BELL LABS INNOVATIONS Lucent Technologies 3B21D, Routine Maintenance Tasks

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Tasks Maintenance Routine
Units Cooling and Power Processor Verify
filters air unit fan two expose to door front cabinet processor the Open 2.2.
retainers. filter four and
NOTE:
of type) label single-use or type plastic-loop reusable (a types Two
type plastic-loop Four unit. your on used be may retainers filter
the hold retainers filter) per (one type label two or filter) per (two
place. in filters
air old the remove retainers, filter type plastic-loop the with equipped If 2.3.
until forward filter sliding and retainers filter both on pulling firmly by filter
the for procedure same the (Use channels. mounting filter the clears it
filters.) lower and upper
by filter air old the remove retainers, filter type label the with equipped If
filter the sliding then and unit the from retainer filter the loosening
same the (Use channels. mounting filter the clears it until forward
filters.) lower and upper the for procedure
mounting filter the into retainer(s) filter with filter air new the Insert 2.4.
channel.
NOTE:
label the on date current the write retainer, type label the using If
sticky the with filter the of frame the around label the secure and
down. facing side
the into backward filter the slide retainers, type plastic-loop the using If 2.5.
the on areas slotted two the into clip retainers filter the until channels
lower and upper the for procedure same the (Use unit. housing filter
filters.)
channels the into backward filter the slide retainer, type label the using If
the (Use unit. the to retainer type label the secure then and completely
filters.) lower and upper the for procedure same
Steps Repeat 2.6. 2.3, 2.4 and , 2.5 filter. second the for
door(s). cabinet rear Close 2.7.
door(s). cabinet front Close 2.8.
procedures. local per filters air old the of Dispose 2.9.
20-4 254-303-101 1999 April 3 Issue