Question about Black & Decker MX50 PowerPro® Mixer

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How to disassemble Black & Decker MX50 PowerPro Mixer

Have subject mixer and the beaters "suddenly" jammed. Wondering if a gear slipped a tooth?
I can't figure out how to separate the bottom from the top. I can't drop the speed control switch assembly down through the handle so as to remove the bottom/motor. The power-boost button hangs up on the handle where your index finger would go.
Wondering if there is a screw or clip holding the power-boost button to the speed switch. Once disconnected, then the speed switch would drop down and out of the handle. If there is a connector, appears the back of the handle comes off to get at it. There are clips at the bottom of the handle's back, but afraid of breaking the clips.

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Regarding worn gears in cheapo Made in China mixers: The left gear wears symetrically different from the right due to torque and rideout. A temporary fix involves switching (juxtaposing) them left into right, vice-versa. Be sure to observe the position of the beater key slots beforehand to ensure that the beaters won't interfere with each other after reassembly. One is usually 45 degrees advanced from the other I / . You might have to remember that the beaters go in opposite of the way they used to.

Posted on Jul 11, 2010

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To remove the upper part from lower part, the trick is to remove the " eject" button. Once all the handle is free, try to back off the eject button, then you'll see it will get loose from it's shoulders, now you can pull it up.

Posted on Dec 19, 2009

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I have the same "jamming beater" problem. I was able to get the mixer apart following the advice in Solution #1 (thanks). There is no need to separate the handle, unless it lets the "power boost" button move to the back of the mixer (thus sliding it off the referrenced micro switch). I was able to pry it until it came off the switch, at which point the mixer fell apart in my hands.

I believe the "jamming beater" problem is caused by one or both of the large white gears being worn down so that it or they no longer engage the gray worm gear. If one white gear fails, the other beater turns until the beaters jam. I'm now looking for replacement gears, but I imagine it's cheaper to just replace the mixer.

Posted on Dec 04, 2009

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You can remove the handle-back by gently prying the rear clips down and away. But the problem is the power boost button; it has a fork that goes down the left side and snaps over a micro-switch. You need to get that off since there is not room for all 3 buttons (eject, variable speed, and boost) to slide through the handle. A small probe inserted from the top and pushing on the left side to the rear might do it. Or just pry the boost switch upwards; that's how I got mine apart. My problem was the boost microswitch was bad and provided a poor connection. As a result, the beater only ran intermittently on regular switch positions. I solved it by bypassing the boost micro switch. The beater now only runs on the regular speeds but that's fine by me.

Good luck!

Posted on Jan 06, 2009

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