JUKI LK-1900S Series Instruction Manual page 90

(7) Adjusting the button support rubber
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
❶
❷
(8) Adjusting the button support link
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
Loosen screw ❶ , and move button support link ❷ in the direction A to make early the opening of the
button support rubber when button clamp attaching base ❸ goes up. Move it in the direction B to retard
the opening of the button support rubber. The standard adjustment is to adjust so that the button support
rubber starts opening when button clamp attaching base ❸ has gone up by 1 mm.
❸
A B
Long slit
❷
To adjust the position of button support rubber asm.
❶ , loosen setscrews ❷ and ❸ , and adjust so that
the pressing section of the button support rubber can
press the center of the button at right angles to the
button. Then tighten the setscrews.
－ －
88
❶
❸