Hinge pinHinge pinlatchFront doorFigure 5. Removing a front door from the rack cabinetStep 1. Unlock and open the front door.Step 2. Holding the door firmly with one hand, push each hinge pin latch up and to the right to release thehinge pins.Step 3. Grasp the door firmly with both hands and pull it away from the rack cabinet; then, set the dooraside.Reverse this procedure to install the front door on the rack cabinet.Attention: When you install the front door, make sure that you align the hinge pins with the hinges on therack cabinet before you set the hinge pins into place.8 Lenovo 42U Enterprise Primary Rack and 42U Enterprise Expansion Rack Installation Guide