EasyManua.ls Logo

GMC C Series 1993 User Manual

GMC C Series 1993
264 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image

Table of Contents

Question and Answer IconNeed help?

Do you have a question about the GMC C Series 1993 and is the answer not in the manual?

GMC C Series 1993 Specifications

General IconGeneral
BrandGMC
ModelC Series 1993
CategoryTrucks
LanguageEnglish

Summary

MEDIUM DUTY TRUCK UNIT REPAIR MANUAL

CAUTION

FOREWORD

1993 MEDIUM DUTY TRUCK UNIT REPAIR MANUAL

SECTION OA GENERAL INFORMATION

Special Tool Ordering Information

Information on ordering special service tools for various applications.

Service Parts Identification Label

Details on the label providing vehicle identification and production options.

Vehicle Identification Number

Explanation of the VIN, its location, and what it identifies.

Vehicle Certification Label

SECTION 1D2 HR6-HE AIR CONDITIONING COMPRESSOR

General Description

Overview of the HR6-HE compressor and clutch assembly design.

Minor Repair to the Compressor

Procedures for minor repairs that can be done without discharging the system.

Major Repair to the Compressor

Procedures for major repairs requiring refrigerant recovery and system recharging.

SECTION 1D6 SD-510 HD AIR CONDITIONING COMPRESSOR

General Description

Overview of the Sanden SD-510 HD compressor, its drive system, and identification.

Minor Repair to the Compressor

Procedures for minor repairs to the SD-510 HD compressor.

Major Repair to the Compressor

Procedures for major repairs, including shaft seal replacement.

SECTION 3B1A POWER STEERING GEAR UNIT REPAIR

Medium-Duty Truck Steering Gear Assembly

Overview of the complete steering gear assembly for medium-duty trucks.

Gear Disassembly

Step-by-step instructions for taking apart the steering gear unit.

Gear Reassembly

Step-by-step instructions for putting the steering gear unit back together.

SECTION 3B1B STEERING PUMP UNIT REPAIR

Power Steering Pump Assembly

Overview of the complete power steering pump assembly.

Drive Shaft, Drive Shaft Seal, Ball Bearing Assembly

Procedures for servicing the drive shaft, seal, and ball bearing.

Control Valve

Instructions for removing, installing, and servicing the control valve.

SECTION 3B2 POWER STEERING COMPONENTS (MIDLAND)

General Description

Overview of the Midland BB Series power steering pump.

Disassembly

General procedures for disassembling the Midland power steering pump.

Assembly

General procedures for assembling the Midland power steering pump.

SECTION 3B3 POWER STEERING COMPONENTS (TRW ROSS)

General Description

Overview of the TRW Ross integral hydraulic power steering gear.

Disassembly

Step-by-step process for disassembling the TRW Ross steering gear.

Assembly

Step-by-step process for assembling the TRW Ross steering gear.

SECTION 3B4 POWER STEERING COMPONENTS (LuK LF 93)

General Description

Overview of the LuK LF 93 series power steering pump.

Disassembly

Procedures for disassembling the LuK LF 93 power steering pump.

Assembly

Procedures for assembling the LuK LF 93 power steering pump.

SECTION 4B2 REAR AXLE CONTROLS

Two-Speed Axle Electric Shift Unit

Description of the electric shift unit for two-speed axles.

Two-Speed Axle Air Shift Unit

Description of the air shift unit for two-speed axles.

SECTION 5A MASTER CYLINDER

General Description

Description of the Bendix tandem master cylinder and its systems.

Unit Repair

Procedures for repairing the master cylinder unit.

Bench Bleeding

Procedure for bleeding the master cylinder on a workbench before installation.

SECTION 5D2 HYDRAULIC BOOSTER

General Description

Description of the Delco Moraine Hy-Power brake booster.

Booster Assembly

Procedures for removing and disassembling the hydraulic booster assembly.

Electro-Hydraulic Pump

Information about the electro-hydraulic pump used as a backup.

SECTION 5H AIR BRAKE VALVES

Air Dryers

Information on air dryers, including the CR Brakemaster.

Bendix AD-9

Procedures for removing, installing, and testing the Bendix AD-9 air brake valve.

DUAL APPLICATION VALVE

Procedures for the Bendix E-6 dual application valve.

BENDIX LQ-4 FRONT AXLE LIMITING (RATIO) VALVE

BENDIX SC-2 SINGLE CHECK VALVE

BENDIX DC-4 DOUBLE CHECK VALVE

MOISTURE EJECTOR VALVE BENDIX DV-2

PRESSURE PROTECTION VALVE BENDIX PR-2

QUICK RELEASE VALVE BENDIX QR-N

RELAY VALVES BENDIX R-14

BENDIX PROPORTIONING RELAY VALVE BP-R1

SAFETY VALVE BENDIX ST-3

SPRING BRAKE CONTROL VALVE BENDIX SR-1

TRAILER BRAKE HAND CONTROL VALVES BENDIX TC-2

TWO-WAY CONTROL VALVE BENDIX TW-1

SECTION 5I AIR FOUNDATION BRAKES

Automatic Slack Adjuster ROCKWELL

Procedures for the Rockwell automatic slack adjuster.

Service Brake Chambers ANCHORLOK (Standard)

Procedures for Anchorlok standard service brake chambers.

Spring Brake Chambers ANCHORLOK (GOLD SEAL TYPE)

Procedures for Anchorlok Gold Seal spring brake chambers.

MANUAL SLACK ADJUSTER MIDLAND

SERVICE BRAKE CHAMBERS ANCHORLOK (Standard)

SPRING BRAKE CHAMBERS ANCHORLOK (GOLD SEAL TYPE)

SECTION 5J AIR COMPRESSOR AND GOVERNOR

Bendix Tu-Flo 550 Air Compressor Disassembly

Steps for disassembling the Bendix Tu-Flo 550 air compressor.

Bendix Tu-Flo 550 Cleaning, Inspection, and Repair

Procedures for cleaning, inspecting, and repairing the Tu-Flo 550 compressor.

Bendix BX-2150 Air Compressor Disassembly

Steps for disassembling the Bendix BX-2150 air compressor.

Bendix BX-2150 Cleaning, Inspection, and Repair

Procedures for cleaning, inspecting, and repairing the BX-2150 compressor.

Governor

Procedures related to the governor unit.

SECTION 6A2 V8 ENGINES, GASOLINE

General Description

General description of the V8 engines, displacements, and basic components.

Disassembly of the Engine

Initial steps and tools required for engine disassembly.

Cleaning

Methods and precautions for cleaning engine components.

Cylinder Head Removal

Steps for removing the cylinder heads from the engine block.

Piston and Connecting Rod Removal

Procedures for removing pistons and connecting rods from the engine.

Crankshaft Removal

Steps for removing the crankshaft from the engine block.

Cleaning, Inspection, and Repair

Procedures for cleaning, inspecting, and repairing engine components like the block.

Camshaft Bearings

Inspection and replacement procedures for camshaft bearings.

Timing Chain and Camshaft Sprocket Removal

Steps for removing the timing chain and camshaft sprockets.

Piston and Connecting Rod Installation

Procedures for installing pistons and connecting rods into the cylinder bores.

CYLINDER HEAD INSTALLATION

Steps for installing the cylinder heads onto the engine block.

VALVE TRAIN COMPONENT INSTALLATION

Procedures for installing valve train components like lifters and rocker arms.

SECTION 6C1 MODEL 295 TBI UNIT

General Description

Description of the fuel control system and TBI unit components.

THROTTLE BODY DISASSEMBLY

Procedures for disassembling the throttle body assembly.

FUEL METER BODY

Procedures for removing and disassembling the fuel meter body.

PRESSURE REGULATOR

Procedures for removing, installing, and inspecting the pressure regulator.

GOVERNOR THROTTLE DRIVE ASSEMBLY

Procedures for removing, installing, and inspecting the governor throttle drive assembly.

SECTION 6D1 21-SI 200 GENERATOR

General Description

General description of the Delco Remy 21-SI 200 generator.

Generator Output Test

Procedure for testing the generator's output.

Disassembly

Steps for disassembling the 21-SI 200 generator.

Inspection and Repair

Procedures for inspecting and repairing generator components.

Electrical Tests

Electrical tests for rotor, stator, rectifier bridge, and regulator.

SECTION 6D2 CS-144 GENERATOR

General Description

Description of the Delco Remy CS-144 generator.

Operating Principles

Explanation of how the CS-144 generator operates and its voltage regulation.

Generator Output Test

Procedure for testing the generator's output.

Disassembly

Steps for disassembling the CS-144 generator.

SECTION 6D3 SD STARTER MOTORS

General Description

General description of Delco Remy SD-260 and SD-300 starter motors.

Starter Motor Tests

Tests to perform on starter motors before disassembly.

Disassembly of the SD-300 STARTER MOTOR

Steps for disassembling the SD-300 starter motor.

Disassembly of the SD-260 STARTER MOTOR

Steps for disassembling the SD-260 starter motor.

REPAIR AND TESTING

Procedures for inspecting, testing, and repairing starter motor components.

SECTION 6D4 37-MT STARTER MOTORS

General Description

Description of the Delco Remy 37-MT starter motors.

ADJUSTABLE DRIVE HOUSING

Instructions for adjusting the drive housing.

DIAGNOSIS OF THE STARTER MOTOR

Diagnostic procedures for starter motor issues.

THERMOSTAT CHECK (OVERCRANK PROTECTION)

How to check the thermostat for overcrank protection.

DISASSEMBLY

General steps for disassembling 37-MT starter motors.

SECTION 6D5 DISTRIBUTORS

DELCO REMY DISTRIBUTORS

General information about Delco Remy distributors.

IGNITION CONTROL MODULE

Description and function of the ignition control module.

POLE PIECE AND COIL ASSEMBLY

Description of the pole piece and coil assembly.

DISASSEMBLY

Steps for disassembling the distributor.

INSPECTION AND ELECTRICAL TESTS

Procedures for inspecting distributor components and performing electrical tests.

ASSEMBLY

Steps for reassembling the distributor.

Related product manuals