H3C S6520-42QF-EI, Installation Manual, Page: 20 / 53

13
To install a fan tray:
1.
Wear an ESD wrist strap and make sure it makes good skin contact and is well grounded.
2.
Unpack the fan tray and verify that the fan tray model is correct.
3.
Grasp the handle of the fan tray with one hand and support the fan tray bottom with the other,
and slide the fan tray along the guide rails into the slot until the fan tray seats in the slot and has
a firm contact with the backplane (see callout 1 in
Figure 13 ).
4.
Fasten the captive screw on the fan tray with a Philips screwdriver until the fan tray is securely
attached in the chassis (see callout 2 in
Figure 13 ).
If the captive screw cannot be tightly fastened, verify the installation of the fan tray.
Figure 13 Installing an LSWM1FANSC/LSWM1FANSCB/LSWM1HFANSC/LSWM1HFANSCB
fan tray (on the S6520-52QF-EI)
Removing a fan tray
WARNING!
•
Take out the fan tray after the fans completely stop rotating.
•
To avoid an unbalanced fan causing loud noise, do not touch the fans, even if they are not
rotating.
To remove a fan tray:
1.
Wear an ESD wrist strap and make sure it makes good skin contact and is well grounded.
2.
Loosen the captive screw of the fan tray with a Philips screwdriver until it is fully disengaged
from the switch chassis.
3.
Grasp the handle of the fan tray with one hand and pull the fan tray part way out the slot.
Support the fan tray bottom with the other hand, and pull the fan tray slowly along the guide rails
out of the slot.
4.
Put away the removed fan tray in an antistatic bag for future use.
Installing/removing a power module
WARNING!
In power redundancy mode, you can replace a power module without powering off the switch but
must strictly follow the installation and procedures in
Figure 14 and Figure 15 to avoid any bodily
injury or damage to the switch.