Areas of Inspection for Worn or Broken Parts (continued):
Another spot to check is the Timing Belt. A badly worn timing belt is noticeable by
turning the machine by hand, and feeling a tight spot, and the machine is always
skipping stitches, breaking needles, and just does not run smoothly. You can check
for this with the machine on its back. See Picture 3. Gently work the belt to one side
of the cog, and check for parts of the belt stuck in the cog itself. This will call for
replacement, no way around it really.
3. The Hook and Bobbin Case area is subject to all kinds of problems. Worn or damaged Feed Dogs, broken Position Bracket,
needle nicked Hook, broken Hook Driver or Thread Pull Off. See Picture 4. We’ll get into all of this later in the book, but
just be aware of these items. If you find a damaged part, see the Contents for the pages dealing with adjusting and replacing
these parts.
These are just some of the very basic areas that problems exist. Taking the little extra time to check them out will save you major
frustrations and expensive repair bills if treated early on. Course some these replacements may be out of your scope, and best left to
an experienced mechanic.
Picture 2
Normally you may find a
part of the fiber washer in
this location
Picture 3
Part of a worn belt building up in
the cog.
Worn Feed Dogs
Damaged or broken Thread Pull
Off Lever or spring
Broken Position Bracket
Damaged or broken Hook
Driver
Damaged Hook Point
Picture 4
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