The brake line on the Rush 4 - as on most other gliders - goes through a pulley.

Remove the free brake line from the pulley by pulling on the end that goes up to the glider

When reassembling the brake line, make sure you put the line through the pulley again. It is also important to insert the line in the right direction.

Always keep the lines untangled! It is much easier for later reassembly if the lines are not tangled!