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Re: how do i fine a scewdiver to fix my margaritavill,...
A photo would help. If it is what I am thinking of (what looks like a flat heat screw with a dimple in the middle of the slot) you can take an old, small flat head screwdriver and file a notch in the blade to make it work. A Dremel tool works good for making this notch.
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Unplug it and remove and check the carbon brushes one at a time. You are checking them for length, if one has worn short generally is will not have a shiny inner end. It will look burned. If it's 1cm long it's long enough to not be the problem. They are keyed on one corner so make sure you put it back the same way you took it out. You can see the blocking corner if you look into the brush holder with a torch. If that's OK then remove the back cover and move the speed control lever from off to max and observe if things look as "right" as they can to someone who has never seen the innards before. Now plug it in and observe with fingers out of the way while moving the lever and looking for anything unusual while the motor is running. If you see nothing then replace the phase board which is that small 4 wired PCB at the top with 4 wires coming out of it. They are worth not very much at all and if everything else is correct that will solve it. You can replace the PCB without undoing the back plate, you only need to undo the single screw that retains it and the 4 wires followed by a bit of wriggling.
What model number is your machine? Try turning it on it's side and shake a little, take a very small screwdriver and grind away to crack the brush and shake it out. Otherwise it is a full tear down to take the brush holder out. Hope this helps if not get back to us for help
it was stuck on high speed because the phase control board went out, your fix may not be absolutely 100% and it is now causing an uneven distribution of the electric charge in the mixer and it is arching. My recommendation is to replace the speed control board (black and copper plate) and the phase control board. i bet it fixes the problem as these are the two parts that regulate the electricity in the mixer. Hope that helps. Buy the way if you don't fix the problem and continue to use the mixer you may have to replace the motor eventually as you can cause the armature and stator to short or burn out.
I read thru the owners manual for this unit and there is no recommendations for internal service. no reference to lubrication except for keeping the outside free from flour caking up on the moving parts. I have one of these and have seen the inside, they are built like tanks, you should be fine. i would recommend letting it run for a while on low speed to speed the lube around the internal parts, nothing more should be needed. Just make sure it doesnt sound as if the motor is laboring on low speed, this would indicate that internal lube is necessary. I think it will be fine...Worm1855
It seems that the mixer is overheating and tripping the thermostat thus preventing further use. I would recommend a thorough overhaul. You will need to carefully inspect all the components, particularly Items the brush assemblies, and the commutator portion of the armature (where the brushes touch the armature), and everywhere else in the motor compartment. Any parts exposed to oil will need to be degreased and dried before reassembly. When you reassemble your mixer, the brushes can only be installed one way.Make sure the brush's concave contact face is resting completely on the armature.If it is turned it 90 degrees too much, it wont' seat properly and the motor will not get any juice. While your mixer's apart you should check for any other unseemly wear and tear on the gears, etc. You may find more things that need fixing, adjustment or replacement.You may find it easier to replace the brushes than degreasing them. I recommend using a food-grade grease that you can order online (although I've seen automotive bearing grease used too - your call). If you feel this is beyond your capabilities and will be too difficult to do by yourself you can take your mixer to a local small appliance repair shop and have them troubleshoot and fix your mixer.
My wife has the same model and the planetary unit fell off shortly after we bought it. Since we had moved overseas to a remote pacific island, getting it fixed under warranty was out of the question.
Since the rotary unit is a pressue fit, I pressed it back into place and it worked fine for about 3 months before I had to repeat the process. After that it became a monthly ritual.
I finally decided to fix it for good. What I did was drill a 3/8" hole in the center of the nub in the middle of the inverted rotary cover plate. I then drilled a 5/16" pilot hole in the center of the grooved shaft that the rotary cover plate presses onto. I then tapped that hole with a 18 NC tap. I was careful to tap it just a little shy of the depth of the cap screw that I was going to insert into the threaded hole so that it would jam as I tightened it. I then greased all the gears with a white machine grease and pressed the roary cover plate back onto the shaft. I then put a washer on a 5/16"-18 x 1" socekt head cap screw and clamped the thing together. It hasn't come off in the last 2 years.
While I am moderately skilled in this sort of thing it wasn't a precision operation. Since I was living in a fairly remote location with no shop, I did the entire operation on the kitchen counter using a handheld electric drill. Probably the hardest part was determining how deep to tap the shaft. I did it by trial and error. You can adjust the depth by using a washer or two of varying thicknesses.
I'm really surprised how lame a design using a press fit for this assembly is. They could easily prevent the problem by using my approach or even putting a cotter pin through the shaft and reciever tube in the rotary cover plate (a small hole would be needed in the side of the tube to set the cotter pin).
From what I've seen on the internet while looking for a solution, this is a fairly pervasive problem.
We thought we were buying a high quality machine that we thought would be reliable in our remote situation. Fortuantely, other than the falling rotary cover issue, the machine has worked great.
Leaking of oil in a stand mixer is not necessarily indicative of a large problem.
Kitchenaid stand mixers are overpacked with oil to last the lifetime of the motor. If the motor sits idle for some time (is not used), the oil may begin to drip from the gears and settle. Oil leakage may primarily be seen from around the beater shaft or planetary action.
A stand mixer can lose up to a 1/4 cup of oil before it needs to be serviced.
It is recommended to run the mixer on speed 10 for 2 minutes in order to redistribute oil back into the motor. In order to prevent future occurences, this is recommended to be done every 3 weeks if mixer is not being used.
If you remove the bowl guard you will see a magnet that attaches on iy in a white housing.The scews come loose and prevent it from closing the switch.Also the switch which comes out of the top pedestal can be adjusted.Let me know.