Down loaded the manual from http://www.manualslib.com/download/555901/Viking-Vmos200.html PG 33
1. Disconnect the power supply cord.
2. Remove turntable and turntable support from oven cavity.
3. Lay the oven on it's backside. Remove the turntable
motor cover by snipping off the material in four corners.
4. Where the corners have been snipped off bend corner
areas flat. No sharp edges must be evident after removal
of the turntable motor cover.
5. Disconnect wire leads from turntable motor.
6. Remove one (1) screw holding turntable motor to oven
cavity.
7. Now the turntable motor is free.
8. After replacement use one (1) new 3/8" #8 sheet metal screw to attach the turntable
motor cover. Not provided with replacement motor
Took 15 min to fix