Singer 700 series - Page 27

Motor Gear and Clutch Spring (continued):
7. Picture (5) shows the all the parts contained within this unit. Another item to pay attention to is the Hand Wheel.
8. Note the little round hole, one of the tabs of the clutch spring fit into this hole. If the hole is cracked, or broken, you may
need a new Hand Wheel. Again, I don’t have a part number for this item, but as always, check your local dealer for one.
Any 600 series will fit also, only difference is the color. All 600 series are of a bluish color, so if you don’t mind it’ll
work. And check for black staining around the Hand Wheel in this area, it is indication of oil on the motor, and this will
end up doing major damage to the motor if left unattended. We’ll cover it later on, or you can reference the Motor
Tuning area.
9. Did I mention the Motor Gear yet? Sure, it was referenced in bullet 1. Check it for smoothness and consistency in the
shape. A beveled gear means a worn gear, and it should be replaced. Sorry, no part number, but as always, check with
your local dealer for a replacement. And again, any 600, 700 or 500, 503, 401, 403 will fit. Picture (6).
5
Check for a broken clutch spring, and damaged Hand Wheel Clutch Spring retainer.
Also check this area of the Hand Wheel for black
staining, it could mean oil on the motor. Not good.
6
The Motor Gear should be consistent in
shape. Any major tapering, or beveling,
means a worn gear, and it must be
replaced.
Example:
A good gear is somewhat like this:
A bad gear will resemble a shape like this:
7/6/2007
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