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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Routine Maintenance Procedures
Page 5-36Preventive Maintenance Procedures
5
Preventive Maintenance Procedures
The following preventive maintenance procedures should be followed when you
are visiting customer sites:
Air Filters
Air filters should be inspected annually. If a filter is dirty or clogged, first tap it on
the ground. If the filter is still dirty or clogged, then wash it with warm water and a
mild detergent. A vacuum cleaner can be used if one is available. If there is no
facility for washing or vacuuming the air filter, then replace the filter. Refer to
“CABINET” maintenance object for more information on air filters and fans.
Tape Head/Capstan
The tape drive head (also called the tape head) should be cleaned at least once
a year. Moreover, it should be cleaned as part of the preventive maintenance
strategy. It is recommended that you inspect the tape head during each
maintenance visit and that you clean the tape head several times a year. In
addition, a dated label should be placed on the tape drive unit after the tape
head is cleaned. New tapes leave more abrasive particles on the tape head.
The tape head can be accessed for cleaning from the front of the drive by
opening the tape access door with your finger. Refer to TAPE Maintenance
documentation for more details on cleaning the tape head.
Batteries
The batteries should be replaced every four years or whenever a POWER alarm
occurs in the system.
Preventive Maintenance Log
Figure 5-6 shows a sample of the AT&T Preventive Maintenance Log. Whenever
you complete any of the preventive maintenance procedures described in this
section, be sure to fill in the requested information on the log form before you
leave the customer’s premises.