TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 1 Download
Page 356 of 890
TM 9-2320-280-20-1 KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION NO YES NO YES STARTER CIRCUIT 2-262 Change 1 START 1 CHECK ALL CABLES AND CONNECTIONS (BATTERY, STARTER, SOLENOID, ROTARY SWITCH, PCB/DISTRIBUTION BOX). REPAIR, CLEAN, OR REPLACE AS REQUIRED. ENGINE WON'T CRANK OR CRANKS SLOWLY WIRING BATTERIES STARTER SOLENOID ROTORY SWITCH ENGINE LOCKED PCB/DISTRIBUTION BOX VISUAL INSPECTION REPAIR OR REPLACE CABLES, CONNECTORS 2 CHECK BATTERY VOLTAGE WHILE TRYING TO CRANK THE ENGINE. IS THE BATTERY VOLTAGE AT LEAST 18 VOLTS? CABLES & CONNECTORS APPEAR OK WIRING BATTERIES STARTER/SOLENOID ROTARY SWITCH ENGINE LOCK PCB/DISTRIBUTION BOX 1. STE/ICE-R TEST 67 (Page 2-740) 2. MULTIMETER 3. VOLTS GAUGE If the engine cranks you know the engine is not locked and the rotary switch is OK. GO TO BATTERY CIRCUIT, Page 2-252 Bad connections are a very common problem. GO TO 3, Page 2-264 DIAGNOSTIC FLOWCHART