B-3
Weld-Pak 125 MACHINE
Alloy:
Wire Size:
0.030
Speed
Voltage
Weldment
Tap
Thickness
22 ga
2.5
A
20 ga
2.5
B
18 ga
4.5
C
16 ga
5
D
14 ga
6
E
12 ga
7
E
10 ga
N/A
N/A
3/16 in.
N/A
N/A
After choosing the proper welding wire for your appli-
cation, load the aluminum wire, connect the gun and
cable to the welding machine. (See Installation
Section).
WELDING PROCEDURES
1. Read
and
understand
Precautions located throughout this manual and the
Welding Machine's Instruction Manual. Also for help-
ful hints in welding see (LTW1) the Learn to Weld
manual which is supplied with the welding machine.
2. Obtain and use the proper personal protective
equipment for welding. Connect the WORK (welding
ground) cable(-) to piece(s) being welded. Make
sure gas hose from cylinder's regulator is connected
to welder's gas INLET. Open cylinder's gas valve.
3. Connect input power to the machine.
4. Turn the machine's power switch to "on". Set wire
speed and voltage tap settings to tables which are
provided in the beginning of this section.
5. Flip toggle selector switch inside of machine to
"Magnum 100SG" position. Press and hold trigger
for about 5 seconds to purge hose. Be sure the Gas
flow rate is set to 20 to 50 SCFH thru the spool gun.
6. Cut off the aluminum wire so that it extends about
1/4 inches from the contact tip.
OPERATION
5356
0.035
Speed
Voltage
Tap
2
A
B
2
4
C
4.5
D
E
5
5.5
E
N/A
N/A
N/A
N/A
Arc
Welding
Safety
MAGNUM 100SG SPOOL GUN
7. CTWD (Contact Tip to Work Distance): Position the
gun so that the contact tip is nominally 3/8 inches
from the joint and tilted with a push angle toward it.
The aluminum wire should not contact the work-
piece. (See figure B.1)
FIGURE B.1
8. Protect the eyes and pull the trigger to begin weld-
ing.
9. Adjust the hand travel speed of the gun to achieve a
proper weld. The emerging wire should stay within
the molten puddle and not overrun it. This speed
also should not be so slow that either the workpiece
excessively melts, or the weld bead becomes exces-
sively large.
10. Release the trigger to stop welding.
B-3