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Blade won't turn in Cuisinart Duo Blender -- not motor
You have to unscrew and disassemble the blades - pretty easy, just take two rags and grab the blades with one (so you don't cut yourself), and then turn the rubber piece on the other side COUNTER CLOCKWISE, opposite of what you would do to loosen. the rod that runs in the middle that's connected to the blades on mine was all corroded, so I sprayed it down with WD-40, took my Dremel to it and smoothed out the corrosion, added some fresh grease ($2 tube goes a long way), washed the other parts with some Dawn and dried completely, reassembled and it runs much better! Not sure how long it will last, but I have a feeling that one time I ran the blender for a long time instead of pulsing, and the grease that came with it couldn't handle the heat from it turning so long. Anyway good luck!
on Apr 04, 2018
Replace the blade driver clutch on a Cuisinart CBT-500
I had this same problem. It was solved but let me tell you it was a nightmare and we were almost sure the blender would be destroyed at least 3 times during the ordeal.
Here's a hint: the thread is on opposite to a normal screw thread so that it gets tighter as the blender spins.
1. Take the base off the blender and pop out the motor.
2. Turn over the motor and remove the round rubber part at the bottom. You will see a flathead screw. This is where you grip the shaft that the cursed brass coupler thread is attached to.
3. Find someone else to help and also a large strong flathead screwdriver.
4. With a friend holding a screwdriver in place at the bottom, grip the top brass thread with pliers (or better yet a pipe wrench) and twist it the opposite way you normally would.
5. Become extremely frustrated by the fact that the screw thread is made of cheap metal and strips instantly and that the brass thread is also cheaply made and rips right through your pliers / wrench.
6. Find a hack saw and a hammer.
7. Cut the brass thread off with the hack saw. Hammer the stubborn remaining pieces of it off with a screwdriver. Be prepared to cut off half of the shaft.
8. Eventually you should have hammered / sawed the brass thread off. If the shaft and motor are still intact, you can now screw the new coupler on (remember - its backwards). We had only about half of the shaft thread left and it still worked ok. Make sure to do this after you put the motor back in place with the shaft poking through the top of the case. Don't worry too much about how tight it is. As I mentioned its on backwards to tighten the coupler during normal use.
9. Replace the casing and screws, don't forget that rubber thing at the bottom.
10. Curse Cuisinart and make a drink, you deserve it.
on Apr 26, 2014
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