Note- In the case of a d ual power feed, make a note of the locations of the power cords
beforedisconn ecting them to ensure that they are reinstalled correctly.
Caution - Before you handle any components, wear a wrist strap to ground any static
electricity.If y ou perform this procedure without a wrist strap, individual
componentsor the overall system may be damaged. For details, see "5.4 Stopping
theEntireSystem."
Note- If the crossb ar cables are fixed to the cable support with the hook-and-loop fastener,
removethe hook-and-loop fastener.
Note- Ma ke a note of the positions of the crossbar cables before disconnecting them to
ensurethat they arereinstalled correctly .
For details, see "5.1 Releasing an FRU from the System with the replacefru
Command."
7. Removeal l the powercords from the PSU backplane unit of the chassis
requiringmaintenance.
For details, see "5.5.2 Removing the power cord."
9.4 Removing a Crossbar Unit
Thissection describes the procedure for removing a crossbar unit.
Enable the removal of the crossbar unit before attempting to remove it. For details,
see"9.3 Enabling the Removal of a Crossbar Unit."

9.4.1 Accessing a crossbar unit

1. Lowert he cable support.
For details, see "5.5.1 Lowering the cable support."
2. Removeal l the crossbar cables connectedto the crossbar units requir ing
maintenance.

9.4.2 Removing a crossbar unit

1. Loosenthe two screws securing the crossbar unit.
FujitsuM10-4/Fujitsu M10-4S/SPARC M10-4/SPARC M10-4S Service Manual ･December 2013184