Huawei DBS3900 Installation Manual page 129

DBS3900 LampSite
Installation Guide
Figure 8-7 Drilling holes and installing expansion bolts
Step 4 Lead the M3.5x35 screws through the washers, and then through the drilling holes on the
mounting bracket to the plastic expansion sleeves, and torque the screws to 1.2 N•m, as
shown in Figure 8-8.
Figure 8-8 Installing the mounting bracket
If the screws cannot be tightened using a Phillips screwdriver, use a hex key or an electric screwdriver to
assist the installation.
Step 5 Fit the rotation axis on the pRRU into the hooks on the mounting bracket, and then push the
pRRU against the mounting bracket until a click is heard. See Figure 8-9.
Issue 08 (2016-05-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
8 Installing a pRRU3902 or pRRU3911 or
pRRU3911+WIFI
122