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Item 63621
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Setting Up The Weld
clamps
workpieces
chamfer thick workpieces.
clean surfaces
to bare metal.
1.
Make practice welds on pieces of scrap the
same thickness as your intended workpiece
to practice technique before welding anything
of value.
Clean the weld surfaces thoroughly
with a wire brush or angle grinder; there
must be no rust, paint, oil, or other materials
on the weld surfaces, only bare metal.
2. Use clamps (not included) to hold the workpieces
in position so that you can concentrate on proper
welding technique. The distance (if any) between the
two workpieces must be controlled properly to allow
the weld to hold both sides securely while allowing
the weld to penetrate fully into the joint. The edges
of thicker workpieces may need to be chamfered
(or beveled) to allow proper weld penetration.
Notice:
When welding equipment on a vehicle,
disconnect the vehicle battery power from both the
positive connection and the ground before welding.
This prevents damage to some vehicle electrical
systems and electronics due to the high voltage
and high frequency bursts common in welding.
3. Clamp Ground Cable to bare metal on the
workpiece near the weld area, or to metal work
bench where the workpiece is clamped.
ground connection depends
on desired welding polarity
Workpiece
ground
clamp
clean
surface to
bare metal.
Duty Cycle (Duration of Use)
Avoid damage to the Welder by not welding for more
than the prescribed duty cycle time.
The Duty Cycle
defines the number of minutes, within a 10 minute
period, during which a given welder can produce a
particular welding current without overheating.
For example, a welder with a 40% duty cycle at
100 A welding current must be allowed to rest for at least
6 minutes after every 4 minutes of continuous welding.
Failure to carefully observe duty cycle limitations
can easily over-stress a welder’s power generation
system contributing to premature welder failure.
This Welder has an internal thermal protection system
to help prevent this sort of over-stress. When the
Welder overheats, it automatically shuts down and a
warning screen appears in the LCD Display window.
The Welder automatically returns to service after
cooling off. Should this occur, rest the MIG Gun on an
electrically non-conductive, heat-proof surface, such
as a concrete slab, well clear of the ground clamp.
Allow the Welder to cool with the power Switch on,
so that the internal Fan will help cool the Welder.
When normal operation resumes, use shorter welding
periods and longer rest periods to prevent needless wear.
100% continuous Use at 115
A
25% Use at 200 A
For 10 continuous Minutes
2-1/2
Minutes
Welding
7-1/2
Minutes
Resting
100% continuous Use at 75
A
40% Use at 100 A
For 10 continuous Minutes
4
Minutes
Welding
6
Minutes
Resting