100 AMP CHARGING SYSTEM MALFUNCTIONS (M548A1)Continued

100 AMP CHARGING SYSTEM MALFUNCTIONS (M548A1)Continued - TM-9-2350-247-20-1_187

100 AMP CHARGING SYSTEM MALFUNCTIONS (M548A1)Continued - TM-9-2350-247-20-1_189

TM-9-2350-247-20-1 Crane (CAB) Components Recovery Vehicle Full Tracked: light Armored M578 (2360-00-439-6242) (EIC:3LA) Manual
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TM 9-2350-247-20-1 100 AMP CHARGING SYSTEM MALFUNCTIONS (M548A1)—Continued 0023 00 10Y 1. Stop engine (see your -10). 2. Install regulator on regulator plate. 3. Remove engine harness plug (1) from generator field switch jack (2). 4. Install jumper (3) on engine harness plug (1) between pins NO (4) and C (5). 5. Turn MASTER SWITCH ON. 6. Measure voltage between harness plug C2 (6), pin F (7), and ground. 7. Does multimeter read less than 17 volts? YES NO 10YN 1. Replace generator field switch (WP 0288 00). 2. Verify no faults found. 11Y 1. Turn MASTER SWITCH OFF. 2. Remove engine harness plug C1 (1) from harness bulkhead jack C1 (2). 3. Measure resistance between C1 plug (1), pins B (3), and F (4). 4. Does multimeter read 0 ohms? YES NO 11YN 1. Remove jumper wire from generator field switch plug. 2. Measure resistance between plug C1, pin F, and engine harness plug socket NO. If multimeter reads 0 ohms, see step 4. 3. Measure resistance between plug C1, pin B, and engine harness plug socket C. If multimeter reads 0 ohms, see step 4. 4. Repair engine harness circuit 1A or 1B (WP 0294 00). 5. Verify no faults found. 0023 00-6

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