User's Manual

RRU3278

Installation Guide

7 Installing RRU

Issue 05 (2017-03-10)

Huawei Proprietary and Confidential

Step 3 Use a 16 mm (0.63 in.) M10 torque wrench to tighten the nuts to 40 N·m so that the mounting

brackets are secured onto the angle steel, as shown in Figure 7-20.



Tighten the nuts on the two square-neck bolts simultaneously. After the main and auxiliary

brackets are secured properly, measure the spacing between the brackets on both sides and

ensure that the spacing is the same on the two sides.



Do not remove the plastic nut at the end of the bolt installed onto the mounting kits.

Figure 7-20 Securing the RRU mounting brackets

(1) Plastic screw cap

Step 4 Install the RRU onto the main bracket, as shown in Figure 7-21.