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H8155 MIG Welder
-11-
NOTICE
Remember to switch to positive electrode
polarity when using gas instead of flux core
wire. Follow the instructions on the diagram
below the wire feed mechanism to preform
this simple modification. Failure to follow
this procedure can result in poor quality
welds.
9. Press and hold the torch trigger switch and
stroke the area to be welded with the elec
-
trode wire to ignite the arc.
10. Once the arc is ignited, move the torch to
complete the weld.
11. When the weld is complete, lift the welding
torch handle electrode wire clearly away
from any grounded object, remove your face
shield, and inspect the weld
12. When the welder has cooled, set the ON/OFF
switch to the
OFF position and Disconnect
the welder from power.
1. Start with ON/OFF switch in the OFF position
and with the welder unplugged.
2. If using non-flux core wire, connect and
secure the Argon/CO
2 gas hose to the rear of
the welder. If using flux core wire, protective
gas is not required.
3. Attach the work clamp as close as possible
to the workpeice, or to the metal work bench
where the workpiece is mounted and electri
-
cally connected.
4. Set the desired welding current for the type
of metal being welded, using the Min/Max
switch and the 1/2 power level switch.
Figure
5 shows the resulting current for each combi-
nation of Min/Max and 1/2 switch positions.
Figure 5. Operation power chart.
O
u
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p
u
t
C
u
r
r
e
n
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D
u
t
y
C
y
c
l
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V
o
l
t
a
g
e
M
a
x
O
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t
p
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V
o
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t
a
g
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M
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n
1 100% 15.2V 28VDC
2 92% 15.7V 28VDC
M
a
x
1 45% 16.5V 28VDC
2 20% 17.7V 28VDC
5. Verify that the ON/OFF switch is in the Off
position, then plug the welder into a dedi
-
cated, 110VAC, grounded circuit.
6. While holding the torch, with the electrode
clearly out of the way of any grounded
objects, set the ON/OFF switch to the
ON
position.
7. Momentarily press the welding torch trigger
switch to test the wire output speed. Adjust
the speed with the wire speed control.
8. Orient yourself with the area to be welded,
then hold the welder's mask up to your face.
NOTICE
Always keep the power ON to the welder
after completing the welding operation to
let the welder fan cool the welder down.
To
avoid damage to your welder, never shut
the power
OFF before the welder enclosure
is completely cool to the touch.