I have a Necchi 524 (got it at a yard sale) and it worked until I dropped it -- duh -- now it won't turn on and I'm trying to remove the motor to get to the on/off switch but have gotten stuck. have looked online for instructions or diagrams of the motor to no avail. any ideas? the motor is inside the bottom of the machine and the on/off switch is a rocker switch just above the motor. thanks