H3C Technologies H3C S9500E Series Switches - Manual (Page 87)

77
Preparing for the replacement
1. Put on an ESD-preventive wrist strap, and make sure the wrist strap makes good skin contact and
is grounded.
2. Make sure the power switch of the DC power supply or AC sub power supply is in the OFF position
before removing them.
3. Remove the cables connected to the DC power supply or AC sub power supply.
Replacing the DC power supply
1. Use a Phillips screwdriver to loosen the captive screws on both sides of the power supply, remove
the air filter frame of the power supply, and pull out the handle of the power supply.
2. Supporting the bottom of the power supply with one hand and holding the power supply handle
with the other hand, gently pull the DC power supply out along the slide rails. Put the removed
power supply on an antistatic mat or its original shipping materials.
3. Remove the air filter frame of the new power supply, and pull out the handle.
4. Slowly push the new power supply into the slot along the slide rails until the rear side of the power
supply has close contact with the backplane.
5. Use a Phillips screwdriver to fasten the captive screws on both sides of the power supply panel,
and install the air filter frame of the power supply.