Section 6 - Operation; Front Panel Controls - Miller Bobcat 260 Diesel Owner's Manual

6-1.

Front Panel Controls

NOTICE – Disconnect equipment from auxil-
iary power receptacles during start-up and
shutdown. Some equipment can be dam-
aged by changes in frequency as engine
rpms change during start-up and shutdown.
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.
2 Glow Plug Switch
If necessary, push switch down before start-
up. See glow plug table for operating
information.
To Start: Use glow plug switch if necessary.
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.
To Stop: Turn Engine Control switch to Off
position.
OM-286506 Page 30
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Complete Parts List is available at www.MillerWelds.com
SECTION 6 – OPERATION
4 5
Glow Plug Time
70°F (21°C)
32°F (0°C)
–4°F (–20°C)
NOTICE – Do not use glow plugs longer
than 20 seconds.
NOTICE – Do not use ether to start engine.
Using ether voids warranty.
3 Fuel Gauge/Maintenance Display
See insert from maintenance label.
4 Weld Process Selector Switch
NOTICE – Do not switch while welding.
Use switch to select type of weld output.
Wire (GMAW) Welding: Use a positive (+)
position for Direct Current Electrode Positive
(DCEP) and a negative (-) position for Direct
Current Electrode Negative.
Stick (SMAW) and TIG (GTAW Welding):
Use a positive (+) position for Direct Current
Electrode Positive (DCEP) and a negative
(-) position for Direct Current Electrode Neg-
ative. Use AC position for alternating
current.
6
1 2
5 Coarse Range Switch
NOTICE – Do not switch while welding.
0 seconds
Use switch to select weld amperage range
10 seconds
when Weld Process Selector switch is in
20 seconds
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.
6 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 124 A DC
based on control settings shown (80% of 60
to 140 A). Settings shown are typical for
welding with a 7018 (1/8) electrode.
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See Sections 6-3 thru 6-5 for typical
process
settings.
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connections and control