Lenovo ThinkSystem ST50 V2 Maintenance Manual page 69

A video of this procedure is available at YouTube:
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Procedure
Note: Install the bay 1 drive cage first; then, proceed to install the bay 2 drive cage.
Step 1. Install the bay 1 drive cage.
a. Align the bay 1 drive cage to the slots on chassis; then, install it into the chassis. Make sure
the drive cage is seated correctly in the chassis.
b. From the inside of the chassis, fasten the screw that secures the bay 1 drive cage to the
chassis.
c. From the outside of the chassis, fasten the screw that secures the bay 1 drive cage to the
chassis.
Figure 44. Installing drive cage to bay 1
Step 2. Install the bay 2 drive cage.
Align the four hooks on both drive cages, and attache bay 2 drive cage to bay 1 drive cage; then,
slide the bay 2 drive cage downward until the four hooks on both drive cages are fully engaged.
Make sure the latch on the bay 2 drive cage is also engaged with the hook on bay 1 drive cage.
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https://www.youtube.com/playlist?list=PLYV5R7hVcs-
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Chapter 3 Hardware replacement procedures
61