Chevrolet 10 Series 1967, Service Manual

Page: 53 / 605

HEATER AND AIR CONDITIONING 1A-25
3. Mount the upper condenser mounting brackets
(loosely) to the grille header bar.
4. Mount the condenser frame (firmly) to the lower
condenser mounting brackets.
5. Tighten the upper condenser brackets to the con­
denser frame and grille header bar.
6
. Uncap the refrigerant lines and condenser pipes
and connect the lines to the condenser using new
"O" rings wetted with refrigerant oil.
7. Hold the top of the fan shroud rearward and lower
the radiator into place. Be certain that the rubber
pads are in place in the lower radiator mounts and
that the header tank flange seats squarely in the
pads.
8
. Mount the two upper radiator mounts observing the
rubber pad location as in the previous step. Attach
the fan shroud to the rear of the mounts.
9. Connect the coolant hoses from the engine to the
radiator inlet and outlet. Clamp securely.
10. Check that the radiator drain plug (or valve) is
installed (or shut off).
11. Refill the cooling system.
12. Evacuate and recharge the refrigeration system.
If a new condenser was installed, add one fluid ounce
of refrigeration oil to the system before recharging.
Check system performance and leak test.
RECEIVER-DEHYDRATOR
The receiver-dehydrator should be replaced if it has
been damaged through an accident or if it leaks or be­
comes restricted or clogged. Do not attempt to repair
the receiver-dehydrator.
The receiver-dehydrator is merely a moisture collect­
ing device and a refrigerant storage area and is the least
likely component of the system to cause a malfunction.
If at any time when examining the compressor oil,
moisture is found or there is an indication of moisture
at the expansion valve needle, the receiver-dehydrator
should be replaced as follows (fig. 35):
N O T E :
If the receiver- dehydrator is to be re­
used, cap the inlet and outlet connections imme­
diately. When installing a receiver-dehydrator,
do not uncap the connections until the last possi­
ble moment.
Removal
1. Purge the system.
2. Remove the inlet and outlet connections from the
receiver- dehydrator.
3. Remove the receiver-dehydrator mounting bolts and
carefully remove it.
4. Cap the system if the receiver-dehydrator will not
be replaced immediately. Cap the receiver if it
will be reused.
Installation
1. Place the receiver-dehydrator in position and re­
place attaching bolts. Do not uncap the unit until
immediately before connecting lines.
2. Uncap any previously capped connections and con­
nect the fittings using new "O" ring seals.
3. Evacuate and recharge the system. If a new
receiver-dehydrator was installed, add one fluid
ounce refrigerant oil to the system.
CHEVROLET TRUCK SERVICE MANUAL