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(14) Adjusting the feed relation
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
Standard adjustment
1. Changing the stitch length
It is possible for the standard stitch length to adjust up to 0.9 to 3.6 mm.
Turning feed adjust knob
❶
clockwise increases the stitch length and turning it counterclockwise de-
creases the stitch length.
❶
❷
❸
2. Changing the differential feed ratio
Differential feed ratio is 1 : 0.9 to 1 : 1.8 (stitch length : less than 2.5 mm).
C
❽
❼
❼
❽
1:1.8
1:1
1:0.9
Differential feed ratio :
1 : 0.9 to 1 : 1.8
A
1:1.1
1:0.9
1:0.6
Differential feed ratio :
1 : 0.6 to 1 : 1.1
B
❺
❹
❻
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