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Installation Instructions
Aluminum Welding Kit
9. Reattach torch cable cover onto
Aluminum Contact
drive deck, making sure wire liner is
Tip
aligned with drive roller, but not
The contact tips in this kit have been
touching the roller (see figure 6).
designed specifically for welding
Note: Trim the liner's length as
aluminum. The hole is slightly oversized
needed.
to reduce drag. There is more mass to
handle the extra heat associated with
aluminum welding. And, the tip is
tapered for use with shielding gases.
These tips are to be used with 0.030"
(0.8 mm) aluminum MIG wire.
1. Remove nozzle by turning
counterclockwise.
2. Remove existing contact tip by
turning counterclockwise.
3. Install 0.030" (0.8 mm) aluminum
Figure 6
contact tip.
4. Reinstall nozzle.
Smooth-Groove
Drive Roller
Aluminum Welding
The existing serrated-groove drive
Help
roller will cut notches in the soft
• Make sure your base metal is very
aluminum welding wire. These notches
clean. New aluminum will oxidize
increase the drag within the wire liner.
almost immediately. Thin layers of
The smooth-groove drive roller
oxidation are clear and cannot be
eliminates this problem.
seen. Use a stainless steel brush to
1. Verify the welder is OFF and
clean the weld area and the work
UNPLUGGED.
clamp area. Use the stainless steel
brush only on aluminum to prevent
2. Open wire feed door and locate
contamination.
drive deck. Release tension on
swing arm by rotating tension
• The center of the contact tip must be
screw down.
clean to transfer the current required
3. Remove roller cover by removing
for welding aluminum. Even new
two screws (see figure 7).
contact tips can benefit from
cleaning with a tip cleaner.
• Since aluminum conducts heat so
well, higher welder output is
required. Also, the wire and travel
speeds need to be faster.
• Work clamp connection must be
thoroughly clean and as close to the
weld area as possible.
• When welding thin material, it is
usually easier to use a "push"
Figure 7 – Remove these two screws
technique rather than a "pull"
technique.
• Do not use the components in this kit
4. Remove serrated-groove drive roller
to weld anything other than
and replace with new smooth-
aluminum to prevent contamination.
groove drive roller.
If you need to weld mild steel,
5. Reinstall roller cover.
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remove this kit and install the
original components that came with
your welder.
2
Notes
Notas
Model WT2531
7
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