Cadillac 60 Series 1963 Shop Manual page 441

13-60
HEATING AND AIR CONDITIONING
3. Remove two bracket attaching bolts at bot-
tom of evaporator, and remove top retaining
bracket from evaporator.
4. Raise rear end of car, remove evaporator
drain plugs and disconnect high pressure liquid
line and low pressure vapor line at connections -
then lower car.
5. Disconnect fresh air intake and blower outlet
tubes from each side of evaporator.
6. Remove access plate from rear of evapo-
rator and disconnect vacuum hose from suction
throttling valve.
7
O
Tilt top of evaporator assembly back, dis-
connect electrical leads and bowden cables, and
remove evaporator.
b. Installation
1. Position evaporator assembly in forward end
of trunk compartment and connect electrical leads
and bowden cables.
2. Connect vacuum hose to suction throttling
valve.
3. Connect fresh air intake and blower outlet
tubes to each side of evaporator.
4. Raise rear end of car, install evaporator
drain plugs and connect high pressure liquid line
and low pressure vapor line. Lower car.
5. Install retaining bracket on top of evaporator
and install two bracket attaching bolts at bottom
of evaporator.
6. Evacuate system as described in Note 21.
7. Charge system with refrigerant as described
in Note 23, and leak test connections.
8. Replace access plate on rear of evaporator.
9. Replace shelf panel inside trunk compart-
ment.
10. Check operation of system.
60. Evaporator Core—Rear Removal
and Installation (75 Series)
a. Removal
1. Remove rear evaporator assembly as de-
scribed in Note 59a.
2. Remove six screws at rear, four screws on
top and four screws on bottom of evaporator case
and remove back cover.
NOTE: The screws at top and bottom are
covered with a sealer which must be removed
in order to gain access to the screws.
3. Remove six screws securing core to top of
evaporator case and remove core.
4. Remove suction throttling valve as described
in Note 45a.
5. Remove expansion valve as described in
Note 49a.
b. Installation
1. Add refrigeration oil as described in Note 25.
2. Install expansion valve as described in
Note 49b.
3. Install suction throttling valve as described
in Note 45b.
4. Position core in evaporator case and secure
with six screws.
5. Place back cover in position and secure with
fourteen screws. Apply sealer to screws at top
and bottom of evaporator case.
6. Install evaporator assembly as described
in Note 59b.
61. Dehydrator—Receiver Removal
and Installation
The sight glass is an integral part of the de-
hydrator-receiver. No service should be per-
formed on this assembly. To remove and install
the dehydrator-receiver assembly, proceed as
follows:
a. Removal
1. Purge system as described in Note 19.
2. Disconnect condenser pipe at inlet side of
sight glass.
3. Disconnect high pressure liquid line at outlet
side of sight glass.
4. Remove two bolts securing dehydrator to
support bracket and remove dehydrator assembly.
NOTE: Cap fittings if original dehydrator-
receiver is to be reinstalled.
b. Installation