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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 ENGINE OIL LOW PRESSURE INDICATOR MALFUNCTIONS—Continued 0055 00 2Y 1. Replace the engine oil low pressure transmitter (WP 0320 00). 2. Verify no faults found. AY 1. Remove harness 12349873 plug (1) from harness 12349881 jack (2) at carrier bulkhead. 2. Is ENGINE OIL LOW PRESSURE indicator still on? YES NO AYN 1. Replace harness 12349873 circuit 34 (WP 0382 00). 2. Verify no faults found. A2Y 1. Remove ENGINE OIL LOW PRESSURE indicator cover lens (1) gasket (2), bulb (3), and gasket (4). 2. Remove harness 12349881 circuit 27J/34 plug (5) from ENGINE OIL LOW PRESSURE indicator jack (6). 3. Measure resistance between indicator jack (6) pins and ground one at a time. 4. Did multimeter read 0 ohms for either measurement? YES NO A2YN 1. Faulty harness 12349881 circuit 34. Beyond unit maintenance repair. 2. Notify supervisor 0055 00-2