GMC PD-4103 Maintenance Manual page 196

Sec. 16
Page 176
GM COACH MAINTENANCE MANUAL
STEERING GEAR
1 Steering Wheel
2 Insulator
3 Horn Button Retainer
4 Horn Button
5 Horn Button Contact Plate
6 Bronze Horn Button Spring
7 Wood Plug
8 Horn Connector Assembly
9 Horn Contact Assembly
10 Switch Operating Plate
11 Upper Shaft Bearing Assembly
12 Signal Switch Clamp Screw
13 Upper Shaft
14 Lower Shaft Bearing Assembly
15 U-Joint Lower Housing
16 U-Joint Upper Housing
17 Upper Jacket Tube
18 Signal Switch Housing
19 Signal Switch Lever
20 Bearing Spring Seat
21 Bearing Spring (Steel)
22 Operating Plate Stud
23 Woodruff Key
24 U-Joint Clamp Bolt
25 Bearing Assembly Retainer
Plate
26 U-Joint Bearing Assembly
27 U-Joint Journal
28 U-Joint Lower Yoke
29 U-Joint Upper Yoke
30 Woodruff Key
TP-6282
figure 6-Universal Joint Assembly and Steering Wheel Installation
5. Place lower jacket tube assembly over cam
and shaft assembly, using shims removed at dis-
assembly between housing upper cover and gear
housing. Install and tighten four bolts which at-
tach housing upper cover to gear housing. Use
new lock washers. Install lower shaft upper bear-
ing assembly in upper end of lower jacket tube,
pressing in until top of bearing is flush with top
of lower jacket tube.
6. Install universal joint assembly on lower
end of upper shaft, using Woodruff key and clamp
bolt. Insert Woodruff key in upper end of cam
and shaft assembly, position universal joint lower
yoke on shaft; then install clamp bolt and tighten
firmly.
7. Install upper shaft bearing assembly in up-
per jacket tube, pressing bearing into tube until
flange seats against end of tube.
8. Slide upper jacket tube and universal joint
upper housing over upper shaft. Position univer-
sal joint upper housing cover on lower housing,
install and tighten firmly four socket head screws.
9. Slide lever shaft into gear housing, being
careful not to damage bushings and oil seal.
10. Place new side cover gasket on gear
housing, position side cover on housing; then in-
stall and tighten attaching cap screws, using new
lock washers.
11. Fill gear housing with lubricant specified
in LUBRICATION (SEC. 13).
12. Temporarily install steering wheel and
make ''Cam Bearing Adjustment" and "Lever Shaft
Thrust Adjustment," as directed earlier.
STEERING GEAR INSTALLATION
1. Insert steering column upward through floor
of vehicle and raise housing into position on under-
structure. Install four mounting bolts, with heads
toward frame; then place new plain washers and
new lock washers on bolts and install nuts. Tighten
nuts securely.
2. Install rubber seal and closure plates
around steering column at floor. Attach plates to
floor with screws.