4700 Refrigerated Sampler Service Guide
Section 1 Introduction and General Guidelines
1-13
1.6 Safety Precautions
There are several precautions you should observe before
attempting to remove and replace a module:
WARNING
Removing a module exposes you to electrical and
mechanical hazards. Always disconnect from AC power
before attempting to remove any module. Only trained
service personnel may remove or replace these modules.
CAUTION
Removing the sealed modules will expose the internal compo-
nents. Wet or corrosive atmospheres may attack the exposed
refrigerator components. Always service modules in a dry cor-
rosion-free environment.
CAUTION
Modules contain circuit boards and sensitive electronic devices
which can be damaged by a discharge of static electricity.
Avoid touching the internal components. Always handle the
module by the edges or exterior surfaces.
CAUTION
Electrical connectors and wires can be damaged if improperly
handled. Electrical connectors must only be handled by the
connector body. Never grasp the wires to disconnect a connec-
tor. Never use tools to disconnect a connector. Never allow a
module to hang by its wiring.
Earth ground bonding conductor. Do not remove or disconnect. If
this conductor must be disconnected to remove a module, it must be
reconnected when installing the replacement module.
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