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  1. just-a-mechanic

    Volvo EC210 Excavator

    Perhaps a broken wire in the safety circuit. Use a multimeter and see if you have continuity in the wire beginning at the switch and then as far away as you can trace the wire. Do this for both legs of the safety switch system. Sounds like it is the most likely culprit. I would chase it all...
  2. just-a-mechanic

    Volvo EC-140C - what tool to remove this piston lock nut

    I cannot view this it tells me.
  3. just-a-mechanic

    Volvo EC-140C - what tool to remove this piston lock nut

    If anyone else would like to know the proper tool to remove the piston and lock nut assembly. This is it above.
  4. just-a-mechanic

    Volvo EC-140C - what tool to remove this piston lock nut

    Hey thanks for the torque specs! however do you know what tool to remove the nut in the picture? Or what the tool is called?
  5. just-a-mechanic

    Volvo EC-140C - what tool to remove this piston lock nut

    As the title says what is the correct tool to remove this lock nut from my boom hydraulic cylinder? The outside dimension is 75 mm. The grooves are 5 mm deep. Across the flats the interior dimension is 65 mm. What is the proper term for this nut? Lock nut Spindle nut Groove nut I think I...
  6. just-a-mechanic

    Need Help finding seal kit 2006 EC140CL

    That neighbor doesn’t use the machine any longer. Obviously, I decided on a second failure that this guy was done. Damage has already been done however. Also, so it’s understood, this was the first seal repairs. I have not removed it to see how it failed this time. So any Volvo guys on here...
  7. just-a-mechanic

    Need Help finding seal kit 2006 EC140CL

    the two times I’ve replaced it, was due to what I assumed to be poor operator use. I let a neighbor borrow it, and this has happened the two time the neighbor borrowed it. The cylinders end up bypassing internally. The air hammer damage the locking nut was done at the hydraulic shop. We had...
  8. just-a-mechanic

    Need Help finding seal kit 2006 EC140CL

    I have paid twice to have these boom kits to be sealed. I need to investigate why it keeps happening but that will be done before long. I have tried to find aftermarket seals for the boom arm in this machine. I have not been able to find an alternative. The two times I had the seals replace...
  9. just-a-mechanic

    1996 D31P-20 Final drive

    Damage to clutch and hub assemblies:
  10. just-a-mechanic

    1996 D31P-20 Final drive

  11. just-a-mechanic

    1996 D31P-20 Final drive

    This is how I will press the clutch hub on the short pinion shaft.
  12. just-a-mechanic

    1996 D31P-20 Final drive

    Hey all! I had issues switch my steering clutch:brake assembly and one thing has lead to another. Following the last guy that slapped this dozer together -to sell- has cost me thousands. In short, I’m looking for a final drive shaft, large bull gear and hub for the final drive assembly. I...
  13. just-a-mechanic

    D31P-20 SN# 47699 Steering Clutch/Brake

    I didn’t notice if it was machined. But I did notice no wear seemed to be on the outer drums. If you look at the pictures above, it seems like someone replaced both of these assemblies. The steering clutch case area is clean indicating to me it has always been an oil bath, but the manual says...
  14. just-a-mechanic

    Komatsu D37E-1 Dozer with Issues

    Thanks John! the -20a I was referring to was the D31P-20a or D31P-20. They are separate in the manuals but I haven’t really found any differences between them. Thanks!
  15. just-a-mechanic

    Komatsu D37E-1 Dozer with Issues

    John, Komatsu D31P-20 SN# 46799 Can you see what year my machine is? I was told about a 96. My tag is missing on my machine, so I dont know if it is a -20A or not etc...
  16. just-a-mechanic

    Komatsu D37E-1 Dozer with Issues

    Try looking here. I have used this to look up parts for my D31P-20. Search for a local Komatsu dealer near you, they still have the parts for these machines, but it is going to cost you! At least you can see how it is put together using the parts manual below. I use an adblocker so I dont...
  17. just-a-mechanic

    D31P-20 SN# 47699 Steering Clutch/Brake

    Hey Guys! So I have been digging into this Dozer, its seems all D31P-20 and series such as this use the same steering brake and clutch plates and frictions. My Shop manual states some are wet style and some are Dry. It appears that doesn't matter to the disc assembly either bathed in oil or...
  18. just-a-mechanic

    Solenoid coil

    That was the entire valve, not just the solenoid, price about 1,200 bucks when I looked it up. Or I hope thats the entire valve, not just the solenoid. 114-62-47140 VALVE,SOLENOID fits Komatsu® $1,186.28 ??
  19. just-a-mechanic

    D31P-20 SN# 47699 Steering Clutch/Brake

    Well what I kinda think is that the clutch and band assembly came from another dozer perhaps, or the "rod" that holds one end static, but it would have to be both sides, and both sides behave the exact same way. Kinda odd - Either way, a 3/8 steel spacer fixed my issues for now, I dont see why...
  20. just-a-mechanic

    D31P-20 SN# 47699 Steering Clutch/Brake

    Hey Southerman! Yeah I seen it, it seems like there are a set of bearings in that shaft as well. But mine were free when I disassembled it. Thanks for the in put however. I have ordered the parts for the damper. Its not a bad job, I don't think. Fairly easy to get to as well. Parts are...
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