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OM-4401 Page 32
7-8. Adjusting Engine Speed
Ref. 802 579-B
After tuning engine, check engine
speeds with a tachometer (see
table). If necessary, adjust speeds
as follows:
Start engine and run until warm.
Turn V/A control to max.
Adjusting Idle Speed
Turn Engine Control switch to Run/
Idle position.
1 Throttle Solenoid
2 Idle Speed Jam Nut
3 Idle Speed Screw
Loosen nut and turn screw clock-
wise to increase idle speed. Turn
screw counterclockwise to de-
crease idle speed. Tighten nut.
See engine manual for governor
sensitivity adjustment.
Adjusting Weld/Power Speed
4 Weld Speed Jam Nut
5 Adjustment Screw
Turn Engine Control switch to Run
position. Loosen nut and turn screw
counterclockwise to increase
speed. Turn screw clockwise to de-
crease speed. Tighten nut.
Using Engine Stop Lever
6 Engine Stop Lever
Use lever to stop engine if Engine
Control switch does not work.
2500 rpm
3750 Max
10 mm
Tools Needed:
6
1
2
3
4
5