(1) Orange ring on horizontal guide rail
(2) Cable chain, partially removed
b. To unlatch the cable chain, gently insert your finger into the orange ring and push down.
The figure shows the orange ring on the horizontal guide rail (see item 1 in the figure above), as it is
pushed down so that the rest of the cable chain can be pulled out of the enclosure.
c. Pull your finger toward you to unplug the cable chain.
7. Carefully pull the entire cable chain out of the drive shelf.
8. Replace the right fan canister:
a. Slide the fan canister all the way into the shelf.
b. Move the fan canister handle until it latches with the orange tab.
c. If the drive shelf is receiving power, confirm that the amber Attention LED on the back of the fan is not
illuminated and that air is coming out the back of the fan.
The LED could remain on for as long as a minute after you reinstall the fan while both fans settle into
the correct speed.
If the power is off, the fans do not run and the LED is not on.
9. From the back of the drive shelf, remove the left fan canister.
10. If the drive shelf is receiving power, ensure that the right fan goes to its maximum speed.
Possible equipment damage due to overheating — If the shelf is powered on, do not
remove both fans at the same time. Otherwise, the equipment might overheat.
11. Disconnect the left cable chain from its vertical guide rail:
a. Using a flashlight, locate the orange ring on the end of the cable chain attached to the vertical guide
rail.
b. To unlatch the cable chain, insert your finger into the orange ring.
c. To unplug the cable chain, pull toward you approximately 1 inch (2.5 cm). Leave the cable chain
connector within the vertical guide rail.
Possible hardware damage — If the drive tray is powered on, the cable chain is
energized until both ends are unplugged. To avoid shorting out the equipment, do not
allow the unplugged cable chain connector to touch the metal chassis if the other end of
the cable chain is still plugged in.
12. Disconnect the left cable chain from the horizontal guide rail, and pull the entire cable chain out of the drive
shelf.
If you are performing this procedure with the power on, all LEDs turn off when you disconnect the last cable
chain connector, including the amber Attention LED.
13. Replace the left fan canister. If the drive shelf is receiving power, confirm that the amber LED on the back
of the fan is not illuminated and that air is coming out the back of the fan.
The LED could remain on for as long as a minute after you reinstall the fan while both fans settle into the
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