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  1. S

    1964 Cat 944

    Not to be redundant, but what about the arms from a 922?
  2. S

    our 1969 case 580b hydraulics quit working while trenching. HELP

  3. S

    our 1969 case 580b hydraulics quit working while trenching. HELP

    it does have pressure on tank. Yes.
  4. S

    our 1969 case 580b hydraulics quit working while trenching. HELP

    It's a 225 Cat excavator. We had catastrophic failure of the left pump ( controls swing and left track). Since the repair, the gasket in the rebuilt pump keeps blowing out. The dealer thinks it's being caused by a collapsing hose.
  5. S

    our 1969 case 580b hydraulics quit working while trenching. HELP

    Is there a procedure to find an internally collapsed hose? It is suspected that this is the problem I'm having.
  6. S

    1964 Cat 944

    Thanks
  7. S

    1964 Cat 944

    What about from a 1968 950, will they fit '64 944?
  8. S

    1964 Cat 944

    Thanks
  9. S

    1964 Cat 944

    Does anybody know if the loader arms are the same for a 1964 Cat 944 loader and a 1971 Cat 950 loader ?
  10. S

    1985 225 Cat excavator 51U 3208 motor

    Thanks. I'm working towards that.
  11. S

    1985 225 Cat excavator 51U 3208 motor

    I'm new at this hydraulic repair, where are the relief valves located?
  12. S

    1985 225 Cat excavator 51U 3208 motor

    Pump destroyed all 9 pistons. I rebuilt pump. It works, but seems to be building up internal pressure and blew the gasket. All lines are clear and the filters have been changed. Any Ideas?
  13. S

    1985 225 Cat excavator 51U 3208 motor

    Just recently got this excavator. Worked fine then stopped swing and travelling left track without warning. Fluid level is good. It makes no attempt to swing or travel left track. No change in motor while trying to swing or travel. Right track travels fine, main boom operates fine, dipper not...
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