RRU3269
Installation Guide
Issue Draft B (2018-05-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Step 3 Use a 16 mm (0.63 in.) M10 torque wrench to tighten the nuts to 40 N·m (354.03 lbf·in.) so
that the mounting kits are secured onto the U-steel, as shown in Figure 8-25.
Tighten the nuts on the two square-neck bolts simultaneously. After the main and auxiliary
brackets are secured properly, measure the spacing between the mounting kits on both sides
and ensure that the spacing is the same on the two sides.
Figure 8-25 Securing the RRU mounting kits
Step 4 Use an inner hexagon torque screwdriver to remove the attachment plate from one side of the
RRU, reinstall the attachment plate onto the rear of the RRU, and tighten the four stainless
screws to 5 N·m (44.25 lbf·in.), as shown in Figure 8-26.
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