B.
One-Piece
Drive
Roll
(Figure
4-2
and
4-3)
IMPORTANT:
One-piece
drive
rolls
are
of
the
double
usage
type.
When
the
grooves
become
worn,
reverse
each
drive
roll,
locating
the
unused
groove
in
position
to
feed
the
wire.
1.
Loosen
pressure
adjustment
knobs
and
pivot
them
free
of
the
covers.
2.
Pivot
gear
covers
away
to
expose
pressure
gears.
3.
Loosen
and
remove
the
three
securing
screws
on
each
gear.
4.
Slide
a
drive
roll
onto
each
drive
gear
and
pressure
gear,
align
holes,
and
secure
with
screws.
IMPORTANT:
To
ensure
proper
gripping
action
of
U-
Cog
drive
rolls,
both
rolls
should
be
installed
showing
slots
on
the
side
or
both
should
show
the
side
without
slots.
Also,
it
is
necessary
to
ilne
up
the
blunted
teeth
on
the
pressure
gear
roll
directly
over
the
spaces
between
the
teeth
on
the
drive
roll
(see
Rgure
4-3).
C.
Split
DrIve
Roll
(Figure
4-2)
IMPORTANT:
Split
drive
rolls
are
of
the
double
usage
type.
When
the
knurled
groove
of
the
drive
rolls
be
comes
worn,
the
split
halves
can
be
reversed
so
that
the
unused
edges
provide
a
new
knurled
groove.
1.
Loosen
pressure
adjustment
knobs
and
pivot
them
free
of
the
covers.
2.
Pivot
gear
covers
away
to
expose
pressure
gears.
3.
Loosen
and
remove
the
three
securing
screws
on
each
gear.
4.
Align
holes
on
each
pair
of
split
drive
rolls,
insert
a
securing
screw
and
slide
a
pair
of
drive
rolls
onto
each
drive
gear
and
pressure
gear
keeping
screw
in
line
with
one
of
the
threaded
holes.
Insert
remaining
screws
and
tighten.
Figure
4-3.
U-Cog
Drive
Roll
InstallatIon
4-4.
OUTLET
CABLE
CONNECTIONS
(Figure
4-2)
1.
Loosen
the
outlet
cable
connector
securing
knob.
IMPORTANT:
Wire
guides
should
be
installed
so
that
the
tip
of
the
guide
is
as
close
to
the
drive
roll
as
possible
without
touching.
2.
Insert
the
outlet
cable
connector,
which
includes
the
installed
outlet
guide,
into
the
drive
assembly
oppo
site
the
inlet
guide.
3.
Tighten
the
outlet
cable
connector
securing
knob.
4.
Connect
the
4-pin
plug
from
outlet
cable
to
the
4-socket
receptacle
on
the
motor
mounting
bracket.
4-5.
DRIVE
MOTOR
CONNECTIONS
Make
connections
according
to
instructions
in
the
instal
lation
section
of
robot
Owners
Manual.
SECTION
5
SEQUENCE
OF
OPERATION
5-1.
WELDING
WIRE
THREADING
a
WARNING:
ELECTRIC
SHOCK
can
kill.
WELDING
WIRE
can
cause
puncture
wounds.
Do
not
touch
live
electrical
parts.
Do
not
energize
welding
po
wersource
andro
bot
control
until
instructed
to
do
so.
Do
not
point
gun
to
ward
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
welding.
1.
Connect
the
gun
to
the
drive
motor
assembly.
2.
Install
the
wire
(reel-type
or
spool-type)
as
in
structed
in
the
robot
Owners
Manual.
3.
Loosen
the
knob(s)
on
the
drive
roll
pressure
ad
just
ment(s),
pivot
the
pressure
adjustment(s)
free
of
the
cover(s),
and
pivot
the
pressure
gear
assembly(ies)
away
to
an
open
position.
IMPORTANT:
Spooled
wire
has
a
tendency
to
unravel
when
loosened
from
the
spool.
Maintain
a
firm
grip
on
the
wire
during
the
threading
operation.
Pressure
Drive
Roiis
(Siottod
Side)
Drive
Roiis
(Slotted
Side
Shown)
SA-045
282~B
OM-1580
Page
9
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