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Either the coupling from the motor with the fingers on it is not really attached to the motor shaft or the drive on the blade that engages with it is not attached to the blade shaft. One other thing is that on some models if the rubber jar seal between the beaker and the blade carrier is in the wrong place it can raise the blade drive to not engaging properly with the motor coupling. The gasket goes between the jar and the blade carrier, not under the blade carrier.
Henzee, the part you are looking for is called the KitchenAid blender drive coupling. It is the little black rubber piece ontop of the motor base that looks like a crown with six teeth on top. The motor spins this piece which them spins the blades. It is a very common replacement part for the KSB5 blenders made by KitchenAid.
The part number you are looking for is 9704230, i am not aware of any places in Africa that sell the part but you can probably find someone in the USA that can ship it to Africa.
Here is a link to the video we have on changing the part out:
As stated earlier it could be the shaft needs lubing, remove the bottom part of the blender blade... the rubber thing that engages on the motor. I started with WD-40 and worked some lithium grease into it. Spins like new now.
your blade assembly is corroded. take it off, and using a rag, grab the blades. using another rag, grab the other end (probably rubber) and turn CLOCKWISE - it's threaded reverse, so you have to turn to the right to loosen, not the left like usual. I had to clean out the rod that connects to the blades - it was all nasty and corroded. I cleaned it with my Dremel and regreased with a tube of grease I keep in the garage, cleaned all other parts with some Dawn, dried well, reassembled, and works almost like new. I'm guessing I ran it too long without pulsing the motor and the heat corroded the rod that's connected to the blades. OR you can buy a replacement blade unit for about $10 online on a blender parts site
well it looks to me there is some thing not tight enough connection to ur blade.....as u say it works when empty but when u put soemting in its stops....this means ur blade is not tight on the shaft to the motor......or u may have done something wrong when u had the blender open........recheck ur work and make sure its tight,,,,, if so u will have ur ice cold drink....cheers i hope so for ur shake
Look at the underside of the blade shaft. The metal wing nut on the end of the shaft secures the blade assembly to cream coloured plastic blade base. The wing nut also transmits the drive from the rubber coupling on your blender to the blade shaft. The wing nut has a LEFT HAND thread. The left hand thread ensures the blade assembly does not unscrew during normal blender use.
Firstly disassemble the blender blade assembly. Place a folded tea towel over the blades and hold the blades firmly. If you do not use a tea towel you may cut yourself.
Grip the wing nut with your other hand and unscrew it CLOCKWISE. Remove the wing nut. You can now remove the blade from the plastic base.
Put the blade assembly in the new jug and offer up the plastic base from under the jug so that the blade shaft protudes enough for you to install the wing nut.
Screw the wing nut ANTI-CLOCKWISE to secure the blades to the plastic base.
Do not over tighten the wing nut; you may have to replace your jug again at some point.
My Vitamix 3600 plus has same problem. Result of detachment of rubber coupling between lower splined socket from blade shaft. This is a tough rubber molding that takes tremendous punishment through years of smoothies. Mine showed some rust on the bottom of the blade shaft, where it parted. I tried gluing back together with super glue and tried to eyeball it. Of course it was off by a few degrees. When I reassembled and turned it on, what a racket of vibration! But it held. Amazing. Obviously not good to go though. So I took assembly all apart and redid it, chucking the shaft and the lower nut in the lathe. This time, all true on axis. Glue held for about a week. Right now I am regluing, this time with epoxy. We'll see how it holds up. And meanwhilst, I'm researching replacement parts! I'm not too optimistic about the epoxy.
the top rubber piece could be worn enough that it is not engaging the pitcher. look at it carefully and see if the "teeth" of the rubber disc on top of the base has not cracked and worn away. a picture of the new one can be seen on the parts websites to compare I spent $10.00 for my replacement but i found them at other sites for $6.00. you will need a very skinny 7mm open ended wrench to get the old one off and it is left handed threads that means clockwise will loosen not tighten the part.i ground down my wrench but an ignition wrench from an auto store will usually be thin enough to reach the flats on the shaft under the rubber disc
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