64 Service Manual (AA-RS2ED-TE, July 2004)

FRU Removal and Replacement

253Director 2/64 Service Manual

Figure 80: Fan module removal and replacement

Caution: Do not remove a fan module unless the replacement module is

available. Operation of the director with only one fan module for an extended

period may cause one or more thermal sensors to post event codes.

6. Using the rear of the fan module as a handle, pull the module from the

director. Support the fan module with one hand when performing this step.

7. Place the fan module in an antistatic bag to provide ESD protection.

Replacing a Redundant Fan Module

To replace the fan module:

1. Remove the replacement fan module from its protective antistatic bag.

2. Inspect the printed wiring assembly (PWA) on the underside of the fan

module for bent or broken connector pins that may have been damaged during

shipping. If any pins are damaged, obtain a new fan module.

3. Position the fan module at the rear of the director chassis, as shown in

Figure 80. Using the rear of the fan module as a handle, push the module

toward the backplane to engage the connector pins. Support the fan module

with one hand when performing this step.

4. Using a standard flat-tip screwdriver, tighten the two captive screws that

secure the fan module to the director chassis.

5. Disconnect the ESD wrist strap from the director chassis and your wrist.

6. Inspect the fan module to ensure the amber LED is extinguished. If the LED is

illuminated, go to “MAP 0000: Start MAP” on page 46 to isolate the problem.

SHR 2304