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Installation Manual – BTS3606 Cabinet Installation
Airbridge BTS3606&3606A CDMA Base Station
II. Drilling Holes and Installing Expansion Bolts
Caution:
The depth of the hole must range from 52 mm (2 in.) to 60 mm (2.4 in.) (the length
of the expansion tube plus that of the drill bit). Otherwise, the expansion bolt
cannot be fastened.
All holes must have the same depth. Before measuring the hole depth, remove the
dust inside the hole to measure the net depth.
If the floor is too hard and smooth to settle the drill bit, punch a pit with a chisel to
help positioning the hole.
Make sure that the expansion tube is completely buried in the ground lest.
Feed the guiding rib on the nut into the guiding slot of the tube first. Otherwise, the
expansion bolt can not be properly installed and secured.
To drill a hole and install the expansion bolt, proceed as follows:
Use the M12 expansion bolt and φ16 bit.
1)
2)
Hold the drill stock firmly with two hands, and keep the drill bit vertical to the
ground to drill a hole.
3)
Clean the dust with a vacuum cleaner when drilling.
4)
Take off the M12×70 bolt, spring washer, plain washer, and insulating washer,
as shown in Figure 2-7.
Huawei Technologies Proprietary
2-8
Chapter 2 Installing Cabinet Assemblies
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