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72 Chapter 6 Routine Maintenance
ACTURA Flex 48330 Power System User Manual
Chapter 6 Routine Maintenance
6.1 Maintenance Of Rectifier
The fan of rectifier shall be maintained periodically.
The fan shall be replaced if it does not work due to faults.
Follow the procedures below to replace the fan:
1. Loosen the 3 screws on the baffle and remove the baffle.
2. Unplug the power cable of the fan and remove the fan.
3. Replace the fan.
4. Plug the fan power cable back into the corresponding socket.
5. Push back the fan (the side with the tag facing inward).
6. Mount the front baffle and fix it with screws.
6.2 Maintenance Of SCU
If any SCU fault affects the normal operation of DC power system, just turn off the
SCU.
6.3 Maintenance Of MFU
1. Short-circuit of load
If some of the loads have short circuit fault, just turn off the circuit breakers in the
MFU to disconnect the power to the loads.
2. MFU short-circuit
When MFU short-circuit occurs, disconnect the AC power supply, isolate the
batteries from the system, and then use battery or rectifier to directly supply power
to load.