Tip & How-To about Blenders

Failure of grinding, blending, or mixing kitchen appliances

Generally, a blade or grinding or blending/mixing part that is permanently attached to a metal shaft from the appliance motor is held on that shaft by a 'shear pin'. This pin breaks when something is put in the appliance that the grinder, mixer, blender can't gring, mix, or blend. This is to protect the motor from overload. Afterwards, The motor will continue to turn, but the blade or paddle, or whatever will not turn.
The shear pin needs to be replaced.
The shear pin passes through one side of the base of the bade/grinder/paddle assembly, through the motor shaft, and out the other side of the blade/grinder/paddle.
The piece of the pin must be removed from the shaft, and from the two sides of the blending/grinding part. This is generally a press-fit, and some effort may be required to accomplish this.
When the pieces have been removed, a common 'roll pin' of the appropriate diameter should be inserted to hol the turning part on the shaft. It must fit tightly, and some effort should be required to insert the new pin.

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Any ideas how I remove both the mixing bowl & blade that won't release from my hardly used (maybe 10x's) Kitchen Aid Food Processor?


It sounds like the blade has become jammed on the motor shaft sleeve. You will be up for a new blade and motor shaft sleeve to sort that out. They are not expensive and it is the only proper fix for them. If you replace nothing it will happen again pretty much straight away and if you only do one the other damaged part will wreck the new part. To solve the not turning on problem which is a separate issue it will very likely involve replacement of either the bowl or the lid. One is as likely as the other, I have both parts in stock so I try one or the other to decide which one is the problem. Getting the blade off is a real chore, I have a small chain (with welded links so very strong) I put a couple of turns around the big blade shaft and fix it there with a shackle. It's about 2.5 meters long so I attach the other end to the leg of my bench and accelerate the motor unit away from the bench. The chain comes tight and shocks the blade off. I then drill a hole through the motor shaft about 8 mm from the top, attach the chain to that with a shackle and shock it off just like the blade. New parts now and job done.

Nov 20, 2015 | KitchenAid Kitchen Aid KFPW760WH - 12 Cup...

1 Answer

making a high pitched noise while blending; is motor breaking down?


there are some Breville Blender troubleshooting tips here
http://brevilleusasupport.com/bbl550xl/troubleshooting . Tied in with that, a high pitched noise could come in from a few directions:

Some blenders will use reduction gears to get more torque and power out of a high RPM, lower power motor. If this is the case, the whine could be from the motor, though if you hadn't noticed before, that would not be reassuring.

Per the troubleshooting, check that the blade is firmly attached, and that the coupling from jug to base is firm. If there are gaps or loos spots, there can be buzzing or whining between sort-of-spinning parts and shafts or bolt threads.

Check the motor base for dried spilled-on margarita mix or marinara sauce or what have you. they try to seal this pretty tight in a blender, but it has to spin, so food spills can get in the gap and cause friction and resistance, which can in turn cause whining noises from parts not expecting the load. If you do any cleaning or poking there, make sure you unplug the blender first. Shocks are not fun.

likewise, make sure that blade rotates easily from turning the coupling on the outside of the jug. If not, the bearing may be siezed or contaminated. That you'd likely want to fix by replacement.

Hope this helps!
D

Nov 19, 2015 | Breville Blenders

1 Answer

Why doesn't blade spin?


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.

Sep 04, 2015 | KitchenAid KSB3 Classic Work Top Blender

1 Answer

I can manually turn the blades inside the glass pitcher and I can turn the piece on the top of the motor base into which the pitcher blade attachment fits.


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.

Jul 14, 2015 | Blenders

2 Answers

My vita-mix just stopped working, there is slight burned smell, I was blending walnut pieces with dates paste. Any suggestions?


If the burning smells like plastic then the walnut shells most likely put too much strain on the motor and burned it out. If the burning does not smell like plastic then you most likely have walnut shell grit jamming your motor.

This can be cleaned out by first ENSURING IT IS UNPLUGGED FROM THE WALL.

  • First remove the canister (if possible)
  • The remove the blade (if possible) check for a build up of grit between the blade and the shaft connecting it to the motor.
  • Check the channel the shaft passes through from the motor for large chunks of walnut shells or date paste.
  • Clean the canister thoroughly with warm water and leave it to soak overnight in a water/soap mixture.
If this has not resolved the issue then try to claim it under warranty or source replacement parts online.

Feb 28, 2011 | Vitamix Super 5000 Work Top Blender

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