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Lens dimensions: 60mm x 110mm.
Replacement lenses, fittings and comfort parts for a passive welding helmet, and how to work out the right one.
No. A standard helmet protects the eyes, head and neck from arc radiation and spatter. It is designed for use where ventilation is sufficient, and a fresh-air helmet is recommended where ventilation is poor. The HSE says the best option for arc welders is a powered or supplied-air respirator that combines respiratory, eye and face protection.Where fume controls such as local exhaust do not give adequate control, suitable respiratory equipment should be added, and it must work with the other protective equipment, such as the helmet. Ask your supplier or safety adviser, and follow your risk assessment.
Blow loose dirt and dust off first, then wipe the helmet with a damp cloth wetted with mild soapy water, and dry it with a clean cloth. Maker instructions say not to use solvents or strong cleaning solutions. Plastic plates scratch easily, so handle them carefully.Inspect the shell, headband, filter and plates for cracks, pitting or scratches each time you use the helmet, and replace anything damaged, because a damaged part reduces protection. Do not put the helmet down on a hot surface such as a hot weld, and keep it somewhere clean and dry. Follow the manual for your model.
Adjust the height and girth of the headband for comfort. Set the band fairly low so the helmet stays firmly in place, with the sweatband a little above your eyebrows and ears, and tighten it with the adjusting wheel to suit your head.Then set the helmet angle so that its lower edge is near your chest while welding, where protection is best, and adjust the pivot tightness so a raised helmet stays up but drops when you nod. If it strikes your chest as it falls, it is too loose or set too close to your face. Replace the headband if it is cracked or no longer holds its setting.
A filter retaining spring holds the filter and protection glass in the helmet's hatch frame, so a bent, weak or lost one can let parts shift. How it is released and refitted depends on the helmet, so follow the manual and make sure it is seated properly before use.Adjuster sets are the parts, such as the adjustment plate and screws, that set the helmet angle and how tightly it pivots against the headband. They wear with use, so replace them when they are loose, cracked or no longer hold their setting. These parts are specific to a helmet family, so identify the right one from the manual's parts list or the old part rather than by appearance.