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MAINTENANCE | ||
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LINER REMOVAL AND
REPLACEMENT
NOTE: When you change wire size, a replacement gas diffuser is required. Use the table below to select the proper diffuser so the liner is held securely in place.
Electrode Diameter | Replacement Liner | Size Stenciled on the End | Gas Diffuser Part Number |
| Part Number | of the Liner Bushing | (and Stencil) |
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.030 (0.8mm) | |||
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.045 (1.2mm) | |||
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3/64" Aluminum | (Plastic Liner) | ||
(1.2mm) |
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LINER REMOVAL, INSTALLATION, AND TRIMMING INSTRUCTIONS FOR MAGNUM 250L
NOTE: The variation in cable lengths prevents the interchange ability of liners between guns. Once a liner has been cut for a particular gun, it should not be installed in another gun unless it can meet the liner cut off length requirement. Liners are shipped with the jacket of the liner extended the proper amount.
1.Remove the gas nozzle and nozzle insulator.
2.Locate the set screw in the gas diffuser which is used to hold the old liner in place.
3.Loosen the set screw with a 5/64" (2.0mm) Allen wrench.
4.Remove the gas diffuser from the gun tube.
5.Lay the gun and cable out straight on a flat sur- face.
6.Loosen the set screw located in the brass connec- tor at the feeder end of the cable and pull the liner out of the cable.
7.Insert a new untrimmed liner into the connector end of the cable.
a.Check the liner bushing stencil to make sure it is the appropriate one for the wire size being used.
8.Fully seat the liner bushing into the connector.
9. Tighten the setscrew on the brass cable connector.
NOTE: Do not install the gas diffuser onto the end of the gun tube at this time.
10.Straighten the cable with the gas nozzle and noz- zle insulator removed from the gun tube.
11.Trim the liner to the length shown in FIGURE D.2.
