Tools Required; Safety Precaution - HP 9000 Series 310 Service Information Manual

Tools Required
CAUTION
The computer and bus expander use metric screws requiring the use
of Pozidriv® screwdrivers. Do not use other cross-tip screwdrivers,
such as Phillips or Reed-Prince, as they will eventually damage the
Pozidriv® heads.
The following tools are required to access all field replaceable functional and mechanical assem-
blies:
• Static-free Workstation, HP Part Number 9300-0794
• #1 Pozidriv® screwdriver, 4-inch (100 mm) blade.
• #2 Pozidriv® screwdriver, 4-inch (100 mm) blade.
• Flat-tip screwdriver, 0.125-inch (3 mm) wide tip, 4-inch (100 mm) blade.
• Anti-Static Bags
Safety Precautions
As with any electrical/electronic product, certain safety precautions must be practiced. These
safety precautions, when followed protect both you and the equipment from injury and danlage.
WARNING
Always turn off the equipment and remove ac power cord before open-
ing the computer/bus expander to remove or replace an assembly.
If maintenance activity requires power to be applied while the pro-
tective covers are removed, proceed only with extreme caution using
safe, live-unit maintenance procedures. Do not touch energized com-
ponents or parts with your fingers. Heed and follow all "WARNING-
HAZARDOUS VOLTAGE" labels. Failure to follow these safety pre-
cautions may result in serious injury, or worse.
24 Assembly Replacement