Chevrolet 1980 Light Duty Truck Service Manual page 197

Fig. 3B2-6--Checking Torque at Steering Wheel
c. Check the torque at the steering wheel, taking the
highest reading as the wheel is turned through center
position. See Specifications for proper over-center preload.
d. If necessary, loosen locknut and readjust lash
adjuster screw to obtain proper torque. Tighten the locknut
to specifications and again check torque reading through
center of travel. If maximum specification is exceeded, turn
lash adjuster screw counterclockwise, then come up on
adjustment by turning the adjuster in a clockwise motion.
10. Reassemble the pitman arm to the pitman shaft,
lining up the marks made during disassembly. Torque the
pitman shaft nut to specifications.
If a clamp type pitman arm is used, spread the pitman
arm just enough, with a wedge, to slip the arm onto the
pitman shaft. Do not spread the clamp more than required
STEERING GEAR
Removal
1. Set the front wheels in straight ahead position by
driving vehicle a short distance on a flat surface.
2. Remove the flexible coupling to steering shaft flange
bolts (C-K models) or the lower universal joint pinch bolt
(P models). Mark the relationship of the universal yoke to
the wormshaft.
3. Mark the relationship of the pitman arm to the
pitman shaft. Remove the pitman shaft nut or pitman arm
pinch bolt and then remove the pitman arm from the pitman
shaft using Puller J-6632 (Fig. 3B2-9).
4. Remove the steering gear to frame bolts and remove
the gear assembly.
5. C-K Models - Remove the flexible coupling pinch
bolt and remove the coupling from the steering gear
wormshaft.
to slip over pitman shaft with hand pressure. Do not
hammer the pitman arm onto the pitman shaft. Be sure to
install the hardened steel washer before installing the nut.
the battery ground cable.
STEERING GEAR HIGH PO INT CENTERING
be checked by driving vehicle a short distance on a fla t
surface to determine steering wheel position at which
vehicle follows a straight path.
of mark on wormshaft designating steering gear high point.
This mark should be at the top side of the shaft at 12 o'clock
position and lined up with the mark in the coupling lower
clamp.
off high point when setting wheel in straight ahead position,
loosen adjusting sleeve clamps on both left and right hand
tie rods. Then turn both sleeves an equal number of turns
in the same direction to bring gear back on high point.
different directions will disturb the toe-in setting of the
wheels.
point when setting wheels in straight ahead position, loosen
adjusting sleeve clamps on the connecting rod. Then turn
sleeve to bring gear back on high point.
necessary).
fastening and torqueing clamps to proper specifications.
ON-VEHICLE SERVICE
M A N U A L STEERING GEAR
11. Install the horn button cap or shroud and connect
12. Lower the vehicle to the floor.
1. Set front wheels in straight ahead position. This can
2. With front wheels set straight ahead, check position
3. On C, G and P series, if the gear has been moved
Turning the sleeves an unequal number of turns or in
4. On K series, if the gear has been moved off high
5. Readjust toe-in as outlined in Section 3A (if
6. Be sure to properly orient sleeves and clamps when
3B2-5
LIG H T TR U CK SER V IC E M ANUAL