H3C S5170-EI Series Installation Manual page 30

Figure 18 Removing the filler panel
3. Unpack the power supply and verify that the power supply model is correct.
4. Correctly orient the power supply with the power supply slot (use the letters on the power supply
faceplate for orientation), grasp the handle of the power supply with one hand and support its
bottom with the other, and slide the power supply slowly along the guide rails into the slot (see
callout 1 in
5. Fasten the captive screws on the power supply with a Phillips screwdriver to secure the power
supply in the chassis (see callout 2 in
verify the installation of the power supply.
As a best practice, use a torque of 5 kgf-cm (0.49 Nm) to fasten the captive screws.
6. Install the filler panel over the empty power supply slot to prevent dust and ensure good
ventilation if you install only one power supply.
Figure 19 Installing a power supply
Removing a power supply
1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2. Disconnect the power cord.
3. Loosen the captive screws on the power supply with a Phillips screwdriver until they are
completely disengaged.
4. Grasp the handle of the power supply with one hand and pull it out a little, support the bottom
with the other hand, and pull the power supply slowly along the guide rails out of the slot.
Figure 19).
Figure 19). If the captive screw cannot be tightly fastened,
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