Apple Workgroup Server 9150 - Manual (Page 106)

Upgrades Hard Drive Upgrades - 10
9 Once you have installed
all the hard drives,
replace the top of the
carrier.
10 Replace the two screws
that secure the top of the
drive carrier to the
bottom of the drive
carrier.
Caution:
Be careful not
to pinch the cables that
run from the SCSI ID
select switches.