Adjusting The Height Of The Feeding Frame - JUKI AMS-221F-2516 Instruction Manual

1-3. Adjusting the height of the feeding frame

WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
❸
❷
❹
❹
❾
❼
❶
❽
❺
❽
❾
(SM6050660TP)
❼
– 84 –
Loosen setscrews ❷ located on the right
1)
and left sides of feed bracket ❶ . Moving
cloth presser link ❸ to the direction A will
decrease the height of the feeding frame.
2) After the adjustment of the height of the
feeding frame, securely tighten the screws
❷ .
If the feeding frame still interferes with the face
plate bearing and the feeding frame height does
not change after the adjustment of the position
of work clamp link, adjust the pressure applied
to the face plate bearing to lower it as far as no
lateral play of the feeding frame occur.
At the time of delivery, work clamp foot has been
moved up and down to adjust the torque (sliding
torque) of face plate bearing ❼ to 0.98 to 7.84 N (100
to 800 g) applied when work clamp foot starts moving
after face plate bearing ❼ has come in contact with
the spring pin.
Loosen the setscrew ❹ .
1.
Loosen nut ❽ . Apply pressure to bed slide
2.
bearing ❼ by slightly tightening pressuriza-
tion adjusting screw ❺ . At that time, move
the presser foot face plate ❻ vertically,
making sure that uneven application of
torque can be avoided.
Tighten setscrews ❹ . Tighten nut ❽ .
3.
When the setscrew ❹ is tightened,
pressure kept applied to the face
plate bearing ❼ is changed.
Therefore, when the setscrew ❹ is
tightened, examine the amount of
the slippage torque.