Chevrolet 1988 Light Duty Truck Repair Manual page 125

1. REMOVE AND INSTALL PITMAN SHAFT
SEALS
REMOVE
1 Clean exposed end
of pitm an shaft and
end of housing after
rem oving pitm an arm
2. Remove retaining _
ring w ith snap
ring pliers J-4245. W J
3. S ta rt engine and TO
^
turn wheels fully
to the left to
/
force seals and
/
washer out.
/
4 Turn o ff engine:
/
5. Inspect housing
/
and shaft
/
PITMAN S H A F T------- ^ ^ - - - L O C K WASHER
Inspect seal surface
for roughness and p ittin g
___
j ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ r m e r l y
I
Remove Pitman Arm |nstaM Sea,
2. REMOVE AND INSTALL PITMAN SHAFT
AND SIDE COVER
REMOVE
1 If pitm an shaft and 1. If removed, install
side cover are to be
separated, remove
preload adjuster nut.
2. Rotate stub shaft to 2
center gear, then
remove parts as shown
/-
SIDE COVER BOLTS
c&\ j f
j
Torque to 60 Newton Metres
^
| to)
(40 Ft Lbs.)
j
' " j ? } 1
1
|
1
|
Separate pitm an
shaft and gasket
IsPJ
seal from side
^
cover if required
Figure 25 — Removing and Installing the Pitman Shaft
INSTALL
1 . Install parts as shown,
j -
HOUSING ASSEMBLY
_Inspect fo r burrs
^
PITMAN SHAFT
SEAL
—
^
^ S E A L BACK-UP
WASHER
---
RETAINING RING
DUST SEAL
4 ~ ~
BOOT
----- PITMAN ARM
NUT-Torque
k
to 250 Newton Metres
LbS,>
(18° R'
Installer
j
INSTALL
gasket seal by
bending tabs around
cover edges.
Install parts
as shown,
PRELOAD
ADJUSTER NUT
^ G A S K E T SEAL
PITMAN SHAFT
ASSEMBLY
.
PITMAN SHAFT
BOOT
POWER STEERING 3B3-11
3. REMOVE AND INSTALL HOUSING END
PLUG
REMOVE
1. Remove parts
1
as shown
R etaining ring
access hole
(Use P unch)--------------------------- *
#
/ / /
/ / *-----
/ /
/
^-HOUSING END PLUG
^-RETAINING RING
4. REMOVE AND INSTALL RACK PISTON
REMOVE
1. Remove parts as shown. 1
When installing rack,
care should be taken not
to cut teflon seal, rack
piston seal compressor
J-7576 or J-8947 may be used
to compress seal
L
------------------------------- Inserl ball retainer
/
/
/
/
'
— RACK PISTON PLUG
Must be removed
before removing
rack
INSTALL
Install parts as shown
Open end of retaining
ring to be approx 25 mm
(1 inch) from access hole
HOUSING ASSEMBLY
HOUSING END PLUG
0 RING SEAL
INSTALL
Install parts as shown
J-21552 Hold tool tightly
against worm w hile
tu rning stub shaft
counter-clockw ise The
rack-piston will be forced
onto the tool. Remove the
rackipiston and ball
retainer from the gear
housing together.
F-05863