How to prevent large free-carbon deposit at the beginning of the groove with ARCAIR Tools?
To prevent large free-carbon deposits when using ARCAIR Tools, ensure you turn on the air jet before striking the arc, making sure the air flows between the electrode and the workpiece. Also, verify that the carbon rod is properly seated in the groove within the torch head.
Why is the arc unsteady when using ARCAIR Tools?
If you experience an unsteady arc with ARCAIR Tools, resulting in slow travel speed, it might be due to insufficient amperage for the electrode diameter. While the lowest recommended amperage might work, a mid-range amperage is generally better. If you cannot obtain the desired amperage, consider using a smaller diameter electrode or connecting two or more welding power supplies in parallel.
What to do if slag adheres to the edges of the groove with ARCAIR Tools?
If you notice slag adhering to the edges of the groove when using ARCAIR Tools, ensure you maintain proper air pressure and flow rate. The air hose feeding the concentric cable assembly needs a minimum hose ID of 3/8" (9.5 mm) for manual torches and 1/2" (12.7 mm) for automatic torches. Direct the air jet parallel to the gouge area, avoiding favoring one side unless you want to minimize slag on that specific side.
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