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Snap-On TIG 150i - TIG Welding Introduction

Snap-On TIG 150i
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11
TIG WELDING – GENERAL
aluminum, aluminum alloys, brass and magnesium, while
stainless steel, iron and copper.
1. Connect the earth (work) cable connector to the
positive pole (+) (AC) of the welding machine, and
the clamp to the work piece as close as possible to
the welding point, making sure there is good
electrical contact.
2. Connect the power connector of the TIG torch to the
negative pole (-) (AB) of the welding machine.
3. Connect the foot pedal or on/off switch control plug
to the welding machine connector AE.
4. Connect the torch gas hose fitting to the gas outlet
fitting AD on the machine, and the gas hose from
the cylinder pressure regulator to the gas fitting AG
on the rear panel.
AF – switch
Turns the machine on and off.
0 = Off l = On
AG - gas inlet fitting
DANGER
Do not touch
live
parts and output terminals while the
machi
ne
is
power
ed.
Read complete listing of safety messages at the beginning
of this manual.
1. The first time the machine is turned on, select the
pr
ocess
and mode using the push-buttons A and E ,
and the
welding
parameters by means of the key P and
the knob AA .
2. The type and diameter of the electrode to be used must
be
selected according to table A:
TABLE A
Inches/mm
DC
AC
(frequency 50/60
Hz)
Pos. Max Penetration
Pos. Balanced zero
Pos. Max Cleaning
Electrode
T
y
pe
.
T
ungsten
Thorium
2%
Red
T
ungsten
Pur
e
G
r
een
T
ungsten
Zr
0,8%
White
T
ungsten
Pur
e
Gr
een
T
ungsten
Zr
0,8%
White
T
ungsten
Pur
e
Gr
een
T
ungsten
Zr
0,8%
White
1/16in 1.6mm
70A150A
50A100A
70A150A
30A60A
50A80A
20A40A
30A60A
3/32in 2.4mm
150A250A
100A160A
140A235A
60A120A
80A140A
40A100A
60A120A
1/8in 3.2mm
200A350A
150A210A
225A325A
80A160A
100A180A
60A140A
80A160A
5/32in 4mm
300A400A
200A275A
300A400A
100A240A
150A280A
80A200A
150A250A
TIG WELDING - INTRODUCTION
AF
AG
By selecting
the
TIG AC
welding mode
you may weld
selecting TIG DC allows you to weld steels,

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