How to Repair Blinds Cable Lock

Repairing blinds - how to change the drawstring

You don't need a handyman to fix blinds. The technology is simple and a skilled do-it-yourselfer is always able to restore proper function. Replacement drawstrings are available from hardware stores or specialist retailers.

What you need:

  • screwdriver
  • New, matching drawstring

Blinds have advantages

There are versions for the inside of the window, which are usually operated with a cord, and there are the stable external blinds, also known as roller shutters, which can be operated with a certain amount of force using a pull cord. The instructions should refer to the repair of these blinds.

  • After being lowered, a roller shutter creates an air-calmed zone between it and the window. This reduces the radiation of heat to the outside air and thus helps to save energy. In addition, blinds offer some resistance when attempting to break in.
  • You can choose between the designs above the window or in the window reveal. The latter variant covers a strip of the clear opening, but leaves the facade smooth. When installing on the outside wall, you keep the light coming in, but the flat facade is interrupted by the boxes.

How to fix a broken drawstring

After many years of regular use, a drawstring can wear and tear. You will then no longer be able to open the blinds. Now it's time to grab your tools and repair the drawstring.

  1. Most of the time, the tape of the blinds will tear near the attachment to the roller. That means you have to open the box that surrounds the roller. This is done in a few simple steps, the boxes are held together by propellers.
  2. Turn the roller to a position where you can easily get to the slot in which the old tape disappears. Sometimes it's just hooked, sometimes knotted. Take a good look at the attachment so that you can reinstall the new tape in the same way. Insert the new tape through the wall up to the roller.
  3. Fasten the new drawstring in the same direction as the old one, if possible after you have wound it around once on the roll. The blind is open and locked. In some cases the roller has to be separated from the lamellas. Now carefully lower the blind.
  4. If the strap is still too long, shorten it to the appropriate length. Too much belt has no space on the winding roll. The rule of thumb is 2.5 times the window height. Now it is important to tension the spring in the winding roll.
  5. To do this, open the case by the window, take out the roll and remove the old tape. Now the return spring in the roller must be tightened firmly. To do this, turn the roller in the direction that the tape would virtually unwind. If the spring is taut, you must now attach the new strap again. A helping hand may be required. Some roles also have a lock.
  6. Now the roll comes back into the housing and it is closed. If you now pull up the roller shutter, the spring relaxes again. The tension is correctly adjusted if the spring always winds the belt tightly when it is opened. If the belt brake does not hold the blind, you are sure to have a belt that is too short, the circumference in the winder is too small.

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