PowerTec OMRG25204 - Manual (Page 95)

Lubrication & Maint./2000 Hour/24 Month
RG,RG34710,5583 –19–28JAN02–2/3
RG5752
–UN–03NOV97
DENSO In-Line Injection Pump
A—Fast Idle (Stop) Screw
B—Droop Adjusting Screw Access Plug Location
C—Droop Adjusting Screw
D—Slow Idle (Adjusting) Screw
E—Idle (Bumper) Spring
F—Throttle Lever
G—Mechanical Shutoff Lever
DENSO In-Line Injection Pumps Only
1. Check for specified no-load (frequency). If governor
regulation is within 5–7% range, no adjustment is
necessary.
2. If governor regulation is above 7% or below 5%, stop
engine and remove cap nuts from adjusting screws
before making adjustments.
3. Remove droop adjusting screw access plug (B, shown
removed) from top of governor housing.
4. Back out slow idle (adjusting) screw (D) and bumper
screw. Pull back on throttle lever (F, toward rear of
governor housing) by hand until the droop adjusting
screw (C) inside housing can be adjusted through the
access plug hole.
5. Screw the droop screw in (clockwise), counting the
turns until screw bottoms out. Then, return screw to
original setting.
NOTE: A noticeable click will occur at each 1/4 turn of
droop adjusting screw. One click clockwise will
increase no-load speed approximately 10 rpm,
counterclockwise will reduce speed by 10 rpm.
6. Screw in the droop screw (clockwise) no more than 1/2
turn (two clicks) at a time to reduce governor droop.
Turn counterclockwise no more than two clicks at a
time to increase governor droop (to reduce governor
sensitivity).
7. Replace access plug in top of governor housing. Start
engine, apply full (100%) load, and readjust high idle
adjusting screw until 1500 rpm is obtained at the
specified power.
8. Screw in idle (bumper) spring until engine speed
increases 5–10 rpm.
9. Repeat steps 4 through 7 until governor regulation is
within the 5–7% range.
10. Replace all cap nuts onto adjusting screws and
tighten lock nuts securely.
40-2
110306
PN=95
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