Adjust Maximum No-Load Engine Speed.

Example. If

the full load speed is to be 2600 rpm, then

(6) Check the gap between the low speed

the no-load speed

settings should be 2800 rpm to ensure

spring cap (6, fig. 3-14) and the high speed spring

governor will move

the injector racks into the full-fuel position

plunger (12) with a 0.0015 inch feeler gage. If gap

at the desired full

load speed.

setting is incorrect, reset the gap adjusting screw

(3) Hold the spring retainer (13) and tighten

(32, fig. 3-13).

the retainer lock nut (5).

(7) Hold the gap adjusting screw and tighten

i. Adjust Buffer Screw.

the lock nut (33).

(1) With engine running at normal operating

(8) Recheck the gap and readjust if necessary.

temperature, turn the buffer screw (43, fig. 3-13) in

h. Adjust Maximum No-Load Engine Speed.

so it contacts the differential lever (26) as lightly as

(1) Loosen the retainer lock nut (5, fig. 3-14)

possible and still eliminates the engine roll.

and back off the high speed spring retainer (13)

several turns. Start the engine and increase speed

NOTE

slowly. If speed exceeds required no-load speed

Do not increase engine idle speed more than 15 rpm

before the speed control lever reaches end of its

with buffer screw.

travel, back off the spring retainer a few additional

turns.

(2) Recheck the maximum no-load speed. If it

has increased more than 25 rpm, back off buffer

(2) With engine at operating temperature and

no-load on engine, place speed control lever in

screw until the increase is less than 25 rpm.

maximum speed position. Turn the high speed

(3) Hold the buffer screw (43) and tighten the

lock nut (42).

spring retainer (13) in until engine is operating at

recommended no-load speed. The maximum no

load speed varies with the full load operating speed.

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