Electrical motor will not work

grinding are the bearings/gear failing

check loose fan belt
check loose or worn gear

How old is the mixer? If older, check for possible short in cord either at plug end or at mixer body. Best to disassemble and test cord with VOM meter. Often cord and break internally and show open circuit only when cord bent a an angle.

Next< i would look at the speed mixing switch, the mechanical part, not the electronic board, for defect such as dirty contacts.

If above do not work, then check motor brushes. And, only then I would suspect electronic controller.

Please psot Mixer model and serial number rfor further assistance

j

With small engines, ignition is magneto. Four things can cause a lack of spark: (1) Faulty plug - try a new plug; (2) Bad, shorting, or disconnected spark plug wire - check for high voltage from ignition coil; (3) Bad ignition coil - check for low voltage at the coil input wires; (4) Magneto failure - the pickup coils next to the flywheel may be shorted, loose, or disconnected, OR the magnets on the flywheel may have lost their field or come out. I would troubleshoot this problem by checking and eliminating each of these possibilities in the above order. If all of the first three check out good; I'd have a mechanic check the magneto because this requires at least partial disassembly of the motor.

But how can I disassemble it?

My son's machine has the same issue. If I hit the timer with a rubber mallet, it works...on occasion. Let me know if it's fixable. I don't have the right tool to take it apar. The timer seems to be the issue.

BGL0514 - Are you sure the grinding sound was coming from the motor, or was it more likely coming from the transmission? It appears that your mixer had a mechanical failure in the transmission box or planetary gear assembly of your mixer - one of the main gears has failed, hence the loss of power to the agitator.
The inspection and troubleshooting of the transmission is a DITY capability, particularly if your mixer is out of warranty. Just be sure to have the correct Part List manual around when you start to disassemble your mixer. If you're lacking one, you can download it from the KA website. Click on Customer Care>Locate Manuals & Guides> Enter the 6 character model number, and then select Parts List file. You can check the page titled 'Case, Gearing & Planetary Unit, for the disassembly, troubleshooting, and reassembly of your mixer, along with all the parts. It can be messy but gratifying. Once apart you can check for any other unseemly wear and tear on the gears, etc. Here is a link to an excellent webpage for disassembling/fixing your KA Mixer: http://www.neilcrockett.com/mixer.htm
Finally, with respect to your brushes that you removed, I'd suggest removing them again and making sure the contacts are facing in the right direction to contact the armature. The concave contact face should be resting completely on the armature. If you've turned it 90 degrees too much, it wont' seat properly and you'll get no 'juice' to the electric motor, so it won't start. I hope this helps - Howard, Burke, VA
If this solution has helped you, please rate it. hslincoln

The easy answer to this problem is you need a new cord. Any fit all 20 to 35 foot two wire cord will work. However, you will need to take disassemble the almost the entire vacuum to test the current cord to see if it is bad. There are a lot of pieces to take off to get to the inside of the vacuum where the cord enters from the back. You could also have a bad motor.

bushes on electric motor worn need new ones this will cut supply to washer

THE MOTOR HAS PUSHED BACK INTO THE INTERNAL HOUSING. YOU CAN DISASSEMBLE THE HOUSING AND FORCE THE ELECTRIC MOTOR TO IT ORIGINAL SET UP BUT OVER TIME THE MOTOR WILL KEEP MOVING BACK. THE COOLING FAN WILL BEGIN TO GRIND ON THE HOUSING. THE PLASTIC, HOLDING THE MOTOR IN PLACE,WILL BREAK DOWN AND PUSH AWAY FROM THE ATTACHMENTS.