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MPM-1000A Operator Manual
bolt and screw heads and nuts. Wire brush, sand or otherwise neutralize
corrosion and retouch paint.
c. Welds: The cases of the chassis are welded. To check these welds, look for
chipped paint, rust, corrosion or gaps. If these conditions are found, document
and notify your supervisor.
d. Electrical wires, connectors and harnesses: Tighten loose connectors. Look for
cracked or broken insulation, bare wires, and broken pins or connectors.
12.3 Cleaning
Electrical Shock Hazard. DO NOT clean the Modem chassis when
electrical power is applied. Disconnect all power cables.
Follow all cleaning instructions carefully. Failure to do so can result
in damage to equipment.
Proper cleaning can aid in avoiding problems or trouble, so make it a habit to do
the following:
a. Use a light touch with a soft, lint-free cloth to clean display screens and soft
rubber covered items such as keyboards, operating buttons and controls. Avoid
abrasives or solvents as they can permanently damage the finish on the chassis.
b. All media drives, connector ports, power outlets and vents should be cleaned
periodically. Cleaning kits are available from a variety of sources. Carefully follow
the instructions supplied with the cleaning kit.
c. Operating a system in a dusty or dirty environment significantly shortens its life
and increases the probability of failure. It is strongly advised to perform PMCS
more often than required in these environments.
12.4 Description of PMCS Table Columns
Item No: Item Number.
Interval: The designated interval when each check is recommended to be performed.
Procedures done first or most frequently (i.e., "before" checks and services) shall
appear prior to "during" and "after" checks and services. The core PMCS intervals that
are used are as follows:
Daily
Monthly
WARNING
CAUTION
12-2
1000-7075 Rev E
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Troubleshooting
