4–6 Maintenance and Service Guide
Removal and Replacement Preliminaries
4.6 Workstation Precautions
Use the following grounding precautions at workstations:
■ Cover the workstation with approved static-shielding material 
(refer to 
Table 4-2, “Static-Shielding Materials”).
■ Use a wrist strap connected to a properly grounded work 
surface and use properly grounded tools and equipment.
■ Use conductive field service tools, such as cutters, 
screwdrivers, and vacuums.
■ When using fixtures that must directly contact dissipative 
surfaces, only use fixtures made of static-safe materials.
■ Keep the work area free of nonconductive materials, such 
as ordinary plastic assembly aids and Styrofoam.
■ Handle electrostatic-sensitive components, parts, and 
assemblies by the case or PCM laminate. Handle these 
items only at static-free workstations.
■ Avoid contact with pins, leads, or circuitry.
■ Turn off power and input signals before inserting or removing 
connectors or test equipment.