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  1. S

    John Deere 544J and 644J front axles

    I have several of these machines and they have never given me any problems, all are in the mid teens hour wise. This last week a 544J and a 644J have gone done with the same issue, front axle gets red hot and pukes hydraulic oil out of any orifice it can go. Any ideas? Brakes etc work fine...
  2. S

    JD644B steering

    Have a 644b that when cold will steer ok, but when hot it will not steer to the left. Right cylinder is reading 134 front and 134 rear of cylinder, left cylinder is reading rear 134 and front 104 degrees when measured with Lazer thermo gun. Seals on piston leaking by is my first thought but...
  3. S

    CAT 938G, transmission

    Checked electrics and removed and cleaned vlave body, no apparent issues. Ordered a PCM and will change it as a hail mary and see if anything happens.
  4. S

    I hate CAT 345's.

    The system was drained of contaminated oil after the various failures and obviously the filters all showed signs of metal contamination and were changed. Whilst running tests on the machine yesterday the pilot filter exploded so I guess there is still metal floating around the system and...
  5. S

    I hate CAT 345's.

    Having had many issues with two other 345's and having got them out of my hair at auction, I am now confronted with another one. This is the series of events. Boom and stick functions no fine control, then no left travel motor, no swing and no boom. Repaired swing, travel and bad boom...
  6. S

    CAT 938G, transmission

    Thanks Nige I have the schematic and will keep y'all informed of my progress today.
  7. S

    CAT 938G, transmission

    It has a new shifter on it and still the same, will tear loom apart I guess. Thanks everyone for the input so far.
  8. S

    CAT 938G, transmission

    I have a 4YS serial number 938G. The trans sometimes will not come out of forward, I can put the shifter into N or R and the loader will drive and shift forward. There are no fault codes on ET. I wiggled the steering column and the fault would appear and disappear for a time but would...
  9. S

    DEF/DPF filter cleaning.

    I have a bunch of 2011 Mack GU713 dump trucks. How easy is it to change or clean the DEF/DPF filter, the trucks have the MP7 engine.
  10. S

    Cmi rs500

    We just bought this machine and it goes through carbide bullet teeth very quickly, does anyone make diamond tip teeth for this machine. Also, it uses a 8v1400 belt for the drum drive, it is going through one of these a week. The belt pulley has 6 inches of adjustment on it but the belt only...
  11. S

    Teeth

    This sounds very interesting, please let me know the details, thanks.
  12. S

    9 wheel roller

    Just got an older Hyster 9 wheel roller. The 3rd tire on the rear is flat any idea's on how to get it out of the machine? Thanks
  13. S

    CAT 345 won't walk.

    The screens are ok and will check the suction hose today. With the pins in the brakes it will not walk. Thanks.
  14. S

    CAT 345 won't walk.

    Thanks for the responses today, took the pins out of the brakes at the travel motors and it walks. If you read all of the posts you will see that the machine has a new pump, pilot pump, main relief valve, resealed main control valve. Put the pins back in and it won't walk, isolated the fan...
  15. S

    CAT 345 won't walk.

    All pump pressures are ok as described in earlier post, also the main relief valve is new, the swivel has been re-sealed as has the main control valve.
  16. S

    CAT 345 won't walk.

    Sorry for the delay, not using the machine obviously. We took the pump off and it had torn up the rotating groups. Put reman pump and pilot pump on and got CAT dealer out to re-do pressures. Machine still won't walk, CAT dealer changed MRV-seat was hammered-and still won't move. Pump is...
  17. S

    CAT 345 won't walk.

    I have an AGS ser# CAT 345 that will not walk. When you push the pedals the tracks tension up but it doesn't move, if you keep the pedals pressed the motor lugs down and tries to stall. There is also a significant time lag when operating the two joysticks before the machine will operate and...
  18. S

    If not CAT who then? Are JCB Excavators good?

    I have 17 hoe's 16 CAT and 1 Komatsu. 6 years ago I also had two KOM PC450, in the 5 years that I had them except for PM services they cost me a total of $4977.14. (Final drive seal failed and chewed it up) I put over 10k hrs on them without any problems, my current KOM is a PC210, which I...
  19. S

    725 fuel in exhaust

    I have an AFX serial# CAT 725. The truck was working the other day when the operator stopped the truck because the engine started to bellow white smoke out of the exhaust. Diesel fuel is pouring out of the turbo, I think I know the answer to the problem but would invite some insight.
  20. S

    CAT 345 Hydraulics

    Update, sorry for the length of time between posts. Went to do some work on the machine and the problems have gotten worse. The machine will not move, at full rpm and you move the travel levers the machine tries to move forward then bogs downwithout moving an inch. Had a similar problem on a...
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