Campbell Hausfeld WG2020 Manual De Instrucciones De Operación Y Partes página 9

Welding Guidelines
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.
Cover
Filler
Root
Figure 12 - Weld Passes
S4
6
Thermal
Breaker
On/Off
S1
4
Switch
Plug
L2(N) L1
White Black
Figure 15 - Wiring Schematic
(Continued)
Figure 13 - Multiple Weld Passes
Heat
Selector
Switch
Max.
S2
X
2
Min.
2
1
S5
1
Ground
Green
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).
T1
-
5
Wire Speed
9
Model WG2020
PULL
PUSH
Figure 14
AC to DC Converter
T2
+
Thermal Breaker
S4
S3
Gun Trigger
-
Wire Feed
H
Motor
+
4 3 2 1
Control
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