Instruction manual
15
VG3511-8F
①
gathering 【1:1.4】
1:1
uniform sewing
②
1:0.7 stretching
5.7 Adjusting movement of differential feed dog
Fig. 5-8
Fig. 5-9
The differential ratio has been set from 1:0.7 to 1:1.4 at
shipment.
When aligned the differential feed lever(right) ① with the
line ② of the differential feed graduations, the movement
of the differential feed dog is the same as that of the main
feed dog (differential ratio 1:1), resulting in uniform sewing.
(1) Loosen the lock nut ③ .
(2) Turn the adjusting screw ④ to adjust the movement of
the differential feed dog.
● To increase the movement for gathering, turn it clock-
wise.
● To decrease the movement for stretching, turn it coun-
terclockwise.
(3) Tighten the lock nut ③ securely.
gathering
5. Proper operation
Before operating, ALWAYS turn the power switch OFF and check that the machine has already stopped.
①
③
④
stretching