K 3500 Truck 4WD V8-6.5L DSL Turbo VIN S (1999)
Expansion Block/Orifice Tube: Service and Repair
Expansion (Orifice) Tube Replacement - Auxiliary (C69)
REMOVAL PROCEDURE
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging See: Refrigerant/Service and Repair
2. Disconnect the evaporator tube from the evaporator.
3. Remove the O-ring seal.
4. Disconnect the evaporator tube from the condenser.
5. Remove the O-ring seal.
6. Disconnect the evaporator tube from the auxiliary evaporator hose.
7. Remove the O-ring seal.
8. Remove the evaporator tube.
INSTALLATION PROCEDURE
1. Install the evaporator tube.
2. Coat the new O-ring seal with 525 viscosity refrigerant oil.
3. Install the new O-ring seal.
NOTE: Refer to Fastener Notice in Cautions and Notices.
4. Connect the evaporator tube to the auxiliary evaporator hose.
Tighten
Tighten the evaporator tube to 24 N.m (18 lb ft).
5. Coat the new O-ring seal with 525 viscosity refrigerant oil.
6. Install the new O-ring seal.
7. Connect the evaporator tube to the condenser.
