Noisy, high pitched whirring MUM6622UC/01 Bosch Universal Mixer
My wife's bosch mixer had a similar problem but it was a very loud grating problem. I talked to the bosch dealer in Utah, sorry, I've forgotten which one-- the one that does the repair. This is typically what happens: the seal on the blender wears out, which results in fluids from the blender dripping into the motor, onto the upper motor bearing. So, the upper bearing corrodes and is what is causing the bearing failure and the loud noise (needed hearing protection to operate it). I was lamenting the cost and time it would take to ship the mixer both directions (not actually that much compared to the price of the mixer), and he said he would sell me the bearing and the bottom replacement part of the blender that was leaking. So, I did the repair myself, but it took awhile, and I had to build a puller for the bearing to get it off the shaft, modifying a harbor freight gear puller. But it now is back to new. So, it was a success for me, but i would recommend anyone who isn't very mechanical to just send it off to Utah (again, I forgot the place, I think they talk about the shop in one of the other posts), and you will have a better than new machine.
Nov 08, 2009 |
Bosch 700 Watts MUM6622 Universal Series...