To replace the flint in a windproof lighter, follow these steps: 1) Turn off the lighter and let it cool. 2) Remove the top cover or cap using a tool like a coin or screwdriver. 3) Extract the old flint from the ignition chamber by gently pulling or twisting it. 4) Clean the chamber with a dry cloth or compressed air to remove debris. 5) Insert the new flint into the designated slot, ensuring it aligns properly. 6) Reattach the cover and test the lighter by lighting it in a controlled environment. Always handle flints carefully to avoid injury.

Replacing the flint ensures reliable ignition, particularly in windy conditions. A worn or damaged flint reduces friction between the flint and the striking wheel, leading to inconsistent sparks. According to a 2021 study by the National Fire Protection Association, 30% of windproof lighter malfunctions stemmed from faulty flints, often causing users to relight the flame multiple times. Flints typically last 100–150 uses before degradation becomes noticeable. Regular replacement maintains safety by preventing accidental ignition and extends the lighter’s lifespan. For example, Zippo Manufacturing recommends replacing flints every 2–3 months under heavy use. Data from the Consumer Product Safety Commission shows that 15% of windproof lighter-related injuries occur when users attempt to relight a weak or failing flint. Proactive maintenance reduces these risks and ensures optimal performance in challenging environments.