Tweco 190 MIG Thermal Arc Fabricator - Manual (Page 42)

FABRICATOR 190 WELDING MACHINE
OPERATION 4-6 Manual No. 0-4838
3. Replace the Gas Diffuser and Insulator.
4. Replace the Contact Tip and Nozzle.
CAUTION
Do not over-tighten the allen screw as this will distort the Wire Conduit and lead to wire feedability problems.
CONDUCTOR TUBE
CONDUIT LINER
CONDUIT LINER
1 1/16"
(27mm)
Art # A-07330
REMOVE
CONSUMABLES
ALLEN SCREW
O-RINGS
ALLEN SCREW
CONNECTOR PLUG
Figure 4-5: Conduit Installation and Trim Length
4.05 MIG Gun Maintenance
Remove dust and metallic particles from the gun conduit by forcing clean, dry compressed air into the conduit once a
week. This will minimize wire feeding problems.