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10. Technical inspections and maintenance.
Technical inspections and maintenance can be performed after disconnecting the power supply from the
power network. The PSU does not require any specific maintenance, however, its interior should be cleaned with
compressed air if it is used in dusty conditions. In case of fuse replacement, use only compatible replacement
parts.
Technical inspections should be carried out not less frequently than once per year. During the inspection,
check the batteries and run the battery test.
4 weeks after installation, re-tighten all threaded connections, see Fig. 2 [11] and Fig. 3 [2].
CAUTION!
According to the recommendations of the CNBOP and VdS institutes, the batteries should
be replaced after four years of service, regardless of their status.
