Huawei DBS3900 Installation Manual page 72

DBS3900 (ICR)
Installation Guide
Figure 8-8 Drilling holes
Step 3 Drill holes on the concrete floor, as shown in
1.
2.
3.
Step 4 Drill holes at the anchor points and install expansion bolt assemblies in the holes, as shown in
the following figure.
Take proper safety measures to protect your eyes and respiratory tract against the dust before
drilling holes.
Issue 12 (2015-04-30)
Place the support under the ESD floor, and use M12x70 bolts to fix the ESD floor to the
support temporarily.
According to the support's mounting hole for the concrete floor, use a marker to mark the
positions for installing expansion bolts.
Use a measuring tape to measure the inter-hole spacing, and ensure that the center-to-center
separations of the holes are consistent.
Figure 8-9 Fixing the support to the ESD floor
(1) Mounting holes on the ESD floor
CAUTION
NOTE
Generally, the concrete floor is solid and smooth. Therefore, you can use the center punch to help locate
the drill bit. If the conditions of the floor allow direct drilling, skip this step.
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Figure 8-9.
(2) ESD floor (3) Mounting holes for the concrete floor
8 Installing the IFS06
67