HP ProCurve 9408sl User manual

ProCurve 9408sl Routing Switch Fan Assembly
Replacement Instructions
This booklet describes the procedures to replace the fan assembly in your ProCurve 9408sl Routing
Switch. The fan assembly consists of two separate items: a fan control module, and the fan itself.
Both items must be replaced in the event of a fan failure. Because the ProCurve 9408sl has redundant
fan assemblies, you can replace a fan and fan control module while the chassis is powered on and
running. The fans and fan control modules are located on the rear panel of the ProCurve 9408sl
chassis.
To replace a fan assembly, you need the following:
■A new fan assembly, which you can order from HP after the warranty period. A new fan assembly
(part # J8680-80003) can be ordered from the HP Parts Store (Online Shopping) web page (URL
www.hp.com/buy/parts).
■A small flathead screwdriver
■A small Phillips screwdriver
■An ESD wrist strap. If your ESD wrist strap has a “banana plug”, it can be plugged into the ESD
connector on the ProCurve 9408sl chassis, located in the upper right corner of the chassis rear.
Replacing the Fan Assembly Procedure
Remove the fan control module:
1. Put on the ESD strap and ground yourself by inserting the plug into the ESD connector located
in the upper right corner of the chassis rear.
2. Using the Phillips screwdriver, loosen the two screws that secure the fan control module
(marked “FCM A” or “FCM B”) to the chassis rear.
© Copyright 2005 Hewlett-Packard
Development Company, L.P. The
informationcontainedhereinis subject to
change without notice.
Part Number: 5991-2188
Edition 1, September 2005
*5990-
Fan Assembly Installation Precautions
WARNINGS
■WARNING: To reduce risk of electric shock, the ESD wrist strap must have a series 1 meg
ohm resistor.
■WARNING: When removing the fan module, the fan may still be spinning. Be careful to not
accidentally insert your fingers into the fan while removing it from the chassis.
Cautions
■Attach a properly grounded ESD wrist strap to your wrist when handling the fan and fan
control module. Do not touch the components or edge connectors on any printed circuit
boards, or the pins on any connectors. Otherwise, damage due to static discharge could
occur.
■To avoid overheating the ProCurve 9408sl chassis, remove only one fan or fan control module
at a time. A minimum of one fan must remain operational at all times. Do not remove both
fan assemblies from the chassis at one time.

3. Remove the fan control module from the chassis by grasping and pulling integral handles at
the top and bottom of the fan control module faceplate as shown below. Pulling the fan control
module unseats the fan control module connector from a chassis connector.
Remove the fan:
WARNING: To reduce the chance of contact with a spinning fan and to prevent
equipment damage, do not perform this step with the fan control module installed.
1. Using the flathead screwdriver, remove the four screws that secure the fan (marked “Fan A”
or “Fan B”) to the chassis rear.
2. Remove the fan from the chassis by inserting your fingers underneath the fan enclosure and
pulling the enclosure toward you as shown below. Pulling the enclosure unseats the fan
connector from a chassis connector.
Install the new fan:
1. Insert the new fan into the fan slot and push the enclosure in until the faceplate is flush with
the chassis. Pushing the enclosure in seats the fan connector with the chassis connector.
2. Secure the fan to the chassis by tightening the four screws.
Install the new fan control module:
1. Insert the new fan control module into the fan control module slot, making certain that the
LED on the faceplate is closer to the top of the chassis than the bottom of the chassis.
2. Push the fan control module in until the faceplate is flush with the chassis. Pushing the module
in seats the module connector with the chassis connector.
3. Secure the fan control module to the chassis by tightening the two screws. The ProCurve 9408sl
initializes the replaced fan control module automatically.
Verify successful operation:
1. Observe the LED on the fan control module faceplate to verify that it is operating normally.
The LED should be a steady green, which indicates that the associated fan is working and
responding to the fan control module. If for some reason a replaced fan control module does
not initialize automatically, you can initialize it manually. To manually initialize the fan control
module, access the CLI and enter this global configuration command:
ProCurve RS (config)# fan <fan-number> init
For the <fan-number> parameter, you can specify one of the following:
0 - The system initializes the fan control module associated with fan 0 (labeled “Fan A” on the
chassis)
1 - The system initializes the fan control module associated with fan 1 (labeled “Fan B” on the
chassis)
2 - The system initializes both fan control modules.
2. Access the CLI and enter the show chassis command to verify that the new fan is operating
normally.
Grasp fan control module here to pull it
out of chassis
Grasp fan enclosure here
to pull it out of chassis