Specifications

a
WARNING:
ELECTRIC
SHOCK
can
kIll;
WELDING
WIRE
can
cause
puncture
wounds.

Do
not
touch
live
electrical
parts.

Do
not
point
gun
toward
any
part
of the
body,
any
conductive
surface,
or
other
personnel
when
threading
welding
wire.
The
welding
wire
and all metal
parts
in
contact
with
it
are
energized
while the
welding
power
source
is
energized.
7. Actuate
jog
switch
or
optional Trigger
Switch,
if
ap
plicable,
to
run
the
wire
out
beyond
the
end of the
contact
tube.
Cut
the
wire
off
so
it sticks
out
approxi
mately
1/2
to
3/4
in.
(13
to 19
mm)
from
the
nozzle
or
hand-held flux
hopper
nozzle,
if
applicable.
8.
Hold end of nozzle
approximately
1
in.
(25
mm)
from
workpi
ece.
9.
Touch
welding
wire
to
workpiece
or
press
optional
Trigger
Switch,
if
applicable,
to start
wire
feed;
an
arc
will
be established.
If
wire
slippage
is
noticed,
tighten
drive
roll
pressure
adjustment
1/4
turn
at
a
time until
slippage
stops.
Do
not
overtighten.
10. After the
controls
on
the
welding
power
source
and
wire feeder
are
adjusted
for normal
operation,
they
will
function
automatically
whenever the
welding
wire
touches
the
workpiece
or
the
optional
Trigger
Switch
is
depressed. Removing
welding
wire
from
workpiece
or
releasing
the
Trigger
Switch,
if
appli
cable,
will
break
the
arc
and
cause
wire feeder
to
stop.
3-3.
SHU111NG DOWN
1.
Stop
welding (remove
wire
from
workpiece).
2.
Turn off
welding
power
source
and
wire
feeder.
SECTION
4-
MAINTENANCE
a
WARNING:
ELECTRIC
SHOCK
~an
kIll.

Do
not
touch
live
electrical
parts.

Shut
down
welding
power
source
and wire
feeder
and disconnect
gun
before
handling
or
replacing
any
gun
parts.

When
not
in
use,
store
the
gun
in
insulated
holder
so
wire
cannot
be
touched
or
make
con
tact
with
metal
surfaces.

Wear
dry
insulated
gloves
or
use
insulated
tools
when
cutting
wire.
HOT
SURFACES
can
cause severe
burns.

Allow
cooling
period
before
servicing.
The
welding
wire
and all
metal
parts
in
contact
with it
are
electrically
hot
whenever
the
wire
feeder is connected
to
an
energized welding
power
supply.
4-1.
INSPECTION
AND
UPKEEP
Usage
and
shop
conditions
will
determine
frequency
and
type
of
maintenance
required.
1.
Inspect
gun
for
broken
area,
cracks
and
loose
parts;
tighten, repair,
and
replace
as
required.
2.
Carefully
remove
any
weld
spatter
or
foreign
matter
which
may
accumulate around the
nozzle orifice.
3.
Remove
any
accumulation
around
the
Trigger
Switch,
if
applicable.
4.
Repair
or
replace
as
required
all
cables;
give
par
ticular attention
to
frayed
and cracked insulation
and
areas
where it
enters
equipment.
5.
Remove
grease
and
grime
from
components;
mois
ture
from electrical
parts
and
cables.
4-2.
CONTACT
TUBE
REPLACEMENT
(FIgure
2-1)
1.
Remove
nozzle.
2.
Cut
off
any
portion
of the
electrode wire which
ex
tends
beyond
end
of
contact
tube.
3.
Remove
contact
tube and
replace
with
new
contact
tube.
4.
Replace
nozzle
and
resume
operation.
4-3.
CHANGING
WIRE
SIZES
(FIgure
2-1)
a
WARNING:
ELECTRIC
SHOCK
can
kill.

Do
not touch
live
electrical
parts.

Shut
down
welding
power
source
and
discon
nect
input
power
employing
lockout/tagging
procedures
before
installing
gun.
Lockout/tagging
procedures
consist
of
pad
locking
line
disconnect
switch
in
open
position,
removing
fuses
from
fuse
box,
or
shutting
off
and
red-tagging
circuit
breaker
or
other
discon
necting
device.

Disconnect
gun
from
feederbe
fore
inspecting
or
servicing.
Each
time the size
of
the
electrode wire
is
changed,
it is
necessary
to
change
the
contact
tube.
IMPORTANT:
The
contact
tube
has
right-hand
threads.
When
changing
to
1/16, .068/.072,
or
5/64
in.
(1.6,
1.8,
or
2.0
mm)
wire
from
any
other
size,
it
is
necessary
to
change
the monocoil
liner,
the outlet
wire
guide,
and
add
a
rear
centenng
sleeve
(see
parts
list).
When
changing
from
1/16,
.0681.072,
or
5/64
in.
(1.6,
1.8,
or
2.0
mm)
wire
to
any
other
size,
it
is
necessary
to
OM-1532
Page
4