ii
2.
Use a Phillips screwdriver to loosen the captive screws of the fan tray.
3. Holding the handle of the fan tray with one hand and supporting the bottom of the fan tray with the
other hand, gently pull the fan tray out of the slot along the slide rails.
Figure 37 Removing a fan tray
4. To install a new fan tray, holding the handle of the fan tray with one hand and supporting the
bottom of the fan tray with the other hand, gently push the fan tray into the slot along the slide rails.
5. Use a Phillips screwdriver to fasten the captive screws of the fan tray.
Replacing an SPU
This section describes replacing an SPU-200 for an MSR4060. Follow the same way to replace SPUs for
other router models.
To replace an SPU:
1. Use a Phillips screwdriver to loosen the captive screws of the SPU until the spring pressure is
released.
2. Pivot the ejector levers of the SPU outward, and gently pull the SPU out of the slot.
3. Install a new SPU. For the installation procedure, see "Installing the router."