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hydrostatic transmission

  1. A

    953 hydro whine

    I have a 953 track loader I purchased about a year ago. I replaced the head on it and have finally found the time to get it back together, it seems to run and track great but it whines pretty loud at idle until you put in in forward or reverse, at that point the noise goes away instantly, I have...
  2. C

    333D Travel Trouble

    I’ve got a 333D that blew a line for the left drive motor. Was operating perfect, just blew a line that had a bad spot on it. After I replaced the line, it traveled approximately 30 feet and the left track started to barely move. All other functions work perfect. I’ve put a new drive motor on...
  3. P

    D4K travel speed drops to minimum under load

    I am working on a D4K, SN: MM00277, that equals shows both track speeds to what seems like minimum when pushing. If the operator goes to neutral and back to forward or reverse it immediately recovers. Pump charge pressures are well within spec. If I unplug the hydrostatic drive pressure sensor...
    • PB1
    • Thread
    • d4k d5k hydrostatic transmission
    • Replies: 0
    • Forum: Dozers
  4. Z

    Hydrostatic Transmission Check on a 963 or 973.

    Hydrostatic Transmission Check. I’m looking to buy an eighties 963 or 973 with a Hydrostatic Transmission. I have never driven a Hydrostatic Transmission. What are some ways to check it out? How would one tell if it’s going bad or is good? Best Regards, Steve Z.
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