HP ProCurve 4100 Series Guide

HP ProCurve Switch 4100 Series
Fan Tray Replacement Instructions
This booklet describes the procedures to replace the fan tray in your HP ProCurve
Switch 4100 Series devices. Separate procedures are provided for the Switch 4104,
and Switch 4108 chassis. The procedures are slightly different for these different
sized chassis.
© Copyright 2003 Hewlett-Packard
Development Company, L.P.
The information contained herein is
subject to change without notice.
Part Number: 5990-6001
Edition 1, July 2003
Printed in Singapore
*5990-6001*
Fan Tray Installation Precautions
Warnings
●Make sure that all AC power is disconnected from the switch
before starting the procedures described in this guide. Do not
reconnect the power until the switch is completely reassembled
and cover plates are replaced on any open module slots or power
supply bays.
●If your switch is rack mounted, make sure that the rack is not
going to tip over as you complete these procedures. If the switch
is difficult to reach, remove it from the rack or other mounting
location before proceeding.
Cautions
●Attach a properly grounded ESD wrist strap to your wrist when han-
dling the switch modules, the fan tray, and the fan tray connector. 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.
●Refer to the installation guides that came with your switch and switch
power supply for precautions on proper handling and installation of the
switch and power supplies. For copies of the installation guides, visit
the HP Procurve web site at http://www.hp.com/go/hpprocurve.

Removal and Replacement Procedures (Switch 4104) Removal and Replacement Procedures (Switch 4108)
1. Disconnect power and remove power
supplies and cover plates.
2. Disconnect the fan cable connector from
the backplane and remove the two
screws securing the fan tray.
3. Remove the old tray assembly. 4. Install the new tray assembly.
5. Connect the fan cable connector to
the backplane and re-install the two
screws securing the fan tray.
6. Re-install power supplies and cover
plates, and re-connect AC power.
7. Verify that the new fans are operating
correctly:
• the fans should be operating
• the switch Power LED
should be on
• the switch Fault and Fan
Status LEDs should be on
solidly and not flashing
power supply
cover plate
Loosen the captive screws holding the power
supply and remove the screws in the cover plate.
Caution: This connector has a positive lock.
Be sure to depress the lock to remove the con-
nector and pull straight out to avoid damaging
the pins on the backplane.
positive lock
remove
the two
screws
re-install
the two
screws
Caution: Avoid damage to the pins on the
backplane connector by pushing the cable
connector straight in.
1. Disconnect power and remove power
supplies and cover plates.
2. Disconnect the fan cable connector from
the backplane and remove the two
screws securing the fan tray.
3. Remove the old tray assembly. 4. Install the new tray assembly.
5. Connect the fan cable connector to
the backplane and re-install the two
screws securing the fan tray.
6. Re-install power supplies and cover
plates, and re-connect AC power.
7. Verify that the new fans are operating
correctly:
• the fans should be operating
• the switch Power LED should
be on
• the switch Fault and Fan
Status LEDs should be on
solidly and not flashing
cover plates
power supply
Loosen captive screws holding the power
supply and remove screws in cover plates.
Caution: Avoid damage to the pins on
the backplane connector by pulling
the cable connector straight out.
remove
the two
screws
Caution: Avoid damage to the pins on the
backplane connector by pushing the cable
connector straight in.
re-install
the two
screws