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4-3. Presser foot (Active presser device)
If the power to the sewing machine is turned ON while the material, etc. is placed under
the presser foot, the presser stepping motor will generate a specic sound during origin
retrieval. It should be noted that this phenomenon is not a fault.
2) Change the presser foot pressure as
desired by pressing
❷
. (Range of input
values on the panel is from -20 to 200.)
* Refer to the following for a rough indi-
cation of the input value on the panel
and the presser foot pressure.
3)
❸
.
Then, the sewing screen is displayed.
4-3-1. Presser foot pressure
The presser foot pressure is displayed in
section
A
on the panel. (Example of display
: 120)
[How to change]
1) Display the presser foot pressure entry
screen by pressing
❶
.
1. To avoid personal injury, nev-
er put your ngers under the
presser foot.
2. Be aware that the presser
foot pressure varies when
the presser foot or the throat
plate is changed.
Input value on the
panel
Presser foot pressure (reference)
G type F type
0 Approx.17N(1.7kg) Approx.12N (1.2kg)
G type : 120
F type : 90
(Factory-setting at
the time of shipment)
Approx.39N(3.9kg) Approx.20N (2kg)
4-3-2. Micro-lifter function
Sewing while lifting the presser foot by very small amount is enabled by inputting a negative value on
the panel.
* Refer to the table shown below for a rough indication of the relation among the value input on the
panel, the presser foot height and the presser foot pressure.
Input value on the panel Presser foot height
Presser foot pressure (reference)
G type F type
0 0mm
Approx. 17N(1.7kg) Approx. 12N (1.2kg)
-20 Approx 5mm
*1 The presser foot height 0 mm means the state the sole of presser foot comes in contact with the top sur-
face of throat plate.
*2 The presser foot pressure varies when the presser foot or the throat plate is changed.
*3 Range of input values on the panel is from -20 to 200.
1. Be sure to input a positive value on the operation panel in the case the micro-lifter func-
tion is not used. If not, the presser foot is slightly raised and the feed dog is unable to
provide a sucient eciency of feed.
2. In the case of using the micro-lifter function, the eciency of feed is likely to be insu-
cient. To achieve the sucient eciency of feed, reduce the sewing speed or help feed
the material by hand.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power o and ascertaining that the motor is at rest.
❷
❸
❶ A
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