18
WELDING TECHNIQUES
A
ARC WELDING
Arc welding cables are supplied with this machine.
The kit comprises all necessary cables, plus a
hand shield and wire brush with chipping pick.
To prepare the unit for ARC welding, it is
important that you follow the procedure below.
1.
With the ON/OFF switch, located on the rear
panel, in the OFF position, connect the
welding leads as follows:
Welding Electrode lead to the +ve terminal.
Work Clamp lead to the -ve terminal.
2.
Attach the work clamp to the workpiece - as
close as possible to the area being welded.
Clean with a wire brush where necessary to
ensure the connection is as clean as
possible.
3.
An appropriate current must then be set by
turning the Welding Current Selector located
on the front panel of the machine. With
practice you will gain a feel for the correct
current setting for different welding rod
thicknesses.
The size (diameter) of welding rod should be
approximately the same as the thickness of
metal to be welded.
For beginners, the following table gives some useful guidelines.
SIZE OF WELDING
THICKNESS OF
CURRENT SETTING
ROD
WORKPIECE
(AMPS)
1.5mm
16 SWG - 1.5 MM
30 - 40
2.0mm
14 SWG - 2.0 MM
50 - 65
2.5mm
12 SWG - 2.5 MM
70 - 100
3.0mm
10 SWG - 3.25MM
100 - 130
4.
Switch ON using the switch located on the rear panel. The green light on the front panel
should glow, indicating the machine is ON.
Fig. 1
Summary of Contents for Arc/Tig135
Page 1: ...OPERATING MAINTENANCE INSTRUCTIONS Model No Arc Tig135 PART NO 6010790 0612 ARC TIG WELDER...
Page 24: ...24 PARTS DIAGRAM...
Page 26: ...26 WIRING DIAGRAM...
Page 28: ......
