3Com 3CB9EF manual Chassis Fan Tray Removal and Replacement Guide

2Chassis Fan Tray Removal and Replacement Guide

Figure 1 Location of FanTrays in the Rear of the Switch 4007R 8-slot Chassis

Module and power supply fan trays

Spring-loaded screw

There are no user-serviceable parts on the fan trays. If these components fail, remove them as described in this document and return the components to your supplier. Keep replacement fan trays at your site so that they are available if needed.

To be able to remove and replace a fan tray, and for proper ventilation, keep the rear of the chassis at least 91.4 cm (36 in.) from any obstruction, such as a wall or another rack.