AIR BOX HEATER. (Cont) - TM-9-2350-238-20-10329

TM 9-2350-238-20-1

Make sure MASTER switch is OFF before repairing

electrical circuits. Failure to observe this warning

could result in injury to personnel.

Step 7.

Disconnect lead from air box heater igniter. Place red probe in plug socket

C (lead 76C). Ground black probe. Set MASTER switch ON. Hold PUMP

AND HEATER IGNITER switch ON. If multimeter indicates about 24 volts,

notify direct support maintenance. If multimeter indicates no voltage, repair

lead 76C between engine disconnect and air box heater igniter switch.

Refer to page 2-371. Set MASTER switch OFF. Release PUMP AND

HEATER IGNITER switch. Connect lead.

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