Removal and Replacement Procedures
5-39
Removal
1.
Shut down the operating system and turn the keyswitch to Off.
2.
At the rear of the cabinet, shut the main circuit breaker off by pushing down
the handle.
3.
Disconnect the cables (17-04942-01) from the blowers.
4.
Remove the four screws that secure the plenum assembly to the rack.
5.
Remove the plenum assembly from the rack.
Replacement
•
Reverse the steps in the Removal procedure.
Verification
Power up the system.