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9
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ADJUSTING THE FEED DOG & STITCH LENGTH
9-1 Feed dog height & tilt
When the needle bar is at the top of its stroke, the feed
dog teeth should be 1~1.2mm above the top surface of
the needle plate. Adjustment is made by loosening
screw A. Tilt adjustment is made by inserting a tool
from D and adjusting screws B and C.
After making this adjustment, make sure the feed dog
is parallel with the top surface of the needle plate.
9-2 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
Position
of pulley
Stitch
length (mm)
within 1"
within 30mm
S 2 13 15
M 3 8.5 10
L 5 5 6
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To change the stitch length
1.
Press push button A lightly with the right hand
until the end of push button A touches an inside
part and clicks.
2.
With push button A depressed, turn the handwheel
with the left hand until the push button goes
further into the depth.
3.
Press the push button strongly again.
Then turn the machine pulley to select the stitch
length as required.
< Note >
Before adjusting the height of the feed dog, tilt the
looper holder.
4.
Align the desired stitch length with alignment mark B.
Then release the left hand.
< Note >
Before changing the stitch length, be sure to turn off the motor.
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