Introduction
The Ninja Professional Blender 1100 watt blade housing is simple to replace and can be accomplished by any Ninja user.
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            Unplug blender. 
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            Remove the pitcher from the base by turning it counter clockwise so the pitcher is not aligned with the arrows on the base. 
 
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            Use one hand to pull the blade housing out of the pitcher while using the other hand to hold onto the pitcher handle. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.