Tweco 181i Thermal Arc Fabricator - Manual (Page 47)

Fabricator 181i
Manual 0-51 91 3-17 INSTALLATION, OPERATION AND SETUP
Art # A-10358
Spring
Nut with
Nylon Insert
8” (200mm)
diameter spool
Spool Hub Nut
Alignment pin
Brass Flat
Washer
Wire Spool Hub
Friction
Washer
Plastic Spacer
Flat Washer
Alternate
Alignment Pin
Position
Figure 3-10: 8" (200mm) Diameter Spool Installation
3.15 Inserting Wire into the Wire Feed Mechanism
Release the tension from the Pressure Roller Arm by turning the adjustable Wire Drive Tension Screw in an
counterclockwise. Then to release the pressure roller arm push the tension screw toward the front of the machine
which releases the pressure roller arm (Figure 3-11). With the MIG welding wire feeding from the bottom of the
spool (Figure 3-12) pass the electrode wire through the inlet guide, between the rollers, through the outlet guide
and into the MIG Gun.
Re-secure the pressure roller arm and wire drive tension screw and adjust the pressure accordingly (Figure 3-11).
Remove the contact tip from the MIG Gun. With the MIG Gun lead reasonably straight, feed the wire through the
MIG Gun by depressing the trigger switch. Fit the appropriate Velocity contact tip.
WARNING
Before connecting the work clamp to the work make sure the Electricity Supply is switched OFF.
The electrode wire will be at welding voltage potential while it is being fed through the system.
Keep MIG Gun away from eyes and face.