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(10) Adjusting the differential feed ratio
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
Standard adjustment
Differential feed ratio (Standard) Gathering 1 : 2, Stretching 1 : 0.7 /
60H ··· Gathering 1 : 1.7, Stretching 1 : 0.9
(Max.) Gathering 1 : 4, Stretching 1 : 0.6
(11) Longitudinal position of the main feed dog
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
Standard adjustment
When the feed pitch is maximized and the differential feed ratio is also maximized, the clearance of the
rear end of the feed dog and the throat plate should be spaced approximately 0.5 mm.
❶
❸
❶
❷
❹
A
❺
(Unit : mm)
A
Standard 19.6
60H 21.5
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