Miller Electric Big 40 CX - Manual (Page 46)

OM-4427 Page 42
9-6. Adjusting Engine Speed On Models With Automatic Idle (Optional)
803 606
1850 rpm max
(61.6 Hz)
1250 rpm
(41.6 Hz)
Engine Speed
(No Load)
.
See engine manual for engine
speed adjustments on standard
models.
After tuning engine, check engine
speed with tachometer or frequency
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 − Weld
Terminals Always On position.
Idle Speed Adjustment
1
Throttle Rod/Plunger
2 Locknut
Loosen locknut. Place Engine Con-
trol switch in Auto position.
Turn throttle rod and plunger until
engine runs at idle speed. Tighten
locknut.
.
Be sure solenoid plunger pulls
all the way in (“bottoms”) when
energized.
.
If necessary, move linkage to
other hole in bracket or move
cotter pin to other hole in throttle
arm to set idle speed correctly.
Y Stop engine.
Weld/Power Speed Adjustment
Weld/power speed adjustment must
be done by a Factory Authorized
Service Agent.
2
1
If necessary,
move linkage to
other hole in
bracket or move
cotter pin to other
hole in throttle
arm to set idle
speed correctly.