TM 9-2320-366-34-1
2-1074
Materials/Parts
Rag, Wiping (Item 60, Appendix C)
Hose (2) (Item 40, Appendix C)
Fitting (2) (Item 31, Appendix C)
Adapter, Swivel (Item 3, Appendix C)
Reducer, Tube (Item 61, Appendix C)
Adapter, Pipe (Item 1, Appendix C)
Adapter, Pipe (Item 2, Appendix C)
Personnel Required
(2)
l1. M1084/M1086 MATERIAL HANDLING CRANE (MHC) HYDRAULIC FUNCTIONS OPERATE
SLOWLY
INITIAL SETUP
Equipment Conditions
Engine shut down (TM 9-2320-366-10-1).
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)
KNOWN INFO
Hydraulic oil level OK.
PTO OK.
Hydraulic hoses, tubes, and
fittings OK.
POSSIBLE PROBLEMS
Faulty hydraulic rotary pump.
Faulty manual override valve.
Faulty input check valve.
Faulty main relief valve.
Faulty two-way solenoid valve.
1.
WARNING
Read WARNING
on following page.
START
Is input flow rate OK?
TEST OPTIONS
Input Flow Rate Test
REASON FOR QUESTION
Faulty hydraulic rotary pump
or manual override valve will
cause low pressure to control
valve assemblies.
NO
YES
Replace hydraulic rotary pump (para 16-91) or
manual override valve (para 16-30).
