Singer 191D-20 - Belt Cover and Bobbin Winder Installation

3.3
Belt Cover and
Bobbin Winder
Installation
Caution
For safety, the
belt cover should
be installed.
The left and
right parts
of the
bobbin winder
should be parallel
to the plate
belt
slot on the
machine table.
Drill four holes J1 ', '8 ', 'C' and 'D:
in the machine table for screws
(Figure 6).
Insert support '1' in the threaded
hole in the housing.
Install the
front belt cover '3' and
get the hand wheel in the middle of
the cover hole.
Install the back
belt cover '2' at
holes 'C ', 'D'.
Fix the
front belt cover '3' on the
support with screws '4 ', '5' and
washers ' 6' . The tightening torque
for the screw '4' is about 30 kgfxcm,
and for the screw '5' is about 25
kgfxcm .
Move the back belt cover '2' back-
ward,
until its rubber touches the
front belt cover '3', move it again for
0.5-1.0 mm and fix it with screws
and washers.
Fix
bobbin winder '7 ' at hole A ', '8'
with screws and washers.
~ 47 ~
1 • 63.5 .1
75 .5
N
CD
Fi gure 6
High Speed Straight Lockstitch Sewing Machine ! Instruct ion M an ual an d Parts List 7
From the library of: Superior Sewing Machine & Supply LLC