NEC SX, Service And Reference Manual

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Preventive Maintenance 6-3
Protecting the Disk Drives
To protect the disk drives and data, back up the system disk periodically on
diskettes. Periodically use a head-cleaning diskette in the disk drive to prolong
the life of the drive and to help maintain data integrity.
Here are some maintenance procedures to use when servicing a hard disk:
„
Always back up the data files from the hard disk.
„
Run a virus detecting program to check for possible virus infected areas
on the hard disk.
„
Use the preinstalled ScanDisk program to correct any errors found in the
directory and File Allocation Table (FAT). This also frees up space from
any unused sectors.
„
Never turn the computer off when the hard disk is being accessed.
„
Never move or raise the computer while the hard disk is being accessed.
Be especially careful not to jar the hard disk during access, this can cause
a hard disk crash.
„
Use hard disk maintenance program like DEFRAG under DOS, or
acquire Norton Utilities SPEEDISK programs. These programs
reorganize your hard disk by eliminating fragmentation and improves the
hard disk access time.
Handling the Battery Pack
The battery pack furnished with the computer requires reasonable care and
handling to ensure efficient operation and maximum life. Periodically inspect
the battery terminals and the batteries for evidence of corrosion and oxide build-
up.
To ensure that the battery pack endures for a normal life cycle, always observe
the following precautions when handling the battery packs:
„
Do not drop the battery packs or subject them to excessive shock and
vibration.
„
Do not expose the battery packs to direct sunlight, moisture, chemical
compounds, or extreme heat.
„
Do not disassemble the battery packs.
„
Do not use the battery packs to power other devices.
„
Do not short the battery leads or connect the battery with reversed
polarity.
„
Never attempt to charge the battery packs in any way other than as
described in this manual and the user’s guide.