Adjustment. - TM-9-2815-224-34-P0481

TM 9-2815-224-34&P

Engine Tune-Up Instructions (Cont)

a. Adjustment.

CAUTION

To prevent engine damage make sure exhaust valves are closed and injector

follower is fully depressed.

Insert 0.059-in. feeler gage between slave piston foot (1) and exhaust valve bridge (2).

(1)

(2)

Loosen locknut (3) and turn adjusting screw (4) until a slight drag is felt on feeler gage.

Check both feet of slave piston (5).

(3)

Hold adjusting screw (4). Tighten locknut (3) to 15 to 18 lb-ft (20 to 24 N.m) and recheck

(4)

clearance.

b. Follow-on Maintenance.

(1) Install valve rocker cover (TM 9-2320-279-20).

(2) Start engine and operate for 10 minutes (TM 9-2320-279-10).

(3) Turn on engine brake switch (TM 9-2320-279-10).

(4) Open throttle to full engine speed and release.

(5) Check brake operation while engine is returning to idle.

(6) Repeat full-throttle and release procedure six to eight times to bleed air from engine brake

system.

(7) Turn off engine (TM 9-2320-279- 10).

(8) Adjust fuel injector timing (para 19-4).

END OF TASK

19-5