TM-9-2815-205-34

ENGINE WITH CONTAINER; MODELS 5063-5299, 5063-5392, 5063-5393, 5063-5395, 5063-5398, 5063-539F, 5063-539L

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

AUGUST 1992

TM-9-2815-205-34 - Page 506 of 596

TM 9-2815-205-34

4-4. ENGINE TUNE-UP (Cont)

i. Buffer Screw Adjustment

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

●

Avoid contact with hot manifolds, pulleys, and

personal injury.

other moving parts to avoid

●

Wear proper ear protection when running engine. Noise volume of engine can

cause hearing loss or injury.

Start engine and operate until coolant outlet temperature is 165-185°F (71.1-85.0°C).

Place speed control lever (1) in FULL FUEL position and record maximum no-load speed.

NOTE

Do not increase engine idle speed more than 15 RPM with buffer screw.

Place speed control lever (1) in IDLE

position.

Hold locknut (20) and turn buffer screw (21)

until it contacts differential lever as lightly as

possible and eliminates engine roll.

Move speed control lever (1) to FULL

FUEL position. If maximum no-load speed

has increased more than 25 RPM, hold

buffer screw locknut (20) and back out

buffer screw (21) until no-load speed

increase is less than 15 RPM,

Hold buffer screw (21) and tighten locknut

(20).

Stop engine.

Install gasket (19), spring pack cover (18),

two copper washers (17), and two bolts

(16) on governor housing (49). Torque

bolts to 10-13 Ib-ft (14-18 NŽm).

END OF TASK

FOLLOW-ON MAINTENANCE

Para

3-20

3-21

3-22

Description

Install rocker arm covers (models

5063-5299 and 5063-5398).

Install rocker arm covers (models

5063-5392, 5063-5393, 5063-539F

and 5063-539 L),

Install rocker arm covers (model

5063-5395).

4-22

Change 1

FULL FUEL POSITION

‘/