5-5
2.
Wear an ESD wrist strap and make sure it has a good skin contact and is correctly grounded.
For more information, see "Attaching an ESD wrist strap."
3.
Use a Phillips screwdriver to remove the captive screw on the card, as shown by callout 1 in
4.
Move the ejector levers outwards to separate the card from the backplane, as shown by callout
2 in
5.
Use one hand to slowly move the card outwards. Supporting the bottom of the card with the
other hand, pull the card out of the slot along slide rails, as shown by callout 3 in
6.
Put the removed card on the antistatic mat.
7.
Install a new card. For the installation procedures, see "Installing cards."
If you are not to install a new card, install a filler panel in the slot to ensure heat dissipation of the
switch and prevent dust from entering the switch.
Figure 5-7 Replacing a card
Replacing a fan tray
CAUTION:
•
When replacing a fan tray, do not touch the rotating fans to avoid bodily injury.
•
To ensure correct operation of the switch, install a new fan tray within five minutes after the fan
tray is removed.
NOTE:
To examine fan status, use the
display fan
command. For more information, see
H3C
S7500X-G Switch Series Fundamentals Command Reference.
Removing a fan tray
1.
Prepare an antistatic mat to place the removed fan tray.
2.
Wear an ESD wrist strap and make sure it has a good skin contact and is reliably grounded. For
more information, see "Attaching an ESD wrist strap."
3.
Use a screwdriver to remove the captive screw on the fan tray, as shown by callout 1 in
2
3
1