Replacing The Internal Circulation Fan Of The Heat Exchanger - Huawei TP48200A-HT19C4-1 User Manual

TP48200A-HT19C4-1 and TBC300A-TCA2 Telecom
Power
User Manual
Follow-up Procedure
Pack the removed component and return it to the local Huawei warehouse.

4.4.6 Replacing the Internal Circulation Fan of the Heat Exchanger

Prerequisites
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Procedure
Step 1 Disconnect the power cable from the UIM02C.
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Step 2 Disconnect the transfer terminal from the internal air circulation fan.
Step 3 Remove the internal circulation fan.
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Issue 03 (2019-11-15)
You have obtained an ESD wrist strap, a pair of ESD gloves, an ESD box or bag, the
cabinet door key, and a tool kit.
The new fan is intact.
Connect the ground cable to the ESD wrist strap, and put on the ESD wrist strap and
ESD gloves.
Record the position where the UIM02C connects to the signal cables, and then
disconnect the signal cables.
Unscrew and then take out the UIM02C, as shown in Figure 4-8.
Disconnect the -48 V power cable from the UIM02C backplane, as shown in Figure 4-9.
Record the position where cables connect to the internal circulation fan, and then
disconnect the cables.
Remove the cover from the internal circulation fan, as shown in Figure 4-11.
Figure 4-11 Removing the cover from the internal circulation fan
Remove the fixing plate from the internal circulation fan, as shown in Figure 4-12.
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