Huawei RRU3971 Installation Manual page 68

Step 2 Use an M6 inner hexagon screwdriver to loosen the four hex socket screws from the main bracket
and pole installation brackets on the second set of mounting brackets, and remove the main
bracket, as shown in
Figure 7-16 Removing the RRU main bracket
(1) Main bracket
Step 3 Install the third main bracket and install the third RRU onto the third main bracket. Then, use
an inner hexagon torque screwdriver to tighten the captive screw into the holes on the top of the
attachment plate and main bracket for the RRU to 5 N·m (44.25 lbf·in.), as shown in
7-17.
The third main bracket must be installed, with the open ends of U-shaped slots on both sides
facing downwards.
Issue ()
Figure 7-16.
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(2) Pole installation bracket
7 Installing the RRU
Figure
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