Compressor HVAC: Service and Repair

CAUTION: Add only new lubricant when system requires additional lubricant. Do not use old reclaimed lubricant.

REMOVAL
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.

1. Disconnect battery negative cable.
2. Loosen and remove drive belts.
3. Using a R-134a refrigerant recovery machine, remove the refrigerant from A/C system. If the compressor is being replaced.
4. Disconnect compressor clutch wire lead.

A/C Compressor Lines:

5. Remove refrigerant lines from compressor, if necessary.
6. If system is left open place plug/cap over open lines.

A/C Compressor Mounting Bolts:

7. Remove compressor attaching bolts.
8. 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.
- Tighten the compressor mounting bolts to 28 Nm (250 in lbs).
- Tighten the compressor lines to 12 Nm (108 in lbs).