Technical data

21
AC Line Filter
You must remove the unit from the rack before replacing the AC line filter. This component
ordinarily does not require replacement unless it has been damaged by current surges or other AC
power problems.
WARNING Two people must remove the unit from the rack. Failure to do so can result in personal injury and
equipment damage. The unit is heavy and difficult to handle.
To replace the AC line filter:
1. Remove the unit from the rack. Use a helper!
2. Open the cover.
3. Disconnect the power cable from the top of the line filter.
4. Remove the right rail from the base unit.
5. Remove the four screws securing the line filter to the base unit.
6. Lift the line filter from the base unit.
7. Install the new line filter in the base unit and connect the power cable.
8. Install the right rail.
9. Install the cover.
10. Install the unit into the rack. Use a helper!
Keyswitch and LEDs
To replace the keyswitch:
1. Open the cover and remove the face plate as described in Chapter 1.
2. Remove the two screws securing the keyswitch and LED bracket to the base unit. The screws are
underneath the base unit.
Screws