Removal of motor in oster kitchen center?

hi, I work for Kiefer Appliance in Madison, WI. the only way I have had luck removing the plastic drive is to break it off. I use a chisel to break it in half and remove both pieces. Then I use a vice grip to hold the bottom of armature while turning the plastic drive mount off, counter-clock-wise.

if you would like us to do the repair, here is our website: www.kieferapplianc.com

carylAnne
July 2010

If you are talking about removing the motor-gear box assembly- the large plastic drive(coupler) that engages the upper head must be removed.
There are 2 possible solutions the 2nd is not pretty, hope the first works for you it didn't for me.

1- The motor must be lock up, by placing a thin screwdriver through the holes in the base into the fan down into the motor,holding the screwdriver, remove the square drive from the top.The part you are trying to remove actually is screwed into a gear in the gear box, you will need a spanner wrench,or spanner socket(sometimes a strong pair of long nose pliers will work, engage the spanner holes,hold the screwdriver ,and try to unsrew it, you may need someone to hold the screwdriver,because it takes a lot of force to loosen it.These are regular threads,and unscew counter clockwise.

2- if #1 doesn't work-this will- but its not so pretty.
Remove the bottom plate,unplug the white wire from the speed control,and the blue- white wire from the board,also you will have to remove one of the brushes with the white -blk lead.(The color of the leads that have to be unplugged may be different)
Now you will have to actually break off of the top plastic(bakelite)by whatever means you dream up (I actually used a small wood chisel to score a line, and crack it) once its cracked, it breaks apart easily. You will now be able to remove the gear-box motor assembly,that part(the bakelite drive coupler) will now how to be replaced, and is available.
Remove the 3 screws from the top of the gear box pry the box open,remove the gear with the piece that needs to be replaced,now you need to get the piece unscrewed from the gear.I did this by locking the nurled end into a vise, and very carefully grabing the gear teeth with large channel locks(if you think of a better way thats great)it work for me,but I was very concerned about the gear teeth,you can't slip.
At this point you can almost replace anything you need to ,but not all parts are available.
Try the new piece(coupler) to make sure it screws all the way down to the bottom of the gear(it must or your head will be to high ,and won't lock down)if all is well,(remove it)make sure everything is greased,and start re-assembly, the new coupler ,and the square drive will be the last 2 pieces assembled from the top, once again locking the motor with a small screwdriver.

bo
March 2008

I've got an old model Oster Kitchen Center that I am servicing. I've discovered that the motor can be removed from the base after unscrewing the square peg on top of the base. This is done by removing most of the motor's assembly from the base unit, then holding the motor's drive shaft stationary and screwing the square peg counter clockwise.

The gearbox remains in the base, as does the square peg, after you pull the motor free. I believe it can be removed using a spanner wrench on the plastic gear up top.

-good luck

charlie wilson
January 2008