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 TM 9-2320-285-24-2
3-28.
STEERING SYSTEM MAINTENANCE (CONT)
d. Power Steering Gear (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
REASSEMBLY (cont)
16
e
Adjusting screw
Install
Screw into tapped hole in
(cont)
(30)
housing until 7/8 inch of
thread is exposed
f
Locknut (29)
Install
Tighten hand tight only
g
Rack piston
Install:
Thoroughly lubricate O-ring (45)
(12)
and bore in housing (11) with clean hyd-
raulic oil. Position rack piston (12) so
teeth will be visible through side cover
opening in housing. Compress O-ring (45)
while sliding rack piston into bore of
housing
h
Top cover
Position
Align oil transfer holes in
assembly
top cover assembly (1) with
(1)
corresponding holes in
housing, then press top
cover assembly against
housing
i
Four capscrews
Install
Alternately tighten to 70-80
(9) and wash-
pounds foot
ers (10)
j
Rack piston
Position
Watch rack piston through
(12)
side cover hole in housing,
and rotate rack piston to
mark on centerline
k
Sector shaft
Install
So the center of sector shaft
(2) and side
gear engages center of rack
cover (4)
piston teeth
l
Six capscrews
Install
Alternately tighten to 150-
(3)
170 pounds foot
m
Adjusting screw
Adjust:
Rotate worm shaft of top cover
(15)
assembly (1) 90 degrees each side of
center using torque wrench and note
indications. Turn adjusting screw (15)
clockwise until torque wrench indicates
15-20 pounds inch. Back out adjusting
screw one full turn and note torque
wrench indications. Then turn adjusting
screw clockwise to increase torque 2-4
pounds inch at or below 45 degrees each
side of center. Tighten nut (14) to 20-25
pounds foot, and check that input torque
at any point of rotation is at or below
15 pounds inch
3-272
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