Campbell Hausfeld WG2020 - Manual (Page 9)

9
Model WG2020
L1
4 1
6
2
L2(N)
S4
S2
S1
S5
2
1
S3
S4
T2
T1
H
-
-
(-)
(+)
+
5 4 3 2 1
+
X
Figure 15 - Wiring Schematic
Figure 13 - Multiple Weld Passes Figure 12 - Weld Passes
Cover
Filler
Root
PUSH
PULL
Figure 14
All work should be performed in the
flat position if possible. For specific
applications, consult an arc welding
technical manual.
WELD PASSES
Sometimes more then one pass is
necessary to fill the joint. The root pass
is first, followed by filler passes and the
cover pass. If the pieces are thick, it
may be necessary to bevel the edges
that are joined at a 60º angle.
Remember to remove the slag before
each pass for gasless process.
Welding Guidelines (Continued)
PUSH VS PULL TECHNIQUE
The type and thickness of the work piece
dictates which way to point the gun
nozzle. For thin materials (18 gauge and
up) and all aluminum, the nozzle should
point out in front of the weld puddle
and push the puddle across the
workpiece. For thicker steel, the nozzle
should point into the puddle to increase
weld penetration. This is called backhand
or pull technique (See Figure 14).
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Thermal
Breaker
On/Off
Switch
White Black
Green
Ground
Heat
Selector
Switch
Max.
Min.
AC to DC Converter
Thermal Breaker
Gun Trigger
Wire Feed
Motor
Wire Speed
Control
Plug