Mixer began to make a noise on speed two and higher
We took our 30 plus year mixer apart. I removed the old grease. There was some crumbly looking grease in the main housing gear section where the nylon gear is located. It looked like it had flour mixed in it. Not certain. Removed as best possible all old grease and applied 6 oz. of new Benalene grease to all of the gears. Now it does not make the slight howl sound.
Unscrew the metal rim and remove the glass window. Remove the old bulb by twesting the bulb towards you. Place the new bulb's pins into the slots and twest away from you. Place the metal rims back in place and screw them down.
Removed back panel. Removed the defective solenoid on its bracket. Replaced it with the new door latch solenoid. This was relatively easy. Replaced the back panel. Tested self cleaning feature. Everything worked fine. I have preformed this same repair once before.