ENGINE START

TB 1-1730-229-30-03

NOTE

All indicator lamps must illuminate. Exception: For D-Model only, the

DC VOLTAGE FAULT lamp does not illuminate.

______ d. Verify that the LOW FUEL PRESS light is illuminated. Verify that LOW OIL PRESS light is

illuminated.

______ e. Verify service bay and control panel lights in both bright and dim positions.

______ f.

Verify that battery charger fault light is illuminated.

______ g. For D-Model only, verify CURRENT LIMITER SELECTOR switch is not in the AH-64D, 90

KVA, or blank position. (Surge control valve closed.)

______ h. Remove small access panel in DC cable bay to observe hydraulic pump and inspect for

leakage during engine start-up.

______ i.

Secure engine access door partially open to observe engine area during engine start-up.

(look for oil, fuel, or other hazards)

4.4

ENGINE START

NOTE

Never attempt to start the unit while the engine is still operating.

Never attempt more than 3 starts in an hour.

Never allow the starter to operate for more than 30 seconds.

______ a. Turn the ENGINE CONTROL switch on the Master Control Panel to the START position

momentarily and then release to RUN position.

______ b. Immediately verify that hydraulic pressure increases to 450-600 psig.

______ c.

Observe STARTER CURRENT to peak at approximately 850-1000 amps and immediately

fall to approximately 100 amps. Observe the GTE STARTER ON lamp (green) illuminates.

______ d. After several seconds, the LOW FUEL PRESSURE and LOW OIL PRESSURE lights should

extinguish. Shut engine off if either does not extinguish.

______ e. When engine RPM reaches 10%, EGT should begin to rise and will peak during acceleration.

Maximum EGT allowed is 1785F for 10 seconds maximum at speeds below 60% RPM.

______ f.

When engine RPM reaches 60%, verify that the GTE STARTER ON Lamp extinguishes and

the STARTER CURRENT has decreased to 0.