Section 4 - Operating Welding Generator; Front Panel Controls - Miller Electric Bobcat 225G Owner's Manual

SECTION 4 – OPERATING WELDING GENERATOR

4-1. Front Panel Controls

3
1 Engine Control Switch
Use switch to start engine, select speed,
and stop engine. In Run/Idle position, en-
gine runs at idle speed at no load, and weld/
power speed under load. In Run position,
engine runs at weld/power speed.
Place switch in Run position to operate
most GMA W equipment.
2 Engine Choke Control
Use control to change engine air-fuel mix.
To Start: pull out choke and turn Engine
Control switch to Start position. Release
switch and slowly push choke in when en-
OM-175 104 Page 8
4
gine starts. Do not crank engine if engine is
still turning. Set anti-icing control (see Sec-
tion 3-4).
To Stop: turn Engine Control switch to Off
position.
3 Weld Process Selector Switch
Use switch to select type of weld output.
Use a positive (+) position for Direct Current
Electrode Positive (DCEP) and a negative
(–) position for Direct Current Electrode
Negative (DCEN). Use AC position for alter-
nating current.
4 Coarse Adjust Switch
5 1
Use switch to select weld amperage range
when Weld Process Selector switch is in
Stick/Tig position, or voltage range when
switch is in Wire position.
For best arc starts, use lowest amper-
age range possible.
5 Fine Adjust Control
Use control to select weld amperage (Stick/
Tig) or voltage (Wire) within the range se-
lected by the Coarse Adjust switch. Control
may be adjusted while welding. Weld output
would be 110 A DC based on control set-
tings shown (50% of 70 to 150 A).
6 Engine Hour Meter
6 2
Ref. ST-178 079-A