GMC 1989 Light Duty Truck Repair Manual page 126

3B3-12 POWER STEERING
REMOVE AND INSTALL ADJUSTER PLUG
ASSEMBLY
REMOVE
1. L o o s e n lo c k nut.
Use p u n c h ag ain st
ed g e of slots.
2. R em o v e adjuster
p lug u sin g sp a n n e r
w re n ch J-7624.
A D JU S T E R P L U G ------1
DISASSEMBLE AND ASSEMBLE ADJUSTER
PLUG ASSEMBLY
DISASSEMBLE
D isa sse m b le p arts
as show n.
R em o v e b ea rin g retainer.
D rive bearin g
and sea ls
from adjuster.
Bearing
remover
(Tool Ai
A D J U S T E R P L U G
R em o v e b ea rin g and sea ls
INSTALL
1. Install p arts
as show n.
L O C K NUT
NOTICE:
W hen installing
ad juster p lug care should
be taken not to cut seals.
ASSEMBLE
1 < : A s s e m b le p arts ^
as show n. (P^
/ / / / ^ R E T A IN IN G RING
/ / S T U B S H A F T
D U S T S E A L
L _ S T U B S H A F T S E A L
I — N E E D L E B E A R IN G
L A D JU S T E R P L U G
- "0 " RING S E A L
U P P E R B E A R IN G R A C E (LA R G E )
U P P E R T H R U S T B E A R IN G
U P P E R B E A R IN G R A C E (S M A L L )
T H R U S T B E A R IN G S P A C E R
B E A R IN G R ETAIN ER
— R ET AIN ER
S cre w d riv e r
P ry b ea rin g retainer
at raised area
Driver J-7079-2
Installer J-8524-1.
A k n use for seal
in sta lla tio n after
bea rin g is in p lace
B e a rin g with
id e n tifica tio n
tow ard tool.
A D JU S T E R P L U G
Install b earin g and seals.
Figure 2 5 — R em oving and Installing th e A djuster Plug A ssem bly
6. REMOVE AND INSTALL BEARING, WORM,
AND VALVE ASSEMBLY
REMOVE
1. G ra sp stu b sh aft and
1. Install p a rts as
rem ove valve and w orm
assem bly as a unit.
Sep arate the valve from the worm.
Note how the pin in the worm
fits the slot in the valve.------ ""
T H R U S T B E A R IN G
AN D R A C E S -
tk
NOTICE:
W hen rea ssem b lin
gear m ake su re an g le of thrust
races are as show n.
DISASSEMBLE AND ASSEMBLE VALVE
DISASSEMBLE
1. D isa sse m b le p arts 1. A sse m b le p arts
as show n.
VALVE B O D Y "0 " RING
VALV E B O D Y
V ALVE S P O O L
S T U B S H A F T 7 \
S P O O L TO B O D Y
Shaft cap
A L o o se n shaft cap
B. R em o ve and in sta ll stub shaft
P ull cap o ut approx. 6 m m fVV)
Tap ligh tly on
w o o d b lo c k
C. R em o ve and install spoo l
R otate w h ile rem ovin g or
in sta llin g —
L u b rica te sp o o l and body
w ith p ow er ste erin g fluid.
INSTALL
show n.
V A LV E A S S E M B L Y
W O R M A S S E M B L Y
ASSEMBLE
as show n.
^ V A L V E B O D Y
RING (teflon)
O ' RING
P in on shaft and h o le in
sp o o l (D isen ga g e to rem ove)
N otch m ust fully en g ag e
pin and ca p m ust seat
ag a in st shoulder.
F-06802