SINGER W1550 - Manual (Page 47)

CLEANING THE SHUTTLE
Note;
If the machine turns hard, has a bind, or
becomes noisy, these are all symptoms of
thread tangled in the shuttle mechanism
or an accumulation of dust and lint that
is interfering with the smooth action of
the shuttle, A thorough cleaning usually
corrects the problem.
SHUTTLE CLEANER
cleaner which removes accumulated lint
and thread from the shuttle race to help
keep it clean and prevent jamming.
If thread gets caught in shuttle by turning
hand wheel backwards or stitching without
fabric in the machine, the thread will break
and be swept out of the shuttle. The
machine will not jam. If machine becomes
stiff for a moment, turn hand wheel toward
you to free it.
Should the shuttle cleaner jump out from
the race, insert cleaner in space A, with
the protrusion B fitting in slot C, forming
a perfect half circle with the driver D.
TO REMOVE SHUTTLE:
Raise needle to its highest position anc
remove bobbin case. Turn levers awa^
from shuttle and lift our retaining ring anc
shuttle, by grasping center pin.
Clean the reverse side of feed dog with a
small brush. Remove line and thread from
all parts of shuttle and wipe with a lightly
oiled cloth.
TO REASSEMBLE:
Hold shuttle by center pin and fit careful­
ly back into shuttle race, forming perfect
circle with shuttle driver.
Replace retaining ring polished side out,
making sure the bottom pin fits into notch.
Lock retaining ring by turning levers back
into position. Refit bobbin case with bobbin.