Cleaning and servicing en 2. Move the lock in the direction of the arrow and loosen the pin from the rear . 2. Place the telescopic rail on the rear pin and push the locking mechanism back . 3. Push in the telescopic rail. 4. Push the telescopic rail backwards above the rear pin and disen- gage . Installing telescopic rails 1. Place the extended telescopic rail on the front pin and pull it for- wards slightly to lock in place . 21