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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

    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...
  4. 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...
  5. 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.
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    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...
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    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
  8. 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...
  9. 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.
  10. S

    CAT 345 Hydraulics

    AGS01473 has had MCV rebuilt, two new joysticks. When AEC is on, hydraulic function drops off, now hydraulic function is very slow. 60 man hours from two CAT dealers and I'm being told by one that it is the logik valve and the other the pump. My diagnosis is the pump and yesterday the...
  11. S

    CAT 725 differentials

    I have a fleet of Cat 725 ADT's, a few months ago I had to change the front differential on my AFX01320 machine. It was completely destroyed it looked like something had come apart inside and done the damage. Sourced a good running takeout and installed and put the truck back to work. Within...
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