
2. HARDWARE
B–63505EN/02
114
Fan ordering information
Ordering code Number of units required
For 2–slot rack A90L–0001–0378 For 1–2slot rack
1. Remove the control section printed circuit board underneath the fan to
be replaced.
2. There is a backplane inside the slot. The fan motor cable is connected
to the backplane. Grasp the left and right side of the cable connector
attached to the backplane and remove it.
3. Open the upper lid of the control section rack. Insert a philips head
screwdriver into the hole at the center front of the lid. The latch
holding the cover in place can be released by prying with the
screwdriver in the direction shown in (3) of Fig.2.7.1.
4. Open the lid sufficiently and remove the fan motor. Since the fan itself
is not screwed into the rack, it can be easily removed.
5. Install the new fan motor. Guide the fan motor cable through the hole
and into the rack.
6. Close the lid until the latch locks.
7. Attach the fan motor cable to the connector on the back plane. At this
time,affix the middle portion of the cable to the hooks at the back of
the rack.
8. Insert the removed control section printed circuit board.
(3)
(4)
Fan motor
Back plane
Cable
Connector
Fig. 2.7.1 Fan Motor Replacement
2.7
REPLACING THE
FAN MOTOR
2.7.1
Replacing the Fan
Motor for Control Unit