Cadillac 60 Series 1963 Shop Manual page 436

HEATING AND AIR CONDITIONING
13-55
48. Expansion Valve—Front Removal
and Installation (Fig. 13-14)
a. Removal
1. Purge system as described in Note 19.
2. Raise front end of car and place jack stands
under lower suspension arms.
3. Turn front wheels to right.
4. Remove right front fender rear dust shield.
5. Remove insulation from power element bulb
and remove bulb clamp and bulb.
6. Disconnect external equalizer line from suc-
tion throttling valve.
7. Disconnect high pressure and low pressure
liquid lines from expansion valve.
8. Remove clamp screw securing expansion
valve to brace on front of evaporator case and
remove valve. Remove clamp from valve.
9. Remove and discard O-rings at a l l
connections.
b. Installation
1. Install clamp on expansion valve and secure
clamp and valve to brace on evaporator case with
sheet metal screw. Be careful not to damage
capillary tube.
2. Connect high pressure and low pressure
liquid lines to expansion valve. Use new O- rings.
3. Connect external equalizer line to suction
throttling valve using a new O-ring.
4. Attach power element bulb to evaporator low
pressure line and secure with clamp.
CAUTION: Use new clamp if necessary to
obtain tight fit of bulb to tubing.
5. Carefully replace insulation around power
element bulb. Insulation must be packed tightly
around bulb.
6. Evacuate system as described in Note 21.
7. Charge system with refrigerant as described
in Note 23, and leak test all connections.
8. Check operation of system.
9. Install right front fender rear dust shield.
10. Straighten wheels and lower car.
49. Expansion Valve—Rear Removal
and Installation (75 Series)
a. Removal
1. Remove rear evaporator assembly as de-
scribed in Note 59a.
2. Remove core from rear evaporator assembly
as described in Note 60a.
3. Remove power element bulb from evaporator
outlet pipe.
4. Disconnect external equalizer line from
evaporator outlet pipe, and remove tape securing
equalizer line to evaporator inlet pipe.
5. Disconnect high pressure and low pressure
liquid lines from expansion valve and cap lines.
6. Remove and d i s c a r d O-rings at all
connections.
b. Installation
NOTE: When installing expansion valve,
care must be taken to avoid damaging the ex-
ternal equalizer and power element lines.
1. Using new O-rings, connect high pressure
and low pressure liquid lines to expansion valve.
2. Connect external equalizer line to evaporator
outlet pipe using new O-ring. Tape line to evapo-
rator inlet pipe.
3. Attach power element bulb to evaporator
outlet pipe.
4. Install core in rear evaporator assembly as
described in Note 60b.
5. Install rear evaporator assembly as de-
scribed in Note 59b.
50. Blower Motor Removal and
Installation (60 and 62 Series)
a. Removal
1. Remove bolt securing transmission oil filler
pipe clamp to exhaust manifold and pivot pipe to
dustshield.
2. Disconnect electrical l e a d from blower
motor.
3. Disconnect motor ground wire.
4. Disconnect air hose from blower motor.
5. Remove five screws retaining motor as-
sembly to blower housing and remove motor and
fan assembly.