Chevrolet 10 1971 Series Chassis Service Manual page 58

HEATER AND AIR CONDITIONING 1A-40
Expansion Valve—Install the expansion valve and
connect the inlet and outlet lines using new "O"
rings coated with clean refrigeration oil. Install the
expansion valve clamp and the capillary bulb clamps,
making sure that the bulb has good contact with the
core outlet line. Install the core outlet line cover,
making sure that the foam rubber strip is correctly
installed.
Evaporator Core—Add 3 oz. of clean refrigeration
oil to the new core and connect the inlet and outlet
lines using new "O" rings coated with clean refriger­
ation oil. Install the upper case half to the core and
install the case to core screws.
outlet line and expansion valve clamps.
expansion valve capillary bulb clamps making sure
that the bulb makes good contact with the core outlet
line. Install the core outlet line cover, making sure
that the foam rubber seal is positioned correctly.
2. Reverse "Removal" Steps 3-9, using new "O" ring
seals coated with clean refrigeration oil, when con­
necting refrigerant lines.
3. Evacuate and charge system.
4. Connect battery ground cable.
5. Performance test the system.
Install the core
Install the
CHEVROLET TRUCK SERVICE MANUAL