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Can a quarter turn actuator type DRD/DRE also be operated manually?

April 26, 2017Actuator DRD DRE operated quarter turn type

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Can a quarter turn actuator type DRD/DRE also be operated manually?

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The upper shaft end of the quarter turn actuator is designed in such a way that the drive can be operated manually with the aid of a typical open-end spanner. Actuations of this kind do not affect the service life or function of the drives. However, very large drives require very high forces and large levers to set the drive shaft in motion.