TM 5-2350-262-20-3
MAIN RELIEF VALVE PRESSURE CHECK
WARNING
Do not operate ejector when personnel are in bowl. Do not work
in bowl unless ejector lock is engaged. Failure to comply may
result in severe injury or death to personnel.
NOTE
Have suitable container ready to catch oil.
STEP 1
To test 13R circuit, disconnect HYDR FLTR-IN-13R hose (1) from 13R high-pressure
filter inlet port.
Connect tee (2) between 13R high-pressure filter inlet port and HYDR FLTR-IN-13R hose
(1). Connect pressure measuring device (3) to tee (2).
Start vehicle engine and read pressure measuring device (3).
With SPRUNG/UNSPRUNG control valve in SPRUNG mode, actuate left suspension
control valve to RAISE position. Read pressure measuring device (3).
Stop engine; relieve hydraulic pressure. Remove all test equipment and connect hoses.
STEP 2
To test 13L circuit, disconnect HYDR FLTR-IN-13L hose (4) from 13L high-pressure filter
inlet port. Connect tee (2) and pressure measuring device (3) between 13L hose (4) and
HYDR FLTR-IN-13L high-pressure filter inlet port.
Using right suspension control valve, repeat the above test.
Stop engine; relieve hydraulic pressure.
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