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POWER STEERING GEAR UNIT REPAIR 3B1A-1
SECTION 3B1A
POWER STEERING GEAR
UNIT REPAIR
NOTICE:
Repair the steering gear in a clean, dust-free location, using clean tools and equipment. Dirt or grit will damage
the machined surfaces and result in leaking or damage to the steering gear assembly. If broken components or foreign
materials are found while disassembling the gear, the hydraulic system should be disassembled, inspected, cleaned, and
flushed. In some instances, “power steering hydraulic fluid” will be specified to lubricate parts upon assembly. In these
cases, GM hydraulic fluid should be used. Do not use brake fluid, automatic transmission fluid, or other non-approved fluids.
NOTICE:
When fasteners are removed, always reinstall them at the same location from which they were removed. If
a fastener needs to be replaced, use the correct part number fastener for that application. If the correct part number fastener
is not available, a fastener o f equal size and strength (or stronger) may be used. Fasteners that are not reused, and those
requiring thread locking compound will be called out. The correct torque value must be used when installing fasteners
that require it. If the above conditions are not followed, parts or system damage could result.
CONTENTS
Medium-Duty Truck Steering Gear A ssem bly.....3B1A-2
Gear D isassem b ly...............................
3B1A-3
Adjuster Plug ............................ ....................... .3B 1A -6
Valve and Stub S h a ft...................... .......................... 3B1A -9
Pitman Shaft and Side C over.................................3B1 A -10
Primary Rack P isto n ................................................ 3B1 A -l 1
Steering Gear Connectors.......... ...................... .
3B1 A -12
Pitman Shaft Bearing and
Seal Replacement......................................... ............ 3B1 A - l 2
Gear R eassem b ly................ ...........:............. .3B1A-13
Gear Service A djustm ents.......................... ....... ...3B1 A - l6
Specifications......... .............................................. ....3B1A-1^
\
Fluid {Specification ......... ...... ................... ...... 3B1A-17
Adjustment Tightening Specifications .___...3B1A-17
Fastener Tightening Specifications___..........3B1A-17
Special Tools ............. ....................................... .3B1A-18
Summary of Contents for C Series 1993
Page 1: ......
Page 12: ...OA 6 GENERAL INFORMATION Figure 11 Allison Transmission I D Location ...
Page 44: ...3B1A 2 POWER STEERING GEAR UNIT REPAIR Figure 1 710 Power Steering Gear ...
Page 62: ......
Page 75: ...3B3 2 POWER STEERING COMPONENTS TRW ROSS ...
Page 121: ...5H 16 AIR BRAKE VALVES Figure 21 Bendix Proportioning Relay Valve Components ...
Page 147: ...5J 10 AIR COMPRESSOR AND GOVERNOR 286 F9051 Figure 18 Bendix BX 2150 Compressor Components i ...
Page 204: ...MODEL 295 TBI UNIT 6C1 3 F7973 Figure 3 Model 295 TBL Unit ...
Page 251: ...6D4 6 37 MT STARTER MOTORS V3022 Figure 8 37 MT Components ...