Hitachi CB 520H B1 Service Manual page 172

5 Insert the pass through mezzanine component into server blade
.
connector and storage expansion blade connector straight downward.
Make sure to insert the arch shaped guide bracket into edges of server
blade and expansion blade.
6 Push the portions indicated PUSH on the pass through mezzanine card
.
and cable connector to connect to the server blade connector and
expansion blade connector, respectively.
7 Close the latches of the pass through mezzanine card.
.
8 Tighten two screws to fix the cable connector onto the expansion blade.
.
5-20
Figure 5-18 Inserting the pass through mezzanine component
Figure 5-19 Fixing the pass through mezzanine component
Replacing parts
Hitachi Compute Blade 500 Series System Service Manual