9-7. Adjusting Engine Speed (Kohler-Powered Units)

2200 ± 50 rpm

3700 ± 50 rpm

1

5

4

2

 

3

Top View

After tuning engine, check engine speeds with a tachometer (see table). If necessary, adjust speeds as follows:

Start engine and run until warm.

Remove wrapper to access speed adjustments.

Idle Speed Adjustment

Move Engine Control switch to Run/Idle position.

1Throttle Solenoid

2Mounting Screws

3Idle Speed Screw

Loosen mounting screws. Adjust solenoid position so engine runs at idle speed. If necessary, back out idle speed screw so solenoid can be moved to correct position. Tight- en mounting screws. Be sure sole- noid linkage works smoothly.

Turn idle speed screw for fine adjustments.

Weld/Power Speed Adjustment

Move Engine Control switch to Run position.

4Weld/Power Speed Adjustment Nut

5Lock Nut

Loosen lock nut. Turn adjustment nut until engine runs at weld/power speed. Tighten lock nut.

YStop engine. Reinstall wrapper.

Tools Needed:

1/4, 3/8 in

802 339-B / 801 209-A

OM-945 Page 34

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Hobart Welding Products OM-945 194 047U manual Adjusting Engine Speed Kohler-Powered Units, Stop engine. Reinstall wrapper