Accumulator HVAC: Service and Repair

ACCUMULATOR REPLACEMENT

TOOLS REQUIRED
J 39400-A Halogen Leak Detector

REMOVAL PROCEDURE




1. Recover the refrigerant from the system. Refer to Refrigerant Recovery and Recharging.
2. Unclip the Positive battery cable from the top of the accumulator cover.
3. Remove the evaporator hose assembly (1) from the snap clamp (2) on the accumulator cover.




4. Unsnap the accumulator cover (1) and remove the cover from the accumulator (2).
5. Remove the evaporator hose assembly from the accumulator.
6. Remove the suction hose from the accumulator.




7. Disconnect the accumulator retainer.
8. Remove the accumulator.
9. Drain the oil from the accumulator.

INSTALLATION PROCEDURE




1. Install the accumulator.

IMPORTANT: If replacing the accumulator, add oil to accumulator. Refer to Refrigerant System Capacities.

2. Install the evaporator hose assembly to the accumulator.

IMPORTANT: Inspect the sealing washers for damage. Any sealing washers that show signs of damage need to be replaced. Sealing washers do not require lubrication.

3. Install the evaporator hose assembly retaining nut.

NOTE: Refer to Fastener Notice in Service Precautions.

Tighten
Tighten the nut to 20 N.m (15 lb ft).

4. Install the suction hose to the accumulator.
5. Install the suction hose retaining nut.

Tighten
Tighten the nut to 20 N.m (15 lb ft).




6. Install the accumulator cap (1) to the accumulator (2). Ensure that all three snap fasteners on the accumulator cap are engaged.




7. Install the evaporator hose assembly (1) into the snap clamp (2).
8. Recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging.
9. Clip the Positive battery cable into the clip on the top of the accumulator cover.
10. Leak test the fittings of the repaired or reinstalled component using J 39400.