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How to unscrew the damaged rubber driver gear so that I can screw on the new one.

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This isn't a 'generic' problem since it is doubtful that all brands are the same. You need to include make and model when asking for help.
Just generally; note the direction the motor rotates when running and try removing the damaged drive gear by turning in the same direction while preventing the motor armature from moving. This latter problem may be tough on some motors and avoid digging into the windings with a screwdriver or other object. It could be a left-hand thread which is always confusing (and unnecessary most of the time).
I'm surprised to read that anyone is attempting to repair an item that is fairly inexpensive to buy new but I wish you success; there is enough junk in the dumps already.

Posted on Jul 04, 2010

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How to disassemble krups gma1 blender


Myron's tip about the need to unscrew the grey rubber coupling is correct, but I was unable to grab the post and hold it still, even though I was using narrow needle-nose pliers. I just could not get underneath the rubber coupling. I ended up cutting the rubber piece off the steel cord inside the coupling, which exposed the threaded post. I could hold the post stationary from above while I unscrewed the steel cord. My old coupling was stripped and worn out, so it did not matter. A new coupling can be ordered cheaply.
I found that it was not necessary to open the housing of the whole appliance as long as you can hold the post stationery. And even if you can't grab the post from above, opening the housing won't help because it won't come off until the coupling is removed at the top.
If you need to open the appliance for anything else, Myron is right, you need to remove the 4 rubber boots on the bottom to expose the screws. The screws are so-called temper-proof screws for which you need a special screwdriver. The screws are called "pin-in-head-star". But removing the 4 scows is not enough. You also need to unscrew the coupling at the top.

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1 Answer

How do i replace clutch in base of blender


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Hello
There are two type of fittings for this gear. In some models it will be push in type, and for others it will be screw type. If your model has push type one, just pull out it from the shaft. You may have to excert a strong force to pull it out. If it is screw type, you have to open its lower lid by unscrewing its secrews, hold the cooling fan and hold the gear at the top, twist it in 'CLOCKWAYS' direction, [not counterclockwise], to screw it out. OK.

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1 Answer

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You are going to be pissed when you find out the solution because the company that makes the blender uses a special screw that requires a special slotted screw driver to remove the bottom panel. Here\'s what I did to circumvent their crummy design, your mileage may vary. Turn the machine on its side or upside down so that you can comfortably reach the bottom panel. Down there you will find a variety of screws holding on the bottom plate. They must all be removed before you can remove said plate. I\'m writing this from memory so please go easy on me if some of the instructions are slightly askew. I think there are five screws that you can easily remove with a standard Phillips head screw driver. The one near the front is slightly smaller. Next, comes the part where you ask yourself what were they thinking. The screw looks like a standard screw but the center of the screw is not milled out making it impossible to remove the screw without a special tool. On top of that, the screws are recessed in the housing making it especially onerous. Fortunately, I had a small pair of needle nosed pliers that were just long enough and strong enough that you could grab the center part of the screw, squeeze hard and put enough torque on the screw head to remove it. The recessed screws are particularly hard to reach and remove but they are doable with enough persistence. I think there were four of these bastard screws . one screw is relatively easy to get to and the other three are much harder. Two of the screws are hidden underneath the grey rubber feet near the back where the power cord connects to the main unit. Once all screws are removed you can slide off the back panel although it will still be connected to the main unit. Finally you will see a grey belt that connects the blade to the motor. I just held the blade spindle from underneath with one hand and grabbed the top gear with my other hand and twisted the drive gear until it unscrews and comes off. Install the new gear by screwing it on in the opposite direction and you are good to go. I threw out the bastard screws and replaced them with comparable length Phillips screws so I never have to endure this atrocity again. Once all the screws are replaced on the bottom panel you should be good to go. I don\'t remember who makes the machine but shame on you. You needlessly complicated a simple repair. Good luck !

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How do I remove the coupler from a Kitchenaid blender, model: KSB560BW0. There seems to be confusion between different models and how to remove it. I have tried prying, and unscrewing clockwise, and...


I just worked on mine tonight. you have to take the bottom off by removing the four rubber feet and then the four screws under them. Now here's the tricky part; you'll need something to hold the jar coupler (round thing spins the blade). I was able to use a large pair of vice grips with some electrical tape wrapped around the jaws, to keep from damaging the coupler. Then take a slot edge screw driver and back out shaft from the coupler. FYI, the threads are reverse, so you will actually be turning the screwdriver clockwise to remove the coupler.

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2 Answers

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Like you, I am all for repairing and keeping the world free of blenders that only need one part replaced. The rubber coupling was easily ordered online, the challenge I later found was to remove it without losing my sanity. After messing up the side grill of the blender pretty good, I realized there is an opening on the motor casing that allows access to a "gear" that is firmly attached to the axle where our little friend will hopefully screw on and restore the contraption to a working state. In order for you to see (which I must warn you, it's not much of a view) through the grill you will need a flashlight or book light. Towards the top of the aforementioned gear (not the rubber part) there is a groove in which a flat screwdriver can easily fit immobilizing the axle and allowing you to easily unscrew it. Oh, but wait, I forgot this is the faulty part and it will spin without the slightest torque on the axle thus never loosening or getting it unscrewed. My solution to this problem was to surgically remove as much rubber as possible to allow me to attach my vise grip to the nut and finally put this thing out of its misery. Using the same procedure of inserting the screwdriver to immobilize the axle I was able to screw the new part and voila the blender is fixed!!!!

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4 Answers

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My coupler was split in two, and I couldn't screw it off. I had to do the following:
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Ed,

The problem I had was removing the grey rubber drive. The solution is that it screws off not pops off. The trick is to use narrow needle nose pliers to grab the post that attaches to the motor and turn the rubber drive counter clockwise. Removing the motor becomes easy. Pull out the 4 rubber feet under the base and the screws will be exposed. However my situation was the grey drive gear was stripped and would bottom out. My solution was to use a same size lock washer as the washer between the post and the drive. So far so good! If it fails I will need to buy another grey drive. Myron

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2 Answers

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Repairing the blender:
My guess: You worked the motor too hard on your last blending session and it overheated. That will cause a thermal fuse inside to cut off. The blender won't work again until you replace the fuse but otherwise it should be fine. The fuse looks like a white diode and it will be attached tightly to the motor with a nylon strap (so that it can pick up the heat of the motor). The leads to the fuse are shielded with heat resistant nylon wrap. You will need to remove the rubber drive gear in order to remove the plastic house so you can work, although if you are really handy you might be able to at least test the unit by only removing the plastic bottom on the base unit.

To remove the plastic housing, remove the little rubber feet and then remove all of the screws on the bottom of the unit. You may need to buy a bit set for tamper resistant screws (I ***hate*** those), I don't remember. When the bottom is removed, you will see that the there is a screw head on the bottom of the central motor shaft. You can use a screw driver here to hold the motor from turning, then you can carefully use a pliers to unscrew the rubber drive gear on the top of the base unit (try not to damage the rubber). With the gear removed you can get access to the wires.

To test the fuse unit, just check its continuity. Short=good, open=bad. To further test, short out the fuse with a jumper cable and your blender should work.

EPO (Electronics Parts Outlet) in Houston, TX, has the replacement fuse unit. I don't know that they like mail order.

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6 Answers

How to replace the rubber drive in Krups 572?


it's not easy. you will need a set of pliers, a flathead screwdriver, and a phillips screwdriver. first, remove the 4 rubber plugs from the bottom of the blender (just work them out with your fingers). second, use the phillips screwdriver to unscrew the 4 screws that were under the ruber plugs. the blender should come apart. right in the bottom center on the inside of the blender you should see a steel rod with a groove in it. this rod will run all the way to the top and be connected to the rubber gear drive on top. get a firm grip on the rubber gear drive with your pliers. place the flathead screwdriver into the groove of the steel rod and unscrew. it will be very tight, but eventually, it will give. you will most likely destroy the old rubber gear drive in the process, but the idea is to replace that one anyway. good luck!

Q. Mosley

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