Raise the brush lever and remove the brush.
From the closed side of the gum, squeeze the steel tires with pliers. Take out the gum (1) first from the top bracket of the brush, and then together with the tires from the remaining brackets.
Put the new rubber band without tires into one brush bracket.
Insert both tires into the elastic so that the tabs on the tires are facing towards the elastic. Install them.
Squeeze both steel tires and rubber band with pliers and insert into other staples so that the staple noses on both sides fall into the recess (1) rubber bands.
Install the brush on the wiper arm and secure.
Lower the lever onto the glass. The rubber band must adhere to the glass along its entire length.