Compressor HVAC: Service and Repair

The A/C compressor may be unbolted and repositioned without discharging the refrigerant system. Discharging is not necessary if removing the compressor clutch/coil assembly, engine, cylinder head, or alternator.

WARNING: REFRIGERANT PRESSURES REMAIN HIGH EVEN THOUGH THE ENGINE MAY BE TURNED OFF. DO NOT TWIST OR KINK THE REFRIGERANT LINES WHEN REMOVING A FULLY CHARGED COMPRESSOR. SAFETY GLASSES MUST BE WORN.

REMOVAL
1. Disconnect Negative battery cable.
2. Loosen and remove drive belts.
3. Remove refrigerant from the A/C system with a refrigerant recovery machine. if the compressor is being replaced.
4. Remove refrigerant lines from compressor and disconnect electrical connector.
5. If system is left open place plug/cap over open lines.
6. Remove compressor attaching bolts.
7. Remove compressor. If refrigerant lines were not removed, lift compressor/clutch assembly and tie it to a suitable component.

INSTALLATION
For installation, reverse the above procedures. Torque Compressor bolts to 28 N.m (21 ft. lbs.)

NOTE: Most reclaim/recycling equipment will measure the lubricant being removed. This amount of lubricant should be added back to the system. If a new compressor is being installed, drain lubricant from old compressor, measure the amount drained and discard old lubricant. Drain the lubricant from the new compressor into a clean container. Return the amount of lubricant measured from the old compressor, plus the amount reclaimed from the system back into the new compressor.