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3.
Install the wire
onto
the reel
(11)
over
the four
fingers
(10).
Ensure that the wire
feeds
off the bottom of the reel
(11).
The reel
(11)
turns
in
.a
counterclockwise direction.
4.
Rotate the four
fingers (10)
back
to
their proper
position.
Tighten
the
four
wing
nuts
(9).
2-15.
ADJUSTING HUB TENSION
(Figure
2-6)
Check hub tension
by slowly
pulling
wire toward the
feed
roll. The wire should unwind
freely,
but the hub tension
should
be
sufficient
to
keep
the
wire
taut
and prevent
backlash when the
control/feeder
is shut off. If
adjustment
is
required,
loosen
or
tighten
the hex
nut
(3)
on
the end of the
spindle
support shaft
(15) accordingly.
2-16. WELDING WIRE THREADING
1.
Connect the
gun
to
the
control/feeder
according
to
the instructions in the gun Instruction Manual.
2.
Loosen the
wing
nut
on
each of the drive roll
pressure
adjustments, pivot adjustments
downward,
and lift the
pressure
gear
covers
upward.
3.
Cut off
any
portion
of the free end of the
welding
wire which
is
not
straight.
Feed the
welding
wire
through
the inlet wire
guide
in the drive roll
assembly.
4.
Continue
to
feed
the
welding
wire
through
the
intermediate and outlet wire
guides.
5.
Pivot the
pressure
gear
covers
downward
making
sure
the teeth
on
the upper gears mesh with lower drive
gears. The
welding
wire
must
also be
in the
grooves of
the
upper
and lower drive rolls.
6.
Pivot the
drive roll pressure
adjustments upward
into
the slot
on
the pressure gear
covers
making
sure
the
-
lower flat washer is above the
pressure gear
cover.
7.
Turn the
wing
nuts
on
the drive roll pressure
covers
in
a
clockwise direction until the drive rolls
are
tight
against
the
welding
wire. Do
not
overtighten.
Further
adjustment
can
be
made after
the
welding
power
source
and
control/feeder
are
put
into
operation.
8.
Energize
the
welding
power
source.
9.
Place the
control/feeder
POWER switch
in the
ON
position.
10.
Depress
the INCH switch. This will
run
the
welding
wire
through
the gun without
placing
weld
current
on
the
welding
wire. Release the INCH switch after the
end of the
welding
wire extends
approximately
one
inch from the end
of
the gun
tip.
Remote Control Switch
Remote
Control
Receptacle.
Switch Control
Receptacle.
Pressure
Adjustment
Wing
Nuts
3-1. POWER
SWITCH
(Figure
3-1)
SECTION 3.~.FUNCTION OF
CONTROLS
Figure
3-1.
Control/Feeder Components
Placing
the
POWER
switch
on
the
control/feeder
in the ON
TC-080 649
position
will
apply
115 volts
ac
to
the unit and
thereby place
it in
an
operational
condition.
Placing
the POWER switch in
the OFF
position
will shut the
control/feeder
down.
Start
Optlonal
Water
(Coolant) Output Flttlng*
Wire
Speed
Cou
Circuit Breaker
Switch
Cable Terminal
V
Page
4
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