TM 5-3805-262-20
3-21. STEERING SYSTEM TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. SLOW OR HARD
Step 7.
Step 8.
STEERING (Cont).
Remove pressure reducing valve (page 7-74).
I n s t a l l p r e s s u r e r e l i e f v a l v e i n p r e s s u r e r e d u c i n g v a l v e p o r t .
Connect an air pressure regulator to shop compressed air system.
Connect an air hose between pressure regulator and pressure reducing
valve port (port is 1/4 NPT).
Connect a zero to 50 psi air gage to pressure reducing valve port
(port is 1/4 NPT) located opposite side of valve .
Slowly adjust pressure regulator from zero to 50 psi while watching
pressure gage connected to pressure reducing valve.
Pressure gage should increase and remain steady at 7 to 12 psi and
pressure relief valve should vent air at 20 to 30 psi.
a. If pressure gage does not remain steady at 7 to 12 psi, replace
pressure reducing valve (page 7-74) .
b. If pressure relief valve does not vent air at 20 to 30 psi, re-
place pressure reducing valve (page 7-74).
c. If pressure relief valve and pressure reducing valve operate
okay, check hose connected to hydraulic reservoir for air leak-
age. Replace as necessary (page 7-74) and reinstall pressure
relief valve and pressure reducing valve (page 7-86).
Inspect chassis spindles for loose mounting hardware, cracks, or
other apparent damage.
3-145
