TM 9-2320-366-34-1
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
1.
START
YES
Hydraulic oil level OK.
PTO OK.
Hydraulic hoses, tubes
and fittings OK.
Is flow and pressure at
input to monoblock valve
assembly OK?
Monoblock Valve Flow
Test
REASON FOR QUESTION
WARNING
Read WARNING
on following page.
j8. M1089 MATERIAL HANDLING CRANE (MHC) HOIST DOES NOT WORK
INITIAL SETUP
Equipment Conditions
Engine shut down (TM 9-2320-366-10).
Personnel Required
(2)
Tools and Special Tools
Tool Kit, Genl Mech (Item 78, Appendix B)
Tester, Hydraulic (Item 73, Appendix B)
Pan, Drain (Item 43, Appendix B)
Goggles, Industrial (Item 28, Appendix B)
Faulty three stage
hydraulic pump.
Faulty monoblock valve.
Faulty input check valve.
Faulty main relief valve.
Faulty manual override
valve.
NO
Faulty three stage
hydraulic pump or
input check valve will
cause low pressure to
eight bank valve assembly.
Replace three stage hydraulic
pump (para 16-92).
Materials/Parts
Rag, Wiping (Item 60, Appendix C)
Hose (2) (Item 40, Appendix C)
Fitting (2) (Item 31, Appendix C)
Reducer, Tube (Item 61, Appendix C)
Adapter, Swivel (Item 3, Appendix C)
Adapter, Pipe (Item 2, Appendix C)
Fitting (Item 32, Appendix C)
Adapter, Pipe (Item 1, Appendix C)
2-1062
