Tweco FP-160 - Manual (Page 21)

FP-200 WIRE LINER REPLACEMENT
To remove the wire liner:
1. Lay the MIG gun out on a table or on the floor in a straight line. Make sure the gun is fully extended and all
twists in the cable are removed.
2. Remove the nozzle, diffuser, contact tip and the left gun handle case.
3. Unscrew the wire liner stop from the rear connector plug.
4. Remove the wire liner with a twisting motion.
To install the wire liner:
1. Uncoil the conduit and lay it in a straight line. Insert the wire liner into the rear connector plug. Push the
wire liner into the gun with short strokes. If the wire liner hangs up, twist the wire liner counterclockwise or
gently whip the cable while applying pressure to the wire liner.
2. When the wire liner clears the cable into the handle - guide the wire liner along the valve body and into the
conductor tube. Continue to install the wire liner until the wire liner extends at least 2" past the end of the
conductor tube.
3. Install and tighten the wire liner stop, then trim the wire liner 1 3/16" /30mm from the end of the stop.
4. Reinstall the left handle case.
5. Trim the wire liner extending from the conductor tube 13/16"/20,6mm from the end of the conductor tube.
6. File the cut wire liner end to remove burrs that could interfere with wire feeding or catch on the diffuser.
7. Replace the diffuser and contact tip. Install and tighten the nozzle.
8. The MIG gun is now ready to be reinstalled on the feeder.
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