Compressor HVAC: Service and Repair
COMPRESSOR1mREMOVAL
1. Run engine at idle with A/C ON for 10 minutes.
2. Disconnect negative cable at battery.
3. Recover refrigerant from refrigeration system using recovery and recycling equipment.
NOTE: The amount of compressor at removed must be measured and the same amount must be poured when installing the compressor.
4. Disconnect thermal protector lead wire.
5. Disconnect suction and discharge hoses from compressor.
NOTE: Cap open fitting immediately to keep moisture out of system.
6. For G16 engine:
Remove compressor drive belt by loosening compressor mounting bolts.
For J20 engine:
Remove generator belt.
For H25 engine:
Remove compressor drive belt by loosening tension pulley bolt.
7. Remove compressor with clutch assy from its mount.
8. Drain oil from compressor, and measure its amount.
INSTALLATION
1. Pour new compressor oil. The amount must be the same with the amount measured in REMOVAL.
NOTE: Compressor assembly supplied from factory is filled up with the following amount of oil.
Amount of oil in compressor: 120 cu.cm (120 cc, 7.5 cu.in)
2. For G16 engine:
Install compressor temporarily to bracket, then install compressor drive belt.
For J20 and H25 engine:
Install compressor to its bracket.
Tighten bolts (a) first, then (b).
Tightening Torque:
(a), (b): 23 N.m (2.3 kg.m, 17.0 lb.ft)
3. Connect suction and discharge hoses to compressor.
4. For G16 engine:
Tension compressor drive belt by tightening compressor mounting bolts.
Tighten bolt (a) first, then (b).
Tightening Torque
(a): 23 N.m (2.3 kg.m, 17.0 lb.ft)
For J20 engine:
Install generator belt.
For H25 engine:
Install compressor drive belt.
5. Connect thermal protector lead wire.
6. Evacuate and charge the system.
CAUTION: Be sure to use HFC-134a (R-134a) compressor oil.