Steering Wheels And Columns; Function Locking Columns - Pontiac TRANS AM 1977 Service Manual

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STEERING WHEELS AND COLUMNS
3
B4- 1
SECTION 3 B 4
STEERING WHEELS AND COLUMNS
CAUTION: All front suspension fasteners are an important
attaching part in that it could affmt the performance of vital parts and
systems, and/or could result in major repair expense. They must be
replaced with one of the same part number or with an equivalent part i f
replacement becomes necessary. Do not use a replacement part o f lesser
quality or substitute design. Torque values must be used as specified
during reassemb/y to assure proper retention of this part.
CONTENTS OF THIS SECTION
..................................................................................................
General Description
Function Locking Columns
..................................................................................
Steering Column WIth Dimmer Switch
..............................................................
Key Release Column
............................................................................................
Mechanical Neutral Start
.....................................................................................
Service Procedures
....................................................................................................
Steering Column
...................................................................................................
Tilt-Away Column and Key Release
...................................................................
In-Car Procedures
.............................................................................................
Tilt-Away Column With Dimmer Switch
.......................................................
Out-of-Car Procedures
......................................................................................
Regular Column and Key Release
......................................................................
In-Car Procedures
.............................................................................................
Regular Column With Dimmer Switch
...........................................................
Intermediate Shaft and/or Stone Shield
.............................................................
Intermediate Shaft and Coupling
........................................................................
Ignition Lock Assembly
.......................................................................................
......................................................................................................
Steering Wheel
Checking Steering Column for Damage
..............................................................
Torque Specifications
................................................................................................
GENERAL DESCRIPTION
FUNCTION LOCKING COLUMNS
The function locking energy absorbing steering column
includes three important features in addition to the steering
function:
1. The column is energy absorbing, designed to compress
in a front-end collision to minimize the possibility of injury
to the driver of the car.
2. The ignition switch and lock are mounted
conveniently on the column.
3. With the column mounted lock, the ignition, steering
and gearshifting operation can be locked to inhibit theft of
the automobile.
The function locking energy absorbing column may be
easily disassembled and reassembled. The serviceman should
be aware that it is important that only the specified screws,
bolts and nuts be used as designated and that they are
tightened to their specified torque. This precaution will insure
the energy absorbing action of the assembly. Over-length
bolts should not be used, as they may prevent a portion of
the assembly from compressing under impact. Equally as
important is correct torque of bolts and nuts. Care should be
taken to assure that the bolts or nuts securing the column
mounting bracket to the instrument panel are torqued to the
proper specification in order that the bracket will break away
under impact.
When the function locking energy absorbing column
assembly is installed in a car, it is no more susceptible to
damage through usage than an ordinary column; however,
when the column is removed, special care must be taken in
handling this assembly. Only the specified wheel puller
should be used. When the column is removed from the car,
such actions as a sharp blow on the end of the steering shaft

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Firebird 1977

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