Miller Electric 250 - Manual (Page 27)

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A complete Parts List is available at www.MillerWelds.com
OM-217 455 Page 23
6-4. Typical MIG Welding Connections And Settings
Ref. 804 249-A / Ref 228 647-A / Ref. 802 766-C
! Stop engine.
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This section provides general guide-
lines and may not suit all ap-
plications.
Typical Control Settings For Short
Circuit Transfer Using .035 (ER70S-3)
Solid Wire And 75/25 Argon/CO 2 Gas:
>
Set Weld Process Selector switch
to Wire + (DCEP) position.
>
Set Coarse Range switch to Wire/
Low Range (17-22 volts) position.
>
Set Fine Control to obtain minimum
spatter.
>
Set wire feed speed between
100-300 ipm.
Typical Control Settings For Spray
Transfer Using .035 (ER70S-3) Solid
Wire And 80% Or Higher Argon/CO 2
Gas:
>
Set Weld Process Selector switch
to Wire + position.
>
Set Coarse Range switch to Wire/
High Range (20-28 volts) position.
>
Set wire feed speed between
320-500 ipm.
>
Set Fine control to 3 and increase
for longer arc length.
Typical Control Settings Using .045
(E71T-11) Self-Shielded Flux Core
Wire:
>
Set Weld Process Selector switch
to Wire − position (DCEN).
>
Set Coarse Range switch to Wire/
Low Range (17-22 volts) position.
>
Set Fine Control near minimum set-
ting.
>
Set wire feed speed between
125-200 ipm.
>
Do a test weld. To increase arc
length, increase Fine Control set-
ting. To shorten arc length, reduce
fine control setting or increase wire
feed speed.
1 Work Clamp
2 Wire Feeder
3 MIG Gun
4 Gun Trigger Plug
5 Voltage Sensing Clamp
6 Gas Cylinder:
75/25 Argon/CO 2 Gas for Short
Circuit Transfer
80% Argon (Or Higher)/CO 2 For
Spray Transfer
7 Gas Hose
Connect work cable to welding generator
Work terminal. Connect cable from wire
feeder to cable from welding generator
Electrode terminal.
Tools Needed:
3/4 in
6
3
2
5
1
4
7
Work