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  1. Eric Martin

    Manual for the KOMATSU PC50UU

    My pump brass plate was scratched….I cut the filter apart and washed it out with diesel and you could see brass colored filings. So I pulled the pump and took it apart and the brass plate was very worn. Sorta surprised me because my psi was almost up to specs. I guess that’s where a flow meter...
  2. Eric Martin

    Manual for the KOMATSU PC50UU

    ok partsdic... what does this manual cost me...pc50mr-2...serial number is above my email is erikguat25@gmail.com
  3. Eric Martin

    CAT 924K engine parts

    Yes partsdic, thanks. I know OEM is best….but thought mabey someone has done rebuilds with aftermarket and has had good success
  4. Eric Martin

    CAT 924K engine parts

    Thanks Nige, I am quoting them thru cat right now. We will see what price they come up with
  5. Eric Martin

    Manual for the KOMATSU PC50UU

    Hello ToolKing I’m looking for a manual for this machine? I don’t know if it’s the same? I need to diagnose hydrualic issue
  6. Eric Martin

    Cat 924K engine

    I am looking for a CAT 924K wheel loader engine….a used engine or just parts. Mostly a crank. But would take a whole engine
  7. Eric Martin

    CAT 924K engine parts

    I need to rebuild the engine on this CAT 924K….are there aftermarket options or just OEM The crank is bad and two connecting rods
  8. Eric Martin

    Case 580SL high circulation pressure

    ok it seems to be all the same problem. when i opperate any of these 3 functions the e-hoe, swing, or the steering. the two worst are the e-hoe and the swing. if i start to move the spool just a little even before the swing starts to move it lugs the engine down and you can here the relief open...
  9. Eric Martin

    Case 580SL high circulation pressure

    So here is the flow divider spool….from the loader valve. It has scratches the whole way around I’m. Is that enough to cause the issue
  10. Eric Martin

    Case 580SL high circulation pressure

    So in the circuit, back thru the backhoe valve and front to the tank, you do t think I should get any readable psi? I was going down more the row of obstruction or clogged passage way….. Thanks for your reply….it will give me some areas to try I will keep you posted
  11. Eric Martin

    Case 580SL high circulation pressure

    Any help on this?
  12. Eric Martin

    Case 580SL high circulation pressure

    Hey guys, I have a problem on a 580SL. The engine and hydrualic system were running hot and the engine was lugging down to much. Fuel system seems alright, so I threw a gauge on the hydraulics and the circuit pressure with all the functions in nuetral position the psi is 500 to 550 at an idle...
  13. Eric Martin

    580sm+ powershift transmission, 4wd not disconnecting

    Also another question....now when its traveling in 2wd and you brake the 4wd connects. Like it did before, but now it clunks when it engages. it did not do this before it was run i 4wd solid for awhile any ideas what could be the issue. does this i was seeing a diagram with a limited slip?. is...
  14. Eric Martin

    580sm+ powershift transmission, 4wd not disconnecting

    i finally got this project done: thanks alrman that was the trick...i had a faulty sensor
  15. Eric Martin

    580sm+ powershift transmission, 4wd not disconnecting

    Is it these that switch the 4wd on and off?
  16. Eric Martin

    580sm+ powershift transmission, 4wd not disconnecting

    i was trying to find info on what signals the trany control to connect the 4wd when braking....is it the pressure sensor on the brake line down on the rear axle?
  17. Eric Martin

    580sm+ powershift transmission, 4wd not disconnecting

    Hey that’s a good idea, if that switch is stuck it could keep the 4WD engaged I’ll leave u know
  18. Eric Martin

    580sm+ powershift transmission, 4wd not disconnecting

    hello guys i am working on a 2008 case 580SM+ backhoe w/powershift trany the 4wd is not disconnecting, stays in 4wd all the time I traced the power to the control module in the steering column. i have power from the switch to the control module, but not coming out. and i traced and checked the...
  19. Eric Martin

    Cat 420d resolver location

    Let me check again
  20. Eric Martin

    Cat 420d resolver location

    The trouble i am having is the stick in and bucket curl functions are slow until i operate any other function and they come to life i changed all the primary and secondary resolver orings, and it stayed the same any other ideas
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