Rotating Torque Check

NOTE: The rotational torque of a used A/C compressor should be checked if excessive A/C compressor drag is suspected. It may be necessary to remove the A/C compressor from the vehicle for this test.

1. Recover the refrigerant from the system
2. Remove the A/C compressor






3. Rotate the A/C compressor shaft clockwise. Note the torque required to rotate the shaft one complete rotation. Verify that the noted torque is less than specification.
4. Install the A/C compressor.






5. Leak test the A/C system.
6. Check the A/C system for proper operation.