Huawei RRU3971 Installation Manual page 70

Figure 7-19 Installing the sheet metal tab
(1) Screw
1.
2.
3.
Step 5 Install the second set of RRU mounting brackets at least 80 mm (3.15 in.) above or below the
first set of RRU mounting brackets, as shown in
Issue ()
Use an M6 Phillips screwdriver to loosen the screw on the sheet metal tab farther from the
handle of the first RRU and remove the screw.
Use an M6 Phillips screwdriver to loosen the screw on the sheet metal tab closer to the
handle of the first RRU. Then, rotate the sheet metal tab to align the vacant hole in the sheet
metal tab with a hole on the top of the third RRU.
Insert the removed screw into the hole on the top of the third RRU and use an M6 torque
screwdriver to tighten the screw to 5 N·m (44.25 lbf·in.).
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(2) Sheet metal tab
Figure 7-20.
7 Installing the RRU
61