Engine Idle Speed Adjustment.

TM 9-2815-224-34&P

Engine Tune-Up Instructions (Cont)

19-10. ENGINE SPEED CONTROL ADJUSTMENT (M984) (CONT).

b. Engine Idle Speed Adjustment.

(1) Soldier A loosens idle speed

locknut (1) while Soldier B is in

cab.

(2) When told by Soldier A,

Soldier B starts engine

(TM 9-2320-279-10).

NOTE

Correct engine speed is 700 rpm.

(3) Turn idle adjusting screw (2)

counterclockwise to correct

engine speed.

(4) Tighten idle speed locknut (1).

(5) Soldier B stops engine when told

by Soldier A (TM 9-2320-279-10).

NOTE

Gasket is not replaced unless damaged.

(6) Install high speed spring retainer cover (3) with two screws (4), lockwashers (5), and gasket (6).

(7) Install air hose (7) on cover (3).

(8) Connect two wires (8) to

connectors (9) and

solenoids (10) on selector

valve (11).

c. Follow-on Maintenance.

(1) Air intake ducting installed (TM 9-2320-279-20).

(2) Install engine side panels (TM 9-2320-279-10).

(3) Close engine covers (TM 9-2320-279-20).

END OF TASK

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