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37
19X Service Manual
Checking the Thread Guides
Parts & Tools Needed:
Instructions
A damaged thread guide is one possible cause of breaking thread when stitching or winding a bobbin.
Take the following steps to inspect the thread guides and to replace them if needed:
1
Locate the thread guides along the thread path.
2
Use a piece of thread like floss to feel around
the inside of the thread guides indicated in
the previous step. Feel for any snagging or
rough sections.
3
Some of the thread guides must be replaced
by a certified technician. If you feel damage
to one of these thread guides, contact The
Grace Company or your local dealer.
L-shaped Allen
Wrench 2.5 mm