AUTO ARC 120 - WIRE SPOOL INSTALLATION AND HUB TENSION

5-4.
Installing
Wire
Spool
And
Adjusting
Hub
Tension
READ
SAFETY
BLOCKS
at start
of
Section
5
before
proceeding.
9/l6in
Ret.
ST-151
357/5-0499
Figure
5-4.
Installing
Wire
And
Adjusting
Tension
NOTE ~
If
hub
tension
is
too
tight,
motor
fuse
Fican
open
(see
Section
5-2).
If
hub
tension is
too
loose,
wire unravels and
can
become
tangled
inside
unit.
5
Turn Off
and
unplug
unit.
1
Wire
Spool
2
Gun
Contact Tube
If
necessary,
cut
welding
wire
off
at
contact
tube,
and
retract
wire
onto
spool
and
secure.
3
Retaining
Pin
Remove
pin
and
pull
off
spool.
4
Hub
3
5
HubPin
Slide
spool
onto
hub
so
wire
feeds
off
bottom.
Turn
spool
until
hub
pin
fits
hole in
back
of
spool.
Push
retaining
pin
through
hub.
6 Hub Tension
Nut
Grasp
spool
in
one
hand and
turn
while
using
a
wrench
to
adjust
hub
tension
nut.
When
a
slight
force
is
needed
to turn
Spool,
tension is
set.
Close
and
secure
pressure
roll
assembly.
Thread
welding
wire
(see
Section
3-4).
Close
door.
6
Tools Needed:
OM.151
015
Page
12