Huawei DBS3900 LTE Installation Manual page 47

RRU3260
Installation Guide
(1) Screw
Step 2 Install a buckle on each side at the bottom of the RRU, and use an M4 torque wrench to tighten
the screws on the buckles to 1.4 N•m (12.39 lbf•in.), as shown in
Figure 6-2 Installing buckles at the bottom
(1) Buckle
Step 3 Use four hex screws to secure the plastic shells onto the RRU and use an M6 hex key wrench
to tighten the screws to 2.8 N•m (24.78 lbf•in.), as shown in
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6 (Optional) Installing the Plastic Shells of the RRU
(2) Metal sheet
(2) Screw
Figure
Figure 6-2.
6-3.
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