TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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TM 9-2320-387-24-l STARTER CIRCUIT DIAGNOSTIC FLOWCHART TEST OPTIONS - KNOWN INFO NO SOLENOID CONTROL VOLTAGE 1. STEXE-R TEST 89 (Page 2-508) 2. MULTIMETER DISCONNECT WIRE 14A AT THE NEUTRAL SAFETY SWITCH. TURN ROTARY SWITCH TO START. IS THERE BAlTERY VOLTAGE AT WIRE 14A (THE NEUTRAL SAFETY SWITCH END)? POSSIBLE PROBLEMS REASON FOR QUESTION Current flows to neutral safety switch before reaching solenoid. PCB WIRING ROTARY SWITCH NEUTRAL SAFETY SWITCH n3 I I TE KNOWN INFO I 1. STE/ICE-R TEST 91 (Page 2-508) 2. MULTIMETER DISCONNECT WIRE 148 AT NEUTRAL SAFETY SWITCH. IS THERE CONTINUI-lY ACROSS NEUTRAL SAFETY SWITCH (WIRE 14 TO WIRE 14)? VOLTAGE AVAIlABLE ROTARY SWITCH OK POSSIBLE PROBLEMS REASON FOR QUESTlON If there is no continuity, then current will not flow through switch. NEUTRAL SAFETY SWITCH PCB WIRING , G3 1 TEST OPTlONS DISCONNECT BODY CONNECTOR 1. STE/lCE-R TEST 91 FROM PROTECTIVE CONTROL BOX. (Page 2-508) IS THERE CONTINUITY FROM WIRE 14B AT NEUTRAL SAFETY SWITCH TO BODY CONNECTOR HARNESS SOCKET A? OR REPLACE KNOWN INFO NEUTRAL SAFETY SWITCH OK 2. MULTIMETER REASON FOR QUESTION An open wire here could have prevented current flow between PCB and neutral switch. POSSIBLE PROBLEMS PC6 WIRING 2-276