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air in hydraulics

  1. H

    How to bleed air from hydraulic system? - CAT 304

    Hi all, I'm starting a new thread for this issue. The original issue resulted in me removing the main control valve, cleaning it up, and installing new seals: https://www.heavyequipmentforums.com/threads/final-drive-motor-on-one-side-bogging-down-engine-cat-304cr.95940/ It's a 2004 Cat 304cr...
  2. Liviu Popescu

    Cat 950F Hydraulic Brake noise

    Hi all. We have some issues with our wheel loader, CAT 950F Series II. From what I can tell they are hydraulic over hydraulic brakes. Serial number is 8TK01037. There is a strange noise coming from around the accumulator charge valve. It started happening immediately after we replaced the...
  3. C

    CAT 245B air in pilot system & intermittent no track brake release

    Hey all, this one has me a bit stumped. Customers machine, 6MF0-200 s/n. Just wondering if anyone has had issues bleeding air out of the pilot system. A few hundred hours ago customer had a RH joystick pilot hose replaced and routed incorrectly. I went out, corrected the hose, bled pilot...
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