Bernina L460 - Differential Feed Adjustment

22
L 450
L 460
Adjusting and Setting
Differential Feed adjustment
The machine provides two feed dogs which move independently. Feed Dogs can be
adjusted to each other to transport the fabric evenly and to prevent unwanted puckering
or waving. Even while sewing the Feed Dogs can be adjusted infinitly variable.
The adjustment can be made in the range of 0.7 (stretching effect) to 2 (gathering effect).
Start with dial set to neutral (=1).
Set to required differential ratio using the Differential dial:
Setting Effect
2 Gathering
1.5 Light gathering
1 Neutral, no effect (Standard)
0.7 Stretching
A
Gathering
Differential feed 1 - 2
The front feed dog (B) makes a longer stroke than the back feed dog (C).
This results in more material beeing feed under the presser foot an thus avoiding
unwanted waving.
This setting may also be used to gather materials on purpose.
Stretching
Differential feed 0.7 - 1
The front feed dog (B) makes a shorter stroke than the back feed dog (C).
This results in the material under the presser foot beeing streched and thus avoiding
unwanted puckering.
2
1.5
N (1)
0.7
2
1.5
N (1)
0.7
2
1.5
N (1)
0.7
2
1.5
N (1)
0.7
2
1.5
N (1)
0.7
2
1.5
N (1)
0.7
C
C
B
B
B
C
2
1.5
1
0.7