Adjusting The Vertical Stroke Of The Intermediate Presser; The Moving Knife And Counter Knife (Bird's Nest Reducing Type) - JUKI AMS-221F3020RSZ/AW-3 Instruction Manual

1-4. Adjusting the vertical stroke of the intermediate presser

WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
A
A
❷
❶
By removing the rubber plug in the
face plate cover, adjustment can be
performed without removing the face
plate cover.

1-5. The moving knife and counter knife (Bird's nest reducing type)

WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
❷
A mm
❸
❻
Dimension A (mm) varies with the sewing specification (diameter of the needle hole guide).
Adjust dimension A referring to the table shown below.
Sewing specification
Diameter of needle hole guide
Part number of needle hole guide
A mm
B
Throat plate
❹
19 mm
❶
❺
Type H
ø2.0 / 2.4
40229581 / 40229583
40229580 / 40229582
3.0 mm
* Turn ON the power once, and turn OFF the
power again after making the intermediate
presser in the lowered state.
1) Remove face cover.
2) Turn handwheel to make the needle bar come
down to its lowest point.
3) Loosen hinge screw ❶ and move it to the di-
rection A to increase the stroke.
4) When marker dot A is aligned with the right
side of the outer periphery of washer ❷ , the
vertical stroke of the intermediate presser
becomes 4 mm. And, when marker dot B is
aligned with the right side of the outer periphery
of the washer, it becomes 7 mm. (The vertical
stroke of the intermediate presser is factory-set
to 4 mm at the time of delivery.)
1) Carry out adjustment after replacing the
thread trimming knife or the needle hole
guide.
Loosen adjusting screw ❶ so that a clearance
of 19 mm is provided between the front end
of the throat plate and the top end of thread
trimmer lever, small ❸ . To adjust, move the
moving knife in the direction of arrow.
Loosen setscrew ❺ so that a clearance of A
2)
mm is provided between needle hole guide
❷ and counter knife ❹ . To adjust, move the
counter knife.
– 136 –
Type G
ø3.0 / ø4.0
40225679 / 40227941
40229622 / 40229623
3.4 mm