How do I remove the coupler from a Kitchenaid blender, model: KSB560BW0. There seems to be confusion between different models and how to remove it. I have tried prying, and unscrewing clockwise, and nothing seems to work. Help please. Thanks

I'm not familiar with that model number but if it is rubber with fingers sticking up then a large flat screwdriver under it and lever it up, bending it a little from 2 different sides and you should then be able to unscrew it (left hand thread I think) with your fingers. Failing that put in extra effort and wreck it off, the threaded part is aluminum and not strong enough to cause any damage to the motor shaft.
If the coupling is internal splines in a hole ask me another question.

http://www.appliancepartspros.com/search.aspx?model=ksb50b3

you are using your KitchenAid blender and it stops blending, you may think there is a problem with the motor in your machine. However, a common reason for the blades not rotating in the blender is a dirty or faulty coupler. The coupler is what connects your blender dispenser to the motor, and you can easily replace the coupler at any time by only using a screwdriver.
Things You'll Need

• Flat-blade screwdriver

1. • 1 Turn the blender dispenser clockwise and lift up to remove it. Set the blender dispenser aside.
     
   • 2 Insert a flat-blade screwdriver between the black drive coupler and the frame of the blender on the top center portion of the blender.
     
   • 3 Lift the screwdriver upward, and the coupler will start to bend out of place. Slightly turn the coupler and then lift up on the screwdriver again.
     
   • 4 Continue to move the coupler slightly and lift the screwdriver until the coupler is completely removed.
     
   • 5 Insert the new coupler over the blender's motor blade and then twist the coupler counter-clockwise until it is tightly fastened.
     

• Quick Connect Couplingswww.ValuePlastics.com

The cutters are part of the collar itself and not available as a separate part. If there is anything wrong with them you need to replace the whole collar. The collars are available on Amazon UK, K A Parts as well as other places.

This sounds like the black rubber coupler has broken. The teeth often get knocked off. Have a look at the part shown in hte pictures here:
http://kitchenaidblenders.co.uk/Home/tabid/36/p/Two-%282%29-KitchenAid-Blender-Coupler-%2b-WS-Fitting-Tool-9704230_2plusWS/ProductID/175/Default.aspx

Try http://www.kaparts.co.uk/ they are usually in stock and sent first class.

Hi,
You should be able to remove this assembly from the other parts - then you will have enough room to work on it.
Remember to clean the seal area if disturbed or it may leak.

The piece that you need is referred to as the coupler. The coupler is a breakway part that is designed to shear and/or wear down in the event that the blender is overloaded. This is to avoid damage to the motor.

The coupler may be purchased individually and is an easy repair that can be done at home. You may purchase the part and access step-by-step replacement instructions at the following link:

http://www.mendingshed.com/kacoupling.html

The piece that you need is referred to as the coupler. The coupler is a breakway part that is designed to shear and/or wear down in the event that the blender is overloaded. This is to avoid damage to the motor.

The coupler may be purchased individually and is an easy repair that can be done at home. You may purchase the part and access step-by-step replacement instructions at the following link:

http://www.mendingshed.com/kacoupling.html

Someone else suggested a link that explains exactly how to unthread the old coupling... and it works. It took me about 90 seconds to fix my blender. But in case that link is dead, here's a summary:

(1) Note that the coupling (the round part with teeth) is threaded to the blender motor in reverse to a standard threading. So it screws off just like a bottle top, but in a clockwise direction.

(2) place the blender base on a tabletop, facing you. You should probably unplug it.

(3) take a punch or a flathead screwdriver, and place it against one of the coupling teeth that is furtherest away from you.

(4) strike the back of the screwdriver with a small hammer or maillot. The result will spin coupling clockwise. It may take several tries, but the coupling will eventually spin clockwise faster than the motor, and it will begin to unthread.

(5) unscrew the old coupling, and screw the new coupling into place (counterclockwise). Note that the new coupling will tighten itself every time you use your blender, so no need to worry about tightening it too much.

(6) Make a smoothie to celebrate your success!