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 FRONT AND/OR REAR BILGE PUMP(S) AND/OR LIGHTS DON’T WORK—Continued 0080 00 B2Y 1. Measure voltage between bulb socket center contact (1) and ground. 2. Does multimeter read less than 17 volts? YES NO B2YN 1. Replace BILGE PUMP ON light assembly (WP 0286 00). 2. Verify no faults found. B3Y 1. Turn MASTER SWITCH to OFF. 2. Install plug 451 B or 452 B on indicator light assembly. 3. Remove master switch panel from distribution box (WP 0260 00 or WP 0261 00). 4. Remove plug 450 B (1) and plug 450 C (2) from front bilge pump circuit breaker (3); or remove plug 450 (4) and plug 450 A (5) from rear bilge pump circuit breaker (6). 5. Check continuity across circuit breaker jacks. 6. Is there continuity? YES NO B3YN 1. Replace bilge pump circuit breaker (WP 0275 00). 2. Verify no faults found. 0080 00-3