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CAT 277C Lift Arm Not Raising, HELP!

Thomas Kraft · 2020-11-25 23:48

All, Thanks for your help in the past, I have another one for you. After starting the machine, releasing the parking brake, pulling back on the joystick won’t raise the working tool arm. I can’t even move the bucket open or close. I do get an exclamation mark flashing. Any ideas?

Replies2
  1. #1Nige2020-11-26 10:37

    So you have no bucket controls (lift, lower, tilt, etc) whatsoever, correct..? When does the exclamation mark start flashing.? When you first start the machine, when you release the park brake, or when you try to operate the hydraulics.?

  2. #2Thomas Kraft2020-12-05 20:36

    Yes sir, that is correct. It starts flashing when I turn the key to warm the glow plugs, before the machine can even be turned over.