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a. With one hand, turn the wire spool and con-
tinue turning it while adjusting the tension.
b. With your free hand, tighten (turn clockwise)
the wing-nut.
c. Stop tightening
when drag is felt on the wire
spool that you are tuming,
then stop hand
turning the wire spool.
NOTE: If TOO MUCH tension is applied,
the wire
will slip on the drive roller or will not be able to be
fed at all. If TOO
LITTLE
tension is applied, the
spool of wire will want to unspool itself. Readjust
the drive brake tenion as necessary to correct for
either of these problems.
11. After checking
to make sure that your welder is
disconnected
from the AC power source, free
the leading-end of the wire from the spool, but
do not let go of it until told to do so, or the wire
will unspool itself.
t2. Using a wire cutter, cut the bent end off the
leading-end
of the wire so that only a straight
leading-end
remains.
13. Hold the tension arm up off the drive roller and
insert the leading-end
of the wire into the inlet
guide tube. Then push it across the drive roller
and into the gun assembly about six inches.
14. Line the wire up in the outside
groove
of the
drive roller, then allow the drive tension arm to
drop onto the drive roller.
15. Tighten (turn clockwise) the tension
adjusting
screw until the tension roller is applying
enough
force on the wire to prevent it from slipping
out
of the drive assembly.
NOW YOU CAN
LET
GO OF THE WIRE.
16. Plug the welder's powercord
into the AC power
source, turn the POWER
SWITCH
on the front
of the welder to either HIGH or LOW, and set
the WIRE SPEED
control to the middle of the
wire speed range.
17. Pull the trigger on the welding gun to feed the
wire through
the gun assembly.
ARC FLASH CAN INJURE
EYES!
To reduce the
risk of arc flash, make certain that the welding wire,
when it finally comes out of the endof the gun, does
not touch the ground calmp or any grounded piece
of metal. IMPORATANT!
The welding wire is car-
ASSEMBLY AND INSTALLATION
Page,_15_
rying welding current whenever the welder, is,
turned
on --
WHETHER
THE TRIGGER
i_
PULLED OR NOT!
18. When at least and inch of wire sticks out past
the end of the gun, release the trigger.
19. Select a contact tip stamped with the same wire
diameter as the diameter of the wire being
used. If stamped in metric, use the cross-refer-
ence chart below.
U.S:Tip
Size
Metric Tip Size
.....
.024"
.030"
.035"
.6mm
.8mm
.gmm
20.
21.
22.
Slide the contact tip over the wire (protruding
from the end of the gun), thread it into the end
of the gun, and hand tighten securely.
Install the nozzle on the end of the gun assem-
bly, then coat the inside
of the nozzle
with
anti-stick spray or gel (not supplied).
Cut off excess wire that extends past the end
of the nozzle.
23. Set the wire drive tension.
ARC FLASH CAN INJURE EYES! To reduce risk
of arc flash, make certain that the wire coming out
of the end of the gun does not come in contact with
the ground clamp or any grounded material during
the drive tension setting process or arcing will
occu r.
a. Pull the trigger on the gun.
b. Turn
the
drive
tension
adjustment
knob
clockwise
(to the right), increasing the drive
tension
until
the
wire
seems
to
feed
smoothly
without
slipping.
c. Block the end of the nozzle by holding it up
against
something
that
doesn't
conduct
electricity,
such
as a block
of wood
or a
concreate
floor, then trigger
the gun again.
The wire should slip at the drive roller. How-
ever, if the bird-nests
at the drive roller, re-
thread
the drive
system
using
less drive
tension
and try again.
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