NETGEAR ProSAFE M4300 series Installation Manual page 53

• The middle mounts are already secured in the rack with screws.
• You do not need to install a new half-width switch.
Note The switch that shares the same rack of the switch being replaced can remain
operational during this procedure.
WARNING:
- Make sure to add a support beneath the half-width switches when removing or installing a half-width
switch. The support keeps the switches level while the mounting screws are loosened to avoid
damage to both the switch and the middle mount screws.
- Do not apply unnecessary force on the middle of the two half-width switches when removing or
installing a half-width switch to avoid damage to the switch and deformation of the the middle mount
brackets.
To replace a half-width switch:
1. Remove power to the switch you want to replace.
2. Insert an item under the two half-width switches that can support and keep the switches level during
removal and installation.
3. Loosen the screws with a No. 2 Phillips screwdriver to disconnect the mounting bracket from the rack
of the switch you want to replace.
4. Loosen the screws with a No. 1 Phillips screwdriver to disconnect the middle mounts from the half-width
switches.
5. Carefully pull to remove the switch you want to replace from the rack.
6. Attach the mounts to the replacement switch.
a. If you are replacing the half-width switch on the right, attach the inside middle mounts by inserting
the screws provided in the rack-mount kit with a No. 2 Philips screwdriver.
b. If you are replacing the half-width switch on the left, attach the outside middle mounts by inserting
the screws provided in the rack-mount kit with a No. 1 Philips screwdriver.
7. Gently push the new half-width switch into the rack until the holes in each middle mount are aligned.
8. Attach the supplied mounting brackets to the left side of the left switch and to the right side of the right
switch (as required)
9. Insert the screws provided in the rack-mount kit through each bracket and into the bracket mounting
holes in the switches.
10. Tighten the screws with a No. 1 Phillips screwdriver to secure each bracket.
11. Align the mounting holes in the regular brackets (on the left of the left switch and on the right of the right
switch) with the holes in the rack, and insert two pan-head screws with nylon washers through each
bracket and into the rack.
12. Tighten the screws with a No. 2 Phillips screwdriver to secure mounting brackets to the rack.
13. Remove the item that was used to support the two half-width switches during removal and installation.
Managed Stackable Switch Series M4300
Installation
52