Engine Idle Compensator; Compressor - Chevrolet LIGHT DUTY TRUCK (SERIES 10-35) Service Manual

1B-38 AIR CONDITIO NING
USING J-5420
ADAPTER
ACCUMULATOR
M ULTI-CAN DISPENSING UNIT
USING J6271-01 SINGLE CAN
Fig. 1 B-31--Charging the CCOT A /C System w ith Disposable Can or R efrigerant Drum.
accumulator.
2. A vehicle is involved in a collision and no physical
perforation to the accumulator is found. An open refrigerant
line should be capped or have a plastic bag tightly taped
around it.

ENGINE IDLE COMPENSATOR

This additional aid to prevent stalling during prolonged
hot weather periods is included with all air conditioned
vehicles. The idle compensator is a thermostatically
controlled air bleed which supplies additional air to the idle
mixture. On V-8 engines, with factory installed air
conditioning systems, the compensator is located within the
carburetor and is accessible when the engine air cleaner is
L IG H T T R U C K SER V IC E M AN UAL
OPEN DURING
EVACUATION
AND CHARGING
V A LV E
CAUTION: Make sure outlet valve on opener is closed
(clockwise) before installing opener to R-12 container.
14 OZ. CANS
CLOSED D U R IN G /
EVACUATION
OPEN AND INVERTED
DURING CHARGING
J6272-02 MULTI CAN
OPENER-VALVE
J5725-04
MANIFOLD
GAUGE SET T H ,S H|GH PRESSURE VALVE IS
/ OPEN AND VACUUM PUMP LINE
/ DISCONNECTED ONLY DURING
/ EVACUATION
THIS HIGH PRESSURE
V ALVE IS CLOSED AND
LINE DISCONNECTED
HIGH DURING DISCHARGING
SIDE
AND CHARGING
V A LV E
VACUUM PUMP
USING J23390
OPENER-VALVE
FOR 12 LB. CAN
X
removed.

COMPRESSOR

C-K M odels
Removal (Fig. 1B-33)
1. Purge the refrigerant from the system.
2. Remove connector attaching bolt and connector.
Cap or plug open connections at once.
3. Disconnect electrical lead to clutch actuating coil.
4. Loosen brace and pivot bolts and detach belt.
5. Remove the nuts and bolts attaching the compressor
brackets to the mounting bracket. Remove the compressor.
6. Before beginning any compressor disassembly, drain
30 LB. DRUM HAS
OWN OPENER-VALVE
DECREASE OF WEIGHT
ON SCALE INDICATES
CHARGE ADDED