Onan MDJE Service Manual

I
Sensitiwity Adjustment (Begin Spec R): Adjust sensi-
tivity (no-load to full-load speed drop) by turning the
sensitivity adjusting ratchet nut.
If speed drops too
much when a full load is applied, turn the ratchet nut
counterclockwise. An oversensitive adjustment, ap-
proaching no speed drop when load is applied, may
result
in hunting condition (alternate increase and
decrease
in speed).
MDJA Governor System
Adjust engine speed by turning governor speed
adjusting nut (Figure
73 prior to SPEC R and Figure
74 SPEC R). Turn nut clockwise to increase speed,
counterclockwise to decrease speed.
Adjust sensitivty (no-load to full-load speed drop) by
turning the sensitivity adjusting ratchet nut. If speed
drops too much when full load is applied, turn the
justment, approaching no speed drop when load is
applied, may result in a hunting condition (alternate
increase and decrease in speed). Adjust for maxi-
mum sensitivity without hunting. The use of a reed-
type frequency meter will give the most accurate
results. On generator sets, it should be possible to
adjust for a sensitivity of less than
3 hertz; 2 hertz is
usually attainable.
ratchet nut counterclockwise. An oversensitive ad-
FIGURE 74. MDJA (BEGIN SPEC R)
GOVERNOR ADJUSTMENTS
PUMP
(HUL
D SP RI NG STUD
GOVERNOR SPRING
*-TURN
FOR MINIMUM
.SPEED DROETHEN
ADJUST NUT
ADJUSTMENT STUD
n1 \L/ TURN TO INCREASE R.P.M.
of hole in governor shaft.
A9
AND NUT
3-
FIGURE 73. MDJA GOVERNOR ASSEMBLY (PRIOR TO SPEC R)
. 61
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Onan MDJE Specifications

General

Brand	Onan
Model	MDJE
Category	Engine
Language	English