Operator`s manual
Governor
Adjustments
Operate the generator set to bring the unn 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 turn the bumper screw into
the governor far enough so that
it
increases the no-load speed. To
adjust
the
governor,
turn
the
bumper screw in until the engine
stops surging.
Now
bring the In-
crease/Decrease Speed Screw
(on the governor) up until the gen-
erator 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 underthese three load inter-
vals.
NOTE: Only If the generator
LINKAGE
ARM
4.5
f<YV
BCG
Governor
SCREW
HUNTING/
REGULATION
ADJUSTMENT
INCREASE/DECREASE
SPEED
SCREW
CARBURETOR
THROTTLE
LEVER
surges at any
of
these load intervals are you
to
follow steps
#2
and
#3
below.
2.
Increase/Decrease Speed This adjusting bolt sets the no-load speed
of
the engine.
(The
linkage arm be-
tween the governor arm and throttle lever should be adjusted
to
hold the throttle full open when the
en-
gine
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.
Hynting/Regulation If the variation in engine speed between no-load and full-load
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 ad-
justed as
well.
If
the governor surges while 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 governor/throttle operation.
67 Westerbeke Generators