Huawei DBS3900 Installation Manual page 228

DBS3900 LampSite
Installation Guide
Figure 11-13 Drilling a hole and inserting an expansion bolt assembly
(1) M6x60 bolt
1.
Take proper safety measures to protect your eyes and respiratory tract against the dust before
drilling holes.
2.
3.
4.
5.
Step 3 Place the mounting kit onto the wall, insert four M6x60 bolts into the tapped holes on the
mounting kit, and tighten each bolt to 5 N· m (44.25 lbf· in.) to secure the mounting kit, as
shown in Figure 11-14.
Issue 08 (2016-05-30)
(2) Nut
Use a hammer drill with a φ8 bit to drill holes vertically at the marked anchor points.
Ensure that the depth of each hole ranges from 45 mm to 50 mm.
Use a vacuum cleaner to clear the dust out from inside and around the holes, and
measure the distances between holes. If any of the hole is beyond the acceptable range,
mark a new anchor point and drill a new hole.
Tighten the expansion bolts slightly, and place each expansion bolt vertically into each
hole.
Use a rubber mallet to pound each expansion bolt until the corresponding expansion tube
completely enters the hole. Leave 20 mm of the expansion bolt outside the wall.
Remove the M6× 60 bolt, nut, spring washer, and flat washer in sequence.
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11 (Optional) Installing the EXD3902 and Cables
(3) Spring washer (4) Flat washer (5) Expansion tube
221