What should a welder check for in equipment before beginning a GTAW session?

A welder should prioritize checking the gas levels, electrode condition, and torch integrity before beginning a GTAW session because these components are critical to ensuring a successful welding operation.

The gas levels are important because the shielding gas, typically argon for GTAW, protects the weld pool from contamination by atmospheric gases. Insufficient gas can result in poor weld quality, leading to oxidation and defects.

The electrode condition is essential as well; a contaminated or damaged electrode can affect arc stability and the overall quality of the weld. Ensuring that the electrode is appropriately sharpened and free of contaminants helps maintain a smooth arc and contributes to a clean, precise weld bead.

Torch integrity involves checking for any damage to the torch itself, such as cracks in the body or leaks in the hoses. A compromised torch can lead to failures during operation, impacting safety and the weld's integrity.

Overall, a thorough check of these elements is crucial for ensuring safe and effective welding, which serves as the basis for good practices in GTAW.