Accumulator HVAC: Service and Repair

ACCUMULATOR REPLACEMENT

TOOLS REQUIRED
J 39400-A Halogen Leak Detector

REMOVAL PROCEDURE




1. Recover the refrigerant..
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 new O-ring seals.

IMPORTANT: If replacing the accumulator, add the refrigerant oil to the condenser.

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
Tighten the bolt to 10 N.m (89 lb in).




4. Install the accumulator (3).
5. Install the accumulator bracket nut (4).

Tighten
Tighten the nut to 9 N.m (80 lb in).

6. Install the nut (2) to the evaporator fitting.

Tighten
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
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
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
Tighten the nut to 16 N.m (12 lb ft).

13. Evacuate and recharge the system..
14. Leak test the fittings of the component using the J 39400-A.