Tension Adjustment Of Lower Thread Presser; Exchange Of Fixed Mess And Moving Mess - SunStar KM-2070P User Manual

15) Tension Adjustment of Lower Thread Presser

After cutting thread, adjust tension when pulling out the thread holding by lower thread presser① to 0.03~0.08N(3~8gf)
in case of filament thread (#60).
A. Take off mess unit②.
B. Draw out the mobile mess④ by moving handle③ and
hang the thread on the groove as shown in the figure.
C. Cut the thread by turning the mobile mess④ to original
status. Then, measure the tension when pulling out the
thread holding by lower thread presser①.
D. Adjust tension of lower thread presser① to 0.03~0.08N
(3~8gf) by turning screw⑤.

16) Exchange of Fixed Mess and Moving Mess

■ Removing method
A. Remove joint screw① and ②, and remove mess
unit③.
B. Remove joint screw④ and remove mess presser ⑤.
C. Remove fixed mess⑥ and mobile mess⑦.
■ Attachment Method
A. Attach fixed mess⑥ and mobile mess⑦ to mess
bracket⑧.
B. Attach mess presser⑤ with joint screw④.
C. Put mess unit③ close to section of needle plate ⑨
and attach with joint screw① and ②.
③
③
32
②
①
①
⑨
②
④
⑤
⑦
⑥
⑧
⑤
④
[ Fig. 42 ]
[ Fig. 43 ]
[ Fig. 44 ]