Can't Remove Coupling from Top of Base of Thomas TH-740-V Blender
I have a Thomas TH-740-V Blender.
When I engage the Blender Jar, the LCD and Control systems are activated but the Start/Cancel button is not activating the motor.
I need to inspect the Blender Jar Engagement Safety Sensor Switch whose location can been seen in the following image.
In order to inspect the switch, I need to be able to remove the motor but in order to remove that I need to remove the Motor Coupling at the Top of the Base as seen in the next image.
So, the question is how can I remove the Coupling?