M1084/M1086 MATERIAL HANDLING CRANE (MHC) BOOM DOES NOT TELESCOPE IN OR OUT

FOUR WAY CONTROL VALVE ASSEMBLY FLOW TEST - TM-9-2320-366-34-1_1248

TM-9-2320-366-34-1 M1078 Series 2 1/2-Ton 4x4 Light Medium Tactical Vehicles (LMTV) Manual
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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)

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