IBM RT PC Options Installation page 42

Observe the following general procedures to protect the drive from static
discharge:
1. Lay the fixed-disk drive (still wrapped in its antistatic bag) on a flat
surface near the system unit.
2. Position yourself so you won't have to walk around while exchanging
the drive. This helps prevent the generation of static electricity.
3. Touch a metal part of your system unit with one hand and the antistatic
bag with the other hand. This will place your body, the drive, and the
system unit as the same ground potential, thus preventing an accidental
static discharge.
4. Slide the antistatic bag off the fixed-disk drive.
5. Handle the fixed-disk drive by the frame only while installing or
removing it. It is recommended that you use both hands to reduce the
chance of dropping the drive.
6. If you are exchanging a drive, put the exchange fixed-disk drive back in
the antistatic bag.
Section 2. Removing and Installing Drives in IBM 6150 2-5