Miller Electric Big Blue 452P - Manual (Page 52)

OM-496 Page 46 Return To Table Of Contents
9-5. Adjusting Engine Speed On Standard Models
802 490-D / 802 491
Y Stop 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.
On CC Models, place Stick/TIG
switch in Stick position.
On CC/CV models, turn Process/
Contactor switch to Stick − Elec-
trode Hot position.
1 Lock Nut
2 Adjustment 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.
Y Stop engine.
Close door.
Tools Needed:
10 mm
RPM (Hz)
Engine Speed
(No Load)
Weld/Power
1850 (61.7)
Maximum
3
1
2