how to disassemble hand blender KHB100

Blender Repair
1

my kitchen aid hand blender stopped working. does anyone know how to open this hand blenderhttp://www.amazon.com/KitchenAid-KHB100OB-Hand-Blender-Black/dp/B00008GSA4/ref=sr_1_3?ie=UTF8&qid=1338388093&sr=8-3

Thanks

2

I have the same appliance. The coupler is damaged. How can this be replaced?

3

Is it in guarantee or warranty period?

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