1991 Chevrolet C3500 Pickup Brake Service (ONLINE REPAIR MANUALS)

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We have info for following modifications of 1991 Chevrolet C3500 Pickup

  • 1991 Chevrolet C3500 Pickup 6.2 V8 DIESEL, CID:379, Fuel Injection, Aspiration:379, Engine VIN:, Desg:J
  • 1991 Chevrolet C3500 Pickup 5.7 V8 GAS, CID:350, Fuel Injection, Aspiration:350, Engine VIN:, Desg:K
  • 1991 Chevrolet C3500 Pickup 7.4 V8 GAS, CID:454, Fuel Injection, Aspiration:454, Engine VIN:, Desg:N

BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet C3500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet C3500 Pickup cars and light trucks from 1990+.

POWER BRAKE UNITS, GENERAL MOTORS -> Delco-Moraine Brake Boosters -> SINGLE DIAPHRAGM TYPE -> Assemble -> BOOSTER SERVICE -> DESCRIPTION -> Disassemble -> OPERATION
Vehicle: 1991 Chevrolet C3500 Pickup 5.7 V8 GAS

DESCRIPTION

These power brake units, Figs. and , are a combination vacuum-hydraulic brake booster of the vacuum suspended type which use engine intake manifold vacuum and atmospheric pressure for its power.

These units consist of a vacuum power section and an hydraulic master cylinder section. The vacuum power section contains a power piston with rolling diaphragm mechanism and power piston return spring.

The control valve is made up of an air valve and floating vacuum control valve assembly. The reaction mechanism consists of an hydraulic piston, reaction plate and a series...

CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet C3500 Pickup BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet C3500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet C3500 Pickup cars and light trucks from 1990+.

POWER BRAKE UNITS, GENERAL MOTORS -> Delco-Moraine Brake Boosters -> POWER BRAKE UNIT, Replace -> 1990-91 C & K SERIES -> ASTRO & SAFARI VAN -> CABALLERO & EL CAMINO -> FULL SIZE EXCEPT 1990-91 C & K SERIES -> LUMINA APV, SILHOUTTE & TRANS SPORT -> S/T 10 & 15 & BRAVADA
Vehicle: 1991 Chevrolet C3500 Pickup 7.4 V8 GAS

CABALLERO & EL CAMINO

  • Remove vacuum hose from check valve and master cylinder retaining nuts.
  • Pull master cylinder forward so it clears mounting studs and move to one side. Support cylinder to avoid stress on hydraulic lines.
  • Remove power unit to dash nuts.
  • Remove brake pedal pushrod retainer and disconnect pushrod from pin.
  • Remove power brake unit from vehicle.
  • Reverse procedure to install.

ASTRO & SAFARI VAN

  • Disconnect master cylinder from power brake unit.
  • Disconnect power brake unit pushrod from brake pedal.
  • Remove power brake unit retaining nuts and the power brake unit.
  • Rev...

CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet C3500 Pickup BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet C3500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet C3500 Pickup cars and light trucks from 1990+.

POWER BRAKE UNITS, GENERAL MOTORS -> Tracker Brake Booster -> BOOSTER SERVICE -> ASSEMBLE -> DISASSEMBLE
Vehicle: 1991 Chevrolet C3500 Pickup 5.7 V8 GAS

DISASSEMBLE

  • Remove pushrod clevis and locknut.
  • Install brake booster to brake mounting fixture, Fig. . Ensure booster vacuum pipe is clear of mounting fixture base and the booster mounting nuts are not over tightened.
  • Turn fixture handle until No. 1 and No. 2 body tabs are aligned, Fig. .
  • Remove booster from fixture, then separate body No. 1 and No. 2. This step must be performed with care because there is spring pressure between body No. 1 and No. 2.
  • Remove booster piston spring, piston rod, boot, air cleaner and air cleaner separator from body No. 2.
  • Remove valve stopper key cush...

CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet C3500 Pickup BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet C3500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet C3500 Pickup cars and light trucks from 1990+.

DRUM BRAKES, GENERAL MOTORS -> General Information -> SERVICE PRECAUTIONS
Vehicle: 1991 Chevrolet C3500 Pickup 5.7 V8 GAS

When working on or around brake assemblies, care must be taken to prevent breathing asbestos dust, as many manufacturers incorporate asbestos fibers in the production of brake linings. During routine service operations, the amount of asbestos dust from brake lining wear is at a low level due to a chemical breakdown during use, and a few precautions will minimize exposure. Do not sand or grind brake linings unless suitable local exhaust ventilation equipment is used to prevent e...

CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet C3500 Pickup BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet C3500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet C3500 Pickup cars and light trucks from 1990+.

DRUM BRAKES, GENERAL MOTORS -> General Information -> GENERAL INSPECTION -> ADJUSTER MECHANISM -> BACKING PLATE -> BRAKE DRUMS -> BRAKE LININGS & SPRINGS -> PARKING BRAKE CABLE
Vehicle: 1991 Chevrolet C3500 Pickup 5.7 V8 GAS

BRAKE DRUMS

Any time the brake drums are removed for brake service, the braking surface diameter should be checked with a suitable brake drum micrometer at several points to determine if they are within the safe oversize limit stamped on the brake drum outer surface. If the braking surface diameter exceeds specifications, the drum must be replaced. If the braking surface diameter is within specifications, drums should be cleaned and inspected for cracks, scores, deep grooves, taper, out of round and heat spotting. If drums are cracked or heat spotted, they must be replaced. Gr...

CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet C3500 Pickup BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet C3500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet C3500 Pickup cars and light trucks from 1990+.

DISC BRAKES, GENERAL MOTORS -> Delco-Moraine Single Piston Caliper -> DESCRIPTION
Vehicle: 1991 Chevrolet C3500 Pickup 6.2 V8 DIESEL

The caliper assembly, Fig. , slides on its mounting surfaces. Upon brake application, hydraulic pressure against the piston forces the inboard pad against the inboar...

CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet C3500 Pickup BRAKE SERVICE PROCEDURES

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