How to replace the brake lever on a Trionic rollator?

To replace the brake lever:

1. Loosen the rear screw of the handle and pull the handle off the handle tube.
2. Loosen the brake lever bolt (one turn) and pull it off the grip tube.
3. Remove the rear wheel.
4. The brake lever body, have screw and nuts which all have to be in line. If you put the gauge on a leash, you can pull the brake cable out to unhook it from the brake lever (keep the brake housing straight).
5. To mount the new brake lever, as above but in reverse.