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 504 of 596

TM 9-2815-205-34

4-4. ENGINE TUNE-UP (Cont)

g. Maximum No-Load Speed Adjustment

(1)

(2)

(3)

4-20

Avoid contact with hot manifolds, pulleys, and other moving parts to avoid

personal injury.

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

cause hearing loss or injury.

NOT E

To adjust engine, start with five 0.010 inch shims and five 0.078 inch shims in governor

spring pack.

Buffer screw must project 5/8 inch beyond locknut or interference will result during

no-load speed adjustm-ent.

.

Start engine and operate untii coolant

outlet temperature is 160- 185°F

(71.1-85.0°C).

Remove load from engine and place

speed control lever (1) in FULL FUEL

position. Note engine speed. Maximum

speed should be approximately 2965

Stop engine and, if necessary, adjust

no-load speed as follows:

CAUTION

Do not jar high speed spring

and plunger assembly (47)

during removal or low speed

spring and cap may drop into

NOT E

Removing shims will decrease

engine speed and adding

shims will increase engine

speed. Each 0.010 inch in shim

will

change

engine

speed

approximately 10 RPM.

(a) Loosen idle speed screw 22) and

unscrew retainer nut (48) from side of

governor housing (49) using retaining

nut wrench (50). Remove highs speed

spring and plunger assembly (47).

(b) Remove high speed spring (51) from plunger (52) and add or remove shims (53) as

required to attain desired engine no-load speed.

-1

WARNING

RPM.

governor.