A SERVICE OF

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15
ADJUSTMENTS
Injector pump
IDLE
SPEED
SCREW
SPEED
CONTROL
LEVER
LOCK NUT
CONTROL ADJUSTMENTS
If engine is hard to start or acceleration is uneven, check
control operation and adjust if required as described
below:
TO ADJUST THROTTLE CONTROL
[1]. Move equipment throttle control in SLOW or IDLE
position.
[2]. If lever does not contact idle speed screw, loosen casing
clamp screw.
[3]. Adjust throttle control cable to allow speed control lever
to contact idle speed screw.
[4]. Tighten casing clamp screw.
TO ADJUST IDLE SPEED
[1]. Move equipment throttle control in SLOW or IDLE
position.
[2]. Loosen lock nut.
[3]. Adjust idle speed screw to obtain equipment manufac-
turer’s specified idle speed.
[4]. Tighten lock nut.
[5]. Re-adjust throttle control if required.