Can a type D hydraulic recloser be closed without power?

A type D hydraulic recloser typically requires an external power source to operate its control functions and actuate the closing mechanism under normal circumstances. However, if the recloser is de-energized, it can be closed manually using a hand crank, which is a common practice for maintenance or operational procedures in some situations. This aligns with safety protocols to ensure that there is no ongoing electrical load when manually closing the recloser.

The other options do not accurately reflect the operational limitations and safety protocols associated with a type D hydraulic recloser. Always being able to close it without power would pose risks for accidental energization, while the necessity for recent servicing is irrelevant to its ability to be manually closed. Proper procedures are important, but without the context of being de-energized and using manual means, that option lacks the specificity required for successful operation. Thus, the statement regarding manual operation provided in the correct choice is consistent with accepted safety practices within the electrical utility field.