Alcatel-Lucent 7750 SR-a4 Installation Manual page 84

Installing a 7750 SR-a Chassis Horizontally in a Rack
84
• a torque driver for the ETSI rack screws. Refer to the rack manufacturer's
documentation for instructions.
• a #2 or #3 Phillips torque driver, depending on the screw size that you use
To install the chassis horizontally in the ETSI rack:
Step 1. Install screws in the rack rail in the bottom-most hole of the allocated U space to
support the chassis temporarily during installation. Make sure that the screws are
installed at least half way into the hole. Do not tighten the screw. (Key 2 in
Figure 21 and
Step 2. With at least two people and, if necessary, using an equipment lift, position the
chassis in front of the rack.
Step 3. Lift the chassis from the bottom and position it in the rack, resting the bottom of the
ETSI brackets (Key 3 in
in Figure 21
Step 4. Insert a screw into each mounting hole. Do not skip any holes. Do not tighten the
screws fully.
Note: The oval-shaped holes in the mounting flanges enable you to adjust the alignment of
the chassis during installation before you tighten the screws.
Step 5. Align the chassis in the rack, if required.
Step 6. Tighten all screws. Refer to the rack manufacturer's documentation for
instructions. See
information.
Step 7. Ground the chassis to the building ground. See
Figure 22).
Figure 21 and
and Figure 22).
Torque Specifications for Rack Mounting on page 59
7750 SR-a4 and SR-a8 Installation Guide
Figure 22) on the temporary screws (Key 2
Chassis Ground Wiring on page
for more
85.