Tools Required

J 39400-A Halogen Leak Detector

1. Tilt the cab. Refer to Cab Tilting in General Information.
2. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging .



3. Remove the receiver dehydrator electrical connector from the receiver dehydrator pressure switch.



4. Remove the evaporator hose.
5. Remove the O-ring seal from the condenser and discard.
6. Remove the 2 clamp bracket screws.
7. Disconnect the condenser tube from the receiver dehydrator.
8. Remove the O-ring seal and discard.
9. Remove the receiver dehydrator clamp bolt.
10. Remove the receiver dehydrator from the vehicle.

1. Install the receiver dehydrator into the receiver dehydrator clamp.
2. Install the clamp bolt loosely.
3. Coat the new O-ring seal. Use 525 viscosity refrigerant oil.
4. Install the new O-ring seal.




Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

5. Connect the condenser tube to the receiver dehydrator.

Tighten
Tighten the fitting to 15 N·m (11 lb ft).

6. Install the 2 clamp bracket screws.

Tighten
Tighten the clamp bracket screws to 18 N·m (13 lb ft).

Tighten
Tighten the receiver dehydrator clamp bolt to 25 N·m (18 lb ft).

7. Coat the new O-ring seal. Use 525 viscosity refrigerant oil.
8. Install the new O-ring seal.
9. Install the evaporator hose fitting to the dehydrator.

Tighten
Tighten the fitting to 15 N·m (11 lb ft).

10. Install the receiver dehydrator electrical connector to the receiver dehydrator pressure switch.
11. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
12. Leak test the fitting(s) of the repaired or reinstalled component using the J 39400-A .
13. Lower the cab. Refer to Cab Tilting in General Information.