AIR BOX HEATER CIRCUIT. (Cont) - TM-9-2350-238-20-10321

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 5.

To access engine disconnect, remove hull transmission compartment deck

assembly. Refer to page 2-938. Disconnect wiring harness at engine

disconnect. Place red probe on plug pin A (lead 76A). Ground black probe.

Set MASTER switch ON. Hold PUMP AND HEATER IGNITER switch ON.

If multimeter indicates about 24 volts, go to step 6. If multimeter indicates

no voltage, repair lead 76A between PUMP AND HEATER IGNITER switch

and engine disconnect. Refer to page 2-371. Release PUMP AND

HEATER IGNITER switch. Set MASTER switch OFF. Connect wiring

harness.

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