Why does my fire extinguisher have a damaged or missing safety pin?

A missing or damaged safety pin should be treated as a safety concern, because the manuals instruct users to check the locking pin regularly and keep all parts intact. Do not continue to store or use the extinguisher as normal until the retaining part is present and secure. fileciteturn0file8turn0file7

1. Inspect the top of the extinguisher and confirm whether the pin, seal or retaining clip is still in place. Expected result: the safety part is present, secure and undamaged. If it is missing, do not press the handle.
2. Check whether the pin has been bent, opened or partly pulled out. Expected result: the pin should sit cleanly in place and prevent accidental discharge. Any looseness is a warning sign. fileciteturn0file7turn0file8
3. Look for powder residue or other evidence that the extinguisher has already been partially activated. Expected result: there should be no signs of discharge. A used or partly used unit should not be put back into service.
4. Do not replace the pin with an improvised part and do not continue using the extinguisher if the safety mechanism is not complete. If safe use is uncertain, contact the retailer or store where the product was purchased. fileciteturn0file7turn0file8