Receiver Dryer: Service and Repair

Receiver and Dehydrator Replacement

Special Tools

J 39400-A Halogen Leak Detector

Removal Procedure

1. Recover refrigerant. Refer to Refrigerant Recovery and Recharging Refrigerant Recovery and Recharging.
2. Remove the grille. Refer to Grille Replacement Service and Repair.

Warning

Do not remove hoses or lines before system is fully discharged. System may be under pressure and contact with R134a may cause personal injury.

3. Remove the condenser hose bolt from the receiver dehydrator.
4. Remove the condenser hose from the receiver dehydrator.
5. Remove the evaporator tube bolt from the receiver dehydrator.
6. Remove the evaporator tube from the receiver dehydrator.
7. Install caps on the condenser hose and the evaporator tube assembly to prevent moisture entry and oil spillage.
8. Remove the receiver dehydrator bracket bolts and the receiver dehydrator assembly.
9. Loosen the receiver dehydrator clamp bolt and remove receiver dehydrator.

Installation Procedure

1. If replacing the receiver dehydrator add the appropriate amount of PAG oil to the system. Refer to Refrigerant System Specifications Specifications for capacity information.
2. Install the receiver dehydrator bottle into the clamp but do not tighten.
3. Install new O-rings. Refer to Air Conditioning O-Ring Seal Replacement Air Conditioning O-Ring Seal Replacement.

Caution: Use only Polyalkylene Glycol Synthetic Refrigerant Oil (PAG) for internal circulation through the R-134a A/C system and only 525 viscosity mineral oil on fitting threads and O-rings. If lubricants other than those specified are used, compressor failure and/or fitting seizure may result.

Caution: Refer to Fastener Caution Fastener Caution.

4. Install the receiver dehydrator bracket bolts.
5. Tighten the receiver/dehydrator clamp bolt. Tighten the bolt to 5 Nm (44 lb in).
6. Remove the condenser hose to condenser cap and plug and install a new seal washer. Refer to Air Conditioning System Seal Replacement Air Conditioning System Seal Replacement.
7. Install the evaporator tube to the receiver dehydrator.
8. Install the evaporator tube bolt to the receiver dehydrator. Tighten the bolt to 20 Nm (15 lb ft).
9. Install the condenser hose to the receiver dehydrator.
10. Hand start the condenser hose bolt to the receiver dehydrator. Tighten the bolt to 20 Nm (15 lb ft).
11. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging Refrigerant Recovery and Recharging.
12. Using the J 39400-A leak test the fittings of the component.
13. Install the grille. Refer to Grille Replacement Service and Repair.