Nortel North American DMS-100 Instruction Manual page 117

1-102 Trouble locating and clearing procedures (continued)
Replacing an 8-in. or a 5.25-in. disk drive unit
At a work table
24
25
26
27
28
29
30
297-8021-544 Standard 14.02 May 2001
Place the DDU on its front end on a flat surface where room is available to
work on two DDUs.
Note: The front end of the DDU is opposite the end that has the power
and ribbon cable connectors.
Complete a return label and secure it to the removed DDU.
Note: For additional information on the return equipment, refer to the
correct procedure in this document.
Remove the replacement DDU from the box. Place the DDU on its front end
on a flat surface.
The replacement DDU can have dip switches. Ensure that you set the dip
switches to the same settings as the dip switches on the removed DDU.
To remove the upper slider from the removed DDU, remove the two screws
that hold the slider in place.
Attach the upper slider to the top of the replacement DDU.
To remove the lower slider assembly from the removed DDU, remove the four
screws that hold the slider assembly in place.
(continued)
DDU (rear)
Rubber shock
mount (2)
Spacer (2)
Washers (4)
Screw (2)
Slider
mounting plate