To check the air compressor governor cut-in and cut-out pressures, you should:

Run the engine at a fast idle.. Section 5.3: Run the engine at a fast idle. Pressure should stop rising at 125 psi (cut-out) and start

To check the air compressor governor cut-in and cut-out pressures, you should:

ANSWER BREAKDOWN
  • A. Correct. Run the engine at a fast idle. Pressure should stop rising at 125 psi (cut-out) and start rising again at 100 psi (cut-in).
  • B. Incorrect. "Drive the vehicle." is not correct. Run the engine at a fast idle. Pressure should stop rising at 125 psi (cut-out) and start rising again at 100 psi (cut-in).
  • C. Incorrect. "Drain the tanks." is not correct. Run the engine at a fast idle. Pressure should stop rising at 125 psi (cut-out) and start rising again at 100 psi (cut-in).
  • D. Incorrect. "Use the parking brake." is not correct. Run the engine at a fast idle. Pressure should stop rising at 125 psi (cut-out) and start rising again at 100 psi (cut-in).