JUKI MF-7900 Series Engineer's Manual page 182

B
❶
Loosen setscrews ❶ which are temporarily tightened. Adjust the projecting position of thread hook ❻ .
6.
(Caution) Switch ❸ of the solenoid valve remains in the ON state.
Sliding the air cylinder base (general asm.) ❷ in the direction A, the thread hanging hook ❻ moves to
7.
the direction C, sliding it in the direction B, the thread hook ❻ moves to the direction D. Move the air
cylinder base (general asm.) ❷ so that the clearance between the thread hook ❻ and the center of left
needle ❹ is 1 to 1.5 mm.
(Caution) Carry out adjustment with thread hook ❻ shifted to the right by its backlash.
Tighten setscrews ❶ . (tightening torque : 4 to 5 N·m)
8.
❷
A
– 168 –
❸
1 to 1.5 mm
(Clearance)
❹
❺
C D
❻