A complete Parts List is available at www.MillerWelds.com
OM-4436 Page 31
8-5. Adjusting Engine Speed
804 803-A / 801 209-A
After tuning engine, check engine
speeds with a tachometer (see
table). If necessary, adjust speeds
as follows:
Start engine and run until warm.
Turn Fine Control to 10.
Remove rear panel to access idle
speed adjustments.
Idle Speed Adjustment
Move Engine Control switch to
Run/Idle position.
1 Throttle Solenoid
2 Mounting Screws
3 Idle 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 ad-
justments.
Weld/Power Speed Adjustment
Move Engine Control switch to Run
position.
4 Weld/Power Speed
Adjustment Nut
5 Lock Nut
Loosen lock nut. Turn adjustment
nut until engine runs at weld/power
speed. Tighten lock nut.
Reinstall end panel.
Stop engine.
1/4, 3/8 in
Top View
Tools Needed:
3
5
4
1
2
2200 − 2300 rpm
(36.6 − 38.3 Hz)
3675 − 3750 rpm
(61.3 − 62.5 Hz)
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