Governor Adjustment - Onan T260G Service Manual

GOVERNOR ADJUSTMENT
These engines are adapted for use where a wide range
of speed settings is desired. Engine speed is controlled
at any given point between minimum and maximum by
simply shifting the throttle lever on the dash panel until
the desired speed is reached.
A reliable instrument for checking engine speed is
required for accurate governor adjustment. Engine
speed can be checked with a tachometer.
t
Check the governor arm, linkage, throttle shaft, and
lever for a binding condition or excessive slack and
wear at connecting points. A binding condition at any
hunting condition and regulation could be erratic.
point will cause the governor to act slowly and regula-
tion will be poor. Excessive looseness may cause a
Work the arm back and forth several times by hand
while the engine is stopped to check for above
conditions.
If the governor is hunting or not operating properly,
adjust as follows (Figure 9).
1.
2 .
3.
On
Disconnect linkage (A) from one of holes (C).
Push linkage (A) and governorarm (B) as far back
(toward carburetor) as they will go.
Holding linkage and governor arm toward direc-
tion of carburetor, insert end of linkage into
whichever hole (C) in governor arm lines up the
closest. If between two holes, insert in next hole
out. Install clip to secure rod to arm.
side pull governor the governor spring is set by the
factory in the third hole of the governor arm. (Third~hole
from pivot). On front pull governors the governor spring
is set by the factory in the second hole of the governor
arm adapter. (Second hole from pivot.) To increase
sensitivity, move spring loop into a hole closer to the
pivot. To decrease sensitivity, move spring loop into a
hole farther away from the pivot. After sensitivity has
been
set
recheck the low speed rpm setting. Adjust if
necessary.
THROTTLE STOP
SCREW
THROTTLE PLATE
CARBURETOR
HIGH SPEED
FRONT PULL GOVERNOR
THROTTLE
SCREW
THROTTLE PLATE
GOVERNOR CONTROL
LINKAGE
GOVERNOR SPRING GOVERNOR
PIVOT
SHAFT YOKE
GOVERNOR
SIDE PULL GOVERNOR
FIGURE 9. VARIABLE SPEED GOVERNOR ADJUSTMENTS
7. 7