Cadillac 60 Series 1963 Shop Manual page 402

HEATING AND AIR CONDITIONING
13-21
18 Black with
White
Stripe i
16 Light Blue
18 Orange
with Black
Stripe
Dark Green
14 Orange with
Black Stripe
©
14 Yellow Feed
18 Yellow
14 Dark Green
16 Light Blue
18 Orange with
Black Stripe
14 Orange with
Black Stripe 14 Brown
•Blower Inlet Assembly
To Compressor"
Underhood Wiring Harness
Compressor
Switch
„ . , • Instrument Panel Wiring Harness
Master Switch
Blower Control Heater-Air Conditioner Assembly
)-«e—Heater-Air Conditioner Control Panel
Fig. 13-20 Heater and Air Conditoner Wiring Harness Diagram
SERVICE INFORMATION
13. Differences in Air Conditioner
Equipped Cars
Cadillac cars equipped with an Air Conditioner
incorporate special engineering features to com-
pensate for the extra weight, power requirements,
and electrical loads demanded by the Air Con-
ditioner system. The following features should
be kept in mind when working on Air Conditioned
cars:
a. Fan Assembly
A five-blade, aluminum fan is used to provide
more air flow, and a thermostatically controlled
limited-slip clutch is used to reduce fan noise.
b. Fan Pulley
The fan pulley has three grooves and is smaller
in diameter to drive the fan faster.
c. Fan Shroud
A fan shroud is utilized to assist in drawing
air through the entire radiator core when engine
is at idle.
d. Fan Belts
The power steering pump and generator drive
belts are shorter to fit the smaller fan pulley.
e. Radiator Assembly
A special radiator is used with additional cop-
per tubing for better cooling.
f. Crankshaft Pulley
A three-groove pulley is used to accommodate
the three drive belts.
g. Fuel Filter and Vapor Return Line
A vapor return line is connected from the fuel
filter to the fuel tank to reduce vapor lock.
h. Carburetor
An idle speed-up control is used to boost engine
rpm when transmission is in "Neutral" or "Park"
and the Air Conditioner is turned "On". This im-
proves engine cooling and Air Conditioner per-
formance when car is standing.