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690d pilot pressure adjust

wrc ยท 2015-08-26 23:20

can any one tell me the exact process to check and adjust pilot pressures on a 1987 690d deere? I believe I have seen in the past pressure should be 500 psi but I don't know where to start and have no manuals

Replies4
  1. #1uffex2015-08-27 04:24

    Try this one www.excatech.org > library > checking pilot-servo pressure. Kind regards Uffex

  2. #2ANDREW C2015-08-30 23:58

    Install a gauge with a 8 jic tee at the regulator under the control valve and run at slow idle. Adjust the regulator valve to 350-500 psi

  3. #3wrc2015-09-01 22:52

    thanks Andrew that's exactly the info I was looking for. now can you tell me where to look on the machine for the regulators?

  4. #4ANDREW C2015-09-03 00:40

    Shows it under the control valve. Honestly not 100% sure