TM 9-2350-247-20-1ENGINE CRANKS BUT WILL NOT S TART BELOW 4 0F (AIR BOX HEATER ISUSED)—Continued0015 003BY1. 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?YESNO3BYN1. Install air pump air box heater hoseonto air box heater (WP 0180 00 orWP 0181 00).2. Replace air pump (WP 0191 00).3. Verify no faults found.4BY1. 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?YES0015 00-6DY
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