the MM30sr manual. If so, what's the best way to contact you?
hello can you tell me where to get english manuals for the electronics on my MM55SR-2 ? I'm having similar problems thank you
need manualstd6man said:I have had the same problem. Have either of you fixed your problem yet? I have a copy of the Diagnostic Manual for the Electronic system for Mitsubishi MM30SR , MM40SR , MM55SR , MM55SR-2 These were translated from the original Japanese. Also have parts manual for MM30SR. Does anyone know how I could reach these guys? Thanks td6manClick to expand...hey, can i get a copy of those manuals for the MM30sr? how much would it cost me? i need a computer box.
I have a mm30sr-3 Mitsubishi gray market excavator. it will not drive and the hydraulic does't work. I pulled the pump from engine and checked the coupler, inspected the pump, changed the oil and filter. Cleaned all grounds and checked safety switch. Does anyone have information and specs for this vehicle.
mm55sr micro repairthe display in front of the stick is not important its the micro under the seat were all the trouble starts. When you turn on the key the cpu light infront of the key should flash on and off a few times while beeping,if this does not happen or if it does not go out one or more of the power wires to the micro under the seat is not making contact, this stops the sticks from working. Pull the seat pull the micro carefully and check the red wires grouped together, you will probbly see discoloration on the pins and at the base of the pin slight platic melting. You can get new pins with a short piece of wire attached replace them and your good to go. Mine has benn working perfectly for a long time after the replacement, the controls work so smooth it would be a shame to put in manual sticks. If you have any trouble finding the pins {providing they are burnt} email me[email protected]
Hello everybody,I have the MM55sr and need some help with manuals td6man. Please contact me here or reply to email I have sent you. Thanks from the farmerboy
Contact with H&R Constr. PartsContacted H&R in Buffalo. No Scott there. They referred me to Rhine Equip. They feel Rhine only gets engine parts for Mitsu excavators. Left message at Rhine. I will report.In meantime, anyone having luck getting manuals in Japanese? I can get an exchange student locally to translate very reasonably.
Manualreefermike was nice enough to send me a Japanese manual for my MM55. I have it as a PDF file and can attach it as an email. Just passing on the favor reefermike was kind enough to do for me....thanks Mike. I tried to use the parts #'s to order parts but was told there is no correlation with Cat #'s.All the best from the farmerboy
ManualFarmer:Can you email me a copy at[email protected]?'preciate it.
Cat manualHi Belchos,In the spirit that passed it on to me, hats off to reefermike for his generosity.All the best from the farmerboy. Find an email with four PDF attachments.
Hi, Farmer,I have not received an email. ?[email protected]is correct address.By the way, I am probably one of the few Californians who has driven the Sunshine Coast. Beautiful!
Hats off to reefermikeHi Belchos,Have your confirmation you received the manual in PDF format. You may wish to tip your hat to the generosity of reefermike for his time and effort to scan the manual and forward it as a PDF.All the best from the farmerboy
X2! Hoping to return the favors some day.
casey said:can anyone help me with my mitsubishi mm30sr ???the joy sticks wont work or the spin pedal but the blade and tracks do,i have exhausted my efforts on what i can do. im new to this machine and would like to make it work so i can use it for my yard.any help would be greatly appreciated.thanks caseyClick to expand...hello i have 96 mm40 have four years for lifting logs digging around my yard itwas going great ever yet me down to the other day i started her up the cpu light flashing and she not work the boom .the bade works and tracks i tried all fuses and wires .some timeswhen she cold starts up she will work every thing as soon as i go not of shed she will stop again can any one keep mt friend said might be the brain.casey how did you get on regards
hello i have mm40 sr the cpu light flashing will not digg can any one help me regards ed
Countryboy said:Welcome to Heavy Equipment Forums casey! :drinkupClick to expand...this mm40 doing my head in i was telling evey one how good she was doing how this can anyone help me
i desperately need error codes for mm30 sr. can someone mail it to me at[email protected]. it would be very kind.
Manuals may helpReturning a kindness that was sent to me by another forum member. Here are the manuals for MM55 which may be of some use. Earlier in the thread is a discussion on error codes. All the best from Phill the "farmerboy" Sent to your email mafujo
mm 30Thanks a lot for your efforts farmerboy, but unfortunately i did not get an email from you...
I am a newby to this forum but have been watching for a while. I have a grey market (ex Japan) Mitsubishi MX45 but have no manuals or technical details and am seeking same. Does this model match any of the other model detail available in this thread??? I have a green flashing light above the hour meter which comes on every now and again but does not seem to interfere with the machine functions. Does anyone know anything about this type of flashing LED???Hydraulic fluid holding tank seems to get very hot - cant hold my hand on it - is this normal???Thanks for any help that can be offered,MX45 - Australia.
farmerboy said:Returning a kindness that was sent to me by another forum member. Here are the manuals for MM55 which may be of some use. Earlier in the thread is a discussion on error codes. All the best from Phill the "farmerboy" Sent to your email mafujoClick to expand...Farmerboy. I would really appreciate a copy of the MM55 manuals you have. I recently purchased one with some issues and those manuals might save me.thanks Waker65[email protected]
Passed manuals to you as emailHello Robert,I sent the manuals to you as email attachments. You should get 4 PDF files. Thanks to reefermike who was kind to send them to me.All the best from the farmerboy
Thanks to both you farmerboy and Reefer mike. Hopefully I can help u guys someday.
Fellas, do you know if the MM55 is like the MX45 - if so can you offer me the manuals you have??? I am not allowed to add the same photo that is under MX45 in another thread - you can see my machine there - thanks for any help in advance -Regards, MX45
MX45 I looked at a pic of a 45 and it looks different than the 55 to me. If you want the parts manual for the 55 your welcome to a copy.Waker65
G'day Waker65,Thanks for the offer and YES I will take up that offer of the manuals. My email is[email protected]. I have looked at photos of the MM55 and seen an MM45 and the set up physically seems similar enough and something is far better than nothing. Both machines are Mitsubishis and from the same era in the nineties so hoping there is enough similarity for the manuals to give me guidance - the computer codes seemed similar to what I see on mine so here is hoping. Thanks to the original supplier of the manuals and to everyone who has contributed to this thread in advance,Regards, MX45
manuals pleaseFarmboy, could you please send me a copy of the mm55 manuals, thanks in advance[email protected]
I would love to buy m55sr-2 manuals from youtd6man said:I have had the same problem. Have either of you fixed your problem yet? I have a copy of the Diagnostic Manual for the Electronic system for Mitsubishi MM30SR , MM40SR , MM55SR , MM55SR-2 These were translated from the original Japanese. Also have parts manual for MM30SR. Does anyone know how I could reach these guys? Thanks td6manClick to expand...I would love to buy mm55sr-2 manuals from you td6mann. Please email me at[email protected]or call me at 907 209 9902.Thanks!
hi, i also have the same problem with a mm 55 sr, the cpu shows code 32 and 53can anyone help me please.[email protected]thanks
codesAll i can do to help is give you code #53 - 0053 – right to left on left hand joystick below 2.3 volts. Try cleaning all your contacts, CPU contacts, and all fuses. Make sure all grounds are tight and that the battery is FULLY CHARGED, and that the battery connections are secure.
thanksthanks for the info.i'll check it out.
mm30sri have a mm30sr with code s.c.e on dash read out what does that mean? thanks john
MM 30 SR manuals anyone?Evening all, I've just been asked by a friend to assist getting his MM30SR working again after some of the levers stopped working! I have seen several people trying to get manuals for this model. Has anyone been successful at all? I have seen that "farnerboy" and "td6man" have been active along these lines and I hope they will be able to help me if I contact them directly.But if anyone has a copy of any manuals for this model please let me know as I know I'll need all the help I can get. :BangheadI'm in the UK.Cheers allHoraceM
Farmerboy - if you have the time please also forward to me the MM55 manual - I have the same excavator and the same problem everyone is talking about - Thanks in advance![email protected]
Hi Scot, no joy so far from farmerboy, let me know if he surfaces, I need his help too!H.
DEAR,td6man,I have a mm30sr and i see you have a Diagnostic Manual would you be willing to sell me a copy of your's i bought one and the plugs are all messed up on it, I would be greatful if you could help me out on this matter.
yes i would like a copy to i will pay for it i really need these i can be contacted by email[email protected]re: manual mmsr30thanks any one can help me please
FarmerboyCan you email me a copy of the manual for the Mitsubishi MM55 excavator to[email protected]Thank you
HI all i have a mm55-SR with the typical cpu flashing no controls working .. Ihave read most info on connection oxidisation etcI have cleaned myriads of connections none of which appeared to cause my problem... The cpu flashes 08 if anyone can give me the code on this or e-mail a fault code chart it will stop me going bonkers..I have had this machine for some time and it has been really good till now....Any help with manuals etc will be greatly appreciated My email[email protected]Thanks to all ..Ireally am desperate to get this machine going again Loftyofaust
MM40SR Manuals needed ...I see that you may have manuals for the Mitsubishi series excavators. Would you be able to provide a parts and repair manual for the Mitsubishi MM40SR?Thanks,[email protected]
can aksobe or who has them please put diagnostic fault charts up for down load or give us a email address so we can contactyou these charts would be of so much benefit to all subscribers to this forum who have flashing cpu problems..Hoping for some answers loftofaust email[email protected]
MM40 SR Computer Lockup ...edmm40sr said:hello i have 96 mm40 have four years for lifting logs digging around my yard itwas going great ever yet me down to the other day i started her up the cpu light flashing and she not work the boom .the bade works and tracks i tried all fuses and wires .some timeswhen she cold starts up she will work every thing as soon as i go not of shed she will stop again can any one keep mt friend said might be the brain.casey how did you get on regardsClick to expand...Regarding the electrical lockup of the swing and digging controls: I have found that by pressing the reset button while the machine is running will erase the error code and present instead all flashing eights on the readout. Once you see the all flashing eights then the machine will operate yet without the aid of the rotate, elevation and boom angle readouts. The reset button is located next to the ISO/ANSI switch and fuse panel under the operator seat.
Do you have a hard copy or PDF files of the Diagnostic Manual for the Electronic System? Please send if you have PDF. Thank You so[email protected]
Ed,Please see my post at the end of this thread.[email protected]
4x6HeavyMetal said:Regarding the electrical lockup of the swing and digging controls: I have found that by pressing the reset button while the machine is running will erase the error code and present instead all flashing eights on the readout. Once you see the all flashing eights then the machine will operate yet without the aid of the rotate, elevation and boom angle readouts. The reset button is located next to the ISO/ANSI switch and fuse panel under the operator seat.Click to expand...Thanks edmm40sr For your reply unfortuneatly this process did nothing towards fixing my problem...This machine begins flashing as soon as it is turned on ...I have cleaned and tightened all connections to the brain...The brain reads a steady 08 with the left console isolating switch engaged ..There are no lights at all on the depth boom angle read out ..The only connections i havent completely examined areon the hydraulic bank..I was hoping that a forum member wold be able to give me adefinition of the 08 reading so having a better idea as to where the fault is ..I have also tried to get cat 305sr which is a badged 55sr machine ..without much successThanks for your suggestion But i appear to have a more complex fault..Lofty ..E-mail[email protected]
Hi td6 man I am desperate for a copy of the diagnostic manual for the mm55sr-2 ..My cpu has a steady reading of 08 with the left console engaged .. I cant get any help or support in australia.. I have had a couple of issues in the past with connections but ihave had no luck fixing this one...Any assistance will be greatly appreciated email[email protected]Thankyou Loftyofaust
HiWhat a great place to get info from and to hear that your not alone with the problems we have with our excavators. My experience may help someone. I have a mm30cr also, about a 1998 model, when I bought the machine the controls didn't work and the CPU light was flashing. I pulled the controls apart and cleaned them (they are Kawasaki controls) I found a problem with them. As the controls wear and get slopy the micro switchers need to be adjusted when the controls are at their resting position. You need to make sure that the micro switchers are in the off position, you can hear them click on and off.Making sure that the micro switchers are adjusted correctly the CPU light stopped flashing and the machine started working which was great until a couple of months later the machine has stopped again with some other problem. Once again the CPU light is flashing with codes coming up on the computer '' AO - 53 -66 " I see on the forum that manuals for this machine are about, please if you have the pdf manuals I would really appreciate it if you could e-mail me a copy.[email protected]Hope to hear from someone soon, Cheers
mm40srHi all,I am new to this forum, yet I am having similar problems with my machine. error code of P32 and controls locked out, unless I push red reset button under seat. controls will work in reset mode, but lcd flashes 8888 and annoying beeping persists. I desparately need some info on how to diagnose and fix my problem. Also, even when operating correctly, could never figure out how to change control function. Right now even pushing red reset button, it has reconfigured my controls to an unfamiliar setting that is almost impossible for me to operate. would also love to pay someone for a copy of operators or diagnostic manual. PLEASE HELP!! thanks.
Forgot, if anyone has manuals that they would be so kind as to sharemy email is[email protected]. thanks much
reefermike was nice enough to send me the manual in PDF from. It is in Japanese and is useful mainly for the exploded diagrams. Part numbers do not work through to anything I can figure out yet. I will pass on but they contain no electrical or diagnostic. I had a problem with the machine not answering the controls and only able to operate blade up/down and tracks power. It all came back to normal when I moved the valve in the boom from thumb control to sideswing and back to thumb with a twrench. Beeping on computer stopped and all is well. Have to adjust it back and forth on occasion as boom becomes sloppy and is half in sideswing. All the best from farmerboy.
farmerboyIf you email me that manual for any Mitsubshi excavator that you have . Would be great a big help .Email me at[email protected].thanksED
please share with Mitshubishi MM50SR manual by[email protected]i need it !
I'd love any Mitsubishi manuals as well. I have an MM35B having issues starting, almost like the hydraulics are locked or ? Please send any manuals to[email protected]. Thanks.
td6man said:I could make some copies of the manuals. They were pretty expensive and I would not mind sharing the cost. How would I reach you? Was it hard to convert to manual linkage and joysticks? I'd like to see pics of that fix. Most of the time the problem is just oxidized connections. In my case it was just the secondary ground connection going to the brain. You need to check the fuses and clean them, bat connections and all grounds for corrosion. It only takes a little rust, oxidation, corrosion to stop controls from working. The plugs (male and female) on the brain need to be carefully cleaned and tightened. Also the control switch under the seat sometimes gets oxidized or goes bad. How can I reach you? Thanks, TD6man (Dennis)Click to expand...Hi -- Are you still able to make copies of the Mitsubishi Manuals. I would be happy to pay you for your trouble (and some additional to help with your original costs) - If you are able to help, please send me the details at[email protected]. Many Thanks Doug
Hi FarmerboyI know that this is an old thread but if you still have access to that Mistsubishi MM manual I would be grateful for a copy and willing to pay any costs - If still available please email to[email protected]ThanksDougfarmerboy said:reefermike was nice enough to send me the manual in PDF from. It is in Japanese and is useful mainly for the exploded diagrams. Part numbers do not work through to anything I can figure out yet. I will pass on but they contain no electrical or diagnostic. I had a problem with the machine not answering the controls and only able to operate blade up/down and tracks power. It all came back to normal when I moved the valve in the boom from thumb control to sideswing and back to thumb with a twrench. Beeping on computer stopped and all is well. Have to adjust it back and forth on occasion as boom becomes sloppy and is half in sideswing. All the best from farmerboy.Click to expand...
Hi GuysI have the manual in my other laptop on the Mitsubishi mm30sr that reefermike and farmerboy posted.I will try to upload it tonight when I get home for all of you .I will post the link here.
Tool King - You are an Officer, a Gentleman and a Scholar. Let me know if I owe you anything.Many ThanksDoug
dml7953Don't worry about it .
MM40SR ManualHi, one and all. I've just found this forum & have similar problems to others with the Mitsubishi excavator. I have an electronics friend helping me with the problem. We are desperate for a manual in relation to the electronics of the MM40SR or similar. If anyone can help it would be much appreciated. We are happy to pay for costs incurred.
Mitsubishi manualsHi guys here are the links for a Mitsubishi MM50sr .These are the parts manual.I thought I had the service manuals for the mm30sr and mm5sr but no luck right now .Hopefully these will help.http://www.4shared.com/office/UUxx0FGT/mm55sr11.htmlhttp://www.4shared.com/office/_CODBdsN/mm55sr21.htmlhttp://www.4shared.com/office/oPAwfhWH/mm55sr31.htmlhttp://www.4shared.com/office/akRh0zSn/mm55sr41.html
Thanks tool king. Looks like I've got to brush up on my Japanese. From a quick look it doesn't have much in relation to electronics?? Maybe I need to source info on the joystick and computer board manufacturers ??
Thanks Ed (Tool King) and Farmerboy for ManualHey Guys thanks very much for this download. It is not the MM30, and it is in Japanese and not the Service manual or the diagnostic codes, but it is WAY MORE THAN I HAD YESTERDAY !!!So a Very BIG thank YouNow if we could just hear from TD6Man (Who has all of those translated into English !!!!!) We would be off to the races.TD6MAN ..if you are still out there send me an email, and I will be HAPPY to help pay for those manuals (and you would make about another 20 people happy on this thread.[email protected]Many Thanks to all for your help, every drop helps fill the reservoir.
TD6ManCan you email me the Mitsubishi manual also .Please email at[email protected]THANKSED
I also have a mitsubishi mm30sr . Joysticks are electic operated they do not work . Tracks and blade works . The controler on the right side got water inside . Can it be bypassed or where can I buy one. Someone said they changed them to operate mechanicaly. What can I do?
I joined this forum search for the answer/s to this problem which the small mitsubishi excavators seem to have problems with. If those who have hadthese problems resolved please provide the solutions to the problems. Many here have received the manuals, did they help solvethe problem? I have an mx45 and a mx55 bothgrey market one has lost its joystick controls. I have gone through every connection that has already been listed and cannot get the problem resolved. I am begining to think the computer maybe bad.
I don't know if people are still looking but I have a service manual that has been translated and a parts manual that has been partially translated for the MM55SR. Email me at[email protected]
I cannot post attachments; if I email section VI and VII to someone could they post them for me?
Thanks for your work fish_guy10. If you email me at[email protected]with attachments I will forward to all who you direct me to or anyone who mails me. All the best from farmerboy.
Replacing Crimp ConnectorsHas anyone replaced the female crimp sockets that connect to the pins on the brain CPU on a 55SR If you have any knowledge of part numbers suppliers etc ...Will you please contact me by email at[email protected]Thanks Loft
Will be indebted to you Farmerboy for any literature that you can forward to me at[email protected]Keep up the good work ,,Any one who has one of these excavators needs all the help that they can get..I have a connection problem The front console does not have power to it..The brain reads 08 ..Cant find a diagnosis of what it means or where the fault lies..Thanks Mate
Hi Reefermike Did you replace any of the female crimp cockets connecting the wires to the pins...If you have any info on part numbers suppliers etc ..Please email me at[email protected]Thanks Mate
Just wanting to let people know about the success I have had in getting my Mitsubishi mm30cr excavator going. I had the same problem as most that the controls had locked out the dipper, boom, bucket and slew, but the tracks and front blade still operated. The problem was the controls, they consist of 4 micro switches and 4 potentiometers.The problem on my machine was that one of the potentiometers failed which inturn locked out the controls. I finished up replacing 3 of the potentiometers, adjusted the slop in the controls and then adjusted the micro switches and potentiometers. The machine works perfectly now, I suggest you get a forklift mechanic with an expertise in electronics to look at your machine. It would seem the forklift mechanics have a lot more to do with electronic controls. You can do it yourself once you know how to adjust the micro switch and potentiometers to their neutral position. Hope this is some help or it gives you a direction to start looking at your problems.Regards treviftn
Just wanting to let people know about the success I have had in getting my Mitsubishi mm30cr excavator going. I had the same problem as most that the controls had locked out the dipper, boom, bucket and slew, but the tracks and front blade still operated. The problem was the controls, they consist of 4 micro switches and 4 potentiometers.The problem on my machine was that one of the potentiometers failed which inturn locked out the controls. I finished up replacing 3 of the potentiometers, adjusted the slop in the controls and then adjusted the micro switches and potentiometers. The machine works perfectly now, I suggest you get a forklift mechanic with an expertise in electronics to look at your machine. It would seem that forklift mechanics have a lot more to do with electronic controls. You can do it yourself once you know how to adjust the micro switch and potentiometers to their neutral position. Hope this is some help or it gives you a direction to start looking at your problems.Regards treviftn
Here is what I have and my gratitude to reffermike who passed on the material to me. treviftn looks like he's on to some good stuff with the controls. I had a similar problem but adjust it by resetting my side swing boom/thumb control by switching the flow from one to the other and then all is well. All the best to you loftyofaust. from the farmerboy ........ sent attachments by email
Mm30srGOOD DAY ! AFTER READING YOUR MESSAGES , I STILL BOUGHT A MM30SR THAT THE STICKS DO NOT WORK. SO YOURS WOULD LIKE TO SELL ANY COPYS OF THE ELECTIC, PARTS,SERVICE MANUALS. IT WOULD GREATLY APPRICIATE THANKS YOU CAN EMAIL ME @[email protected]
I now have all of the wiring diagrams and diagnostic sheets from the mm55SR service manual scanned and available. However, because of the demand for these pages I would like to only send them to one person who can then post them for everyone to download. I would do it myself but I am unable to save attachments to my messages on this site. The images are not great even though I scanned them at 600 dpi and much of the text is unreadable. I'm certain that the "originals" that I have are reduced copies of other printed pages and we likely cannot improve on them much.
Thanks for your efforts here fish_guy10. I have received all your wiring diagrams and diagnostics. Mine is running fine but these are like gold when the day comes. I love the forum and appreciate the good advice I get there. All the best from farmerboyPhill Murray 604 886 2151
Hi Phil Thanks for all the info you and the fish guy Shaun have given the readers of this forum ..I have a collection of documents that may help those having trouble with mm55sr i can be contacted by E-mail at[email protected]I live at Buderim on the Sunshine Coast in Queensland Australia My name is Alan Maudsley
That's the spirit I love to see here loftyofaust. I got my first info from reefermike here and he was very generous when I needed help so I pass it on. I would love to get more info and will contact you by email. I notice you live on the Sunshine Coast in Australia. I live on the Sunshine Coast in BC on the west coast of Canada. It was once known as the Raincoast as we live in the rainforest. Realtors who wanted to sell property here nudged the name change. All the best from farmerboy.
helptd6man said:I have had the same problem. Have either of you fixed your problem yet? I have a copy of the Diagnostic Manual for the Electronic system for Mitsubishi MM30SR , MM40SR , MM55SR , MM55SR-2 These were translated from the original Japanese. Also have parts manual for MM30SR. Does anyone know how I could reach these guys? Thanks td6manClick to expand...please help i am searc hing for a service manual, electrics manual in english, also parts manual, can you help, will purchase.many thanks dean
Hey chippie9863,touch up here at my email and I will forward manuals I have at no charge. Freely given to me so pass it on. All the best from farmerboy[email protected]
Hi Phil Still helping the people with these cantankerous little Beasts I see.Hope you had a mild winter we had plenty of rain in our summer. Phil i have the Electrics Section 2 V1 and VII Diagnosis ( Very helpful) also the CPU fault codes (Pure gold when you own one of these..If i can be of help Email me[email protected]Great weather here on the Sunny Coast in Qld Regards Alan (Lofty)
I like to pass it on loftyofaust. Can you send me the Electrics section and the CPU codes and I will add it to the material I freely pass on. My machine MM55sr now is losing power and stalling. I have biocide in my fuel, have changed all fuel filters and now cleaned and changed hydraulic filters. Works fine for a while (< 2 hours) and then starts to lose rev's and shudder when I ask it to work. Noticed this especially with two simultaneous operations, i.e., lifting a log with bucket and thumb while trying to swing turret. Also track power when in mud. I put new idlers in recently and that improved travel but that was a year before this "shuddering". Your thoughts would be appreciated brothers. All the best from farmerboy.
Where do you get parts for mm55sr ? I live in North Idaho. 50 miles south of Creston BC...
Casey,Check the seat safety lever switch. Move the arm down and the controls are enabled, move the arm up and the controls are disabled except for the blade and tracks.Jeff
Treviftn,Did you replace potentiometers with OEM or aftermarket. Where did you buy them?Jeff
Hi Phill,Could you send those diagrams my way? Sure would appreciate.Thanks,Jeff
TD6MAN,Will you send me a copy of the diagnostic manual for the electronic system for the MM series machines?Thank You very much,Jeff
hi there i am also struggling with controls on a mm55sr. can anyone help with a fault code 62
4x6HeavyMetal said:TD6MAN,Will you send me a copy of the diagnostic manual for the electronic system for the MM series machines?Thank You very much,JeffClick to expand...Hello all,I am new here and also have a mm30sr which I have been working on for a while now.If anyone can send me any and all diagnostics or manuals for this rig I would very much appreciate it!! My email is[email protected]. Or my forum name has another email if that one doesnt work.I finally can operate most things although the display is flashing pe2 until i hold sown the reset button, then it flashes 8888.Thanks for reading and for being so generous with the help! Is there a paypal donation account set up? I would gladly donate!
Apologies my email is[email protected]! !
Hello All,My name is Anna & I'm also looking for a service manual for Mitsubishi MM55SR. I need the electrodiagram/schematic. I've called everywhere & nobody is able to help.If you have any information I would love your assistancePlease help.
Anna, what is your email? I have a partial electronics manual that helped me with my pe3 code.
[email protected]Thank you so much!!
SuzukiDan7 said:Anna, what is your email? I have a partial electronics manual that helped me with my pe3 code.Click to expand...My email is[email protected]If ANYONE has any sort of electro diagrams I'm willing to purchase."The hydrolics are working, motor is working, we are able to drive it fine....but the arm doesnt work. The joystick doesnt make the arm move or anything. Specifically the left joystick doesn't wire energy through it, yet when energy is taken straight from the battery, they are able to make it work" The computer doesnt work either.States my uncle who is the owner & is located in Russia. There wasn't a single person out there able to help him, so I hope someone here can. Seems like ya'll know the most!
mm55sr manualtd6man said:I have had the same problem. Have either of you fixed your problem yet? I have a copy of the Diagnostic Manual for the Electronic system for Mitsubishi MM30SR , MM40SR , MM55SR , MM55SR-2 These were translated from the original Japanese. Also have parts manual for MM30SR. Does anyone know how I could reach these guys? Thanks td6manClick to expand...Hi td6man I am in need of mm55sr manuals of any kind. Am happy to pay. Please contact me at[email protected]. Thanks matt
Hello everyone, I am in need of a service manual and electrical diagrams for a Mitsubishi MM30SR. I am having the same problem as most here, cpu light continues to flash and beep and nothing works. I had read that some had error codes on their machines, I don't see anything that would display a code on this machine.Can anyone help with manuals for this machine? I am willing to buy them.Thanks
I have MM55SR schematics but too large to post here
I have had a Pe2 error and solved it by turning the sensor at the knuckle boom area to a different position and cleaning plugsSuzukiDan7 said:Hello all,I am new here and also have a mm30sr which I have been working on for a while now.If anyone can send me any and all diagnostics or manuals for this rig I would very much appreciate it!! My email is[email protected]. Or my forum name has another email if that one doesnt work.I finally can operate most things although the display is flashing pe2 until i hold sown the reset button, then it flashes 8888.Thanks for reading and for being so generous with the help! Is there a paypal donation account set up? I would gladly donate!Click to expand...
I have a MM40sr that is unusable it is displaying SCE error and buzzing. apparantly it is a comunication area between the panel with the display and the control module box. checked wiring. but no problem found there. when the cover is removed from the brain and you can see the circuit board and all its components there is there is a display at the top left hand side that doesnt light up at all and the leds in a row on the right hand side also do nothing. I fear the control unit is cooked and i cannot find anyony that can source parts for this model. I have had pe2 errors and trouble with the earth contacts before but this seems more serious. We rely on this machine and i really need some help please. any ideas or assistance would be greatly apreciated.
Hi rangerjohn28 I to have an error code S.C.E. were you able to solve the problem? Could really use some advise with this fault. Wayne
Hi rangerjohn28 I to have an error code S.C.E. were you able to solve the problem? Could really use some advise with this fault. Waynerangerjohn28 said:i have a mm30sr with code s.c.e on dash read out what does that mean? thanks johnClick to expand...
I had a guy who was good with circuit boards take a look at the one here. He found that the board was not grounded. He soldered a new ground onto the board and all has been well here.
I have a schematic set if anyone is interested. Had one acting up here and the computer board was not grounded properly, had an electronics guy solder a new ground on board.
I need too service manual mm55sr. Someone help?[email protected]
Hi, I have a JCB 8025 similar problem.No joystick functions. Can any help?
Hi, I have a MM40sr which I intend on keeping for ever. I currently have no problems but it's getting old now and they will inevitably happen. Does anyone have any information, ie repair manuals or similar for this machine. If so could you please forward them to me at[email protected]. Also does anyone know where the best place to source parts for thin in the UK is??????Thanx Richie.....
Hi everyone, i have a mm30sr. im having problems with moving the arms forward and back. i keep getting error 66 on the CPU when i move the arms forward and when i move the arms backward, it moves so slow. Anyone experienced the same issue? May you please email me at[email protected]. Thank you..
follow up on my post above.. im actually getting 2 kinds of CPU errors when i move the arms of mm30sr forward. its error 66 and error 81.. Please help thanks
I have a MM40SR and was going well until someone stole the brain. Where can I get this part and how much would it cost? Alternatively could I bypass the unit or make a replacement?Help pleaseGerry
Manuals for Mitsubishi mm30srtd6man said:I have had the same problem. Have either of you fixed your problem yet? I have a copy of the Diagnostic Manual for the Electronic system for Mitsubishi MM30SR , MM40SR , MM55SR , MM55SR-2 These were translated from the original Japanese. Also have parts manual for MM30SR. Does anyone know how I could reach these guys? Thanks td6manClick to expand...I understand that you have copies of manuals I need to repair the electronic problems that stop the boom to move upward. (error code E22) Let me know if you can send them in pdf thrue internet or by any other means. I would appreciate to know the price you want for those dcuments. Thank you in advance for helping me as I have bought this machine to lighten my retirement days and now I am stocked with a machine that I can't use. Mitsu
I found a solution to my problem of a missing processor. A company in Australia - IMDynamics, make an alternative analogue control box which replaces the computer in these machines. I had to send my joysticks to them first (a long way from Ireland) for them to match the control. I had to do a bit of installation of rewiring which was fairly straightforward and I'm very happy with the outcome. You need to ascertain the model of your joysticks to see if they work with 12 volts.Mine were Kawasaki ERU2-1.
Thank you GerryGerryR said:I found a solution to my problem of a missing processor. A company in Australia - IMDynamics, make an alternative analogue control box which replaces the computer in these machines. I had to send my joysticks to them first (a long way from Ireland) for them to match the control. I had to do a bit of installation of rewiring which was fairly straightforward and I'm very happy with the outcome. You need to ascertain the model of your joysticks to see if they work with 12 volts.Mine were Kawasaki ERU2-1.Click to expand...Thank you for this useful information. If I can't fix the problem by cleaning all the cnnections and grounds it might be the solution I choose. Mitsu
loftyofaust said:Hi Phil Thanks for all the info you and the fish guy Shaun have given the readers of this forum ..I have a collection of documents that may help those having trouble with mm55sr i can be contacted by E-mail at[email protected]I live at Buderim on the Sunshine Coast in Queensland Australia My name is Alan MaudsleyClick to expand...please note change of email address to[email protected]
treviftn said:Just wanting to let people know about the success I have had in getting my Mitsubishi mm30cr excavator going. I had the same problem as most that the controls had locked out the dipper, boom, bucket and slew, but the tracks and front blade still operated. The problem was the controls, they consist of 4 micro switches and 4 potentiometers.The problem on my machine was that one of the potentiometers failed which inturn locked out the controls. I finished up replacing 3 of the potentiometers, adjusted the slop in the controls and then adjusted the micro switches and potentiometers. The machine works perfectly now, I suggest you get a forklift mechanic with an expertise in electronics to look at your machine. It would seem the forklift mechanics have a lot more to do with electronic controls. You can do it yourself once you know how to adjust the micro switch and potentiometers to their neutral position. Hope this is some help or it gives you a direction to start looking at your problems.Regards treviftnClick to expand...Say treviftn, I am having a similar problem. How did you determine that it was the potentiometers/microswitches? was there a code that indicated as such? If not, do you know at what voltage range the potentiometers/microswitches should read at?Thanks for any help you can give me!
loftyofaust said:please note change of email address to[email protected]Click to expand...?Hey Lofty, it says that your email address is invalid. would you mind shooting me over any of the documents you have related to the mm55sr? slick519(at)gmail,com
My mm55sr-2 wouldnt even turn over, and it turned out to be the microswitch under the left arm rest that indicates the arm-rests up or down position.Folks having issues with the micro switch under the arm-- try switching the wires from COM/NC to COM NO (abbr. for common, normally closed, normally open). This was an easy way to check that the switch was stuck in the wrong position. to free the switch, there are two little pins that punch out (fairly) easily. pop the case off, and check for corrosion on the little copper plate, and then remove the rubber nipple with the copper stud in it, and remove the small plastic bumper that directly hits the connection in the switch. the rubber nipple outside the housing and plastic bumper inside the housing should be free floating, and not stuck together.Anybody have knowledge of what other problems this faulty microswitch causes?
hi farmer boy any chance you could email the manuals to[email protected]. thanks
Any chance you could send me that manual. i have a japanese friend that may be able to translate the error codes so i can then post them.Thanks
This may be of help to someonehttp://www.justanswer.com/uploads/Boxerman1969/2009-08-05_044424_mini_scehm.pdf
I also need a manual for a MM40SR, same problem like above and I don´t understand how to use the "computer/display" for the digging deph.Can someone send a mail with the pdf it will be great./Niklas
Can you email me a copy of the manual for the Mitsubishi MM55 excavator to[email protected]Thank you
I need too service manual mm40sr or mm55sr . Someone help?[email protected]
Mitsubishi mm30cr-2My new friends. Here is a link to CFTERPILLAR 305 . I'm looking for the user manual and service manual for MITSUBISHI MM30CR-2. At whom is , share with me.
lexx2810 said:My new friends. Here is a link to CFTERPILLAR 305 . I'm looking for the user manual and service manual for MITSUBISHI MM30CR-2. At whom is , share with me.Click to expand...https://yadi.sk/i/93ao_udag9NT9
Farmerboy or somebody alseCan you email me a copy of the manual and coded error for the Mitsubishi MM55 excavator to[email protected]Thank you
sorry is[email protected]thank you
Dear Graham,I'm located in Québec and i have some troubles with electric connections in my mm55sr.Can you contact me to see if we are able to find a way to discuss about that ?I'll be very nice.Awaiting your reply.Best regards.Steve.
mm55srI have an mm55sr and the dash indicates PE2 could you help me by emailing the schematic or error codesi have tried to find the manual but i can't. i have invested a fortune in this machine and i can not use it.I'm desperate.Thanks in advance!
Hello! Anyone is can send me this manual,or any electric schematic for mm30 or mm55sr .I can pay for it or give you help with other machines! My email :[email protected]Waiting for your answer.Best regards.Pavel.
I'm also in the market for manuals for my MM55SR-2 as well as a source for parts if anyone cane be of assistance I would appreciate itThanks in advanceSequester
Hi TD6MAN, Could you send me a copy of the Diagnostic Manual for the Electronic system for Mitsubishi MM30SR. I happy to pay for[email protected]I would be very gratefull to get hold of manuals, Thanks
td6man said:I have had the same problem. Have either of you fixed your problem yet? I have a copy of the Diagnostic Manual for the Electronic system for Mitsubishi MM30SR , MM40SR , MM55SR , MM55SR-2 These were translated from the original Japanese. Also have parts manual for MM30SR. Does anyone know how I could reach these guys? Thanks td6manClick to expand...Hi TD6MAN, Could you send me a copy of the Diagnostic Manual for the Electronic system for Mitsubishi MM30SR. I happy to pay for[email protected]I would be very gratefull to get hold of manuals, Thanks
My MM30SR flashes E-21 on the screen. I have to push the red circuit reset button by the fuses to make the boom work. Does any one have any ideas of the problem as I have no manuel.
E-21 Codepaul dacy said:My MM30SR flashes E-21 on the screen. I have to push the red circuit reset button by the fuses to make the boom work. Does any one have any ideas of the problem as I have no manuel.Click to expand...Don't know on the MM30SR but on the MM55SR-2, E-21 is a cut/short wire on the boom potentiometer, which sounds like where your problem is originating given your "fix".
Short ?fish_guy10 said:Don't know on the MM30SR but on the MM55SR-2, E-21 is a cut/short wire on the boom potentiometer, which sounds like where your problem is originating given your "fix".Click to expand...The Entire system is hydro. not electronic controls. any other ideas?
paul dacy said:The Entire system is hydro. not electronic controls. any other ideas?Click to expand...On the mm55 the red button next to the fuses is the Anti-Interference Cancellation Switch. Do you have limiters on the boom?
Mm30scrfish_guy10 said:On the mm55 the red button next to the fuses is the Anti-Interference Cancellation Switch. Do you have limiters on the boom?Click to expand...No I don,t believe so.
hI ALL iam having problems with a joystick it is a bit worn in the plastic bits that open the switches also the switches need replacing any one know where i could get replacements ..Have got a collection of electrical info fault codes front computer settings etcIf you want this info email me Lofty
I FINALLY (after about 5 years) have a ENGLISH service MANUAL and parts book. I also had a Japanese friend translate some of the marking on the machine (control buttons on the LCD AND the fuse panel). This includes a FULL TRANSLATED LIST OF TROUBLE CODES. I've shared these with users via email and phone to help them get their machine running before, but now I am going to include them with this package.If anyone is interested in purchasing (I spent countless hours and lots of money having this translated) you can email[email protected]. Email me for a phone number as well if you like and we can chat. I would also be willing to trade for some other mm55sr knowledge OR some other help with it, or parts. I also have to cover the cost of having the parts manual scanned, it is a few hundred pages long, and I only have a physical book (had to go to Japan to find it!). Like I said, for a price I will take it to the copy shop and have them copy it.Thanks!
hiHave a Mitsubishi MM40SR with error code SCE01 and continuous beeping. Pushed reset button to get flashing eights. Control did not work and got long beeps.Cleaned contacts. The code now shows SCE31 with continuous beeping. Any pointers to a solution will be appreciated.Thank you
hiDisconnected and sprayed contacts again. Got controls working but not usual operation.Left swing makes "right" swing instead.Any information to "reset" or set configuration is appreciated.Thank you
Hi Treedoctor,PE1, PE2, and PE3 refer to an open circuit between one of the three potentiometers and the computer. My experience has been that wires belonging to the PE2 potentiometer on the stick have been struck by tree limbs, then broken. Check the wires for continuity. Once the open wire is repaired then you will not have to use the red "Front End Collision Cancellation" switch. ...Cheers
HI All, I am really hoping some can help does anyone have error code list for mm55s and even possible a wiring diagram. Ours has been intermittent for ages stabbing at the red reset button under the seat behind your feed used to fix it but now it will not reset at all, the ecu/brain is flashing various error codes. we are trying to tidy up ahead of our wedding end of next month and we now have stranded digger. any help would be greatly appreciated.
bensttech said:HI All, I am really hoping some can help does anyone have error code list for mm55s and even possible a wiring diagram. Ours has been intermittent for ages stabbing at the red reset button under the seat behind your feed used to fix it but now it will not reset at all, the ecu/brain is flashing various error codes. we are trying to tidy up ahead of our wedding end of next month and we now have stranded digger. any help would be greatly appreciated.Click to expand...Hi Bensttech,I have a some info showing some codes and wiring diagram that was shared with me by another member years ago, I'm more than happy to send it through to you if you post an email address. Cheers
Can I please get some wiring schematics & code information, thanks[email protected]
Can I please get some wiring schematics & code information, thanks[email protected]
MX45 Boom Controls Stopped WorkingWe have an early model Mitsubishi MX45. The boom controls stopped working but tracks work great. The error code on my board reads 5P or SP. The CPU light flashes and we've checked wire connections and capacitors. Everything is old but looks clean. Any help you can send would be great, please email[email protected]. Thank you in advance.
Possible short to due with pattern selection switch
mm40srHello! I have Mitsubishi MM40SR. Can you send any manual and service information (mm30 mm40) to email[email protected]? Thanks!
Hi from Raasay off NW Scotland, after spending much time reading this and trying everything suggested I finally admitted defeat and converted an MM30SR to cable controls. It was actually pretty straight forward. I got two cable joystickshttp://www.hycon.co.uk/Products/1086/156/3344.htmlfromhttp://www.hycon.co.uk/along with 5 x 1m long cables and a control leverhttp://www.hycon.co.uk/Products/1241/156/3047-SINGLE-CABLE-LEVER.htmlfor the boom offset. They didn't have any adapters for the Nachi spool valves so I used 5 of thesehttp://www.hycon.co.uk/Products/1088/156/20-KIT.htmlI had to modify them quite a bit, changed the pin from 7mm to 6mm to fit the Nachi valves and and elongated the holes for attaching the adapters to the valves with a chainsaw file. The Allen screws that come with the adapters are M5 so no use for the M4 Nachi's but I used M4 threaded rod and nylocs to sort that. Two of the spool valves worked the wrong way around but there was enough slack in the pipes to swap them over. Of course there are now no safety features or interlocks but I've been working the machine hard for a few days now and it works a treatCheers, Paul
TassieMM55sr said:Hi Bensttech,I have a some info showing some codes and wiring diagram that was shared with me by another member years ago, I'm more than happy to send it through to you if you post an email address. CheersClick to expand...Is your offer still good to share this information? Appreciate any help.
I have a MM30SR that i am about to sell Parts off of..http://www.ebay.com/itm/302397731544?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
If you need parts just tell me what you need and i will take it off take pictures discuss a price with you and put it on ebay
Helllo,I know this is an old thread, but I also have a Mitsubishi MM40SR, and recently started getting the error code E-22. Does anyone know what that means? The only way I am able to make the boom/bucket work is to press the red button under the seat once where it seems to disable the limiter. I would like to just disable the limiter completely if possible as I have never used it for anything. Does anyone know if I can just disconnect it? Or the sensors? Any help would be greatly appreciated.
I also have the manuals that Farmboy was sharing with everyone. Feel free to download here:https://www.dropbox.com/sh/mzkhy958xi4isje/AAD-Zia6ZoL4VXffkdPXCeyXa?dl=0Only a small portion have been translated, so if someone has a more complete version please share!
If you are wanting to bypass your Monitor Controller, have a look here where I posted a step by step:https://www.heavyequipmentforums.com/threads/mitsubishi-mm40sr.68292/
the swich probably broken. just fix it or change a new one .I usually buy some parts from this sitehttps://www.sunoreparts.com/, made in China.
Can anyone help me with error codes for Valve Controller for Mitsubishi MM30SR or MM55SR ?On the websitehttps://www.dropbox.com/sh/mzkhy958xi4isje/AAD-Zia6ZoL4VXffkdPXCeyXa?dl=0error codes only for Monitor Controller.Email:[email protected]
Sorry, I wish I could. Check those manuals that I posted. What code are you getting?
Dear Fordzilla, You posted error codes only for the Monitor controller. Monitor controller detects unusual condition of Front Control System and shows an error code on the display.I need error codes meaning for the Valve controller (error codes of electric-hydraulic control system).In normal mode they are not displayed. To display them you need to press 3 buttons on the monitor.
Sorry, I don't know where you would find them. Wish I could be more help.
td6man said:Mm30srNo, I was offering to send info from my manuals. I also have a MM30SR and the electronics and parts manuals. They have been translated into English. May also have a line on parts. Thanks, TD6manClick to expand...
Is it possible to get Electronic copy of the manua?If so can you pl kindly mail to[email protected]Thank you
I have Mitsubishi MM 30B excavator and its running hour is not working. Do you have any Idea why it is not working and how to pen up right side control box open?
td6man said:I have had the same problem. Have either of you fixed your problem yet? I have a copy of the Diagnostic Manual for the Electronic system for Mitsubishi MM30SR , MM40SR , MM55SR , MM55SR-2 These were translated from the original Japanese. Also have parts manual for MM30SR. Does anyone know how I could reach these guys? Thanks td6manClick to expand...td6man, I am looking for manuals for my mm55sr. Any help? thanks, Randy
farmerboy said:Manualreefermike was nice enough to send me a Japanese manual for my MM55. I have it as a PDF file and can attach it as an email. Just passing on the favor reefermike was kind enough to do for me....thanks Mike. I tried to use the parts #'s to order parts but was told there is no correlation with Cat #'s.All the best from the farmerboyClick to expand...farmerboy, Any chance you could email me the manuals?[email protected]Thanks, Randy
waker65 said:MX45 I looked at a pic of a 45 and it looks different than the 55 to me. If you want the parts manual for the 55 your welcome to a copy.Waker65Click to expand...waker65, any chance you can send me a copy of any manuals avail? I'm in need and really appreciate your help.[email protected]Thanks...Randy
tool_king said:Mitsubishi manualsHi guys here are the links for a Mitsubishi MM50sr .These are the parts manual.I thought I had the service manuals for the mm30sr and mm5sr but no luck right now .Hopefully these will help.http://www.4shared.com/office/UUxx0FGT/mm55sr11.htmlhttp://www.4shared.com/office/_CODBdsN/mm55sr21.htmlhttp://www.4shared.com/office/oPAwfhWH/mm55sr31.htmlhttp://www.4shared.com/office/akRh0zSn/mm55sr41.htmlClick to expand...Hi Toolking, Tried the links, with no success. Do you have any avail links or can you email me them to[email protected]Thanks...Randy
I too am on the search for a repair manual. I recently bought an MM30SR with non-working joysticks. I was able to bring it back from the dead by cleaning up the oxidization on the computer ground and putting a new battery in but a manual would really help me as ultimately I would like to repair all the sensor controls and bring it back to it's former glory. If anyone has a manual for the 30 let me know - willing to reimburse or barter or whatever works.Email is :[email protected]Thanks
I'm receiving an error code on a Mitsubishi mm55 excavator that is saying check for cut wire or short out of "differential transformer" Does anyone know what a differential transformer is and where's located. I do have some translated manuals and error code sheets I can share if anyone needs them. My direct email is[email protected]
David- A diff.trans. is a sensor in a valve that provides spool position to the brain (controller). There is one on each of the electronically operated valves. The wire is usually located near the back bottom of the valve. If the brain is easily accessible, the easiest way to check these is on TP5-8 inside the brain.
Good morning everyone. I have been following this discussion for a while now. As well as searching all over the net. I have the same problem with my MM30SR. Electronic lockout. And the red button doesn’t work anymore. I am content with disabling the safety monitoring system if I had some guidance or a manual or any literature. I’m at the point where I can afford to repair the machine as well as have the time to do so. As the weather warms up next month. I will be tearing into it. But would like to be better prepared. Any information will greatly help. As I purchased the machine this way and it has been a problem ever since. My email address is[email protected]Thank you everyone
Hi bigray_83, I too have a MM30SR but not sure what kind of lockout you have. If you find that the joysticks don't work but the blade and tracks do, then have a good look at the safety lever next to the heater. It activates a switch underneath and might not be working. Bad contact on the wiring was the cause of my problems. If it's a lockout caused by the safety console on the RHS then have a look at the posting by Fordzilla back in 2017, this might be an answerGraham
hi i am looking for the service manual for mm55sr-2 i do not care if it is in Japanese i just need electric diagrams.i have been looking all over the place i would appreciate any help thnak you in advance.
Hi Elie,If you are still looking for a service manual for the MM50SR just let me know your email address and I can send you service and parts manuals (in Japanese I'm afraid).Cheers
Hey folks, just a quick question, do any of you have a 2 speed travel control on your machine? I have an MM40SR and have found a new final drive to replace mine, however the manufacturer is telling me that based on the hoses on my motor, mine is a 2 speed drive. I have never found a button anywhere on my machine that could make it travel faster or slower...
Hi Fordzilla,My MM30SR has 2 speed tacking, its a button on the floor just by your foot. The label says , Kawasaki ERU, Electronic control unit, model ERUP1-10-001, Mfg No. 1698.Hope this helps.GrahamPS. You don't happen to have a service manual or parts manual for you machine? I've got stuff for MM50 from the Forum but it would be nice to have MM30 manuals.
Graham Hamilton said:Hi Fordzilla,My MM30SR has 2 speed tacking, its a button on the floor just by your foot. The label says , Kawasaki ERU, Electronic control unit, model ERUP1-10-001, Mfg No. 1698.Hope this helps.GrahamPS. You don't happen to have a service manual or parts manual for you machine? I've got stuff for MM50 from the Forum but it would be nice to have MM30 manuals.Click to expand...Hi,What does it look like exactly? I see nothing on my floor except a big "Button" (That isn't a button), that looks like the old High Beam switch on the floor of old cars (But bigger). It doesn't seem to do anything. My drive motors are 4 hose, which according to a Chinese dealer of drives is absolutely the 2 speed drive motor. I have had the machine for about 7 years and never found anything that changes the speed of travel...As for manuals, no I suspect you have the same ones I do for the 50. Mostly in original Japanese...
Fordzilla said:Hi,What does it look like exactly? I see nothing on my floor except a big "Button" (That isn't a button), that looks like the old High Beam switch on the floor of old cars (But bigger). It doesn't seem to do anything. My drive motors are 4 hose, which according to a Chinese dealer of drives is absolutely the 2 speed drive motor. I have had the machine for about 7 years and never found anything that changes the speed of travel...As for manuals, no I suspect you have the same ones I do for the 50. Mostly in original Japanese...Click to expand...Hi, Its the big button on the floor which you press down on with you the heel of you left foot. It's non-latching so you have keep pressure on it.I've uploaded a couple of photos
Graham Hamilton said:Hi, Its the big button on the floor which you press down on with you the heel of you left foot. It's non-latching so you have keep pressure on it.I've uploaded a couple of photosClick to expand...LOL thats hilarious! I have that button (its the one I described as high beam button in an old car) and could NEVER figure out what it did... NEVER. Once I get this thing back in action I'll have to try it! LOL Wow!! Thank you!!
hey guys i have a 90s mm30 , most cat 302.5 fit my machine, there is a place in north las Vegas NCW TRACTOR PARTS that can get lots of mitsubishi parts the guy there knows everything about these engines,
Stan R said:hey guys i have a 90s mm30 , most cat 302.5 fit my machine, there is a place in north las Vegas NCW TRACTOR PARTS that can get lots of mitsubishi parts the guy there knows everything about these engines,Click to expand...Yeh, the Mitsubishi S3L and S4L engines used in the MM30SR and MM40SR are in quite a lot of other makes of excavators and forklifts etc which were imported into Europe and I think the USA, so manuals and spares are readily available for the engines. I've had a new starter motor, alternator, fan belt etc which are easy to find.However its all the other stuff that is hard to find and as far as I know the excavator manuals were only produced in Japanese.
my mm30 has the k series engines ,used in a lot of tractors,marine ect ect,my k3g needed a complete rebuild,they got me parts from the crank up,is hard to find info on there machine.
Hello. I want to help a friend with a mitsubishi mm 30sr excavator. Problem - can't use the boom. Any wiring diagrams will be grateful. If anyone can send -[email protected]. Thanks! Sorry for google translation.)
I wonder if there is a chronic problem with this machine? I was thinking of buying too.However, few people said he had the same problem. This made me wonder ...
I have an MM55SR2 that had boom operating problems. Suspect the system is the same or similar on all the MM series machines. I have a manual translated from Japanese with troubleshooting procedures and wiring diagram. When anything in the boom operating system malfunctions, the whole system shuts down. The system can be reset by pushing the red reset button under the seat.First thing to check is the wires connecting the boom potentiometers (one at each joint) to the computer box under the seat. If any of these have weak signals (short, frayed wire, corrosion) the system shuts down. Another problem I have read about is a weak ground on the computer box. The box is under the seat. Some guys have soldered a ground strip from the box to a known good ground or the battery neg post. Though I have never heard of it happening, a proper safety signal to the computer might cause a problem. When the safety arm is up, the machine can be started but the boom-computer will not operate. When the arm is down, computer receives a “safe” signal and boom operates. This is controlled by a switch at the base of the arm sending a signal to three relays located behind the fuse panel. I really do not understand how this all works or how to check it, but suspect that if this circuit were to fail, the computer would think the arm is not in the safe position, and would not work.My primary problem was a blown potentiometer in one joystick. The manual helped identify this as the problem. Tried getting it fixed here in USA to no avail. Used ones are scarce as hen’s teeth. I sent mine to Tony at IMDynamics in Australia. The voltage of these operating systems possibly varies from one model to the next, because the first time he “fixed it”, he assumed it was a 12 volt system. It wouldn’t work. After taking several voltage readings from the computer and referencing the manual, I determined it to be 5 volt based. Sent it back along with output specifications from the manual and he did a proper repair. When I hooked the repaired joystick up to the system, it still would not work until a reset was done via red button under the seat. It works perfectly now. IMDynamic also builds an analog operating system that will replace the existing computer/digital system.I hope these thoughts give you some ideas as to where to start your assessment. Knowing any sequence of failed functions that occurred prior to complete shutdown might indicate where your problem lies. For instance my bucket curl function (left to right movement of right joystick) became erratic just before the whole system shut down. The potentiometer controlling that function was the one that failed.
Actually the first thing to check is under the seat. There should be a RED button there. Push it to reset your computer. That fails, try holding it down and moving your sticks. IF your sticks work with button down, either continue to chase Potentiometers as T-in-T states above. Or you can redneck it like I did (Posted a step by step on this forum). Cut the wires off the back of the button, and twist them together for good. But then your computer beeps so you might want to take it apart and remove the speaker.
I have MM40SR, and had to order a new drive motor for it. It apparently is a 2 speed machine, so I looked under the seat at the foot pedal. Has wires not connected to anything, anyone know which solenoid I need to connect it to to get the dual speed?
Thanks for the help. All potentiometers are broken on this excavator. Dummy plugs are installed in their place. The malfunction is wandering. Maybe a day to work, then 2 days does not work. Many electricians have tried to solve this problem. But the result is always negative. I examined the excavator today. The CPU lamp is flashing. When you press the red button, the screen lights up 8.8.8., But does not respond to joysticks. But as soon as the CPU stops flashing, the excavator starts working. I removed the connectors from the control unit - 2 contacts in one connector are burnt (black wires in the bundle). This leads me to believe that the problem is a poor ground connection. Also, traces of repair are visible on the control unit board. I took the board home, wash off the car sealant from it and see what was repaired on it.
I had the problem of intermittent operation in the past. Boom would not work until I shook the machine vigorously by engaging the tracks forward-reverse-forward-reverse-etc. This was most prevalent after a rain or heavy dew. What was happening was poor signal strength from the boom potentiometer wires. After repairing all the connections in the boom wires (soldering, insulating, etc) it worked good. Also the connections into the control box have been an issue. Sometimes the boom would operate erratically or not at all. I could reach behind the seat and jiggle the controller plugs and solve the problem. Finally used electrical contact cleaner and a brass brush to clean each contact thoroughly and made sure the plugs were seated securely. Problem solved. Since your machine operates occasionally, a bad controller or joystick is not likely the problem. Indicates a bad electrical contact somewhere is interfering with the controller. Also, when the monitoring is flashing are there any readable letters or numbers like PE3 OR PCE4 or SCE and is the buzzer sounding too or is it silent?
Also---This machine records errors in the monitor. If yousimultaneouslypush the red button under the seat, the button left of the numbers on the monitor and the top button of the three vertically stacked buttons on the right edge of the monitor , the LED should display "S-E 4" or "S-E 5". Then press + or - to get S-E5 showing. Then press the middle button of the three stacked buttons and error codes should start flashing up one every two seconds. Record these and post on the forum and I'll look them up in the manual for you. Maybe this will help.
I’ll only get to the excavator tomorrow. I'm sure the problem lies somewhere in poor contact. It remains to find where. ) If someone has an electrical diagram, please see where the 2 black wires are laid in connector 101 of the control unit.When the ignition is turned on, the inscription S.L.E appears. What does it mean?
Cannot find a SLE error. Maybe you have a bad LED on monitor and it should be SCE. SCE is code for communication error between connector 39 at monitor and connector 101 at controller. The manual is somewhat confusing. It shows a diagram that wire 11 of connector 39 leads to wire 7 of connector 101 and that wire 12 of connector 39 leads to wire 8 of connector 101. This is followed by a diagram that says " Check item-- Conn. 39-3 leads to 101-7? and 39-4 leads to 101-8?" If no = harness failure - rework or replace. If yes = controller failure - replace controller." Wires are numbered left to right as viewed from the wire entry end of the plug. The wiring diagram shows wires 39-3 and 39-4 going to the boom potentiometers and 39-11 and 39-12 going to plug 101 at controller. If wires 101-7 or 101-8 are the ones that are burned, they are probably malfunctioning.
T-in-T, thanks for the help. You are right, the monitor is not fully functional. I'll check the harness. Could an SCE error be causing the boom to malfunction?
Hello. Today I dealt with the excavator. I cleaned the contacts on the control unit - the SCE error is now not displayed. But the CPU lamp still blinks. I have read the errors. "S-E 5" - 52.53.54.66. "S-E 4" - 52.53.54. If anyone has a wiring diagram and error codes, a divider please. I will deal with the problem quickly, the excavator will work, a friend will dig the foundation for me and I will start building a garage.)))
Glad to hear your communication problem is fixed. But the error codes indicate a bigger problem--JOYSTICKS!. Codes 52,53,54 indicate the voltage output of the joystickswhen centeredis not within specifications, 52 is for front-back function of left hand stick is below 2.3 volts, 53 is for left-right function of left stick is below 2.3 volts, and 54 is for front-back function of right stick is below 2.3 volts. Diagnosis guide says "If one of any channel is out of center, all channels stop. Wait until joystick comes back to center. Operable only if all channels are set in center." When my left-right function of right stick went out, error codes for both sticks were present- so the issue is identifying which component of which stick is actually malfunctioning. Code 66 is for microswitch of front-back left stick. Diagnosis guide says "If microswitch is on more than 1 second with joystick centered, troubled channel stops. If microswitch is OFF with joystick is ON, troubled channel stops." With errors 52-54 you should be getting a blinking monitor and buzzer; with error 66 you should be getting a constant ON monitor and buzzer. I'll now try to lead you through testing for errors 52-54. Remove seat so you can access the controller while connected. Remove controller cover and look for test points labeled TPG=ground, TP1-TP4= joystick outputs. You will also find TP5-TP8-- those are for the Differential transformers on the valve bank- not relevant yet. TP1 measures output of front-back function of right stick; TP2 for Left-right of right stick; TP3 for front-back of left stick; and TP4 left-right of left stick. With the switch on and the safety lever locked, measure the out puts of each test point. With sticks centered each TP should measure 2.35-2.65 volts. TP1 should measure 0.35-0.65 volts with right stick full front and 4.35-4.65 at full rear. TP2 should measure 0.35-0.65 volts with right stick full left and 4.35-4.65 at full right. TP3 should measure 0.35-0.65 volts with right stick full rear and 4.35-4.65 at full front. TP4 should measure 0.35-0.65 volts with right stick full right and 4.35-4.65 at full left. If measurements happen to be within range, but for reverse positions of stick, it is because the translator of my manual got stick positions wrong, not a bad component. While you are inside the controller, see if the connection leads of plug 182 are numbered. If they are, continuity between leads 8 and 10 test for the left stick front-back microswitch error 66. Centered = no contact; front or back= contact. If not labeled, pull 182 off and facing contact point end with lock mechanism up, lead 8 will be fourth contact from right of bottom row of contacts and contact 10 should be third point from right on top row.
Thanks. I found parts of the repair manual and error codes on the internet yesterday. I am currently translating it into Russian. That's what I don't understand. Do the joysticks return to neutral by themselves? My excavator has a very large play in the joysticks.
Today I will translate the repair manual. Tomorrow I will go to repair the excavator again. I will check the TP1-TP4 control points. What is the working principle of joysticks? Are there potentiometers inside?
To diagnose correctly, I need to understand how joysticks work. There are microswitches and potentiometers inside the joysticks, right? When I move the joystick forward, a microswitch is triggered, which informs the control unit about this, right? After that, the potentiometers come into operation, according to the voltage drop on which the control unit understands how hard the lever is pressed, right?
Right. When the joystick is not being deflected by operator, it should return to a fairly stable center position. I cannot remember exactly, but seem to recall that springs or other mechanical devise inside the joystick return it to neutral. When moved from neutral a microswitch activates and then potentiometers send varying voltage signals to controller based on joysticks' degree of deflection. I am not versed in electronics and do not understand much about how these components operate. But whoever repairs the components needs to know that it is a5 volt system.
Excellent. Almost the entire puzzle is assembled in my head.))) Now I understand how everything works. Tomorrow I'll disassemble the joysticks and see what's inside.
The joysticks on this excavator are very loose. They cannot return to neutral.
Check your voltage readings at the test points TP1-4 first! I did not when my machine broke. Spent a lot of useless energy and time trying to test sticks unhooked from the system. Useless to do so. Checking the TP outputs will save a lot of headaches.
Of course, I'll start by checking the voltage at the test points.
Hello. Yesterday I measured the voltages at TP1-TP4. They were all out of order. Adjusted potentiometers - joystick errors disappeared, boom and bucket started working. Now the mechanics of the joysticks need to be repaired, since due to the strong backlash of the joysticks, they cannot be in the center position. Thanks to everyone who helped with advice in this repair! Without this forum, I would have had a hard time with this excavator.
T-in-T said:Glad to hear your communication problem is fixed. But the error codes indicate a bigger problem--JOYSTICKS!. Codes 52,53,54 indicate the voltage output of the joystickswhen centeredis not within specifications, 52 is for front-back function of left hand stick is below 2.3 volts, 53 is for left-right function of left stick is below 2.3 volts, and 54 is for front-back function of right stick is below 2.3 volts. Diagnosis guide says "If one of any channel is out of center, all channels stop. Wait until joystick comes back to center. Operable only if all channels are set in center." When my left-right function of right stick went out, error codes for both sticks were present- so the issue is identifying which component of which stick is actually malfunctioning. Code 66 is for microswitch of front-back left stick. Diagnosis guide says "If microswitch is on more than 1 second with joystick centered, troubled channel stops. If microswitch is OFF with joystick is ON, troubled channel stops." With errors 52-54 you should be getting a blinking monitor and buzzer; with error 66 you should be getting a constant ON monitor and buzzer. I'll now try to lead you through testing for errors 52-54. Remove seat so you can access the controller while connected. Remove controller cover and look for test points labeled TPG=ground, TP1-TP4= joystick outputs. You will also find TP5-TP8-- those are for the Differential transformers on the valve bank- not relevant yet. TP1 measures output of front-back function of right stick; TP2 for Left-right of right stick; TP3 for front-back of left stick; and TP4 left-right of left stick. With the switch on and the safety lever locked, measure the out puts of each test point. With sticks centered each TP should measure 2.35-2.65 volts. TP1 should measure 0.35-0.65 volts with right stick full front and 4.35-4.65 at full rear. TP2 should measure 0.35-0.65 volts with right stick full left and 4.35-4.65 at full right. TP3 should measure 0.35-0.65 volts with right stick full rear and 4.35-4.65 at full front. TP4 should measure 0.35-0.65 volts with right stick full right and 4.35-4.65 at full left. If measurements happen to be within range, but for reverse positions of stick, it is because the translator of my manual got stick positions wrong, not a bad component. While you are inside the controller, see if the connection leads of plug 182 are numbered. If they are, continuity between leads 8 and 10 test for the left stick front-back microswitch error 66. Centered = no contact; front or back= contact. If not labeled, pull 182 off and facing contact point end with lock mechanism up, lead 8 will be fourth contact from right of bottom row of contacts and contact 10 should be third point from right on top row.Click to expand...
When I posted this regarding error 66, I stated that to check--If not labeled, pull 182 off and facing contact point end with lock mechanism up, lead 8 will be fourth contact from right of bottom row of contacts and contact 10 should be third point from right on top row.That should have been--If not labeled, pull 182 off and facing contact point end with lock mechanism up, lead 8 will be fourth contact fromleftof bottom row of contacts and contact 10 should be third point fromlefton top row.Sorry about that but wanted to clarify in case someone referenced this in the future.
In my case, code 66 appears due to a backlash in the joystick mechanics. The joystick lever under its own weight deviates from the center position and presses the microswitch.
antinejtrino said:Hello. Yesterday I measured the voltages at TP1-TP4. They were all out of order. Adjusted potentiometers - joystick errors disappeared, boom and bucket started working. Now the mechanics of the joysticks need to be repaired, since due to the strong backlash of the joysticks, they cannot be in the center position. Thanks to everyone who helped with advice in this repair! Without this forum, I would have had a hard time with this excavator.Click to expand...Wow! You might have solved a problem with a lot of these machines. Joysticks are notorious for going bad, new replacements are not available and used ones are very scarce. Adjusting potentiometers might be a repair for a lot of these machines thought to be irreparable. I did not realize they could be adjusted. Could you explain exactly how you managed to do this. What does the potentiometer look like and where is it's adjustment mechanism. Did you use the TP reading while adjusting, ETC.??
Of course I can explain. But not sure if the translation is correct with google.
If you disassemble the joysticks, then under the plastic covers on each of the joysticks there are 2 microswitches and 2 potentiometers. It is easy to distinguish them. Potentiometers have 3 wires. Protentiometers screwed with 2 screws. If the screws are slightly loosened, then the potentiometers can be rotated around their axis. The algorithm is as follows. We unscrew the potentiometer screws, connect the multimeter to the control points Tp1..Tp4, turn on the ignition, look at the multimeter readings. If the readings are not normal, turn the potentiometers in one direction or the other, look at the readings of the multimeter. We get the the values we need.
I will try to photograph everything and make detailed instructions from the photo.
I think the joysticks can be repaired. To do this, you need to select the size of the potentiometers and, using adapters, install them in place of the defective ones. Almost all throttle position sensors provide the values we need.
Even if the potentiometers are incorrectly set, the power of the excavator may be lost. The comrade says that the excavator "couldn't push up" from the ground at idle until I adjusted the potentiometers.
That's it, the excavator is fully restored. Yesterday I already dug out the foundation for the garage.))) Many thanks to everyone who helped me in its repair. Now I know almost everything about this excavator. )))To restore the joysticks to work, they must be completely disassembled, and all dirt from the springs and pins that support the joysticks in a neutral position must be washed off. After that, assemble everything in reverse order and install the joysticks on the excavator. Use the top washer to eliminate play in the joysticks. Then adjust the position of the microswitches so that they respond clearly to the movements of the joystick. The last thing to do is adjust the potentiometers to the neutral position of the joysticks. To do this, unscrew the fastening screws of the potentiometers. Connect a multimeter to the test points Tp1..Tp4. Rotate the potentiometers around their axis left-right. Achieve the desired readings on the multimeter (2.35-2.65 V). Tighten the fixing screws.Unfortunately I can not show the photo. This forum does not support direct download from PC.If anyone has any questions, ask. I will try to answer them.Once again, thank you very much !!!
casey said:can anyone help me with my mitsubishi mm30sr ???the joy sticks wont work or the spin pedal but the blade and tracks do,i have exhausted my efforts on what i can do. im new to this machine and would like to make it work so i can use it for my yard.any help would be greatly appreciated.thanks caseyClick to expand...PLEASE DID YOU GET TO SOLVE THE PROBLEM? MINE IS DOING THE SAME THINGPLEASE YOU CAN EMAIL ME AT[email protected]any chance of a manual mm30sr ?
td6man said:I have had the same problem. Have either of you fixed your problem yet? I have a copy of the Diagnostic Manual for the Electronic system for Mitsubishi MM30SR , MM40SR , MM55SR , MM55SR-2 These were translated from the original Japanese. Also have parts manual for MM30SR. Does anyone know how I could reach these guys? Thanks td6manClick to expand...PLEASE URGENTLY NEED A PDF OF MANUAL FOR MM30 SR
farmerboy said:Passed manuals to you as emailHello Robert,I sent the manuals to you as email attachments. You should get 4 PDF files. Thanks to reefermike who was kind to send them to me.All the best from the farmerboyClick to expand...PLEASE ALL MEMBERS,I NEED MANUAL FOR MITSUBISHI MM30SR AT[email protected]the machine will not moove with the joisticks. tracks and blade work ???h e l p p l e a s e !!!
farmerboy said:reefermike was nice enough to send me the manual in PDF from. It is in Japanese and is useful mainly for the exploded diagrams. Part numbers do not work through to anything I can figure out yet. I will pass on but they contain no electrical or diagnostic. I had a problem with the machine not answering the controls and only able to operate blade up/down and tracks power. It all came back to normal when I moved the valve in the boom from thumb control to sideswing and back to thumb with a twrench. Beeping on computer stopped and all is well. Have to adjust it back and forth on occasion as boom becomes sloppy and is half in sideswing. All the best from farmerboy.Click to expand...please could you send pictures of what you di to get it working again... I have the same problem with mm30 sr
andystruck said:I also have a mitsubishi mm30sr . Joysticks are electic operated they do not work . Tracks and blade works . The controler on the right side got water inside . Can it be bypassed or where can I buy one. Someone said they changed them to operate mechanicaly. What can I do?Click to expand...DIDI YOU FIX YOUR MM30SR... I HAVE THE SAME PROBLEM,,,,PLEASE HELP HELP HELP
GerryR said:I found a solution to my problem of a missing processor. A company in Australia - IMDynamics, make an alternative analogue control box which replaces the computer in these machines. I had to send my joysticks to them first (a long way from Ireland) for them to match the control. I had to do a bit of installation of rewiring which was fairly straightforward and I'm very happy with the outcome. You need to ascertain the model of your joysticks to see if they work with 12 volts.Mine were Kawasaki ERU2-1.Click to expand...HELLO , MY MM30SR HAS NO POWER TO THE JOISTICKS , TRACS AND BLADE MOOVE BUT NOTHING ELSE.... HELP PLEASE... ALSO MANUAL ?
peter squire mm30sr said:HELLO , MY MM30SR HAS NO POWER TO THE JOISTICKS , TRACS AND BLADE MOOVE BUT NOTHING ELSE.... HELP PLEASE... ALSO MANUAL ?Click to expand...Hi Peter,I have some electric diagrams for the MM50SR which I think is very simiar to the MM30SR, if you give me your email I'll forward them. The tracks and blade use mechanical linkages, everything else is electical/electronic. So the place to start is with the safety lever and the start safety relay under the seat, check for earth faults. Mine has had this problem and it was a bad connection, so suggest you pull off the relay connections and clean them.Graham
I have copies of section Vi and Section VII of what I think is the service manual for an MM55SR if anyone is interested. They contain a lot of information about the electrical side of the machine, wiring diagrams, functional descriptions, trouble shooting and fault codes etc.Post your email address and I'll send them through. Cheers
StnkyPete said:I have copies of section Vi and Section VII of what I think is the service manual for an MM55SR if anyone is interested. They contain a lot of information about the electrical side of the machine, wiring diagrams, functional descriptions, trouble shooting and fault codes etc.Post your email address and I'll send them through. CheersClick to expand...Hi I'd be interested in what you have. My emal is[email protected]
Does anyone know the plumbing for the dual speed tracking? I replaced a drive motor and realized that a previous owner must have changed things up a bit. I have the floor button that just has some wires coming out of it, but I don't know where the wires are supposed to go connect to? Thoughts? (Mine is MM40SR)
Fordzilla said:Does anyone know the plumbing for the dual speed tracking? I replaced a drive motor and realized that a previous owner must have changed things up a bit. I have the floor button that just has some wires coming out of it, but I don't know where the wires are supposed to go connect to? Thoughts? (Mine is MM40SR)Click to expand...I had a look at section VI of the MM50SR manual p260. It shows the supply coming from the fuse box (10A fuse) to the 2 speed switch then the 2 speed valve and finally to earth. I think yours will be very similar. I'm not sure where the valve is but my guess is it will be under the floor plate. I'll have a look at my MM30SR when I get a chance. Graham
Does anyone can send me a mm30sr or similar manual please.StnkyPete said:I have copies of section Vi and Section VII of what I think is the service manual for an MM55SR if anyone is interested. They contain a lot of information about the electrical side of the machine, wiring diagrams, functional descriptions, trouble shooting and fault codes etc.Post your email address and I'll send them through. CheersClick to expand...I would be really interested! If you can send me a copie please.[email protected]Thanks a lot
On their way!
Does anyone know where I can buy bottom rollers for mm30sr online? Is there any part number I can look for that will fit ? Thanks
I just did a web search and came up with the link below:https://miniexcavatorcentre.com/sho...-track-rollers/mitsubishi-mm30-bottom-roller/Also Maxis,jp in Japan seem to do them
StnkyPete said:I have copies of section Vi and Section VII of what I think is the service manual for an MM55SR if anyone is interested. They contain a lot of information about the electrical side of the machine, wiring diagrams, functional descriptions, trouble shooting and fault codes etc.Click to expand...please send me a copy of what you have,[email protected]
JDC21 said:please send me a copy of what you have,[email protected]Click to expand...Email sent to you.
Graham Hamilton said:I had a look at section VI of the MM50SR manual p260. It shows the supply coming from the fuse box (10A fuse) to the 2 speed switch then the 2 speed valve and finally to earth. I think yours will be very similar. I'm not sure where the valve is but my guess is it will be under the floor plate. I'll have a look at my MM30SR when I get a chance. GrahamClick to expand...i have an mm40sr and having error code 30, do you know what that refers to
from info for 55sr problem in spool center 30=boom in, 31=arm in, 32=bucket in, 33=swing in,34=boom out, 35=arm out, 36=bucket out, 37=swing outI would think spool on hyd valve not being back in center with no demand or feedback error.best I can do, others may provide better infogood luck
StnkyPete said:I have copies of section Vi and Section VII of what I think is the service manual for an MM55SR if anyone is interested. They contain a lot of information about the electrical side of the machine, wiring diagrams, functional descriptions, trouble shooting and fault codes etc.Post your email address and I'll send them through. CheersClick to expand...I also have a MM55SR that's reading CPU when I try to boom out or in and won't move everything else works.Could you please send me the manual pages are talking about.[email protected]Thanks
In the spirit of giving out information on these Mitsubishi MM series excavators (MM50SR, MM40SR, MM30SR) I’ve started to put all my information on my websitewww.woodandtrees.co.ukwhich you are welcome to access.It includes the MM50 electric diagrams, fault finding and error codes that “tool_king” and others have posted, Parts Manual and SL series engine operation, maintenance and service manuals. There is also some other stuff on my own machine MM30SR and information from “IronDino333” on ram seals.If anyone has more information (or write ups on what they have done on their MM machines) and are willing to share, just contact me via messages and I’ll add it to the site.Hopefully this is useful.Graham
Can you send the manual for Mitsubishi mm40-55sr please. Here is my mail[email protected]
StnkyPete said:I have copies of section Vi and Section VII of what I think is the service manual for an MM55SR if anyone is interested. They contain a lot of information about the electrical side of the machine, wiring diagrams, functional descriptions, trouble shooting and fault codes etc.Post your email address and I'll send them through. CheersClick to expand...Can you send the manual for Mitsubishi mm40-55sr please. Here is my mail[email protected]
Downloaded the copies from Graham (Thanks Graham); I also found the section VI and section VII manuals. If anyone comes across or has other information I would appreciate it, even in Japanese. I can translate it.[email protected]
Would you be willing to send the mm 30 manuals ? Having no luck with the boom/stick/curl controlsBought the hoe not running and not having any luck
Roman125 said:Can you send the manual for Mitsubishi mm40-55sr please. Here is my mail[email protected]Click to expand...[email protected]
Yeh I'll send what I have. They are also available on my web sitehttps://www.woodandtrees.co.uk/If the tracks and blade work, its something to do with the electrics/electronics. I've had this problem and it was a bad connection on the safety arm switch/relay connections. Below the seat there are two doors, the first one is the heater and safety arm switch, so check the switch connections. The second door holds 4 relays and a glow plug timer. The 3rd one away from you, Start Safety Relay, is connected to the safety arm. Yellow wire. Worth proving these connections with a resistance meter. It should click as you operate the safely arm but can be difficult to hear with the engine running so put your hand on it to feel it clicking. There is a wiring diagram for this in the MM50 manuals which I believe is the same as the MM30.
td6man said:I have had the same problem. Have either of you fixed your problem yet? I have a copy of the Diagnostic Manual for the Electronic system for Mitsubishi MM30SR , MM40SR , MM55SR , MM55SR-2 These were translated from the original Japanese. Also have parts manual for MM30SR. Does anyone know how I could reach these guys? Thanks td6manClick to expand...I it si possible to have the manuel ?
If any function of the electric over hydraulic system fails, the whole electric control system stops. this could be from just a frayed lead going to the position potentiometers on the boom or corrosion in the connections, particularly ay the control box so check all these first.. But most likely it is from an out of whack joystick. A couple years ago I led a fellow from Russia through the diagnostic procedures and he figured out how to readjust the sensors and potentiometers in the joysticks. Those discussions with him are about 2-3 pages back (2020) in this forum. Suggest you read them and see if you can't follow them to determine if it is a joystick problem. There are test points in the control box and these past posts tell how to use them for diagnostics. Lots o' luck to you. But to hell with Putin and his forces in Ukraine.
mick18 said:I it si possible to have the manuel ?Click to expand...No problem I've emailed them to you.
hi everybody. I'm having difficulty with the hydraulics on the mm55sr excavator. I was removing the battery to charge it. then he put it back in its place . I tried to start it . it didn 't start . I remembered that I had not connected the minus cable to the battery, without disconnecting the ignition switch, I connected the cable to the battery. after that, I started the excovator. but the electrical control is gone. the stroke and blade are working. I opened the computer . there is no indication of error diagnosis. there is only a row of yellow LEDs. they give flashes . at half brightness and at full brightness .error codes for the display that is located under the joystick . 0033 : 0052: 00A8: 00b6
I also want to make a diagnosis in the computer. who can look and write which transistors tr15-tr17. as well as ra27-ra28. should be installed? and does it make sense? maybe the firmware does not provide an indication?
T-in-T said:operatorClick to expand...Graham Hamilton said:No problem I've emailed them to you.Click to expand...My courriel is[email protected]thank you
mikolaj said:hi everybody. I'm having difficulty with the hydraulics on the mm55sr excavator. I was removing the battery to charge it. then he put it back in its place . I tried to start it . it didn 't start . I remembered that I had not connected the minus cable to the battery, without disconnecting the ignition switch, I connected the cable to the battery. after that, I started the excovator. but the electrical control is gone. the stroke and blade are working. I opened the computer . there is no indication of error diagnosis. there is only a row of yellow LEDs. they give flashes . at half brightness and at full brightness .error codes for the display that is located under the joystick . 0033 : 0052: 00A8: 00b6Click to expand...I think the error diagnosis codes are being displayed on the display below the joystick. Graham Hamilton,s web site has a list of error codes. On page 277 of his info for the MM55SR at the bottom of page "error code B6 and A8 can be neglected". Page 275 code 33=swing in ,code 52=front/back of LH below 2.3 vMaybe this will help
mikolaj said:I also want to make a diagnosis in the computer. who can look and write which transistors tr15-tr17. as well as ra27-ra28. should be installed? and does it make sense? maybe the firmware does not provide an indication?View attachment 300235Click to expand...The led modules 14, 15 would indicate error codes. Tr15-17 and resistors are associated with these leds.Your error codes are being sent to the display below the joystick, I think.
I removed the original electronic system to install relocated proportional joysticks. I connected my joystick to the coils on top of the body valve. The joystick sends 0-12v to the coil but I have no proportional action on the coils. My functions are on off. The coil does not act proportionally. Is it the coil on the body valve that controls the functions or is it the block with 5 wires in the end of the spool?
mick18 said:I removed the original electronic system to install relocated proportional joysticks. I connected my joystick to the coils on top of the body valve. The joystick sends 0-12v to the coil but I have no proportional action on the coils. My functions are on off. The coil does not act proportionally. Is it the coil on the body valve that controls the functions or is it the block with 5 wires in the end of the spool?Click to expand...
mick18 said:I removed the original electronic system to install relocated proportional joysticks. I connected my joystick to the coils on top of the body valve. The joystick sends 0-12v to the coil but I have no proportional action on the coils. My functions are on off. The coil does not act proportionally. Is it the coil on the body valve that controls the functions or is it the block with 5 wires in the end of the spool?Click to expand...The block with the five wires is the lvdt feedback to let the electronics know how much the spool has moved and which direction. This feedback cancels out the demand going to the valve to keep it from saturating in the open or close/in or out.
JDC21 said:The block with the five wires is the lvdt feedback to let the electronics know how much the spool has moved and which direction. This feedback cancels out the demand going to the valve to keep it from saturating in the open or close/in or out.Click to expand...Ok and do you know if the original 10 coil on valve are proportionnal 0-12 v ?
If you have feedback, I would say they are not proportional. I am looking at the description of MM55SR solenoids, "using high response solenoids and differential transformer (lvdt)"Why are you doing away with your electronic controls?
JDC21 said:If you have feedback, I would say they are not proportional. I am looking at the description of MM55SR solenoids, "using high response solenoids and differential transformer (lvdt)"Why are you doing away with yourJDC21 said:If you have feedback, I would say they are not proportional. I am looking at the description of MM55SR solenoids, "using high response solenoids and differential transformer (lvdt)"Why are you doing away with your electronic controls?Click to expand...Because the previous owner had problems with the original joysticks and the modified system with on/off micro switches. It's really not pleasant to operate. I removed everything and relocated the adjustable proportional joystick. Do you have an electrical plan? Or a part number for the coils I can't find anything anywhereClick to expand...
Sorry, I am unable to help you on the "proportional hookup". Maybe others can help.
I'm not sure about this machine's solenoids and what signal they get .....but it's common for proportional solenoid valves to get a Pulse Width Modulation signal (PWM) from the controller. The 12Volts is pulsed many times per second. The longer the ON pulse the more power goes to the solenoid and the more it moves. If it's PWM you should see on your multimeter the "average" voltage change on the solenoid terminals as you move the joysticks. ie 0 to 12V swing.The LVDT tells the controller where the spool is and I would have thought this signal would be used to adjust/trim the PWM to the solenoid as a feedback loop stopping it over shoot etc.
Looking for a parts place for a potentiometer mm30srThe potentiometer on the stick and boomWires have been ripped outAnd was told I can’t spilt it to splice the wires
I've never seen a MM30SR parts manual but I've attached the MM50 parts manual diagrams which might help. Part 12 (PA 4786) seems the potentiometer but I didn't find this on a web search.There are parts suppliers in Japan which might help.https://www.maxis.jp/andhttps://japanmachineryparts.com/mitsubishi.Australia is another country who seem to have Mitsubishi excavators. Found this company which might be of help.https://excavatorparts.com.au/category/mitsubishi/Let us know how you get on
My swing on my mm40 sr are to fast . Anybody know were is the adjustment ?