TROUBLESHOOTING (CONT) - TM-3-1040-279-12-P0053

TM 3-1040-279-12&P

TROUBLESHOOTING (CONT)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Step 3. Check nozzle assembly for fuel flow.

Loosen nut on nozzle clamp and life catch. Remove clamp and nozzle assembly from

engine head.

Place nozzle assembly in a container.

Bleed air from air compressor tank through control valve.

Disconnect the air supply hose from AIR coupling on cover assembly.

Set circuit breaker CB1 and POWER switch to ON position.

CAUTION

Do not hold FUEL or ENGINE switch in

START position for more than 30 seconds.

Hold FUEL switch in START position until FUEL indicator lights.

Release FUEL switch to RUN position.

WARNING

FUEL SPRAY is very flammable. Do not

allow open flames, sparks, or heated objects

in the area during procedure. Point nozzle

assembly away from personnel and smoke

Hold ENGINE switch in START position.

Observe fuel flow at nozzle assembly.

If fuel flow is not present, set all switches and circuit breaker CB1 to OFF and

notify organizational maintenance.

If fuel flow is present, set FUEL switch to OFF, reconnect air supply hose at cover

assembly and go to next step.

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