Changing Range Of Differential Ratio - Yamato VG3511-8F Instruction Manual

6. Adjustments

6.12 Changing range of differential ratio

Differential ratio 1:1.1 - 1:2
(1) Remove the side cover ① (three pcs. of screws).
(2) Remove the screw ② of the differential feed bar con-
nection ③ .
(3) Fix the differential feed bar connection ③ in the hole
④ with the screw ② .
Max. stitch length of the main feed dog is 2.3 ㎜ in a dif-
ferential ratio of 1:2, and 3.0 ㎜ in 1:1.5 respectively.
VG3511-8F
ＮＯＴＥ
Fig. 6-29
Fig. 6-27
Fig. 6-28
③
④
②
30
①
1:2 gathering
1:1.5
1:1.1
③
②