TM-9-2350-247-20-1 Unit Maintenance Manual Volume 1 M548A1 M548A3 Tracked Cargo Carrier Download
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TM 9-2350-247-20-1 MASTER SWITCH ON INDICATOR DOES NOT LIGHT—Continued 0049 00 3BY 1. Turn MASTER SWITCH ON. 2. Measure voltage between MASTER SWITCH circuit 6 terminal (1) and ground. 3. Does multimeter read more than 17 volts? YES NO 3BYN 1. Replace MASTER SWITCH assembly (WP 0271 00). 2. Verify no faults found. 4BY 1. Turn MASTER SWITCH OFF. 2. Inspect MASTER SWITCH to bus bar lead (1). 3. Are lead and lead ends free from corrosion and damage? YES NO 4BYN 1. Repair MASTER SWITCH to bus bar lead (WP 0294 00). 2. Verify no faults found. 5BY 1. Repair power/instrument panel wiring harness (WP 0294 00). 2. Verify no faults found. 0049 00-4