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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 COOLANT LOW LEVEL INDICATOR MALFUNCTIONS—Continued 0058 00 BY 1. Remove harness 12349881 circuit 352/27K (1) from ENGINE COOLANT LOW LEVEL indicator (2). 2. Measure voltage between harness 12349881 plug (1) circuit 27K pin and ground. 3. Does multimeter read less than 17 volts? YES NO BYN 1. Remove jumper wire and install harness 12349873 plug on coolant level detector. 2. Replace ENGINE COOLANT LOW LEVEL indicator assembly (WP 0294 00). 3. Verify no faults found. B2Y 1. Turn MASTER SWITCH to OFF. 2. Remove instrument panel for access. See task: replace instrument panel mounts and ground lead (WP 0295 00). 3. Remove harness 12349881 circuit 27F plug (1) from cable assembly 12349858 circuit 27F jack (2). 4. Measure resistance between harness 12349881 circuit 27K plug and circuit 27F plug (1). 5. Does multimeter read 0 ohms? YES NO B2YN 1. Faulty harness 12349881 circuit 27K. Beyond unit maintenance repair. 2. Notify supervisor. B3Y 1. Install harness 12349881 circuit 352/27K plug on ENGINE COOLANT LOW LEVEL indicator. 2. Replace cable assembly 12349858 circuit 27F (WP 0290 00). 3. Verify no faults found. 0058 00-4