Issues with automatic turbine barring
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Dear experts, I would like to seek your advice: The automatic turbine turning device in my unit has the following issue: When turning the adjustment knob, it is necessary to turn it slowly until it is activated. However, after starting the motor, it was clearly visible through the observation hole that the pinion gradually moved to the right on the screw shaft until it disengaged. The turbine was not started during that period. Thank you
Are you sure you started the turning motor only after the handwheel was turned in completely to its final position?