GMC 1982 Light Duty Truck Service Manual page 283

1. REMOVE AND INSTALL PITMAN SHAFT
SEALS IN CAR
REM OVE
1. Clean exposed end
of pitman shaft and
end of housing after
removing pitman arm
2. Remove retaining
ring with snap
ring pliers J-4245.
3. Start engine and
turn wheels fully
to the left to
force seals and
washer out.
4. Turn off engine.
5. Inspect housing
and shaft.
PITMAN SHAFT
Inspect seal surface
for roughness and pitting
Remove Pitman Arm
REMOVE AND INSTALL PITMAN SHAFT
AND SIDE COVER
REM OVE
If pitman shaft and
side cover are to be
separated, remove
preload adjuster nut.
Rotate stub shaft to
center gear, then
remove parts as shown.
Separate pitman
shaft and gasket
seal from side
cover if required
INSTALL
1. Install parts as shown.
HOUSING ASSEMBLY
Inspect for burrs
SEAL (SINGLE LIP)
WASHER
SEAL (DOUBLE LIP)
WASHER
RETAINING RING
,-------P IT M A N A R M
LOCK WASHER
NUT-Torque
25 0 N ew ton Meters
(185 F t. Lbs.)
L
Install Seals
INSTALL
1. If removed, install
gasket seal by
bending tabs around
cover edges.
2. Install parts
as shown.
SIDE COVER BOLTS
Torque to 60 Newton Meters
(40 Ft. Lbs.)
PRELOAD
ADJUSTER NUT
SIDE COVER
GASKET SEAL
HOUSING ASSEMBLY
Fig. 3B 3-58-O verhaul 8 0 0 /8 0 8 G ear, C hart C
POWER STEERING SYSTEM 3B3-27
REMOVE AND INSTALL HOUSING END
PLUG
REM OVE
1. Remove parts 1. Install parts as shown.
as shown.
Retaining ring
access hole
(Use Punch)
HOUSING END PLUG
RETAINING RING
4. REMOVE AND INSTALL RACK PISTON
REM OVE
1 Remove parts as shown. 1. Install parts as shown.
When installing rack,
care should be taken not
to cut teflon seal, rack
piston seal compressor
J -7 5 7 6 or J -8 9 4 7 may be used
to compress seal.
RACK PISTON PLUG
Must be removed
before removing
rack
INSTALL
Open end of retaining
ring to be approx. 25 mm
(1 inch) from acce ss hole.
HOUSING ASSEMBLY
HOUSING END PLUG
O " RING SEAL
INSTALL
Insert ball retainer
J-2 1552. Hold tool tightly
against worm while
turning stub shaft
counter-clockwise. The
rack-piston will be forced
onto the tool. Remove the
rack-piston and ball
retainer from the gear
housing together.