GMC chervolet camaro 1999 Service Manual page 167

1-76 HVAC System .. Manual
237069
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237069
HVAC
Compressor Pressure Relief Valve Install
(VS - Conventional Mount)
1. Clean the valve seat area on the rear head.
2. Lubricate the 0-ring of the new pressure relief
valve and the 0-ring assembly using new
525 viscosity refrigerant oil.
Notice: Refer to Fastener Notice in Cautions and
Notices.
3. Install the new pressure relief valve (2).
Tighten
Tighten the valve to 9 N-m (80 lb in).
4. Evacuate and recharge the system.
5. Perform a leak test. Refer to Compressor Leak
Testing (VS - Conventional Mount).
Compressor Pressure Relief Valve Install
(V7 - Direct Mount)
Tools Required
J
41790 Compressor Holding Fixture
1 . Clean the pressure relief valve seat area of the
rear head.
2. Lubricate the 0-ring of the new pressure relief
valve with clean 525 viscosity refrigerant oil.
Notice: Refer to Fastener Notice in Cautions and
Notices.
3. Install the new pressure relief valve into the
compressor.
Tighten
Tighten the compressor pressure relief valve to
9 N-m (80 lb in).
4. Remove the compressor from the
J
41790.
5. Install the compressor into the vehicle.
Compressor Control Switches Install
(VS - Conventional Mount) ,
Tools Required
J 5403 Snap Ring Pliers
1. Inspect the switch cavity and the 0-ring groove in
the rear head for dirt or foreign material.
Clean the cavity and groove as necessary.
2. Coat the new 0-ring using clean 525 viscosity
refrigerant oil.
3. Install the 0-ring into the groove in the switch
cavity.
4. Lubricate the switch housing using clean
525 viscosity refrigerant oil.
5. Carefully insert the switch (3 or 4) into the switch
cavity until the switch bottoms in the cavity.
6. Using the
J
5403, install the switch retaining ring
with the high point of the curved sides adjacent to
the switch housing.
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