Chevrolet Light Duty Truck 1973 Service Manual page 267

The following caution applies to one or more steps in the assembly
procedure of components in this portion of the manual as indicated at
appropriate locations by the terminology "See Caution on page l of this
section.".
CAUTION:
PART IN THAT IT COU LD AFFECT THE PE RF O R M A N C E OF
VITAL C O M P O N E N T S A N D SYSTEMS, AND/OR C OU LD RESULT
IN M A J O R REPAIR EXPENSE. IT M U S T BE REPLACED WITH
ON E OF THE S A M E PART N U M B E R OR WITH A N EQUIVALENT
PART IF REP LA C E M E N T B E C O M E S NECESSA R Y . D O N O T USE A
R E P L A C E M E N T PART OF LESSER QUALITY OR SUBSTITUTE
DESIGN. TORQUE VALUES M U S T BE USED AS SPECIFIED
DURING REASSE MB LY TO ASSURE PROPER RETENTION OF
THIS PART.
Standard Brakes................................................................................. 5-1
Power Brakes........................................................................................ 5-60
Special Tools........................................................................................ 5-70
General Description............................................................ 5-2
Master Cylinder.................................................................. 5-2
Combination Valve........................................................... 5-2
Disc Brakes Front.............................................................. 5-2
Drum Brakes R ear............................................................ 5-2
Theory of Operation.......................................................... 5-4
Hydraulic System............................................................... 5-4
Pressure and Force............................................................ 5-5
Brake System Components............................................. 5-5
Operation of Brake Mechanism.................................. 5-10
Front Disc Brakes........................................................... 5-11
Rear Drum Brakes......................................................... 5-12
Maintenance and Adjustment.......................................... 5-15
Brake Inspection................................................................. 5-15
Hydraulic Brake Fluid..................................................... 5-16
Bleeding Hydraulic System............................................. 5-16
Pressure Bleeding............................................................. 5-16
Manual Bleeding............................................................. 5-17
Hydraulic Brake Lines and Tubing............................ 5-18
Drum Brake Adjustment................................................. 5-21
Brake Pedal Free Travel Adjustment........................ 5-22
Stoplamp Switch Adjustment........................................ 5-22
Brake Travel Warning Switch...................................... 5-22
SECTION 5
BRAKES
THIS FASTENER IS A N IMPORTANT ATTACHING
CONTENTS OF THIS SECTION
STANDARD BRAKES
INDEX
Component Replacement and R ep air......................... ..5-24
Diagnosis...................................................................................5-48
Parking Brake Adjustment...............................................5-22
Parking Brake (Propeller Shaft) Adjustm ent......... ..5-23
Shoes and Linings—Rear Drum Brakes.................... ..5-24
Anchor Pin Replacement..................................................5-27
Wheel Cylinder.....................................................................5-27
Brake Drum Refinishing...................................................5-28
Shoe and Linings—Front Disc Brakes....................... ..5-29
Caliper Overhaul..................................................................5-31
Disc Refinishing...................................................................5-34
Master Cylinder....................................................................5-36
Master Cylinder Overhaul................................................5-36
Master Cylinder (with Frame Mounted Booster)... 5-38
Bench Bleeding Master Cylinder...................................5-39
Brake Combination Valve.................................................5-40
Brake Travel Warning Switch...................................... ..5-41
Brake Pedal-Service Brake..............................................5-42
Parking Brake Pedal........................................................ ..5-42
Parking Brake Cables...................................................... ..5-43
Parking Brake-Propeller S haft.................................... ..5-43
Rear Brakes—R.P.O. H-22................................................5-46
Inspection................................................................................5-48
Preliminary Checks..............................................................5-49
Road Testing....................................................................... ..5-49
BRAKES 5-1
LIGHT DUTY TRUCK SERVICE MANUAL