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Mitsubishi mm30sr

Discussion in 'Excavators' started by casey, Jul 24, 2008.

  1. casey

    casey New Member

    Joined:
    Jul 24, 2008
    Messages:
    1
    Location:
    graham wa.
    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 casey
     
  2. Countryboy

    Countryboy Senior Member

    Joined:
    Jun 8, 2006
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    3,276
    Occupation:
    Load Out Tech. / Heavy Equipment Operator / Locomo
    Location:
    Georgia
    Welcome to Heavy Equipment Forums casey! :drinkup
     
  3. dermagon

    dermagon New Member

    Joined:
    Sep 1, 2008
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    Location:
    victoria b.c. canada
    mm30sr

    I 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.
     
  4. ben46a

    ben46a Senior Member

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    Location:
    Waverley NS/Fort Mac AB
    Are they pilot operated hyraulic systems?
     
  5. dermagon

    dermagon New Member

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    Location:
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    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.
     
  6. JimInOz

    JimInOz Senior Member

    Joined:
    Apr 15, 2008
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    405
    Occupation:
    Spare Parts Supplier
    Location:
    Victoria, Australia
    Mitsy

    I'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
     
  7. dermagon

    dermagon New Member

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    Location:
    victoria b.c. canada
    Casey Did you ever solve the problem with your machine. Dan
     
  8. finaldrive

    finaldrive Senior Member

    Joined:
    Jan 23, 2009
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    Occupation:
    Product Manager
    Location:
    Southern California
    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.
     
  9. td6man

    td6man New Member

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    Feb 20, 2010
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    Location:
    WA state
    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
     
  10. finaldrive

    finaldrive Senior Member

    Joined:
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    Occupation:
    Product Manager
    Location:
    Southern California
    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.
     
  11. td6man

    td6man New Member

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    Feb 20, 2010
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    Location:
    WA state
    Mm30sr

    No, 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
     
  12. dermagon

    dermagon New Member

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    Location:
    victoria b.c. canada
    Hi td6man
    I 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.
     
  13. td6man

    td6man New Member

    Joined:
    Feb 20, 2010
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    Location:
    WA state
    MM30SR Fix

    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)
     
  14. XxTrasHxX

    XxTrasHxX Member

    Joined:
    Jan 27, 2010
    Messages:
    20
    Location:
    Toronto Canada
    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
     
  15. wayneo

    wayneo Member

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    Mar 27, 2010
    Messages:
    8
    Location:
    vic australia
    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.
     
  16. Woodboatdave

    Woodboatdave Member

    Joined:
    Apr 7, 2008
    Messages:
    22
    Occupation:
    excavation/pipelaying
    Location:
    rhode island
    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
     
  17. td6man

    td6man New Member

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    Feb 20, 2010
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    4
    Location:
    WA state
    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.
     
  18. mcorrive

    mcorrive New Member

    Joined:
    Apr 2, 2010
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    Location:
    Vermont
    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 smarshall@hrparts.com), he was very helpful. You should be able to get manuals from them, but they are in Japanese.

    Mike
     
  19. mcolli10

    mcolli10 New Member

    Joined:
    Apr 9, 2010
    Messages:
    1
    Location:
    Australia
    Hi TD6man,
    Are you still open to make copies of the MM30sr manual. If so, what's the best way to contact you?
     
  20. john t4

    john t4 New Member

    Joined:
    Apr 17, 2010
    Messages:
    1
    Location:
    Ogdensburg, N.Y. 13669
    hello can you tell me where to get english manuals for the electronics on my MM55SR-2 ? I'm having similar problems thank you