MAINTENANCE
EQUIPMENT AND TOOLS REQUIRED
6 - 2
WBPEEUI240756A0
®
EQUIPMENT AND TOOLS REQUIRED
Tools and equipment required for maintenance procedures
include:
•
Antistatic vacuum.
•
Clean, lint free cloth.
•
Compressed air.
•
Eberhard Faber (400A) pink pearl eraser or equivalent.
•
Fiberglass or nylon burnishing brush.
•
Foam tipped swab.
•
Bladed screwdriver suitable for terminal blocks.
•
Isopropyl alcohol (99.5 percent electronic grade).
•
Natural bristle brush.
PREVENTIVE MAINTENANCE PROCEDURES
This section covers tasks from Table
that require specific
instruction or further explanation:
•
Checking signal, power and ground connections.
•
Cleaning printed circuit boards.
Checking Connections
Check all signal wiring, power and ground connections within
the cabinet to verify their integrity. When checking connec-
tions, always turn a screw, nut or other fastening device in the
direction to tighten only. If the connection is loose, it will be
tightened. If the connection is tight, the tightening action will
verify that it is secure. There must not be any motion done to
loosen the connection.
NOTE: Power to the cabinet must be off while performing this pre-
ventive maintenance task.
Verify that all cable connections are secure.
WARNING
There are exposed AC and DC connections inside the cabinet.
These exposed electrical connections present a shock hazard
that can cause injury or death.
If input or output circuits are a shock hazard after disconnect-
ing system power at the power entry panel, then the door of the
cabinet containing these externally powered circuits must be
marked with a warning stating that multiple power sources
exist.
