– 117 –
A
B
1-3. Adjusting the vertical stroke of the intermediate presser
* 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.)
By removing the rubber plug in the face plate
cover, adjustment can be performed without
removing the face plate cover.
❷
1-2. Adjusting the height of the feeding frame
1) Loosen setscrews
❷
located on the right 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 mov-
ing after face plate bearing
❼
has come in contact
with the spring pin.
1. Loosen the setscrew
❹
.
2. Lightly tighten the pressure adjusting screw
❺
and give a pressure to the face plate
bearing
❼
. At that time, move the presser
foot face plate
❻
vertically, making sure that
uneven application of torque can be avoided.
3. Tighten the setscrew
❹
.
1. 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.
2. The pressure adjusting screw
❺
is
not attached to the sewing machine.
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
A
❶
❷
❸
A
❹
❻
❺
(SM6050660TP)
❼
❼
❹
❶