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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 5-13Replacing Components (Release 5vs or Later)
5
Figure 5-3. Fan Sub-Assembly
Fans
1. At the back of the unit, remove the four screws from the fan panel. Then
remove the panel.
2. If the unit is attached to the wall, disconnect the entire fan panel.
!
CAUTION:
The power cord for each fan extends from a plug on the backplane.
Do not tug on any of these cords. Otherwise, the corresponding plug
on the backplane might come off.
3. Each fan has a power cord. At the end of each power cord is a plug and
receptacle. Disconnect the plug for each fan that is to be replaced. Then
remove the appropriate fan(s).
4. Install the new fan(s), reconnect the fan plug(s), reconnect the fan panel (if
disconnected), and screw the fan panel back onto the back of the unit.
Hex Nut
Flow
Direction
Fan
Fan
Panel
Screw
Fan
Guard