Cadillac 60 Series 1963 Shop Manual page 191

i-26
BRAKES
DIAGNOSIS CHART (CONT'D.)
CONDITION
Brake moan during stop.
Brakes slow or fail to release.
CAUSE
Drum vibration.
Dirty compensating port.
Bent or dented vacuum cylinder.
Restricted air passage in power
piston.
Broken vacuum piston return
spring.
Faulty hydraulic check valves.
Air valve sticking.
Tight pedal linkage.
CORRECTION
Install proper type drum-to-
wheel clip kit.
Clean.
Replace.
Remove or replace.
Replace.
Replace.
Clean or replace.
Repair.
SPECIFICATIONS
All Series
Item Unless Otherwise Noted
Braking Area (total in square inches)
60 and 62 series cars 245.2
75 series and Commercial Chassis 260.0
Braking Ratio (inside diameter)
Front - 60, 62, and 75 series cars 59.0%
Rear - 60, 62 and 75 series cars 41.0%
Front - Commercial Chassis 52,8%
Rear - Commercial Chassis 47.2%
Drums (inside diameter)
Front and Rear 11.995"-12.005"
Run-out of Inside Diameter (maximum)
Front and Rear . .007"
Clearance Between Secondary Lining and Drums
Minimum 010"
Maximum 030"
Remachined diameter (maximum) 12.060"
Primary Lining (length, width, thickness)
Front and Rear - 60 and 62 series cars 11.52 x 2.50 x .254
Front and Rear - 75 series and Commercial Chassis 12.98 x 2.50 x .274
Secondary Lining (length, width, thickness)
Front and Rear - 60 and 62 series cars 12.98 x 2.50 x .254
Front and Rear - 75 series and Commercial Chassis 12.98 x 2.50 x .274
Lining To Shoe Attachment Method Rivets
Wheel Cylinder Bore
Front 1-3/16"
Rear - 60, 62 and 75. series 1"
Rear - Commercial Chassis 1-1/8"