Chevrolet 70 1969 Series, Shop Manual

Page: 894 / 913

STEERING 9-18
Press Ra m
R e m o v e r a n d
Installer
T op C o v e r
__T_ r
“ M echanical Steering G ear Overhaul'
C A L S T E E R I N G ” section.
in “ M E C H A N I-
F ig u re 1 7 — R e m o v in g or In s ta llin g T op C o v e r N e e d le B e a r in g
6. Using a screwdriver and ham m er, remove w orm seal
(37) and back-up washer (36) from top covbr (32).
Discard seal.
7. Rem oval of worm thrust bearing cup (29) from hous­
ing, needle bearing (41) from top cover (32), needle
bearing (50) or bushing from side cover (52), and
needle bearings (47) or bushings from housing should
be deferred until inspection of parts indicate necessity
for removal.
INSPECTION OF PARTS
1. A ccom plish all inspection procedures outlined under
“ Inspection of P arts” in “ M echanical Steering Gear
O verhaul” in “ M E C H A N IC A L S T E E R I N G ” sec­
tion.
2. Check condition of all brass inverted-flare connectors
in hose connection parts. Replace if not in first-class
condition. Replace connectors as described in the fol­
lowing:
a. T o remove a connector, tap threads in center hole
using a 5/16 inch - 18 tap. T hread a bolt, with nut
and flat washer attached, into tapped hole so
washer rides against the face of the port boss and
nut rides against the washer (fig. 15).
b. Hold bolt from rotating while turning nut off bolt.
This will force the washer against the port boss
face and will back out bolt, draw ing the connector
from top cover housing (fig. 15).
c. Discard connector. Clean housing out thoroughly to
remove any tapping chips.
d. Drive new connector against housing seat, using driv­
er tool (J-6217) (fig. 16). Be careful not to dam age
either the connector or housing seat.
STEERING GEAR REPAIR
Pitman Shaft Bearing Replacement (Refer to
Figure 2 in "MECHANICAL STEERING" Section)
Pitman Shaft Bearing Replacement (Referto
Figure 2 in "MECHANICAL STEERING" Section)
Accomplish all procedures previously described in
M echanical Steering G ear O verhaul in M E C H A N IC A L
S T E E R IN G section.
Worm Thrust Bearing Cup Replacement
Accom plish steps 1, 2, and 3, as previously outlined in
“ M echanical Steering G ear O verhaul” group in M E C H A ­
N IC A L S T E E R IN G section.
Lash Adjuster Replacement (Referto Figure 12
in "MECHANICAL STEERING" Section)
Accomplish all procedures described under “ Lash A d ­
juster R eplacem ent” in “ M echanical Steering G ear O v­
erhaul” in “ M E C H A N IC A L S T E E R I N G ” section.
Lash Adjuster Adjustment and Replacement
A ccomplish steps 1 and 2 described under “ Lash A d ­
juster A djustm ent and R eplacem ent" in “ M echanical
Steering G ear O verhaul” in “ M E C H A N IC A L S T E E R ­
IN G ” section.
Top Cover Bearing Replacement
1. Press needle bearing from top cover, using suitable
bearing rem over tool (fig. 17).
2. Install new bearing, using installer tool (fig. 17). Press
against stam ped identification side of bearing.
ASSEM BLING STEERING GEAR
One of the most im portant phases of assembling the hy-
A c c o m p l i s h all p r o c e d u r e s p re v io u sly d e scrib e d
F ig u re 1 8 — In s ta llin g W o rm S e a l
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK SH O P M A N U A L