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5.4
Checking the direction of rotation
WARNING
This test may only be performed by authorised personnel with the appropriate
training.
Check whether the direction of rotation of the motor matches that of the pump.
To check the direction of rotation the motor must be switched on briefly. The motor must not be allowed
to reach the normal operating speed.
If the direction of rotation is incorrect, the connection on the terminal board must be changed or, if a
phase reversal plug is present, the pins of the plug must be reversed.
12
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