TM 9-2320-366-34-1
2-1100
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
1.
YES
NO
Is flow through
telescope control
valve OK?
START
REASON FOR QUESTION
Repair four way control valve assembly
(para 16-28).
Four Way Control Valve
Assembly Flow Test
l7. M1084/M1086 MATERIAL HANDLING CRANE (MHC) BOOM DOES NOT TELESCOPE IN OR OUT
WARNING
Read WARNING
on following page.
INITIAL SETUP
Equipment Conditions
Engine shut down (TM 9-2320-366-10-1).
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)
Hydraulic oil level OK.
Hydraulic hoses, tubes,
and fittings OK.
Faulty four way control
valve.
Faulty tele out lockout valve.
Faulty holding valve.
Faulty telescopic cylinder.
Faulty four way control
valve will cause boom
to not telescope.
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)
