Replacing the T640 Standard Upper Front Fan Tray

The upper front fan tray is located above the FPC card cage. Each standard front fan tray weighs about 18.6 lb (8.4 kg). The fan trays are hot-insertable and hot-removable. The standard upper and lower fan trays are interchangeable with each other.

1. Removing the T640 Standard Upper Front Fan Tray
2. Installing the T640 Standard Upper Front Fan Tray

Removing the T640 Standard Upper Front Fan Tray

1. Attach an electrostatic discharge (ESD) grounding strap to your and connect the strap to one of the ESD points on the chassis.
2. Loosen the captive screws on the corners of the fan tray faceplate.
3. Grasp the handles and pull the fan tray halfway out of the chassis.

   Warning: To avoid injury, keep tools and your fingers away from the fans as you slide the fan tray out of the chassis. The fans might still be spinning.

4. When the fans stop spinning, place one hand under the fan tray to support it and pull the fan tray completely out of the chassis.

Figure 1: Removing a Standard Upper Front Fan Tray

Installing the T640 Standard Upper Front Fan Tray

1. Attach an electrostatic discharge (ESD) grounding strap to your and connect the strap to one of the ESD points on the chassis.
2. Grasp the fan tray by its handles and insert it straight into the chassis.
3. Tighten the captive screws on each side of the fan tray faceplate to secure it in the chassis.

Figure 2: Installing an Upper Front Fan Tray