Compressor HVAC: Service and Repair
REMOVALCAUTION: If installing a new air conditioning compressor due to an internal failure of the old unit, you must carry out the following procedures to remove contamination from the air conditioning system:
^ If A/C flushing equipment is available, carry out flushing of the air conditioning system prior to installing a new air conditioning compressor.
^ If A/C flushing equipment is not available, carry out filtering of the air conditioning system after a new air conditioning compressor has been installed.
^ Install a new evaporator core orifice as directed by the A/C flushing or filtering procedure.
^ Install a new suction accumulator as directed by the A/C flushing or filtering procedure.
NOTE: Installation of a new suction accumulator is not required when repairing the air conditioning system except when there is physical evidence of system contamination from a failed A/C compressor or damage to the suction accumulator.
1. If flushing of the air conditioning system has not been carried out, recover the refrigerant.
2. Remove the air cleaner assembly.
3. Remove the accessory drive belt from the A/C compressor pulley.
4. Disconnect the A/C compressor clutch field coil electrical connector.
5. Disconnect the compressor manifold and tube assembly from the A/C compressor.
1 Loosen the bolt.
2 Disconnect and position aside the compressor manifold and tube assembly.
6. Remove the bolts and the A/C compressor.
^ Discard the O-ring seals.
INSTALLATION
1. To install, reverse the removal procedure.
^ If a new A/C compressor is to be installed, the A/C compressor clutch field coil, the A/C compressor pulley, and the A/C clutch plate must be transferred from the old unit.
^ If filtering of the refrigerant system is not to be carried out, lubricate the refrigerant system with the correct amount of clean PAG oil.
^ Install new O-ring seals lubricated in clean PAG oil.
2. If filtering of the refrigerant system is not to be carried out, evacuate, leak test, and charge the refrigerant system.