TM-9-2350-277-20-1 Unit Maintenance Manual Volume 1 M113A3 M577A3 M1064A3 M1068A3 M58 Download
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TM 9-2350-277-20-1 FUEL LEVEL INDICATOR MALFUNCTIONS—Continued 0049 00 Y 1. Remove instrument panel for access (WP 0295 00). 2. Remove circuit 30 plug (1) from FUEL TANK switch jack (2). 3. Remove circuit 31 plug (3) from FUEL TANK switch jack (4). 4. Remove circuit 28 plug (5) from FUEL TANK switch jack (6). 5. Turn FUEL TANK switch to LEFT and measure resistance between FUEL TANK switch jack (6) and FUEL TANK switch jack (2). 6. Turn FUEL TANK switch to RIGHT and measure resistance between FUEL TANK switch jack (6) and FUEL TANK switch jack (4). 7. Did multimeter read 0 ohms both times? YES NO YN 1. Replace FUEL TANK select switch (WP 0277 00) or (WP 0282 00). 2. Verify no faults found. 2Y 1. Remove circuit 27 plug (1) from instrument panel circuit breaker jack (2). 2. Remove circuit 27A plug (3) from fuel level indicator jack (4). 3. Check continuity between circuit 27 plug (1) and circuit 27A plug (3). 4. Does multimeter read 0 ohms? YES NO 2YN 1. Install circuit 30 and 31 leads on FUEL TANK switch. 2. Replace cable assembly 12349858 circuit 27A (WP 0290 00). 3. Verify no faults found. 0049 00-2