SINGER W951 - Manual (Page 33)

TROUBLE CHART
Trouble Probable Cause Correction
If Machine
Binds Thread or lint in
race way
1—With take-up lever in highest position, tilt head back on hinges
and remove bobbin rase.
BOBBIN
CASE BOBBIN NOTCH RACE
LATCH RACE COVER HOOK CLAMPS
2— Turn clamps outward and remove race cover.
3— Remove hook. *
4— Clean thread and lint from all parts, including race.
5— Run a drop of oil along rim of shuttle.
6— Replace shuttle, then race cover. Snap clamps into place.
7— Grasp threaded bobbin rase by latch and replace, fitting tongue into
notch of race cover.
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