Huawei DBS3900 Installation Manual page 57

RRU3260
Installation Guide
It is recommended that the mounting brackets be installed at a height of 1200 mm (47.24 in.) to 1600
mm (62.99 in.) above the ground.
Step 2 Install the RU mounting brackets, as shown in
Figure 8-4 Installing the RU mounting brackets
Verify that the arrows on the mounting brackets are pointing up.
1.
2.
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 brackets are secured onto the pole, as shown in
Tighten the nuts on the two square-neck bolts alternatively. 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.
Issue 05 (2014-06-30)
Adjust the position of the nut and remove one end of the square-neck bolt from the slot
on the auxiliary bracket.
Slide the mounting brackets onto the pole horizontally and insert the square-neck bolt
into the slot.
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Figure 8-4.
Figure
8 Installing the RU
8-5.
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