Accumulator HVAC: Service and Repair
ACCUMULATOR REPLACEMENTTOOLS REQUIRED
J 39400-A Halogen Leak Detector
REMOVAL PROCEDURE
1. Remove the air cleaner.
2. Recover the refrigerant from the system. Refer to Refrigerant Recovery and Recharging.
3. Remove the accumulator nut (1) from the evaporator.
4. Remove the compressor suction hose (7) from the accumulator.
5. Remove the O-ring seals.
6. Disconnect the electrical connectors.
7. Remove the pressure switch.
8. Remove the accumulator mounting bracket bolt.
9. Remove the accumulator mounting bracket.
10. Remove the accumulator.
11. Install sealing caps if you are not replacing the accumulator.
INSTALLATION PROCEDURE
1. Install the accumulator mounting bracket.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the accumulator mounting bracket bolt.
Tighten
Tighten the mounting bracket bolt to 4 N.m (35 lb in).
3. Install the pressure switch.
4. Connect the electrical connections.
5. Coat the O-ring seals with 525 viscosity refrigerant oil.
6. Install new O-ring seals.
7. Install the compressor suction hose (7) to the accumulator.
8. Install the accumulator nut (1) to the evaporator.
Tighten
Tighten the accumulator nut to the evaporator to 27 N.m (20 lb ft).
9. Evacuate and charge the system. Refer to Refrigerant Recovery and Recharging.
10. Leak test the fitting(s) of the repaired or reinstalled component using the J 39400-A.
11. Install the air cleaner.