32Before installing the hard disk drives, turn off the power of the recorder first. When replacing the hard disk drives, the procedureswill be same as those of installation. When installing or replacing the hard disk drives for playback use only (hard disk drives thatare formerly used for recording), perform the link process.Important:When securing the hard disk drives to the HDD brackets, do not mistake the direction of the connectors. (Do not install the•hard disk drives in the opposite direction.)When installing hard disk drives, use a low-torque powered screwdriver or a torque screwdriver to tighten screws with the•specified torque.Hard disk drives are precise devices. Handle with care while keeping the following in mind.•Do not subject the hard disk drive to any vibration or impact.•Before touching the hard disk drive, eliminate static electricity by touching a steel locker, etc. When holding the hard disk•drive, hold the both sides of the hard disk drive.Do not touch the circuit board or the connectors to prevent the hard disk drive from damaging by static electricity.•Contact your dealer for hard disk drives that works on the recorder. Please be forewarned that operation with any hard disk•drive other than the specified models is not guaranteed under any circumstances.When using multiple hard disk drives, use the same model.•If different models are used together, even when the capacities of them are the same, the available capacity may be a few•percent smaller.Note:Hard disk drives are locally procured. Contact your dealer for purchasing, installing, and replacing the hard disk drives.•Install the hard disk drivesInstallation or replacement of the hard disk drivesInstallation or replacement of the hard disk drivesStep 1Turn off the power of the recorder. (☞ Page 35)Step 2Remove the HDD bracket screws (x2) on the HDD slots onthe rear panel of the recorder, and pull out the HDD bracket.Step 3Install the hard disk drive into the HDD bracket using 4 HDDfixing screws (accessories).Tightening torque for the screws: 0.49 N·m {0.36 lbf·ft}HDD bracket screwHDD fixing screw (accessory)HDD fixing screw (accessory)