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TM 5-4210-220-12
4-25. STEERING SYSTEM - Continued
4-25.6 Power Steering Gear - Continued
(2)
Turn the relief valve plunger (A) or (B) in
or out until the high-pressure hiss starts
when a clearance of approximately 3/16
in. (4.5 mm) can be measured between
axle stops (1).
NOTE
Turning
the
plunger
in
will
increase the space between the
axle stops. Turning the plunger
out will decrease the clearance.
Do not turn the plungers out
beyond flush with plunger boss
or leakage will occur.
(3)
Repeat steps 1 and 2 at other steering
limit.
REPAIR
a.
Pitman Arm Repair.
NOTE
Steering gear removed from truck.
WARNING
To prevent a serious accident, do
not weld or apply excessive heat
to pitman arm or output shaft.
Welding or excessive heating may
lead to component failure and
loss of steering control.
(1)
Remove capscrew (1), lockwasher (2),
and spilt nut (3).
(2)
Using a puller, remove pitman arm (4)
from output shaft.
(3)
Clean and inspect splines on output shaft.
If these are seriously worn or damaged
the output shaft must be replaced. See b.
following.
(4)
Line up timing arrow on new pitman arm
with arrow on output shaft. Install pitman
arm and apply antiseize compound (item
3, Appendix E) to output shaft thread and
mating surfaces of pitman arm and nut
(3).
4-490
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