Huawei DBS3900 Installation Manual page 93

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Installation Guide
Figure 7-1 Marking anchor points
Step 2 Drill holes at the anchor points, and install expansion bolt assemblies, as shown in
The diameter of the hole is 6 mm, and the depth is 25 mm to 30 mm.
Figure 7-2 Drilling holes and installing expansion bolts
Step 3 Place the Extender in the corresponding position and use an M4 Phillips screwdriver to tighten
the screws to 1.4 N•m, as shown in
Issue 08 (2015-01-15)
Figure
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7 Installing the Extender (Optional)
7-3.
Figure 7-2.
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