12 - 29
Adjustment
12.05.27 Feeding motion of the main and differential feeds
Requirement
With the maximum stitch length set and the needle bar positioned 1.0 after t.d.c. (hole 4),
when the reverse stitch key is operated, there should be no feeding motion of the main
and differential feed dogs.
● While constantly operating the reverse stitch key, adjust the main feeding eccentric 1
(screws 2) in accordance with the requirement (the cutout on feeding eccentric 1 must
be visible).
● While constantly operating the reverse stitch key, adjust the differential feeding
eccentric 3 (screws 4) in accordance with the requirement (the cutout on feeding
eccentric 3 must be visible).
Eccentric 1 and 2 should not be axially displaced.
1
Fig. 12 - 28
4
3
2
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