Installing the System Rack 4-5Opening Front and Rear DoorsThe front and rear doors of the rack are secured by handles with keylocks. Toopen the door:1. Slide the handle release cover up to uncover the keylock and the handlerelease button. See Figure 4-2, A.2. Unlock the lock, if necessary (Figure 4-2, B). Depress the handle releasebutton (key hole button). The door handle extends when unlatched.3. Rotate the handle (Figure 4-2, C) clockwise to open the door.ABCFigure 4-2. Accessing Door HandlesInside the base of the rack, you will find a generous supply of mountinghardware – self-tapping screws, plated finish screws, black plastic washers andM6 cage-nuts.You can simplify the removal of the rack from the pallet as well as the systemassembly process by removing the front and rear doors and dismantling the sidepanels.