25
19. PRESSER FOOT PRESSURE
ADJUSTMENT
The presser foot pressure for sewing based on
normal conditions should be set to N. Adjustments
some instances may be necessary. Increase or
decrease the pressure until you are satisfied with
result. Always test sew on a sample of your
before sewing on your garment.
in
the
fabric
The presser
foot pressure of this machine is pre-adjusted at the
factory to suit the sewing of medium weight fabrics.
* In such case, N for normal, 1 for the lightest
pressure and 7 for the heaviest.
* For lightweight fabric...Decrease the pressure.
* For heavyweight fabric...Increase the pressure.
20. DIFFERENTIAL FEED
The differential feed system consists of two sets of
feed teeth arranged one behind the other. Both feed
teeth work independently of each other to give
perfect results when sewing on speciality fabrics.
When the amount of feed by the front feed teeth is
changed in relation to the feed by the rear feed
teeth it will “stretch” or “gather” the fabric.
The differential feed ratio ranges from 1:0.6~1:2.0.
Adjustment is made by means of the differential
feed adjusting dial pictured at right.
Use the differential feed to prevent stretching of knit
fabrics and puckering of lightweight fabrics.
For cover stitch on normal fabric, set the differential
feed adjusting dial to N.
Set differential feed adjusting dial below setting "N".
Setting of adjusting dial depends on material being
sewn as well as the amount of desired gather.
Therefore set dial to suit the fabric and test sew
before sewing your garment.
Set differential feed adjusting lever knob above
setting "N". Setting of adjusting dial depends on
material being sewn as well as the amount of
desired gather. Therefore set dial to suit the fabric
and test sew before sewing your garment.
(1) TO SET THE DIFFERENTIAL FEED
ADJUSTING DIAL FOR GATHERING
(2) TO SET THE DIFFERENTIAL FEED
ADJUSTING DIAL FOR STRETCH
1.5
N
0.8
0.6
N
5
2
3
Stretch
Gathering
N
1.5
2.0
0.6
0.8
N
1.5
2.0
0.6
0.8
N
1.5
2.0
0.6
0.8
N
1.5
2.0
0.6
0.8
Summary of Contents for MK 4055
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Page 33: ...J1P17...
