Manual Emergency Operation - Grundfos Change-over device 185 Instrucciones De Instalación Y Funcionamiento

6.3 Manual emergency operation

In case of power failure, the servomotors can be turned to the
desired position manually with the supplied crank handle.
1. Take the crank handle (1) out of the actuator cover.
2. Pull the yellow protection cap off the emergency adjusting
spindle (2).
3. Put in, press down and turn the crank handle.
– The ball valve needs approx. 15 rotations of the crank
handle to get from one final position to the other.
4. After emergency operation, unhook the crank handle (1) and
plug it in the cover of the actuator again.
5. Put the yellow protection cap back on the emergency
adjusting spindle (2).
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Fig. 10 Manual emergency operation
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Fig. 11 Crank handle
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