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Page Title: 11 LOSS OF CRANE FUNCTIONS (SWING, TELESCOPE, BOOM AND HOIST) (CONT)
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TM 9-2320-364-20-3 2-2742 11  LOSS OF CRANE FUNCTIONS (SWING, TELESCOPE, BOOM AND HOIST) (CONT). 12. Repair blue wire (see schematic Fig 2-58) or notify DS Maintenance. Verify repair, go to Step 15 of this Fault. YES NO WINCH/CRANE switch in   CRANE position. Main hydraulic reservoir full. Outriggers operate. Outriggers down with weight off   truck suspension. Crane tubes and hoses OK. Accumulator and tube OK. Hose 2776 OK. White jumper wire from terminal   19 to 20 OK. Outrigger proximity switch (RH)   OK. Outrigger proximity switch (LH)   OK. Red wire from terminal 5 to   control lockout relay OK. Black wire from crane terminal 1   to control lockout relay OK. Green wire from control lockout   relay to black wire OK. Control lockout relay OK. 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 Voltage test. STE/ICE-R #89. If blue wire from control lockout relay to terminal 8 is loose, faulty or shorted to black wire, 22 to 28 vdc will not be input to system hydraulic pressure valve. WARNING Are 22 to 28 vdc measured at crane junction box, terminal 8 with ENGINE switch ON and crane POWER switch in ON position? Read   WARNING on Page 2-2743

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