Quantcast 11.  LOSS OF CRANE FUNCTIONS (SWING, TELESCOPE, BOOM, AND HOIST)

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Page Title: 11. LOSS OF CRANE FUNCTIONS (SWING, TELESCOPE, BOOM, AND HOIST)
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VERIFY REPAIR - TM-9-2320-364-20-3_841
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TM-9-2320-364-20-3 Truck Tractor M1074 and M1075 Palletized Load System (PLS) Manual
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VISUAL INSPECTION - TM-9-2320-364-20-3_843
TM 9-2320-364-20-3 2-2720 11.  LOSS OF CRANE FUNCTIONS (SWING, TELESCOPE, BOOM, AND HOIST). INITIAL SETUP 1. Replace tubes or hoses (Para 20-3 and schematic Figs 2-59 through 2-64).   Verify repair, go to Step 15 of this Fault. START YES NO WINCH/CRANE switch in   CRANE position. Main hydraulic reservoir full. Outriggers operate. Outriggers down with weight off   truck suspension. Crane tubes or hoses faulty. Accumulator or tube faulty. Hose 2776 faulty. White jumper wire from terminal   19 to 20 faulty. Outrigger proximity switch (RH)   faulty. Outrigger proximity switch (LH)   faulty. Red wire from terminal 5 to   control lockout relay faulty. Black wire from crane terminal 1   to control lockout relay faulty. Green wire from control lockout   relay to black wire faulty. Control lockout relay faulty. Blue wire from control lockout   relay to crane terminal 8 faulty. Crane system hydraulic   pressure valve harness   connector white wire faulty. Crane system hydraulic   pressure valve harness   connector black wire faulty. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Visual inspection. Leaking or damaged hose or tube will not deliver adequate supply pressure or may restrict return flow to reservoir. 2-29.  CRANE TROUBLESHOOTING (CONT). Tools and Special Tools Tool Kit, General Mechanic’s:  Automotive (Item 74, Appendix G) STE/ICE-R (optional) (Item 3, Appendix G) Multimeter (Item 44, Appendix G) Equipment Condition Engine OFF, (TM 9-2320-364-10) Parking brake applied, (TM 9-2320-364-10) Wheels chocked, (TM 9-2320-364-10) Crane outriggers down, (TM 9-2320-364-10) Mast fully erected, (TM 9-2320-364-10) References TM 9-2320-364-10 TM 9-4910-571-12&P Are crane tubes and hoses free of leaks and damage? WARNING Read   WARNING on Page 2-2721

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