How to check rotation of the Scraper on centrifuge

How to check rotation of the Scraper on centrifuge

The rotation of the blades of the scraper system should turn counter-clockwise (same direction as the main motor fan)
If this is not the case check

1.General Power Polarity 

Maybe the incoming power polarity needs to be changed.
This can be verified by checking the rotation of the conveyor and other components. This would also cause the other motors such as the gearbox lubrication pump to run backwards and cause alarms such as GEARBOX LUBRICATION ALARM. If they are all wrong then it is the main power polarity that needs adjusting.

2.Change polarity of scraper motor.

Only change the polarity of the scraper motor itself. 


Scraper direction with motor

 
Main motor Rotation

Gearbox Lubrication Motor

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