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Equipment and Tools Required
Equipment and Tools Required
The tools and equipment required for maintenance procedures
are:
• Antistatic vacuum.
• Screwdriver (medium length).
• Isopropyl alcohol (99.5 percent electronic grade).
• Distilled water.
• Compressed air.
• Foam-tipped swabs.
• Lint-free cloths.
• Nonabrasive eraser.
Preventive Maintenance Procedures
This section covers tasks from Table 7-1 that require specific
instructions or further explanation.
• Cleaning printed circuit boards and edge connectors.
• Checking signal, power and ground connections.
Tabl e 7-1. Preven tive Mainten an ce Schedule
Task Frequency
Check cabinet air filters. Clean or replace them as necessary. Check the air filter
more frequently in excessively dirty environments.
3 months
Check cabinet and module for dust. Clean as necessary using an antistatic vacuum.
Check all module signal, power and ground connections within the cabinet. Verify
that they are secure. Refer to procedure.
Check module circuit board, giving special attention to power contacts and edge
connectors. Clean as necessary. Refer to procedure.
12 months
Complete all tasks in this table. Shutdown
WARNING
Never clean electrical parts or components with live power
present. Doing so exposes you to an electrical shock hazard.
Wear eye protection whenever working with cleaning solvents.
When removing solvents from printed circuit boards using
compressed air, injury to the eyes could result from splashing
solvent as it is removed from the printed circuit board.
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