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Governor Adjustments
Operate the generator set to bring the unit up to its operating temperature before attempting an adjustment.
NOTE: If the governor is severely out of adjustment, manually adjust the linkage without any
load on the generator to obtain a safe output voltage before proceeding with the adjustment.
Three adjusting points are on the governor. (Refer to the illustration below.)
1. Bumper Screw This screw
is
used to
remove a no-load surge only. Never
tum the bumper screw into the governor
far enough so that it increases the no-
load speed. Toadjustthegovemor, tum
the bumper screw in until the engine
stops surging.
Now bring the In-
crease/Decrease Speed Screw (on the
governor) up until the generator runs
'between 60.5 to 61.5 cycles no-load.
Apply a 1/4, a 1/2 and a 3/4 load to the
generator and ensure the generator
does
not surge under these three load
intervals.
7.0 KW BeG
&
BCGA Governor
Increase/Decrease Speed
Carburetor Throttle Lever
NOTE:
Only If the generator surges at any of these load intervals are you to follow steps
#2
and
#3 below.
2. locreaseIPecrease Speed This adjusting
bolt sets
the no-load speed of the engine. (The linkage arm
between the governor arm and throttle lever should be adjusted to hold the throttle full open when the
engine is not running.) Make sure this linkage moves freely and that the
ball
joint connectors are properly
lubricated.
Use
graphite lubricant at this connection. Disconnect the
ball
joint and apply a graphite
lubricant to the inside of the jOint.
3. l::IumingtRegulatjon If the variation in engine speed between no-load and full..Joad is too great, adjust this
eye
bolt
to draw the spring closer to the lever hub. The increase/decrease speed bolt may need to
be
adjusted as Well.
If the governor surges whDe under a load, adjust this eye bolt to move the spring away from the lever hub.
(Check the speed adjustment.)
Governor Maintenance
1. Periodically lubricate the attaching points at both ends of the linkage arm. Use a graphite lubricant or an
equivalent.
NOTE:
Free movement of this linkage arm is important for proper govemor/throttJe operation.
67
Westerbeke Generators
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