Miller Electric Big Blue 400 KX manual Adjusting Engine Speed On Standard Models, Maximum

8-6. Adjusting Engine Speed On Standard Models

Engine Speed	RPM (Hz)
(No Load)
Weld/Power	1880 (61.7)
	Maximum

3

1

Stop

2

YStop engine and let cool.

Engine speed is factory set and should not require adjustment. Af- ter tuning engine, check engine speed with tachometer or frequen- cy meter. See table for proper no load speed. If necessary, adjust speed as follows:

Start engine and run until warm.

Place Process/Arc Drive (Dig) Control in Stick position.

1Lock Nut

2Adjustment Screw

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

.Do not set engine speed higher than specified.

3 Engine Stop Lever

Use lever to stop engine if Engine Control switch does not work.

YStop engine. Close door.

Tools Needed:

Ref. 803 576−C

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