JUKI SC-956, Instruction Manual

Page: 35 / 185

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4-3-3. Changing the initial value of the presser foot pressure
If you want to change the initial value of the presser foot pressure, the initial pressure can be changed
by changing the installation position of presser bar position bracket (upper)
❶ .
Where necessary, adjust the initial value of the presser foot pressure according to the sewing process.
[How to adjust]
1) Turn the power to the sewing machine OFF.
2) Detach the face plate.
3) Loosen presser bar position bracket (upper)
clamp screw ❷ . Adjust the vertical position
of the presser bar position bracket (upper) ❶
in reference to marker line A on presser bar
❸ .
* Tighten presser bar position bracket (up-
per) clamp screw ❷ . Attach the face plate.
Be aware that, for the F type sewing
machine, the presser foot lifter stroke
has to be decreased in the case the
position of presser bar positioning
bracket (upper)
❶ is lifted by 5 mm or
more.
Position of presser bar position bracket (upper) ❶
with respect to marker line dot A on presser bar ❸
Presser foot pressure (reference)
G type F type
8 mm above Approx. 0 N (0 kg)
5 mm above Approx. 0 N (0 kg)
0 (just beneath the marker line)
(Factory-setting at the time of shipment)
Approx. 17N (1.7 kg) Approx. 12N (1.2 kg)
1 mm below Approx. 21 N (2.1 kg) Approx. 13.5N (1.35 kg)
4-3-4. Manual lifting of the presser foot
When the power to the sewing machine is in the
OFF state, the presser foot can be lifted / low-
ered by moving presser bar cap
❶
up or down by
hand. Carry out this procedure for changing the
gauge or adjusting the needle entry area.
❶
A
❷
❶
❸