Chevrolet Light Duty Truck 1973 Service Manual page 102

1A-76 HEATER A N D AIR C O N D IT IO N IN G
Fig. 92--Condenser (Motor Home Chassis Unit)
2. Purge the system of refrigerant.
3. Disconnect the condenser inlet and outlet lines and
cap or plug all open connections at once.
4. Remove the condenser to radiator support screws
and remove the condenser.
5. To install a new condenser, reverse Steps l -4 above.
Add one fluid ounce of clean refrigeration oil to a
new condenser.
NOTE: Use new "O " rings, coated with clean
refrigeration oil, when connecting all refrig­
erant lines.
6. Evacuate, charge and check the system.
RECEIVER-DEHYDRATOR
Replacement (Fig. 93)
1. Disconnect the battery ground cable.
2. Purge the system of refrigerant.
3. Disconnect the inlet and outlet lines at the receiver-
dehydrator and cap or plug the open lines at once.
4. Remove the receiver-dehydrator bracket attaching
screws and remove the bracket and receiver-
dehydrator.
5. To install a new receiver-dehydrator, reverse Steps
1-4 above. Add one fluid ounce of clean
refrigeration oil to a new receiver-dehydrator.
NOTE: Use new "O " rings, coated with clean
refrigeration oil, when connecting all refrig­
erant lines.
Fig. 93--Receiver-Dehydrator (Motor Home Chassis
6. Evacuate, charge and check the system.
SIGHT GLASS REPLACEMENT
Refer to "Sight Glass Replacement" in the Floor
Mounted System Section of this manual.
BLOWER-EVAPORATOR ASSEMBLY (Fig. 94)
Removal
1. Disconnect battery ground cable.
Unit)
Units)
LIGHT DUTY TRUCK SERVICE MANUAL