Question about Blenders
You have to hold the armature so it will not move. Sometimes you can get lucky if you place something small into the fins on the fan from the bottom. Then turn the stud from the top. If it comes loose you are one of the lucky ones. Usually the nut that holds the fan onto the shaft just unscrews. If this approach does not work, you will have to cut the washer around the stud and remove the whole motor from the bottom. Taking the lower housing off of the motor, you should be able to hold the armature with a vise grips but be sure to use a cloth around the armature so you do not damage the shaft. Then turn the stud off.
The stud is screwed into a rubber coupling and the coupling onto the shaft.
To remove the coupling, you do have to take off the bottom of the housing (three or four Philips screws, depending on the model of blender). At the bottom of the shaft, there is a nut holding on the fan. Gripping that nut with one pair of pliers, unscrew the coupling with another pair of pliers. (The coupling sticks out of the upper housing far enough to get a grip on it). three philips screws on the bottom. When the bottom is off you should be able to hold the fan and twist the square drive and cover off the top of the coupler. You can now see the top of the old coupler.
Then you will see four hex head screws (the ones with big black tops that look like washers) inside required to remove the motor. Once you have the motor off you "should" be able to hold the cooling fan on the bottom while you twist the rubber coupling off.
Then replace and reassemble, screwing the square drive pin and cover into the other end of the coupler after you have the motor back in the body. --------- When you remove the base of the blender (using a 1/4" socket wrench or nut driver inside the four rubber feet), you should see the big metal fan covering a big motor assembly. The fan is screwed on one side of the motor shaft, the rubber coupler and drive pin onto the other. How much of the motor assembly you have to take apart depends on how much of the drive pin / rubber coupler is left.
Looking at the top of the unit again, try to get a pair of Vise-Grips clamped solidly to the rubber coupler (or what's left of it). If your vise-grips are too chunky to reach inside the blender housing, you'll have to do more dissassembly.
Get a 4" extension attachment for your 1/4" socket wrench. Look deep inside the blender, and you'll see four bolts holding the motor onto the housing. They should be slathered in grease. Being sure not to lose any washers, rubber gaskets, or other parts, Unscrew all four bolts and slide the motor assembly out of the housing.
Now you can see both ends of the motor - the drive end and the fan end. Clamp the motor's square solid magnet frame into a vise, so you can work freely. Take the fan off - notice that the threads have a flat spot ground onto them to keep the fan aligned. VERY CAREFULLY clamp a vise-grip onto the flat part of the fan-side motor shaft, using a thin piece of wood, folded rag, etc. to protect the threads on the non-flat side. Get this good and tight, but don't dent the threads.
Now, clamp another pair of vise-grips onto what's left of the drive pin/rubber coupler, and spin counterclockwise to loosen.
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Posted on Aug 04, 2010
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Posted on Jan 02, 2017
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