Tweco 180 Portable MIG - Manual (Page 35)

INSTALLATION FABRICATOR 140, 180
July 20, 2007 3-11 Manual 0-4991
3.12 Install Wire into the Welding Gun
1. Plug the Welding Power Source into the 120VAC
receptacle for the Fabricator 140, and into the 230VAC
receptacle for the Fabricator 180.
!
WARNING
ELECTRIC SHOCK CAN KILL! With the gun
switch (located on the gun) activated, welding
power is applied to the output terminals,
feedroll, ground clamp, gun cable connection
and welding wire. Do not touch these parts
with the gun switch activated.
2. Turn the welding machine ON with the front panel
Voltage Control Switch set to "1".
0
1
2
3
4
5
6
OFF
Figure 3--13: Power ON
3. Set the wire feed speed to half-way or "5".
Figure 3-14: Wire Speed Half-way
4. Straighten the gun cable. Remove the nozzle and
contact tip from the MIG welding gun (see Section
2.08).
!
WARNING
If ground connection clamp is in place on the
workpiece the electrode wire is electrically
“hot” when the gun switch is activated.
5. Activate the gun switch until the wire feeds out past
the gun nozzle.
Contact Tip
Nozzle
Gun Switch
Wire
Figure 3-15: Feed Wire Through Gun
6. Deactivate the gun switch and replace the contact tip
and nozzle. Cut the wire within ¼” (6mm) from the
nozzle.
7. Set the Voltage Control Switch to "0 / OFF" and unplug
the supply cord.