CRUISE MASTER SYSTEM CHECKS
Will not engage
Does not cruise at engage-
ment speed
System hunts or pulses
System does not disengage -
with brake pedal
System applies full throtUe
when engaged
Cannot adjust speed down-
ward with Engage Button
Does not engage or engages
lower than limits referred
to in "Driver Operation"
Cause
Brake Switch Circuit Open
Fuse blown
Defective Engage Switch
Vacuum leak in Servo and/or Brake
Switch and connecting lines.
Open in wiring harness
Defective Regulator
Orifice Tube misadjusted
Bead Chain loose.
Kinked or deteriorated hoses
Dirty Air Filter
Defective and/or improperly posi-
tioned Drive Cables and/or Casing
Assemblies
Defective Regulator
Brake and/or Vacuum Switch mis-
adjusted or defective
Hoses interchanged at Servo
Defective Regulator
Defective Engagement Switch or
Wiring
Internally Misadjusted Regulator
Correction
Check connections - adjust or replace switch. Refer to
Electrical Check Out.
Replace fuse - if it blows again, check for:
1.
Engage Switch stuck in the center of travel - Refer
to Electrical Check Out.
2.
Incorrect wiring - Refer to Electrical Check Out.
3.
Short to ground - Refer to Electrical Check Out.
Make necessary corrections.
Replace as needed - Refer to Electrical Check Out.
Vacuum test and repair or replace as needed. Refer to
Servo and Vacuum System Check Out.
Repair or replace as needed.
Replace Regulator.
Adjust as required.
Tighten Bead Chain.
Repair or replace.
Service as required.
Repair or replace as needed.
Replace Regulator.
Adjust or replace as required. Refer to Servo
and Vacuum System Check Out and Electrical Check
Out.
Correct as needed.
Replace Regulator.
Replace as needed. Refer to Electrical Check Out.
Replace Regulator
SPECIFICATIONS
HEATING
AND AIR
CONDITIONING
SECTION
1A
Compressor
Make Frigidaire
Type
. 6
Cylinder Axial
Displacement
Four-Season
12.6
Cu.
In.
Universal
and
Ail-Weather
.... .10.8 Cu. In.
Rotation Clockwise
Compressor Suction
and
Discharge
Connector Bolt Torque
.......
25 ft lbs.
Compressor Clutch Coil
Ohms
(at
80°F.).
4.18-4.38
Amps
(at
80°F.)
2.86 @ 12
Volts
Torques
Rear Head
to
SheU Stud
Nut 23 lb. ft
Shaft Mounting
Nut 15 lb. ft
Belt Tension.
See
Tune-Up Chart
System Capacities
Refrigerant
R-12
Four-Season
and
Comfortron
Systems.
............
3 lbs., 12 oz.
Universal Systems
Chevrolet, Chevelle,
and
Camaro.
... 3 lbs.
Chevy
n 2 lbs. 8 oz.
All-Weather System
2 lbs. 8 oz.
Compressor
Oil 525
Viscosity
All Systems
11 oz.
Fuses
Comfortron Systems
.
Four-Season Systems
.
Universal Systems
. .
All-Weather System.
.
Fuse
Block
25
amp.
25
amp.
25
amp.
25
amp.
In
Line
30
amp.
30
amp.
20
amp.
20
amp.
SECTION
3
WHEEL ALIGNMENT SPECIFICATIONS (Vehicle
dt
Curb Weight)
Caster*
Camber*
Steering Axis
Inclination
tToe-In (Total)
Wheel Bearing
Adjustment
Preload
End Movement
Chevrolet
Pos.
3/4° ± 1/2°
Pos.
1/4° ± 1/2°
7-1/2° ± 1/2°
@l/8"
to 1/4"
12 ft lbs.
zero
.001"
to .008"
Chevelle •
(SS and El Camino)
Neg. 1/2° ± 1/2°
(All others)
Neg. 1° ± 1/2°
Pos.
1/2° ± 1/2°
8-1/4° ± 1/2°
1/8" to 1/4"
12 ft lbs.
zero
.001"
to .008"
Chevy n
Pos.
1° ± 1/2°
Pos.
1/2° ± 1/2°
7° ± 1/2°
1/4" to 3/8"
12 ft lbs.
zero
.000"
to .004"
Corvette
Pos.
1° ± 1/2°
Pos.
3/4° ± 1/2°
7° ± 1/2°
3/16" to 5/16"
12 ft lbs.
zero
.001"
to .008"
Camaro
Pos.
1/2° £ 1/2°
Pos.
1/4° ±1/2°
8 3/4° ± 1/2°
1/8" to 1/4"
12 ft lbs.
zero
.001"
to .008"
•Must not vary more than 1/2° from side to side.
@Toe-In (Total) should be 5/16" to 7/16" after rebuild using new bushings and ball joints.
tAdjust Toe-in with steering gear on straight ahead location after camber and caster have been set Any change
in caster and camber settings will affect toe; always recheck and set toe to specifications.
LET CHASSIS SERVICE MANUAL
SPECIFICATIONS 26
LAMP USAGE (Cont'd.)
CANDLE
POWER
1
6
4
2
3
2
2
3
2
3
15
15
BULB
NUMBER
1445
212
67
1893
1816
194
1895
1816
257
1816
1003
93
Seat Separator-Compartment Lamp . . . . .
-Courtesy Lamp •
License Plate Lamp . .
Radio Dial Lamp
Chevrolet, Chevelle, Chevy n & Camaro
Corvette
Brake Alarm Lamp
. Chevrolet & Camaro . . .... . .
Chevelle & Chevy n . . . . .'. ;v . . . .
Corvette . . . . . . . .
Headlamp Mqtor Warning Lamp (Flashing) .
Clock Lamp (Corvette) .''> ....
Luggage Compartment Lamp. . ... . . . •
Underhood
FUSES AND CIRCUIT BREAKER
A circuit breaker in the light control switch protects
the headlamp circuit, thus eliminating one fuse. A
separate circuit breaker protects the power window,
seat and top circuits. On Corvettes the headlamp motor
circuit is also protected by a separate circuit breaker.
Where current load is too heavy, the circuit breaker
rapidly opens and closes, protecting the circuit until
the cause is found and eliminated.
louses located in the Fuse Panel under the instrument panel are:
Wiper (Chevrolet, Chevelle, and "F" Car) 3AF/AGC 20 Amp.
Back-up Lamp and Gauges. . . 3AG/AGC 10 Amp.
Heater - Air Conditioning 3AG/AGC 25 Amp.
Radio 3AG/AGC 10 Amp.
Radio - Wiper (Chevy II and Corvette) 3AG/AGC 20 Amp.
Instrument Lamps 3AG/AGC . 4 Amp.
Stop and Tail Lamps ........ t 3AG/AGC 20 Amp.
Clock, Lighter, Courtesy Lamps, and Hazard Warning 3AG/AGC 20 Amp.
In-Line Fuses:
Air Conditioning High Blower Speed Fuse located in wire running
from horn relay to A/C Relay
Comforton and Four Season SAE 30 Amp.
Universal & All Weather (Chevy H) SAE 20 Amp.
Fusible Links: ,
Pigtail lead at battery positive cable (except Corvette) 14 gage brown wire
Molded splice at Solenoid "Bat" terminal (Corvette only) 14 gage brown wire
Molded Splice Located at the horn relay 16 gage black wire
Molded splice in Voltage Regulator #3 terminal wire 20 gage orange wire
Molded splice in Ammeter circuit (Both sides of meter) 20 gage orange wire
CHEVROLET CHASSIS SERVICE MANUAL
