15) Tension Adjustment of Lower Thread Presser
After cutting thread, adjust tension when pulling out the thread holding by lower thread presser
①
to 0.03~0.08N(3~8gf)
in case of filament thread (#60).
[ Fig. 42 ]
A. Take off mess unit
②
.
B. Draw out the mobile mess
④
by moving handle
③
and
hang the thread on the groove as shown in the figure.
C. Cut the thread by turning the mobile mess
④
to original
status. Then, measure the tension when pulling out the
thread holding by lower thread presser
①
.
D. Adjust tension of lower thread presser
①
to 0.03~0.08N
(3~8gf) by turning screw
⑤
.
16) Exchange of Fixed Mess and Moving Mess
[ Fig. 43 ]
■
Removing method
A. Remove joint screw
①
and
②
, and remove mess
unit
③
.
B. Remove joint screw
④
and remove mess presser
⑤
.
C. Remove fixed mess
⑥
and mobile mess
⑦
.
[ Fig. 44 ]
■
Attachment Method
A. Attach fixed mess
⑥
and mobile mess
⑦
to mess
bracket
⑧
.
B. Attach mess presser
⑤
with joint screw
④
.
C. Put mess unit
③
close to section of needle plate
⑨
and attach with joint screw
①
and
②
.
32
③
⑤
④
②
①
①
③
②
⑨
④
⑤
⑦
⑥
⑧