Table of Contents
Advertisement
Preventive Maintenance
WARNING
CAUTION
Chapter 3
Preventive maintenance consists of periodically cleaning the front panel, the
terminal module, and performing the Operator's Check. Clean the module
and terminal module yearly, or more often if the module is used in very
dusty or humid areas. Disassembly of the module is not recommended for
cleaning. However, if the module is disassembled for repair or
reconfiguration, the printed circuit board assemblies (PCAs) can be blown
off with a properly grounded airgun. Remove the terminal module cover to
blow dust off the terminal printed circuit board and case. Table 3-1 shows
the recommended cleaning equipment and supplies.
Table 3-1. Recommended Cleaning Equipment and Supplies
Description
Mild Soap Solution
Lint-free Cloth
Airgun with grounded
nozzle
To eliminate possible electrical shock, disconnect ac power
from the mainframe and disconnect all outputs to the terminal
module before removing the module from the mainframe.
The printed circuit assemblies (PCAs) contain static-sensitive devices
that can be damaged by careless handling. Use static-control devices
(wrist straps, mats, and tools) when handling the module. Chapter 6
contains additional precautions for electrostatic discharge (ESD).
Recommended Use
Clean face plate panel and terminal covers.
Clean face plate panel and terminal covers.
Remove dust from the printed circuit boards
and terminal case.
Operating Information 25
Advertisement
Table of Contents
