Tightening a roller blind

When you pull up a closed roller blind, the belt is automatically pulled into the belt feeder and rolled up. But after a few years, it may happen that the belt is now less and less rolled up. As a result, at some point, the roller blind can not be fully opened. Here are various causes in question. Mostly, however, it is done to tension the roller blind.

If the roller blind is not completely rolled up, you must tension the spring

In order to replace the belt at the top of the shaft, you do not have to open the roller shutter box. In particular, if the old belt is still good at the top, you can save yourself this work. Here is a detailed guide on how to repair the roller shutter without opening the case.
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