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clamp witha pliers, slide it up the gas hose, and
release clamp when it is positioned on a portion
of the hose that is over the brass fitting. '
SPRING CLAMP
HOSE
7. Locate the remaining brass barbed fitting (male
threaded)
in the parts bag and thread the fitting
into the gas solenoid port located in the rear of
the
welder
(see
illustration
below)
BEING
CAREFUL
TO PREVENT
CROSS
THREAD-
ING. Turn the fitting into the solenoid port WITH
YOUR FINGERS
ONLY until you can't turn any
more. Then, use a wrench to tighten it securely
- do not overtighten.
8. Slide the remaining
hose clamp about 3" up the
end of the gas hose opposite
the regulator. Then
push the hose onto the barbed fitting installed
in
step #7 above and clamp into place.
CHECKING
GAS FLOW
IMPROPER
HANDLING
AND
MAINTENANCE
OF
COMPRESSED
GAS
CYLINDERS
AND
REGULATORS
CAN
RESULT
IN SERIOUS
IN-
JURY
AND
DEATH!
To reduce
risk of injury or
death,
always stand to the side of the cylinder
opposite the regulator when opening the cylinder
valve, keeping the cylinder valve between you and
the regulator.
1. Slowly crack open the cylinder
valve, then turn
open ALL THE WAY!
2. Turn
POWER
SWITCH
on the front
of the
welder to either the LOW or HIGH position.
ASSEMBLY AND INSTALLATION
Page 11
3. Pull the trigger
on the gun to allow the gas to
flow. KEEP PULLED.
Listen for gas to flow from
the end of the welding gun. If no gas is heard or
felt, check all previous steps in connecting the
gas.
4. Release
the trigger.
Your gas regulator
has been factory set for delivery
of 20 Cubic
Feet
Per Hour
of shielding
gas. If
welding outside
or in a draft, it may become
nec-
essary to set up a windbreak
to keep the shielding
gas from being blown from the weld area.
MAKE
SURE TO TURN
OFF THE GAS CYUN-
DER VALVE WHEN
DONE WELDING.
SELECT WELDING
CURRENT
POLARITY
This
welder
comes
factory
set for DC Positive
Polarity
operation.
This polarity
is required
when
using gas-shielded
steel welding
wires.
If you wish to use self-shielding
flux-core
wire, it
will be necessary
to set the welder for DC Negative
Polarity operation.
To do this, refer to on sticker on
the inside of hood.
SELECT THE WELDING
WIRE
Selecting
the Type of Wire
It is very important
to select a type of wire that is
compatible with the metal to be welded (base met-
al). If the wire is incompatible with the base metal,
the quality of important
characteristics
such as
penetration and strength may be sacrificed.
The welding wires recommended
for most of the
mild
and low carbon
steel
applications
you will
have are AWS classification
numbers
E70S-3 and
E70S-6.
These two wires are very similar, but the
E70S-6 tends to work a little better on moderately
dirty steel and on sheet metal where smooth
weld
beads
are required.
These
differences
are very
subtle,
so in most applications,
either wire is ac-
ceptable.
Self-shielding,
flux-core,
steel wire is used primar-
ily for welding mild steel without the use of a shield-
ing gas. It is especially
good to use when welding
needs
to take place in windy
environment.
How-
ever, it produces
more spatter than solid wire gas-
shielded
welding
and leaves a slag on top of the
weld that needs to be chipped
off. Our recommen-
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