SINGER W712 - Manual (Page 26)

CLEANING AND OILING THE SHUTTLE
(See Fig. 53 and 54)
The stitch forming mechanism occasionally becomes
clogged with loose threads and lint. This will mterfere
with the efficient operation ot the mmchme. mieaning
and removal of the lint will safeguard the performance.
To remove the shuttle assembly, proceed as tollows :
1. Turn the balance wheel until the needle reaches its
highest position. Tilt head back on its hinges.
2. Remove bobbin case. ^
3 . Turn the two shuttle race cover clamps (B) outward
and remove the shuttle race cover (C) and the shuttle
body (D).
4. Clean the shuttle race, the shuttle, and shuttle race
cover by removing all threads, lint, etc.
When the cleaning has been completed, proceed as
follows to replace the shuttle assembly : ^
1 . Turn the balance v/heel until the needle reaches its
highest position. ^ _
2 Place shuttle body, (D), in race against shuttle driver and adjust into posi ion.
3. Replace shuttle race cover, (C), fitting pin at lower edge into notch, and lock into position
wth shuttle race cover clamps, (B), making certain the clamps nave been snapped secure y
into position.
4. Put bobbin into bobbin case. ^ ^
5. Put the bobbin case into the shuttle, fitting tongue into notch t ot race cover.
Fig. 54