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PROBLEM
POSSIBLE CAUSE
POSSIBLE SOLUTION
Welding wire fused to contact tip.
Using contact tip that is the same size as
welding wire.
Always use a contact tip that is one size larger
that the welding wire.
Burn Back Time (BBT) set too high.
Turn burn back time (BBT) down.
Wire feed speed too low.
Increase wire feed speed.
Excessive spatter.
Material surface preparation needed.
Always weld on clean bright metal. Aluminum
builds up an oxide layer that is non-conductive
and extremely difficult to melt.
Wrong shielding gas.
Always use 100% pure Argon shielding gas
when welding aluminum.
Not enough shielding gas.
Ensure that gas cylinder is fully open. Set
flow meter to 25-30CFH. Ensure that the gas
cylinder is not empty. If necessary, replace gas
cylinder.
Wire feed too fast.
Decrease wire feed speed.
Stick out too long.
Shorten the distance between the gas nozzle
and the material being welded. Maintain a
distance of 3/8” to 5/8”.
Item
Description
Industry Standard #
1
Nozzle
TWECO Style 23-50
2
Contact Tip (0.030, 0.035, 0.040, 0.045)
TWECO Style 14H
3
Gas Diffuser
TWECO Style 52FN
4
White Teflon (PTFE) Liner (ID 2mm, OD 4mm)
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Spool Gun Consumables List
