SECTION V: TROUBLESHOOTINGTM 9-2350-256-20WARNINGRemove all jewelry such as rings, dogtags, bracelets, etc. If jewelry contacts ametal surface a direct short may result ininstant heatingof tools, damage toequipment, and injury or death topersonnelFReconnect wire 65 to APU START switch. Disconnectwire 65A from APU START switch. Place red lead ofmultimeter in wire 65A and black lead to ground. TurnMASTER and PREHEAT switches ON, and check forvoltage. Turn MASTER and PREHEAT switches OFF.If voltage is not present, go to step G. If voltage ispresent, replace START switch (see paragraph 13-7).GReconnect wire 65A to APU START switch.Disconnect wire 65A from APU START switch side of15 A circuit breaker. Place red lead of multimeter onterminal of 15 A circuit breaker and black lead toground. Turn MASTER, and PREHEAT switches ONand check for voltage. Turn MASTER, and PREHEATswitches OFF. If voltage is not present, go to step H.If voltage is present, repair/replace wire 65A of APUcontrol box wiring harness (see paragraph 13-7).2-165
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