Miller Electric 300 P Adjusting Engine Speed On Standard Models, Maximum, Stop engine. Close door

8-6. Adjusting Engine Speed On Standard Models

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

3

2

1

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.

Turn Process/Contactor switch to Weld Terminals Always On − 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. Tampering with adjustments other than shown may affect engine warranty

3Engine Stop Lever

Y Stop engine. Close door.

Tools Needed:

803 563-E

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