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  1. L

    Cat 277B bucket hydraulic problem

    Here is an update. Found the problem. It was the jumper in the door switch. When I put the door on and plugged it in everything works!
  2. L

    Cat 277B bucket hydraulic problem

    Traced all wiring on the harness inside the cab and found no issues.
  3. L

    Cat 277B bucket hydraulic problem

    Disconnected lights and same problem when front lights turned on, no bucket controls
  4. L

    Cat 277B bucket hydraulic problem

    When I run the rear lights it doesn't kick out the bucket hydraulics
  5. L

    Cat 277B bucket hydraulic problem

    How would I fix that if it were the case? All of the grounds run down to the grounding bar under the cab
  6. L

    Cat 277B bucket hydraulic problem

    Just started it recently. Been a while since it was used at night, that's when I discovered the problem. Also the door has been removed and the switch jumpered
  7. L

    Cat 277B bucket hydraulic problem

    Bucket controls work fine with the front lights off. Only cuts out when front lights are turned on.
  8. L

    Cat 277B bucket hydraulic problem

    Lights work when the switch is turned on and it drives also. It only cuts out the bucket controls
  9. L

    Cat 277B bucket hydraulic problem

    I have a Cat 277B skidsteer. When i turn on the front lights, it disables the bucket hydraulics on the right stick. Lights off and everything works fine. I have lifted the cab and searched for any worn or damaged wiring. Also have replaced the front light switch and the hydraulic...
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