Typical Mig Connections And Settings Using Weld Control And Spoolgun - Miller Bobcat 250 Owner's Manual

6-6.

Typical MIG Connections And Settings Using Weld Control And Spoolgun

2
3/4 in.
�
wrench
crescent wrench
This section provides general guide-
lines and may not suit all applications.
1 Weld Control
2 Spoolgun
3 Optional Contactor (Recommended)
4 Reed Switch
5 Weld Cable (Customer Supplied)
nutdriver
6 Weld Control Weld Terminal
chippinghammer
7 Weld Power Cable From Spoolgun
8 Work Clamp
9 Gas Hose
10 Argon Cylinder
11 Trigger Control Cord
12 Input Power Cord
13 Unused Contactor Terminal
wirecutter frontcutter
14 Work
15 Plug And Sensing Lead (Not Used In
This Application)
OM-249336 Page 34
�
Complete Parts List is available at www.MillerWelds.com
Complete Parts List available at www.MillerWelds.com
3
6
4 5 7
9
8
14
6
1
11
�
Be sure to use the correct size weld
cables (see Section 5-9).
Route weld cable from welder/generator
Electrode terminal through reed switch to
unused contactor terminal. Connect weld
cable from spoolgun to weld control weld
terminal (item 6).
Connect work cable to welder/generator
Work terminal.
Insert trigger control plug (item 11) into weld
control receptacle. Tighten threaded collar.
Connect AC power cord (item 12) to 120 volt
AC receptacle on welder/generator.
Connect gas hose from spoolgun to regula-
tor on Argon bottle.
Reinstall weld control wrapper.
10
13
12
5
15
250916-A / 802750-B / 250290-C
Typical Settings For 4043 (.035) Alumi-
num On 1/8 in. Material:
� Set Weld Process Selector switch to
Wire + (DCEP) position.
� Set Coarse Range switch to Wire (17-
22 volts) Range position.
� Set Fine Control to desired voltage (arc
length). Start with a low voltage setting
(about 4) to prevent burnback.
� Set wire feed speed between 240- 270
IPM. For 1/4 in. and thicker materials,
set Coarse Range switch to Wire/High
and Fine Control to 6. Increase/de-
crease Fine Control setting to increase/
decrease arc length.
�
OM-249336 Page 7
Miller recommends
metals.
Hobart filler