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3.3
Replacing the Cooling Fan
There are seven cooling fans inside the chassis. All of the cooling fans are easily
maintained. Three of the high-speed cooling fans are located in the middle of the
chassis. There are two blowers on the rear of chassis. Another two cooling fans are
located behind the SCSI backplane which was mentioned in Chapter 2.1.1. The fans
provide the system with ample cooling by blowing air toward the rear. To replace the
cooling fans, please proceed according to the instructions below.
3.3.1
Replacing the High-speed Cooling Fan
1.
Remove the top front chassis cover.
2.
Loosen the two thumbscrews on top of the fan unit and then gently pull it out.
(See Figure 3.4). This will disconnect the cooling fan power connector.
3.
Replace the cooling fan with a new one.
4.
Fix the new cooling fan in place by tightening the thumbscrews.
5.
Replace the top front chassis cover and fasten it.
3.3.2
Replacing the Rear Blower
1.
Remove the top rear chassis cover.
2.
Loosen the screws on the blower unit, one on the rear panel, and one on the
hold down clamp. (see Figure 3.5)
3.
Unplug the blower power connector from the alarm board, and release the
blower power wire from the tie mount.
4.
Detach the blower from the bracket by loosening the screws. (see Figure 3.6)
5.
Replace the failed blower with a new one. Please note that the blower should be
oriented so that the airflow is directed toward the back of the chassis.
6.
Secure the new blower to the bracket and then fasten the blower unit back onto
the chassis. The blower unit is uniquely designed to provide the best airflow for
any card configuration. You can adjust its position along with the length of the
guide rail bracket.
7.
Plug the blower power connector to the alarm board and fix the wire into the tie
mount.
8.
Replace the top rear chassis cover and fasten it to the chassis.
Figure 3.4: Replacing the cooling fan
17
ACP-5260 User Manual
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