# Brake drum wear If your Spring brake is not releasing smoothly, first check whether the cable is kinked or riding on top of itself. If the cable looks correct, the most likely cause is that the drum has become too rough—often with small grooves worn into the surface. Use coarse sandpaper to lightly sand the inside of the drum, then reattach the cable and test the brake. This is easiest to evaluate with a warp on the loom so you can test under tension. This simple fix resolves about 90% of brake-related issues and typically becomes necessary several years after purchasing a new loom. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://learning.loftyfiber.com/floor-and-table-looms-purchasing-information-and-support/louet-floor-and-table-looms/louet-spring-loom/spring-loom-troubleshooting/brake-drum-wear.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.