Singer 211U157 - Page 16

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
TIMING BOBBIN CASE OPENER
Turn machine pulley over toward you until lower timing
r-,ark on need le bar is even with edge of need le bar frame
on
upward stroke of needle. VVhen needle bar is in this posi-
tion, reference mark A should line up with reference mark
S 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 drive in cap screw
shown in Fig. 33.
Tighten socket screws in opener driving
gear hub.
ADJUSTING BOBBIN CASE OPENER
The bobbin case opener, shown in Fig. 35, should be
set
so that it turns the bobbin case enough to make a
sufficient opening for the free passage of thread between
throat plate and bobbin case.
- 15 -
\
==1: /\
B A ,2
I \
CAP SCREW
SOCKET SCREWS
BOBBIN CASE
STOP
BOBBIN CASE--""',/
OPENA
Fig. 33
6,
,----
--- :::::, -~
~-- c::---, \
I
SOCKET SCREWS
Fig. 34
e
Fig. 35