Chevrolet 70 1969 Series, Shop Manual

Page: 461 / 913

STEERING SYSTEM 9A-10
Figure 12— Steering Wheel Removal (Typical)
sired position. Install thru-bolt through adjustment
slot and tighten securely.
T IL T C O L U M N Q U IC K R E L E A S E
Some vehicles are equipped with a quick re­
lease mechanism to facilitate repositioning- the
steering column. To reposition the steering wheel,
turn the quick release knob counterclockwise and
move wheel to desired position, then turn knob
clockwise until steering column is secure.
The quick release mechanism may be replaced
as follows: (Refer to fig. 13.)
1. Depress lock plate and remove nut from
locking rod.
2. Pull quick release knob and locking rod
from housing. N O T E : Two detent sleeves and a
spring will remain in housing.
3. Position quick release knob and locking
rod through housing, making sure rod passes
through detent sleeves and spring.
4. Depress lock plate and install nut on lock­
ing rod. Nut should be loose enough to allow column
to tilt, but tight enough to hold column secure after
turning release knob approximately 90°.
N O T E : To adjust nut, depress locking plate
allowing nut to turn. After adjusting nut, allow plate
to return to its normal position.
C A U T IO N: D O N O T A T T E M P T T O
REPOSITION T H E S T E E R IN G W H E E L
W H I L E V E H IC L E IS M O V IN G .
STEERING COLUMN AND SHAFT
(CONVENTIONAL CAB MODELS)
R E M O V A L (Fig. 14)
1. Remove steering wheel as described under
"Steering Wheel Replacement” previously.
2. Mark clamp yoke or coupling and steering
gear worm shaft to insure installation in same
relative position (fig. 15).
3. Remove bolt attaching clamp yoke or coup­
ling on lower shaft to steering gear worm shaft.
4. If used, remove screws and lock washers
which attach trailer brake hand control valve to
steering column. Remove attaching clamp.
5. Remove screws which attach steering col­
umn seal retainer and seal to cab floor.
6. Remove bolts which attach steering column
to supports and braces, then pull housing off upper
shaft assembly and remove from vehicle.
7. Lift clamp yoke or coupling off steering
gear stub shaft, then twist and turn upper and lower
shaft as required to remove from vehicle.
D ISA SSEM B LY (Fig. 15)
1. Remove screw attaching directional signal
control lever to control assembly and remove
lever.
2. Remove three screws which attach direc­
tional signal control assembly to mast jacket
(fig. 18).
3. Remove steering column from upper shaft
assembly. If worn or damaged, pry bearing as­
sembly from steering column (fig. 17).
4. Remove spring seat and spring from lower
end of upper shaft; then remove stop bolt, nut,
lock washer, and "Stop" clamp.
5. Remove two snap rings, two tube yoke
bushings, and two cork washers which attach steer­
ing column upper shaft yoke to lower shaft yoke.
Discard cork washers.
Figure 13— Tilt Column Quick Release Mechanism
CHEVROLET SERIES 70 -80 HEAVY DUTY TRUCK SH O P M A N U A L