1-3-131-3-3 Installing the key counter (option)Key counter installation requires the following parts:Key counter coverKey counter retainerKey counter cover retainerKey counter mountKey counter socket assemblyFour (4) M4 x 6 TP-A screwsOne (1) M4 x 20 TP-A screwOne (1) M6 x 6 TP-A screwOne (1) M4 x 30 binding screw (P/N B1304300)Two (2) M3 x 6 screwOne (1) M3 bronze nut• Before installing the key counter, press the Power key on the operation panel to off. Make sure that the Power lampis off before turning off the main power switch. And then unplug the power cable from the wall outlet.Turning off the main power switch before pressing the Power key to off may cause damage to the equipped harddisk.Procedure1. Fit the key counter socket assembly to the key counter retainer using the two screws and nut.2. Fit the key counter mount to the key counter cover using the two screws, and attach the key counter retainer to themount using the two screws.Figure 1-3-21Key counter retainer (66060030)M4 x 6 screw (B4304060)Nut M3 (C2303000)Key counter mount (66060040)Key counter cover(2A360010)Key counter socket assembly(41529210)M4 x 6 screw (B4304060)M3 x 6 screw (B2303060)Y104350-7 Sevice Manual