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Installation Manual
Airbridge cBTS3612 CDMA Base Station
II. Drilling
Use a Ö14 or Ö16 bit to drill holes at the marked places.
Caution:
1. Generally the size of the selected bit is bigger than the expansion bolt. If the hole diameter is too
small for the Ö14 drill bit, enlarge the hole diameter by technical means.
2. Hold the drilling bit vertical to the floor during drilling. Hold tight the drillstock with two hands to keep it
in the right direction, as vibrations of the drill may damage the floor and enlarge the size of the hole or
produce a slanting hole.
3. The hole depth should be the length of the expansion bolt stem plus the length of the drill bit. All bolts
should share the same depth. Before measuring the hole depth, remove the dust inside the hole with a
vacuum cleaner, and then drill again if necessary.
4. If the floor is too hard and smooth to settle the drill bit, punch a pit with a chisel to help positioning the
hole.
Marking and drilling are the fundamental steps for the hardware installation. If the
result is not accurate, it will bring trouble to the future work. Thus the quality at the
initial stage is the prerequisite of the whole project.
III. Installing expansion bolts
1)
Before fixing the expansion bolts, clean the dust inside and outside the hole with
a vacuum cleaner, then measure the distance between holes. For the hole with
intolerable error, it should be re-located and drilled again.
2)
Unfix the spring washers, nuts and plain washers; put the expansion bolts
perpendicularly into the installation holes; carefully knock the bolts with a
hammer (nail hammer) into the floor. To avoid the bolts getting loose in the hole,
install and tighten the nuts. Pull the expansion bolt until it slightly expands.
Caution:
Take off the spring washer before installation, otherwise the washer will get invalid when the expansion
bolt is knocked. Carefully knock the bolt into the hole so as to avoid damaging the bolt thread.
IV. Adjusting support height
Adjust the support to the predefined height, finely adjust the height -lock bolts on the
upper support to such an extent that they will not slip down by itself. Put the support
3-13
Hardware Installation
3 Cabinet Installation
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