Figure 7-34 Expansion bolt assembly
(1) M10x65 bolt (2) Spring washer 10 (3) Plastic tube (4) Flat washer 10 (5) Expansion tube
Step 2 Drill holes at the anchor points, and then insert expansion bolt assemblies, as shown in Figure
7-35.
Figure 7-35 Drilling a hole and inserting an expansion bolt assembly
1. 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.
RRU3201
Installation Guide 7 Installing the RRU
Issue 06 (2012-04-16) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
57
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