Huawei DBS3900 LTE Installation Manual page 92

RRU3260
Installation Guide
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Procedure
Step 1 Disassemble the RRU mounting brackets, as shown in
Figure 8-42 Disassembling the mounting brackets
(1) Main bracket
(5) Flat washer
1.
2.
Step 2 Use the M10x50 bolts delivered with the IFS06 to secure the pole installation bracket to the
IFS06, and then use an M10 torque socket wrench to secure the bolts to 30 N·m (265.52 lbf·in.).
Issue ()
NOTE
For details about the operating temperature of the RRU, see section "Technical Specifications of
RRUs" in 3900 Series Base Station Technical Description.
Install RRUs in the sequence from bottom to top and from left to right.
This section describes how to install an RRU in height-unrestricted scenarios. The
procedure for installing an RRU in height-restricted scenarios is the same as that in height-
unrestricted scenarios.
When installing the pole installation bracket, you need to use the M10x50 bolts delivered
with the IFS06.
Rubber washers are easily compressed or broken, whereas do not need to be replaced.
(2) Square-neck bolt
(6) Spring washer
Use an M6 inner hexagon torque screwdriver to remove the four inner hexagon screws on
the pole installation bracket, and remove the main bracket from the pole installation bracket.
Use an M10 torque wrench to loosen the nuts on the two square-neck bolts, and remove
the plastic cap, nuts, spring washers, flat washers, square-neck bolts, and pole installation
bracket from the auxiliary bracket.
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Figure 8-42.
(3) Pole installation bracket
(7) Nut
8 Installing the RRU
(4) Auxiliary bracket
(8) Plastic cap
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