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Singer 211G146 Service Manual: Needle Bar Rock Frame Removal; Take-up Lever Removal

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BOBBIN CASE
STOP FINGER
BOBBIN CASE OPENER
REFERENCE
MARK A
CAP
SCREW
REFERENCE
MARK B
Fig. 33. Bobbin Case Opener Adjustment
GASKET
SOCKET
SCREWS
Fig. 34. Bobbin Case Opener Timing
REPLACING SEWING HOOK
CAUTION: The hook is equipped with a screw in the
hub for adjusting the vertical position of the hook
relative to the throat plate seat. This position is set
with a gouge at the factory. WHEN REPLACING A
HOOK, CARE MUST BE TAKEN TO SEE THAT THE
BOBBIN CASE STOP FINGER, SHOWN IN FIG. 33,
FITS CORRECTLY IN THE THROAT PLATE. For
correct adjustment, see instructions concerning hook
height adjustment on page 12.
ADJUSTING BOBBIN CASE OPENER
The bobbin case opener, shown in Fig. 33, should
be set so that it touches the bobbin cose as lightly
as possible and turns the bobbin cose enough to moke
a sufficient opening for the free passage of thread
between throat plate and bobbin case.
TIMING BOBBIN CASE OPENER
Turn machine pulley over toward you until lower
timing mark on needle bar is even with edge of needle
bar frame on upward stroke of needle. When needle
bar is in this position, reference mark A should line
up with reference mark B on hook saddle, as indicated
in Fig. 33. If opener shaft is out of time, tip machine
back and loosen socket screws shown in Fig. 34.
Return machine to upright position and turn opener
driving shaft with screw driver in cap screw shown
in Fig. 33. Tighten socket screws in opener driving
gear hub.
From the library of: Superior Sewing Machine & Supply LLC

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