Lenovo ThinkSystem DE Series Hardware Installation And Maintenance Manual page 116

Go to "Step 3: Install new controller canister" on page 110.
Step 3: Install new controller canister
After installing the battery and the host interface card (HIC), if one was initially installed, you can install the
new controller canister into the controller shelf.
Step 1. Reinstall the cover on the controller canister by sliding the cover from back to front until the button
clicks.
Step 2. Turn the controller canister over, so that the removable cover faces down.
Step 3. With the cam handle in the open position, slide the controller canister all the way into the controller
shelf.
Controller canister
Step 4. Move the cam handle to the left to lock the controller canister in place.
110
ThinkSystem DE Series Hardware Installation and Maintenance Guide for 2U Enclosures
Cam handle