AIR BOX HEATER. (Cont) - TM-9-2350-238-20-10324

TM 9-2350-238-20-1

2-12. ELECTRICAL CIRCUIT TROUBLESHOOTING (CONT).

Disconnect leads 480 and 480A from PRIME ENGINE FUEL FILTERS/

Step 2.

HEATER FUEL CYCLE ON AND OFF switch. Connect multimeter to

connector pins 1 and 3. Hold PRIME ENGINE FUEL FILTERS/HEATER

FUEL CYCLE ON AND OFF switch ON. If multimeter indicates 0 ohms, go

to step 3. If multimeter indicates infinity, replace PRIME ENGINE FUEL

FILTERS/HEATER FUEL CYCLE ON AND OFF switch. Refer to page

2-582. Release PRIME ENGINE FUEL FILTERS/HEATER FUEL CYCLE

ON AND OFF switch. Connect leads.

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