Accumulator HVAC: Service and Repair
ACCUMULATOR REPLACEMENTTOOLS REQUIRED
J 39400-A Halogen Leak Detector
REMOVAL PROCEDURE
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
2. Remove the evaporator tube nut from the evaporator.
3. Remove the evaporator tube from the evaporator.
4. Remove the nut from the evaporator tube (3).
5. Disconnect the electrical connector from the A/C low pressure switch.
6. Remove the compressor hose nut from the accumulator.
7. Remove the compressor hose from the accumulator.
8. Remove the nut (2) from the evaporator fitting.
9. Remove the accumulator bracket nut (4) from the retaining stud.
10. Remove the accumulator (3).
11. Remove the retaining bracket bolt (5).
12. Remove the retaining bracket (6) from the accumulator.
13. Remove and discard the O-ring seals.
INSTALLATION PROCEDURE
1. Install the O-ring seals.
IMPORTANT: If replacing the accumulator, add the refrigerant oil to the condenser. Refer to Refrigerant System Capacities for system capacity information.
2. Install the retaining bracket (6) to the accumulator.
3. Install the retaining bracket bolt (5).
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten the bolt to 10 N.m (89 lb in).
4. Install the accumulator (3).
5. Install the accumulator bracket nut (4).
Tighten the nut to 9 N.m (80 lb in).
6. Install the nut (2) to the evaporator fitting.
Tighten the nut to 16 N.m (12 lb ft).
7. Install the compressor hose to the accumulator.
8. Install the compressor hose nut to the accumulator.
Tighten the nut to 16 N.m (12 lb ft).
9. Connect the electrical connector to the A/C low pressure switch.
10. Install the nut to the evaporator tube (3).
Tighten the nut to 25 N.m (18 lb ft).
11. Install the evaporator tube to the evaporator.
12. Install the evaporator tube nut to the evaporator.
Tighten the nut to 16 N.m (12 lb ft).
13. Evacuate and recharge the system. Refer to Refrigerant Recovery and Recharging.
14. Leak test the fittings of the component using the J 39400-A.