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 ENGINE CRANKS BUT WILL NOT START BELOW 40 F (AIR BOX HEATER IS USED)—Continued 0015 00 3BY 1. Measure voltage between power lead terminals 1 (+) (1) and 2 (-) (2) on air pump (3) with air box switch depressed. 2. Turn MASTER SWITCH OFF. 3. Did multimeter read less then 17 volts? YES NO 3BYN 1. Install air pump air box heater hose onto air box heater (WP 0180 00 or WP 0181 00). 2. Replace air pump (WP 0191 00). 3. Verify no faults found. 4BY 1. Install air pump to air box heater hose onto air box heater (WP 0180 00 or WP 0181 00). 2. Did multimeter read less than 17 volts? YES 0015 00-6 DY