Lenovo 3057 Maintenance Manual page 106

c. Connect the signal cable of each rack handle to the corresponding signal cable connector on the
backplane for server models with 12 3.5-inch hard disk drive bays.
Figure 50. Connecting the rack handle signal cables to the backplane
8. Go to "Completing the parts replacement" on page 186.
Removing and reinstalling the rack handles for server models with eight 3.5-inch
hard disk drive bays and server models with 2.5-inch hard disk drive bays
Attention: Do not open your server or attempt any repair before reading and understanding "Safety information"
on page iii and "Guidelines" on page 83.
To remove and reinstall the rack handles for server models with eight 3.5-inch hard disk drive bays and
server models with 2.5-inch hard disk drive bays, do the following:
1. On each side of the server, remove the screw that secures the rack handle and then remove the rack
handle from the chassis.
Figure 51. Removing the rack handles
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ThinkServer RD430 Hardware Maintenance Manual