H3C Technologies H3C S10500 Series Switches - Manual (Page 60)

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2. Wear an ESD wrist strap and make sure it makes good skin contact and is well grounded. For
more information, see " Installing FRUs ."
3. If the card is an MPU or LPU, remove all its cables.
4. Use a Phillips screwdriver to remove the captive screw on the card, as shown in callout 1 on Figure
41 .
5. Move the ejector levers outwards to separate the card from the backplane, as shown in callout 2
on
Figure 41 .
6. 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 in callout 3 on
Figure 41 .
7. Put the removed card on the antistatic mat.
8. Install a new card. For the installation procedures, see " Installing FRUs ."
9. If no new card is to be installed, install a blank filler panel to ensure adequate ventilation and dust
prevention.
Figure 41 Replacing a card
(1) Loosen the captive screw (2) Move the ejector levers outwards
(3) Take out the card
Replacing a fan tray
CAUTION:
To avoid bodily injury, do not touch the rotating fans when replacing the fan tray.
When the fan tray fails, replace the fan tray to ensure normal operation of the switch.
The fan tray removal and installation procedures for all S10500 switches are the same, even though the
fan tray slot is vertically oriented for the S10504, S10508, and S10512 switches and horizontally