STEERING COLUMN ASSEMBLY S-SERIES
DESCRIPTION
The steering column assemblies used on S-Series
Regular Cab and Flat Back Cowl (FBC) and Bus chassis
are constructed with a few minor differences; however,
the overall design and function are similar.
The
steering
wheel,
containing
the
horn
switch
mechanism, is connected to the upper steering column
shaft. On conventional cab models, the upper steering
column shaft passes through the steering column
housing assembly and connects with the lower steering
column shaft at a double-yoke assembly with the aid of a
spider type universal joint. The steering column housing
is fastened to the dash panel via two support bracket
assemblies, of which the bracket closest to the steering
column incorporates the tilt-column mechanism on
models equipped with an adjustable steering column.
On all S-Series chassis, the lower steering column shaft
is joined to the steering gear by either another double
yoke U-joint and end yoke pinch bolt assembly or a shell
coupling assembly.
MAINTENANCE
STEERING COLUMN SHAFT BOLTS
The steering column end yoke pinch bolt assembly, or
the column shaft mounting and shell coupling clamp nuts
should be checked for tightness annually or every 80 000
kilometers (50,000 miles), whichever comes first. All
bolts
and
nuts
should
be
tightened
to
torque
recommended
in
SPECIFICATIONS.
Do
not
overtighten.
Bolts affected are:
Item 22, Figures 2
REMOVAL AND INSTALLATION
STEERING WHEEL
Procedures for steering wheel removal and installation
are common to all S-Series models.
Removal
1.
Position front wheels in a straight ahead position.
2.
Remove negative battery terminal.
3.
Pry up horn button cap evenly, disconnect horn
wire, and remove the horn button.
4.
Remove the retainer ring.
5.
Remove the slip ring retainer screws.
6.
Remove the steering wheel mounting nut.
7.
Remove steering wheel using steering wheel
puller SE-1821 (Figure 1).
Figure 1 - Removing Steering Wheel
CTS-4150Y - Page 2
