15. Attach the air shroud to the fan tray.
The air shroud has three adhesive surfaces: Two attach to the fan tray and one attaches to the
lower CPU fan.
16. Attach the fan tray to the chassis.
a. Insert the bottom of the fan tray into the chassis.
b. Push the module toward the system board until the latch locks the fan tray in place.
c. Attach the screw.
| NAS Repair Manual
Category D NAS Models 131