TM 9-2320-366-34-1
NO
YES
4.
WARNING
Read WARNING
on following page.
REASON FOR QUESTION
Counterbalance Valve
Pressure Test
TEST OPTIONS
Low pressure through
counterbalance valve will
cause fail-safe brake not to
release.
KNOWN INFO
Is pressure at S1
on counterbalance
valve OK?
Hydraulic oil level OK.
Hydraulic hoses, tubes,
and fittings OK.
15K self-recovery winch
electric circuit OK.
Hydraulic oil tank, filters,
and strainers OK.
15K self-recovery winch
control valve assembly
OK.
Hydraulic rotary pump OK.
Three stage hydraulic
pump OK (M1089).
POSSIBLE PROBLEMS
Faulty 15K self-recovery
winch counterbalance
valve.
Faulty 15K self-recovery
winch cartridge valve.
Faulty 15K self-recovery
winch hydraulic motor.
Faulty 15K self-recovery
winch.
Replace hydraulic rotary
pump (para 16-91) or
three stage hydraulic pump
(M1089) (para 16-92).
i1. 15K SELF-RECOVERY WINCH DOES NOT WORK (CONT)
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