Miller Electric SuitCase X-TREME 12VS, Owner'S Manual

Page: 23 / 44

OM-252 203 Page 19
5-7. Installing And Threading Welding Wire
256 622-A
Installing Wire And Adjusting Hub
Tension:
1 Retaining Nut
2 Hub Tension Adjustment Knob
Remove retaining nut, and install spool
so hub pin fits spool hole. Reinstall re-
taining nut.
Adjust tension knob so only a slight
force is needed to turn spool.
Do not over tighten tension knob. It
is not necessary to use any tools to
tighten the knob.
Threading Welding Wire:
3 Pressure Adjustment Knob
Lay gun cable out straight.
Open pressure assembly. Hold wire
tightly and cut off end. Guide wire
between alignment pins, into drive roll
grooves, and into gun liner.
Close pressure assembly and tighten
pressure adjustment knob enough to
feed wire. Press jog switch until wire
comes out of gun.
To set proper drive roll pressure, re-
lease the pressure on the drive rolls by
loosening the pressure adjustment
knob. Position gun at about a 45 degree
angle, with nozzle about two inches
from a wooden surface. While feeding
the wire against the wooden surface,
increase the pressure to one half turn
past the point where the wire stops slip-
ping. If the wire slips at maximum
hand-tight pressure, there may be other
problems. Check the gun liner, spool
tension, contact tip and drive roll wear,
as all these can cause wire feeding
problems.
Cut off wire, and close door.
Pull and hold wire; cut off end.
6 in.
(150 mm)
1
2
3
WOOD
Tighten
Clockwise
Hold wire tightly to keep it
from unraveling.
5-8. Motor Control Board (PC1) DIP Switch Settings
247 678-B
1 Motor Control Board (PC1)
2 DIP Switch SW1
3 LED5
DIP switch SW1 is used to match the
performance of PC1 to the character-
istics of the motor used in the feeder.
Setting SW1 as shown will help
ensure that PC1 and motor are
matched for optimal performance.
If protective coating is present, remove
before setting DIP switch. It is not neces-
sary to reapply the protective coating.
Set switch positions 1 and 2 so the de-
pressed section of both tabs are toward 1
and 2 as labeled on the switch. As shown
in illustration.
When feeder is powered up, LED 5 on the
Motor Control Board (PC1) will blink four
times. This blinking indicates everything
is working properly and the DIP switch is
set correctly.
After LED 5 is done blinking, it will be
either red or green. Red indicates that the
feeder is connected with electrode posit-
ive. Green indicates feeder is connected
with electrode negative.
1 2
OP EN
RC111
3
2
1