SAFETY - PRECAUTIONS AND FEATURES
Page 1-4
ELECTROSTATIC DISCHARGE SENSITIVE DEVICES
This manual contains maintenance procedures for parts and assemblies sensitive
to damage by electrostatic discharge (ESD). Parts or assemblies are identi• ed as
ESD sensitive by the symbol to the left.
The following are general precautions that should be observed when handling ESD
sensitive devices or assemblies:
1. Handling ESD sensitive devices at approved • eld force protective work
stations.
2. Keep work area free of static generators, such as plastic cups, foam cushions,
and rayon or polyester apparel.
3. Avoid static-producing activities, such as wiping feet and removing or putting
on smocks while in the work area.
4. Use ESD protective equipment, such as grounded work benches, grounded
tools and test equipment, conductive • ooring, air ionizers, personnel ground
straps with 1 megohm minimum resistance, and protective apparel whenever
possible.
5. Store and transport ESD sensitive devices in protective bags, tote boxes, or
trays. Use original packaging whenever possible.
6. Remove power and signals before removing or installing ESD sensitive
devices or assemblies.
7. Handle ESD sensitive circuit card assemblies by their shunt bars or edges.
Do not touch parts, terminals, or circuitry. Do not use canned coolant for fault
isolation.
DO NOT touch refrigeration
lines while the unit is in
operation. Lines can become
extremely hot or very cold and
can cause severe burns.
WARNING
!
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