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【8】ADJUSTING THE FEED DOG & STITCH LENGTH
8-1 Feed dog height & tilt
When the feed dog is at the top of its stroke, the feed dog
teeth should be 1.0~1.2mm above the top surface of the
needle plate. Adjustment is made with screw A. The
fine tilt adjustment is made by loosening nut C and
turning screw B.
8-2 Stitch length
The stitch length can be adjusted from 2 to 5mm with no
step. The following table shows the stitch length with
the number of stitches within 1 inch (25.4mm) and
30mm.
No. of stitches
Stitch
length(mm)
within 1"
within 30mm
2
13
3
8.5
5
5
< To change the stitch length >
1.
Loosen bolt A while checking the direction in which
the bolt is loosened.
2.
Insert a screwdriver from hole C.
To decrease the stitch length, turn screw B
clockwise. To increase the stitch length, turn screw B counterclockwise.
3.
After this adjustment is made by turning screw B, be sure to tighten screw A.
< Note > Be sure turn off the motor when changing the stitch length.
< Note >
Since the needle guard is installed on the feed dog bracket, the relationship between
the needle and the needle guard varies according to the stitch length. Therefore readjust the
needle guard if the stitch length is changed.
8-3 Feed dog height & tilt (Model SPF)
When the feed dog is at the top of its stroke, the feed dog teeth should be 1.0~1.2mm above
the top surface of the needle plate. Adjustment is made with screw A.
The fine tilt adjustment is made by loosening nut C and turning screw B.
8-4 Left and right feed dog height
（Model SPF）
Feed dog divides between left and right side.
(See the illustration), left side feed dog D and
right side feed dog E can be adjusted
independently.
When the bottom of left feed dog D bring
down to the pin F, both left and right feed dog
height would be same. In case of the
adjustment, loosen screw A and make the left
feed dog higher than the right side how much
the angle of the curved waist band is.
Original both feed dog position at the
beginning are set to the same height.
15
10
6
DLR
series
11
【9】ADJUSTING THE PRESSER FOOT
9-1 Presser foot pressure
The presser foot pressure should be as light as possible,
yet be sufficient to feed the fabric and produce uniform
stitches. To increase the presser foot pressure, turn the
adjusting knob clockwise (see the illustration).
9-2 Position of the presser foot and foot lift
Fit the presser foot properly onto the presser bar.
Make sure the needle drops correctly to the center of the
needle drop hole on the presser foot.
Adjustment is made by loosening screw A.
■Foot lift
The presser foot should be 7~10mm above the top surface
of the needle plate.
Set stopper B at the required position.
Fasten the presser foot lift lever with nut C so that the
lever cannot be lowered.
【10】ADJUSTING THE REAR PULLER DEVICE
10-1 Manual lever
To position or remove the fabric, raise manual lever A.
10-2 To adjust the puller pressure
The puller pressure should be as light as possible, yet be
sufficient to feed the fabric smoothly.
To increase the pressure, turn adjusting knob D
clockwise.
To decrease the pressure, turn adjusting
knob D counterclockwise.
DLR
series
12
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