Miller Electric UPC 838 - Manual (Page 22)

OM-202 515 Page 18
1 Output Control 2 Power Switch
Place controls as indicated. Only gas/air
circuit is activated when the Power switch is
turned On with Output Control in Gas/Air Set
position.
3 Gas/Air Pressure Adjustment Knob
Pull knob and turn to adjust pressure.
Push knob in to lock setting.
Select desired cutting output with Output
Control.
5-2. Setting Gas/Air Pressure
Ref. 802 140 / Ref. 802 803-A
1
Set Controls Turn On Gas/Air Supply Adjust Pressure
On Unit
Select Desired Amperage
To Begin Cutting
Set UPC 838 To 80 PSI
Requires
90−150 PSI Supply
Setting Gas/Air Pressure
Place Output Control in
Gas/Air Set Position
Power Switch On
Rear of
Unit
2
3