Section 6 - Operation; Front Panel Controls - Miller Bobcat 225 Owner's Manual

6-1.

Front Panel Controls

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.
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Place switch in Run position to operate
most MIG equipment.
To Start: turn Engine Control switch to Start
position. Release switch when engine starts.
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If the engine does not start, let engine
come to a complete stop before at-
tempting restart.
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During cold weather some gasoline en-
gines encounter difficulties that are
easily remedied. See Section 6-3 and
Troubleshooting Tables.
To Stop: turn Engine Control switch to Off
position.
2 Engine Hour Meter/Fuel Gauge/Idle
Control
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Complete Parts List is available at www.MillerWelds.com
SECTION 6 – OPERATION
Low fuel is indicated by an orange flashing
light on the right side of the display.
A maintenance interval is reached when the
wrench icon appears in the display.
Hour Meter: With engine off, place Engine
Control switch in Run/Idle position to view
engine hours.
Oil Change Interval: With engine off, place
Engine Control switch in the Run position to
see hours before next oil change. Oil hours
start at 100 and count down to 0 (zero) (oil
change due).
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Negative hours indicated when past
recommended oil change interval.
To reset, cycle Engine Control switch from
Run/Idle to Run three times within five sec-
onds (engine off).
3 Process/Coarse Range Switch
NOTICE – Do not switch under load.
Use switch to select process, and weld am-
perage range when switch is in Stick/Tig
position, or voltage range when switch is in
Wire position.
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For best arc starts and when using
weld and generator power together,
use a low Coarse Range setting with
the Fine control set at 7 or higher.
4 Fine Control
Use control to select weld amperage (Stick/
Tig) or voltage (Wire) within the range se-
lected by the Coarse Range switch. Control
may be adjusted while welding.
Set control at 10 for maximum generator
power.
Weld output would be about 120 A DC
based on control settings shown (80% of 50
to 150 A). Settings shown are typical for
welding with a 7018 (1/8) electrode.
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See Sections 6-4 thru 6-6 for typical
process connections
settings.
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and control