Floppy Disk Drive Maintenance
There really isn't much that can go wrong with a floppy disk drive beyond verifying that the disk is working. Over cleaning the floppy disk drive can destroy the read/write
heads of the drive. You should only clean a floppy disk drive when it begins having read or write problems. Every so often you may want to blow any dust or debris out of the drive by blowing compressed air in the drive slot.
A floppy disk drive cleaning kit can be purchased at virtually all computer supply stores. When the drive begins exhibiting signs of reading or writing problems, use the cleaning kit to clean the read/write heads, following the directions on the kit.