> For the complete documentation index, see [llms.txt](https://learning.loftyfiber.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://learning.loftyfiber.com/floor-and-table-looms-purchasing-information-and-support/schacht-loom-information-floor-tapestry-rigid-heddle/mighty-wolf/troubleshooting-brakes-on-standard-floor-and-wolf-looms.md). # Troubleshooting Brakes on Standard Floor and Wolf Looms #### Brake Won't Hold Inspect the brake hub (you don’t need to remove it to do this). If the hub is grooved, the cable will not hold properly. Most often grooves will appear at either edge where the hub butts up against the hub flanges. If you find grooves, the brake hub needs to be replaced. A loom serial number is needed to order a new hub. You will find the number pressed into the wood on either the castle side or the front cross brace above the treadles. Older looms will need a complete brake hub kit, newer looms will usually need a brake hub only. #### Nothing Happens When the Brake Release Is Pressed If you press on the brake release pedal and nothing happens, it is probably one of two reasons: the cable is too loose and needs to be tightened, or the brake cable is binding. To tighten the cable on Standard Floor looms, tighten the turnbuckle attached to the back beam. On Wolf Looms, tighten the brake bar eye bolt. You can check to see if the brake cable is crossing over itself and is binding. Most often this is caused by a grooved brake hub (see previous paragraph). If this is the case, the brake hub needs to be replaced. #### The Warp Doesn’t Advance If you attempt to advance the warp using the ratchet advance lever on the front beam, and nothing happens, check to see that the ratchet dog is engaged. You may find that the ratchet dog has flipped backwards into the castle area. #### Warp Advances During Weaving If your warp is constantly advancing while you are weaving, the brake is not holding and the cable needs to be tightened. Tighten the brake cable by turning the turnbuckle on Standard Floor Looms or the brake bar eyebolt on Wolf Looms to snug up the cable. If the cable is still not holding, check the brake hub. If the hub is grooved, the brake will not hold properly. To fix, replace the brake hub. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## 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, and the optional `goal` query parameter: ``` GET https://learning.loftyfiber.com/floor-and-table-looms-purchasing-information-and-support/schacht-loom-information-floor-tapestry-rigid-heddle/mighty-wolf/troubleshooting-brakes-on-standard-floor-and-wolf-looms.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. 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.