Section 5: Replacement Instructions; Replacing Velocity Contact Tip; Replace Conductor Tube - Tweco FUSION 250 Manual De Instrucciones

SECTION 5: REPLACEMENT INSTRUCTIONS

5.01

REPLACING VELOCITY CONTACT TIP

While nozzle and contact tip are removed, maintain an adequate distance of the
wire from metal objects to avoid burnbacks to conduit or conductor tube.
1. Remove worn nozzle and tip. (Clean nozzle if reusing.)
2. Slide new contact tip over
the conduit end and into the
conductor tube end.
3. Replace the nozzle. Hand tighten
(Nozzle secures tip).
NOTE
For proper operation the
nozzle MUST be tight.
4. Trim wire to desired stick out.
The MIG gun is now ready operation.
5.02

REPLACE CONDUCTOR TUBE

The conductor tube is attached to the Tweco
the handle. To remove:
1. Remove the front end consumables from the conductor tube.
2. Loosen the conduit liner set screw with a 5/64" Allen wrench (supplied) and then
loosen the socket head cap screw securing the conductor tube in place inside the
handle with a 5/32" Allen wrench.
3. Remove conductor tube.
4. Slide the new tube over the liner and insert into the brass connection within the handle.
Confirm the tube is correctly aligned with the MIG Gun handle and wrench tighten the
socket head cap screw.
5. Tighten the conduit set screw down against the liner. Do not overtighten to avoid
damaging the liner.
6. Re-assemble the front end consumables.
The MIG gun is now ready for operation.
89200015
SAFETY AND OPERATING INSTRUCTIONS
All manuals and user guides at all-guides.com
CAUTION
Fusion handle by two set screws on the side of
®
11