Huawei DBS3900 Installation Manual page 472

DBS3900 (Ver.B)
Installation Guide
Figure 13-34 Inserting bolts at the upper anchor points
Step 6 Place the IMB03 onto the two bolts at the upper anchor points, and then use a torque wrench to
pre-tighten the two bolts, as shown in
Issue 06 (2011-09-15)
TIP
Tighten the two bolts at the lower anchor points prior to the bolts at the upper anchor points, and ensure
that the subrack is vertical.
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13 Indoor Scenario (BBU Installed in an IMB03)
Figure 13-35.
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