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cat 973

  1. 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.
  2. Z

    Cat 963 vs 973 vs 983, Which to Purchase?

    I’m in the market for an old track loader and hoping to get one home with a complete filter and fluid change around $30k. I have a few bookmarked yet being new to heavy equipment I would appreciate any advise you care share between the different models. For example, on a hill, which will have...
  3. Len220

    Cat 973 fuel injector pump - no fuel

    Cat 973 S# 86G032XX Built July’97 (from cat web site) Engine 3306 DIT Eng. No: 13Z400XX There is no fuel coming into the injector lines, only a slight dribble out of a couple of the plunger units. My key question: What is the length of travel of the fuel rack ? History: The 973 had been...
  4. J

    973 boom drifting down

    I recently bought a 973. S/N 66G00946. It had been sitting for several years and I’m trying to get all the bugs worked out of it. Changed all fluids and filters and all mostly works good. I’m having an issue with the boom drifting down. Slowly most of the time but once I get to working it...
  5. Len220

    Cat 973 86G032xx - Hydrostatic Transmission and Brakes.

    I have a Caterpillar 973, serial number 86G032XX, 07/97 in NSW, Australia. It is the second series of machines made in France. The previous owner had it sitting in a quarry for many years after a mechanic adjusted/serviced the hydrostatic transmission. They reversed up the machine and then it...
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