Baby Lock BL-5180 Service Manual page 54

7. Differential feed adjustment
Correct positon : On condition diff.lever "N" position and stitch length dial "4",
How to adjust
a) Move differential feed adjusting lever to get same moving length of
main and sub feed dog.
b) Loosen two screws of differencial feed positioning ratchet.
c) Hold connecting shaft by finger, move differential feed adjusting lever to "N"
position.
d) Tighten two screws.
main feed dog(rear) and sub feed dog (front) move same length.
Connecting
shaft
Main feed dog
Screw
Differential feed
positining ratchet
(rear)
6
Differential feed
adjuating lever
Sub feed dog
(front)
Stitch length
dial