TM 9-2320-366-34-1
2-1096
KNOWN INFO
2.
NO
YES
Faulty hoist.
Faulty check valve.
KNOWN INFO
TEST OPTIONS
YES
3.
NO
TEST OPTIONS
REASON FOR QUESTION
Replace holding valve (para 16-18).
Faulty holding valve
will cause hoist to not work.
Faulty holding valve.
Faulty Hoist.
Faulty check valve.
Replace hoist hydraulic motor (para 16-19).
Replace hoist check valve.
POSSIBLE PROBLEMS
POSSIBLE PROBLEMS
Hydraulic oil level OK.
Hydraulic hoses, tubes,
and fittings OK.
Control valve OK.
Hoist-up lockout valve OK.
RV1 relief valve OK.
Is flow and pressure to
hoist hydraulic motor
valve assembly OK?
Hoist Hydraulic Motor
Valve Assembly Flow Test
Is flow through hoist
hydraulic motor OK?
Hydraulic oil level OK.
Hydraulic hoses, tubes
and fittings OK.
Control valve OK.
Hoist-up lockout valve OK.
RV1 relief valve OK.
Holding valve OK.
REASON FOR QUESTION
Hoist Hydraulic Motor
Flow Test
Faulty hoist hydraulic
motor or check valve will
cause hoist to not work.
l5. M1084/M1086 MATERIAL HANDLING CRANE (MHC) HOIST DOES NOT WORK (CONT)
