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I have the part and need to replace the rubber clutch coupling. How do I do this? (This is the part on the base unit which makes the blades in the glass container turn.) Jana
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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.
One of the parts is not being driven properly. Either the clutch on the top of the motor is not really attached to the motor shaft OR the clutch on the bottom of the blade is not engaging with the motor clutch OR the blade clutch is not properly attached to the blade shaft. On some models if you put the rubber sealing ring in the wrong place between the beaker and the blade housing it is enough to lift the clutches apart. The rubber wing goes between the beaker and the blade housing, not between the blade housing and the blade retaining ring.
Lots of questions, not a lot of information. Is the rubber sealing washer in the wrong place. I have no idea what model/brand you have but on most blenders the rubber seal will go between the beaker and blade assembly, not the blade assembly and the collar.
This is a common problem. This usually happens when either A) too many ingredients are added to the jar or B) the blade spokes do not sit properly in the coupling (the rubber piece). The coupling can be replaced easily. There is a great video on Applianceinsider.com on how to take the coupling off as recommended by KitchenAid themselves. The part can be found at 1800parts.com if you call them their reps are extremely knowledgeable and will be able to help you find the part in seconds. Or if you have the model number you can locate it right on their site.
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.
You will definitely need to change the clutch blade i.e. the black rubber rotating bit. Chaging it on the base unit may be difficult, I would check with your local Kitcheaid repairer for spare parts and repair advice.
The coupler - the black cylindrical piece that juts up from the motor base, and it has 6 teeth protruding inward toward the center of it - is responsible for transferring motion from the motor into the blade assembly. You physically set your jar on top of it.
If you're needing a replacement coupler for your blender, you may order it and find repair instructions at the following link:
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.
This just happened to me too, and I think I just fixed it. First you have to get a replacement part called the "blender coupling" (I got mine online from Goodmans for $3.99). I also replaced the square drive and slinger (two parts come together for $2.99)-that's the little part that sticks up and attaches to the pitcher.
Unscrew the bottom four screws of the base where the rubber feet are. Remove the rubber skirt to reveal four screws that hold the motor in. They are way in there so you'll need a long screw driver. Remove the motor and unscrew the old coupling. Mine had not been replaced since my grandmother bought this blender who knows when, so the coupling was really stuck. I did not have a tool narrow enough to get a good grip to apply enough torque to remove the coupling so I had to try a few other tricks. If your blender is the same, remove the bottom nut, fan blade and two washers. This gave enough of a rod to grip to get the old coupling off. (I also had to use some WD40, and heat and cool the coupling a few times to break the old seal).
Good luck! Hope that helps!
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