NEED TO DIMANTLE A MP450

First you drill out the plastic plugs to acess the torx screws holding the housing together. Remove 4 motor mounting screws to separate from shaft.

I need a wiring diagram too don' Robot Coupe have service info. on their products as expensive as they are it's a problem. Robot Coupe MP450 Turbo can't seem to find anywhere. Thanks

I think that you need to flush the unit with water, I would take it apart, then let it dry COMPLETELY before plugging it in....I suspect that the unit will not be damaged.

There is an exploded diagram here which should show how it dismantles
http://parts.robotcoupe.net/mp450.html
Not sure where you are geographically but hope that helps.
You can buy the bearings, I  was going to suggest that it wasn't worth repairing and then I checked the price of a new one!!!!  It is worth repairing I can't believe how expensive they are! Good Luck

see my solution, posted today, 3rd Sept 2010. if you are not pretty handy at fixing things then don't bother is my advice because even if you manage to get it working ok it still my be unusable.

we found the solution to the problem on your website.
Thank's for the tip.

4169 blender dismantling. this device is not suitable to be dismantled but this is how I did it. 1 disconnect from the mains. 2 lever off operating lever button at opposite end to hinge 3 insert sharp screwdriver into gap by top lid at same side as cable entry and prise off 4 heat up the casing with an electric paint stripper, wear gardening gloves. 5 when the casing starts to get pliable, insert a driver into the gap above the operating button locating lip and prise away as far as you can 6 do this with the locating peg on the other side 7 work between the two until the whole thing comes apart 8 lever out the motor, it will slide out once loosened 9 wash out the blender drive shaft with boiling water and detergent 10 dry out the body and soak the inside with silicone oil 11 work the blender blade until it spins freely 12 clean everything up and push it all back together 13 if any parts are deformed with the heat gun reheat them to a pliable state and reform them as best you can 14 if it is all loose when its back together, glue the joints with superglue and spray with glue accelerator 15 test it and if it's no good chuck it in the bin and buy a new one 16 but mine works fine.

4 screws are covered by caps in the handle area, everyone finds these but there are a further 4 screws found by removing the air vent grilles. The grilles are held in place along their shorter sides midway. Pop a fine screwdriver in at this point and the grille comes off.

http://www.retrevo.com/support/Robot-Coupe-MP450Turbo-Food-Processors-manual/id/23109bh930/t/2/
Hope this helps you can download it by PDF

If you type in your model number on the internet information will come up on it for parts & other things. Hope this helps