Removing The Switch Fans; Replacing The Switch Fans; Removing The Switch Front Chassis Cable; Removing The Sp Switch Fans - IBM RS/6000 SP Service Manual

Removing the switch fans

Note: Refer to "Handling static-sensitive devices" on page 4-1 before removing or installing ESD sensitive
devices.
Perform these procedures to remove a fan from an SP Switch assembly:
1. Perform "Placing a switch assembly into service position" on page 3-9 to place the switch assembly
into the service position.
2. Remove the top cover of the switch assembly by removing the screws.
3. Locate the fan.
4. Push shock mounts toward center of fan.
5. Pull fan out of the fan bracket. Keep the shock mounts for mounting the new fan.
6. Disconnect fan cable from supervisor control cable.

Replacing the switch fans

Perform these procedures to replace a fan in an SP Switch assembly:
1. Transfer shock mounts from the old fan to the new fan.
2. Using another fan as an example, route the fan cable and orient the fan with airflow indicator pointing
toward the rear of the switch assembly.
3. Mount fan in the fan bracket by pulling the shock mounts through the holes in the fan bracket.
4. Push shock mounts outward to lock in place.
5. Reconnect fan cable to the supervisor control cable.
6. Reinstall top cover of switch assembly and reinstall all screws.
7. Perform "Replacing a switch assembly from service position" on page 3-9 to remove the switch
assembly from the service position.
Switch
Fans
5
4
3
2
1
Figure 4-2. Removing the SP Switch fans

Removing the switch front chassis cable

Note: Refer to "Handling static-sensitive devices" on page 4-1 before removing or installing ESD sensitive
devices.
Chapter 4. FRU removals and replacements
4-3