GMC 1990 Light Truck Repair Manual page 125

4. REMOVE AND INSTALL ADJUSTER PLUG
ASSEMBLY
REMOVE
1. Loosen lock nut.
1. Install parts
Use punch against as shown.
ed ge of slots.
2. Rem ove adiuster
plug using spanner
w rench J -7 6 2 4
A D JU S T E R PLUG
5. DISASSEMBLE AND ASSEMBLE ADJUSTER
PLUG ASSEMBLY
DISASSEMBLE
1. D isassem ble parts 1. Assem ble parts
as shown. as shown
'— N EED LE BEARING
L A D JU ST E R PLUG
" 0
U PPER BEARING R A C E (LA RG E)
U P PER TH RUST BEARING
U PPER BEARIN G R ACE (SM ALL)
TH RU ST BEARING SP A C ER
BEAR IN G RETAINER
RETAINER
Screw driver
Pry bearing retainer
at raised area.
I * - A D JU ST E R PLUG
-A D JU S T E R PLUG
I__________________ I
I__________________ I
R em ove bearing and seals.
Figure 25— Removing and Installing the Adjuster Plug Assembly
INSTALL
LOCK NUT
NOTICE:
When installing
adjuster plug care should
be taken not to cut seals
ASSEMBLE
RETAINING RING
ST U B SH AFT
DUST S E A L
ST U B SH AFT S E A L
RING S E A L
Driver J-7 0 7 9 -2
Installer J - 8 5 2 4 - 1 .
C. R em ove and install spool
Al*-') use for seal
installation after
bearing is in place
■Bearing with
identification
toward tool.
Install bearing and seals.
POWER STEERING 3B3-11
. REMOVE AND INSTALL BEARING, WORM,
6
AND VALVE ASSEMBLY
REMOVE
1. Grasp stub shaft and 1. Install parts as
remove valve and worm
shown.
assem bly as a unit.
Separate the valve from the worm
Note how the pin in the
fits the slot in the valve.
T H RU ST BEARING
AND R A C E S
NOTICE:
When reassem bling
gear make sure angle of thrust
races are as shown
7. DISASSEMBLE AND ASSEMBLE VALVE
DISASSEMBLE
1. Disassem ble parts 1
as shown.
VALVE BODY 0 " RING
VALVE BODY
VALVE SPOOL
ST U B SH AFT
SPO O L TO BODY 0
-Sh aft cap
A. Loosen shaft cap B. Rem ove and install stub shaft.
Pull cap out approx. 6 mm(V«")
Tap lightly on
Pin on shaft and hole in
wood block
spool (D isengage to remove)
u
D. E n ga ge stub shaft
Rotate while removing or
installing —
Lubricate spool and body
with pow er steering fluid
INSTALL
VALVE A S SE M B L Y
WORM A S SE M B L Y
ASSEMBLE
Assem ble parts
as shown.
VALVE BODY
RING (teflon)
RING
Notch must fully e n g age
pin and cap must seat
against shoulder.
F6802