TM 9-2320-364-20-3 2-2522 1.  NO CRANE FUNCTIONS WORK USING REMOTE CONTROL (CONT). 4. Repair wire 4 (see schematic Fig 2-58) or notify DS Maintenance. Verify repair, go to Step 8 of this Fault. YES NO All crane functions operate   using controls mounted on   crane. Violet wire from terminal 8 to   remote control connector outlet   terminal H OK. Green wire from remote control   connector, terminal B to crane   junction box ground OK. Remote control unit cable is OK. Remote control unit wire 4   faulty. ON/OFF EMERGENCY STOP   switch faulty. Remote control unit wire 8 from   ON/OFF switch to four terminal   connector faulty. Remote control unit wire 2   faulty. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Voltage test. STE/ICE-R #89. If wire 4 from remote control unit hookup terminal H to ON/OFF EMERGENCY STOP switch faulty, 22 to 28 vdc will not be present at controller. WARNING 5. Replace switch (Para 18-4). Verify repair, go to Step 8 of this Fault. YES NO All crane functions operate   using controls mounted on   crane. Violet wire from terminal 8 to   remote control connector outlet   terminal H OK. Green wire from remote control   connector, terminal B to crane   junction box ground OK. Remote control unit cable is OK. Remote control unit wire 4 OK. ON/OFF EMERGENCY STOP    switch faulty. Remote control unit wire 8 from   ON/OFF switch to four terminal   connector faulty. Remote control unit wire 2   faulty. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Voltage test. STE/ICE-R #89. If switch is faulty, 22 to 28 vdc will not be present at wire 8A. WARNING Are 22 to 28 vdc measured at wire 4 on ON/OFF EMERGENCY STOP switch? Are 22 to 28 vdc measured at wire 8A on ON/OFF EMERGENCY STOP switch when switch is turned ON? Read   WARNING on Page 2-2523 Read   WARNING on Page 2-2523