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RRU3642
Installation Guide
Figure 6-36 Drilling a hole and inserting an expansion bolt assembly
1.
2.
3.
4.
5.
Step 3 Fit the auxiliary mounting bracket on the expansion bolt, and then use a torque wrench (17 mm
[0.67 in.]) to tighten the expansion bolt to 30 N·m (265.52 lbf·in.), as shown in
Issue 01 (2011-12-27)
Use a hammer drill with a φ14 bit to drill holes vertically at the marked anchor points.
Ensure that the depth of each hole ranges from 55 mm (2.17 in.) to 60 mm (2.36 in.).
WARNING
Take proper safety measures to protect your eyes and respiratory tract against the dust
before drilling holes.
Hit the expansion bolt with a rubber mallet until the expansion tube completely enters the
hole.
Tighten an expansion bolt slightly and place it vertically into each hole.
Remove the M10x65 bolt, spring washer, plastic tube, and flat washer from each expansion
bolt assembly in sequence.
NOTE
After completely removing an expansion bolt, store the plastic tube properly.
Hammer the bolt into the wall.
CAUTION
Do not hammer the expansion bolt entirely into the wall. Instead, leave 20 mm (0.79 in.)
to 30 mm (1.18 in.) of the expansion bolt outside the wall.
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Copyright © Huawei Technologies Co., Ltd.
6 Installing the RRU
Figure
6-37.
49
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