Figure 6-4 Drilling holes on the concrete pad
(1) Concrete pad (2) Base of the
cabinet
(3) M12x60 bolt (4) Spring washer (5) Flat washer (6) Expansion tube
1. Use a hammer drill with bit 16 to drill holes at the anchor points, and ensure that the depth
of each hole ranges from 52 mm to 60 mm.
CAUTION
l Do not drill holes through the holes in the base by using a hammer drill. Drilling holes
through the holes in the base may damage the paint on the base.
l Take proper safety measures to protect your eyes and respiratory tract against the dust
before drilling holes.
2. Use a vacuum cleaner to clear the dust inside and around the holes. If the inter-hole spacing
is too wide or too narrow, locate and drill holes again.
3. Slightly tighten the expansion bolt, and then put the expansion bolt assembly into the hole
vertically.
4. Use a rubber mallet to hammer the expansion bolt until the expansion tube is buried into
the hole, and then tighten the bolt.
5. Remove the bolt, spring washer, and flat washer counterclockwise.
DBS3900 (Ver.B)
Installation Guide
6 Outdoor Scenario with AC Power Supply (BBU Installed
in an APM30H)
Issue 06 (2011-09-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
32
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