SECTlON V: TROUBLESHOOTINGTM 9-2350-256-20WARNINGRemove all jewelry such as rings, dog tags ,bracelets, etc. If jewelry contacts a metalsurface a direct short may result in instantheating of tools, damage to equipment, andinjury or death to personnel.R Reconnect wire 26B to Y-connector behind gagepanel. Open air inlet doors. Disconnect bulkheadto APU, master relay and rigger's lights wiringharness from bulkhead disconnect. Place red leadof multimeter in socket H of wire 26 and black leadto ground. Turn MASTER switch on and check forvoltage. Turn MASTER switch OFF. If voltage ispresent, repair/replace wire 26 of APU control boxto foot dimmer switch and bulkhead wiring harness(see paragraph 6-79 for dual voltage; 6-80 for singlevoltage). If voltage is not present, go to step S.S Reconnect bulkhead to APU, master relay, andrigger's lights wiring harness to bulkhead. Removeengine deck (see paragraph 9-51). Disconnect wire26 of bulkhead to APU, master relay and rigger'slights wiring harness from connector. Place redlead of multimeter in wire 26 and black lead toground. Turn MASTER switch on and check forvoltage. Turn MASTER switch OFF. If voltage ispresent, repair/replace wire 26 of bulkhead toAPU, master relay, and rigger's lights wiringharness (see paragraph 6-75 for dual voltage; 6-76for single voltage). If voltage is not present, go tostep T.T Reconnect wire 26 of bulkhead to APU, masterrelay, and rigger's lights wiring harness toconnector. Disconnect bulkhead to engine bracketand rear fuel tank transmitter wiring harness fromengine disconnect. Place red lead of multimeter onpin M of wire 26 and black lead to ground. TurnMASTER switch on and check for voltage. TurnMASTER switch OFF. If voltage is presentrepair/replace wire 26 of bulkhead to enginebracket and rear fuel tank transmitter wiringharness (see paragraph 6-73 for dual voltage; 6-74for single voltage). If voltage is not present, go tostep U.2-357
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business