A/C Compressor

A/C COMPRESSOR REMOVAL / INSTALLATION

CAUTION:
- When installing a new A/C 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 the flushing of the air condition system prior to installing a new air conditioning compressor.
- If A/C flushing equipment is not available, carry out the filtering of the air conditioning system after a new air conditioning compressor has been installed. See A/C REFRIGERANT SYSTEM FILTERING AFTER A/C COMPRESSOR REPLACEMENT.
- Install a new evaporator core orifice as directed by the A/C flushing or filtering procedure. See EVAPORATOR CORE ORIFICE REMOVAL / INSTALLATION.
- Replace the receiver/drier. See A/C RECEIVER / DRIER REMOVAL / INSTALLATION.

NOTE: Replacement of the 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 the of the refrigerant system has not been performed, recover the refrigerant. See A/C REFRIGERANT SYSTEM TESTS.




2. Reposition the air intake duct.
1. Loosen the clamp.
2. Disconnect the crankcase ventilation tube.
3. Reposition the air intake duct.

3. Remove the accessory drive belt from the A/C compressor pulley. See DRIVE BELT REMOVAL / INSTALLATION.




4. Disconnect the electrical connector.




5. Remove the clamp nut on the compressor manifold and tube assembly.




6. Loosen the bolt and disconnect the compressor manifold and tube assembly from the A/C compressor.




7. Remove the bolts and the A/C compressor.
- Discard the O-ring seals.

8. To install, reverse the removal procedure.
- If a new A/C compressor is to be installed, the A/C compressor clutch field coil and the A/C clutch plate must be transferred from the old unit. See A/C COMPRESSOR MAGNETIC CLUTCH REMOVAL / INSTALLATION.
- If filtering the refrigerant system is not to be performed,lubricate the refrigerant system with the correct amount of clean refrigerant oil. See A/C REFRIGERANT OIL ADDITION.
- Evacuate, leak test, and charge the refrigerant system. See A/C REFRIGERANT SYSTEM TESTS.
- Install new O-ring seals lubricated in clean refrigerant oil.

9. If filtering the refrigerant system is not to be performed, evacuate, leak test, and charge the refrigerant system. See A/C REFRIGERANT SYSTEM TESTS.