Tools Required

J 39400-A Halogen Leak Detector

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



3. Disconnect the A/C high pressure switch electrical connector (2).
4. Remove the A/C high pressure switch from the receiver dehydrator.

Notice: Refer to Fastener Notice in the Preface section.




1. Install the A/C high pressure switch to the receiver dehydrator.

Tighten
Tighten the switch to 6 N·m (53 lb in).

2. Connect the A/C high pressure switch electrical connector (2).
3. Evacuate and recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging .
4. Leak test the fitting of the component using the J 39400-A .
5. Lower the cab. Refer to Cab Tilting .