TM 5-3805-262-20
3-21. STEERING SYSTEM TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. SLOW OR HARD STEERING (Cont).
Step 5.
Open air reservoir drain valve and drain air.
Loosen and disconnect
hose fitting from elbow
i n s t a l l e d i n p r e s s u r e
p r o t e c t i o n v a l v e .
Connect an air pressure
regulator to shop com-
pressed air system.
Connect air hose between
a i r p r e s s u r e r e g u l a t or
outlet and elbow in-
s t a l l e d i n p r e s s u r e p r o -
tection valve. Elbow is
9/16 - 18.
Loosen air horn valve
t u b e f i t t i n g c o n n e c t i on
a t t e e .
Adjust air pressure regu-
l a t o r t o 8 5 p s i .
Check if air flows from
pressure protection valve
o u t l e t a t l o o s e n e d a i r
h o r n v a l v e t u b e f i t t i n g.
a. If air flows from loosened tube fitting, hold cap and loosen
n u t .
Turn cap clockwise until air stops flowing then turn cap coun-
terclockwise until air just starts flowing from loosened tube
f i t t i n g .
Hold cap to prevent it from moving and tighten nut against cap.
Check and be sure air is still flowing from loosened tube fit-
t i n g .
Tighten loosened tube fitting at tee .
Disconnect shop compressed air system hose from elbow installed
in pressure protection valve.
Reconnect and tighten hose fitting to elbow installed in pres -
s u r e p r o t e c t i o n v a l v e.
Close air reservoir drain valve.
Go to step 6 below.
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