Huawei ACBox Series User Manual page 22

ACBox 12-In 1-Out AC Combiner Box
User Manual
Figure 4-5 Drilling a hole and installing an expansion bolt

To prevent dust inhalation or contact with eyes, wear safety goggles and an anti-dust
respirator when drilling holes.

Clean up any dust in and around the holes using a vacuum cleaner and measure the
distance between holes. If the holes are inaccurately positioned, drill a new set of holes.

Level the head of the expansion sleeve with the concrete wall after removing the bolt,
spring washer, and flat washer. Otherwise, the mounting bracket will not be securely
installed on the concrete wall.
1.
2.
3.
4.
Step 3 Align the mounting bracket holes with the drilled holes, insert expansion bolts into the holes
through the mounting bracket, and then tighten the expansion bolts.
Issue 03 (2018-05-15)
Drill a hole at a marked hole position in the wall using a hammer drill.
Vertically insert an expansion bolt into a hole, and knock the expansion bolt completely
into the hole using a rubber mallet.
Partially tighten the expansion bolt.
Remove the bolt, spring washer, and flat washer by rotating them counterclockwise.
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4 Installation
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