8-5. Adjusting Engine Speed
.
A complete Parts List is available at www.MillerWelds.com
2450 − 2550 rpm
(40.8 − 42.5 Hz)
3675 − 3750 rpm
(61.3 − 62.5 Hz)
1
2
4
3
After tuning engine, check engine
speeds with a tachometer (see
table). If necessary, adjust speeds
as follows:
.
Make speed adjustments with
Fine control in Max position
(see Section 6-1).
Start engine and run until warm.
Remove top cover to access en-
gine speed adjustments.
Idle Speed Adjustment
Move Engine Control switch to
Run/Idle position.
1
Throttle Solenoid
2
Mounting Screws
Loosen mounting screws. Adjust
solenoid position so engine runs at
idle speed.
Tighten mounting
screws. Be sure solenoid linkage
works smoothly.
Weld/Power Speed Adjustment
Move Engine Control switch to Run
position.
3
Jam Nut
4
Lock Nut
5
Weld/Power Speed
Adjustment Screw
Loosen jam nut and lock nut. Turn
adjustment screw until engine runs
at weld/power speed. Tighten jam
nut, and then tighten lock nut.
!
Stop engine.
Reinstall top cover and close ac-
cess door.
5
Tools Needed:
8 mm
OM-237 711 Page 37
10 mm
805 396 / 805 255