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IMPORTANT:
The standard
contact tube
adapter
al
lows 3/16 in.
(4.76mm)
recess
of the contact tube in
the
nozzle. This is
normally
used for spray transfer Gas Me
tal-Arc
Welding (GMAW).
An
optional
contact
tube is
available that allows the contact tube
to
be flush with the
nozzle. This is
normally
used for short
circuiting
GMA
W.
1.
Remove nozzle and insulator. A
slight
twist clock
wise aids removal and installation.
2.
Cut off any
portion
of electrode wire which extends
beyond
end of
contact
tube.
a
CAUTION:
LOOSE WELDING
WIRE
can
cause
injury.
S
Keep
a
firm
hold
on
the wire
during
installa
tion, removal,
and
threading operations.
Spooled
wire has
tendency
to
unravel
rapidly
when
loosened from the
spool.
3.
Manually
retract wire onto wire
spool (see
wire
feeder Owners
Manual).
4.
Remove
contact
tube and
contact tube
adapter.
5.
Disconnect gun
assembly
from wire
feeder,
if
appli
cable,
and
lay
it out
flat
(no
coils in
cable/conduit).
6.
Remove outlet
guide.
7.
Pull out monocoil liner from
gun/feeder
connector
end of
gun
assembly.
a
CAUTION: FLYING
DIRT AND METAL PARTI
CLES
can
Injure personnel
and
damage
equipment.
Point
gun liner
only
in
a
safe direction away
from
personnel
and
equipment
when
cleaning
with
compressed
air.
8.
Clean gun
casing
or
liner with
compressed
air while
liner
or
welding
wire is removed.
9.
For monocoil liner:
a.
Thread collet
onto
liner until 3/4
in.
(19 mm)
of
the liner sticks
out of the collet.
b.
Install
new
liner and reinstall wire
guide (chang
ing
size if
applicable).
Liner should stick
Out
of
the
guide approximately
1/16 in.
(1.6 mm).
c.
Cut
liner off flush with
contact
tube
adapter.
d.
Remove wire
guide
and liner.
e.
Cut
an
additional
1/4
in.
(6.4 mm)
from the liner.
f.
Reinstall liner and wire
guide.
10. For Teflon liner:
a.
Thread collet
onto
liner until 3/4
in.
(19 mm)
of
the liner sticks out of the collet.
b.
Install
new
liner and reinstall wire
guide (chang
ing
size if
applicable).
Liner should stick
out
of
the
guide approximately
1/16 in.
(1.6 mm).
c.
Cut liner off flush with
contact
tube
adapter.
d.
Remove wire
guide
and liner.
e.
Cut
an
additional
1/4 in.
(6.4 mm)from
the liner.
t.
Reinstall liner and wire
guide.
11.
Install
appropriate
size
contact
tube for
new
wire.
12.
Reinstall insulator and nozzle.
Table 5-1. Wire Size Parts
Wire Size
Conversions
0.9
mm
0.035 in.
0.035
in
1.1
mm
0.045
in.
0.045
in.
1.3
mm
0.052 in.
0.052 in.
1.6mm
0.062
in.
1/16 in.
2mm
0.078
in.
5/64
in.
2.4
mm
0.093
in.
3/32 in.
Wife
Type
~1LT f
-~
I
~
J
~
Wire Size
0.035 in.
0.045 in.
0.052 in.
1/16
in.
5/64 in.
3/32 in.
0.035 in.
contact
tube
0.045 in. contacttube
0.052
in. contact tube
1/l6in.contacttube
5/64
in. contact tube
3/32 in. contact
tube
0.035
-
0.045
in. monocoil liner
0.052
-
1/16 in. monocoil
liner
5/64
-
3/32 in. monocoil liner
0.035
-
0.045
in. Teflon liner
1/16 in. Teflon liner
0.035
-
1/16 in.
wire
guide
5/64-3/32
in. wire
guide
0.035
-
1/16 in. wire
guide
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
*
lOft. guns
only
OM-1541
Page
5
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