Section 3 − Operation - Miller Spectrum 300 Owner's Manual

3-1. Controls
Setting Gas/Air Pressure
3
70-150 PSI
(483-1034 kPa)
1 Power Switch
2 Power Light
3 Output Control
Use control to set cutting output.
The yellow zone is for use on 20 A or greater
primary circuits.
Place control in Gas/Air Set position to safely
adjust gas/air pressure. Only gas/air circuit
is activated.
OM-182 702 Page 6
SECTION 3 − OPERATION
3
5
7
6
Requires
Supply
4 Ready Light
Use light to tell if unit is ready for operation.
Ready light comes on when Power switch is
placed in On position, indicating that all safe-
ty shutdown systems are okay.
If Ready light does not come on, check
Trouble Lights.
5 Trouble Lights (See Section 4-2)
4 2
Set To
60 PSI (414 kPa)
1
Setting Gas/Air Pressure
6 Air Filter/Regulator
7 Pressure Adjustment Knob
Place Output control in Gas/Air position and
turn on gas/air supply. Lift knob and turn to
adjust pressure. Push knob down to lock in
setting.
Place Output control in desired cutting
output.
Ref. ST-801 306-B / Ref. SC-181 264-A