Lenovo ThinkSystem SR635 V3 User Manual page 105

When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are
installed, note the following:
• Do not remove the covers. Removing the covers of the laser product could result in exposure to
hazardous laser radiation. There are no serviceable parts inside the device.
• Use of controls or adjustments or performance of procedures other than those specified herein
might result in hazardous radiation exposure.
About this task
Attention:
• Read "Installation Guidelines" on page 45
work safely.
• Power off the server and peripheral devices and disconnect the power cords and all external cables. See
"Power off the server" on page
CAUTION:
Make sure to have three people operate the server installation procedures to prevent injury.
Procedure
Step 1. From the front of the rack, pull the rails all the way out until they stop
Attention: You can only install the server successfully when the rails are fully extended.
Rack front
Figure 53. Pulling out the rails
and "Safety inspection checklist" on page 46
60.
.
Chapter 5 Hardware replacement procedures
to ensure that you
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