TM 9-2320-364-20-3 2-2688 10.  OUTRIGGERS DO NOT OPERATE (CONT). 9. Repair white wire (see schematic Fig 2-58) or notify DS Maintenance.   Verify repair, go to Step 24 of this Fault. YES NO WINCH/CRANE switch in   CRANE position. Self recovery winch operates. Hose 2902 OK. Crane hoses and tubes OK. Wire 1738 OK. White wire from truck connector   MC29 to rectifier OK. Rectifier OK. White wire from rectifier to   POWER switch faulty. POWER switch faulty. Black wire from POWER     switch to OSS faulty. OSS faulty. Red wire from OSS to crane   junction box, terminal 19 faulty. Outrigger/mast shutdown valve   harness connector white wire   faulty. Outrigger/mast shutdown valve   harness connector black wire   faulty. WINCH/CRANE switch faulty. Wire 1731 faulty. Black wire from truck connector   MC29 to system shutdown   relay faulty. System shutdown relay faulty. White wire from system     shutdown relay to crane   junction box, terminal 3 faulty. Main hydraulic pressure valve   harness connector white wire   faulty. Main hydraulic pressure valve   harness connector black wire   faulty. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Voltage test. STE/ICE-R #89. If white wire is loose, faulty or shorted to black wire, 22 to 28 vdc will not be input to crane POWER switch. WARNING Are 22 to 28 vdc measured at crane POWER switch white wire with ENGINE switch in the ON position? Read   WARNING on Page 2-2689