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 I KNOWN INFO ENGINE WON’T STOP CRANKING POSSIBLE PROBLEMS ROTARY SWITCH PCB WIRING STARTER ENGINE WON‘T STOP CRANKING POSSIBLE PROBLEMS ROTARY SWITCH PCB WIRING STARTER DISCONNECT NEGATIVE BATTERY CABLE TO STOP CRANKING. NONE DIAGNOSTIC FLOWCHART - I REASON FOR QUESTION No matter what’s wrong, the starter can’t crank without battery power. , DISCONNECT WIRES AT ROTARY SWITCH. WITH SWITCH IN OFF POSITION, DO YOU GET: OPEN CIRCUIT FROM B TO S? OPEN CIRCUIT FROM B TO R? OPEN CIRCUIT FROM R TO S? i r OPTIONS 1. STE/ICE-R TEST 91 (Page 2-508) 2. MULTIMETER . REASON FOR QUESTION A good switch exhibits these open circuits in the OFF position. I- KNOWN INFO ENGINE WON’T STOP CRANKING POSSIBLE PROBLEMS ROTARY SWITCH PCB WIRING STARTER WITH ROTARY SWITCH IN RUN POSITION, DO YOU GET: OPEN CIRCUIT FROM B TO S? OPEN CIRCUIT FROM R TO S? SHORT CIRCUIT FROM B TO R? TE! I I #T OPTIONS 1. STEIICE-R TEST 91 (Page 2-508) 2. MULTIMETER REASON FOR QUESTION A good switch has these opens and shorts.