5-2 • Maintenance 8018653 1.1
5.2
Electrostatic discharge
control
BSC equipment electronic assemblies can be damaged by electrostatic
discharge (ESD) if they are removed from their chassis enclosures with-
out protective measures. These protective measures include:
• Grounded wrist straps—Technicians handling ESDS items in an
ESD environment should wear skin-contact wrist straps. The wrist
strap alligator clip should connect to an unpainted metal surface on
the BSC rack or one of the BSC chassis frames.
WARNING
To avoid the risk of electric shock, the wrist strap
should have a resistance in series with ground of
at least 250,000 ohms.
• Grounded tools—Use grounded power tools and tools with uninsu-
lated handles that can be grounded. If tools with insulated handles
are used, the handles should be treated with an anti-static coating.
Neutralize hand tools before and during use by contacting with a
grounded surface.
• Conductive tote boxes and shunts—ESDS assemblies should
always be stored in conductive trays, tote boxes, or bags. Shorting
bars, clips, or special shunts should be used for grounding compo-
nent leads. Ground or contact together all conductive tote boxes or
containers before transferring ESDS assemblies from one carrier to
another.
5.3
Required tools for
maintenance
The following are required:
• Crosstip screwdrivers, assorted sizes
•Flat-tip screwdrivers, assorted sizes
•Stepladder, 6-foot (or metric equivalent)
•Diagonal cutters, small
•Cable ties, assorted sizes
To Next Page
Loading...