Differential Feed - Husqvarna H Class 200S Guia Del Usuario

DIFFERENTIAL FEED

The differential feed has two independent feed teeth, one front (A) and one rear (B).
Each feed teeth has an individual feed mechanism which enables fabric to feed at different
ratios.
POSITIVE DIFFERENTIAL FEED
WHEN SET FOR POSITIVE DIFFERENTIAL FEED, the front feed teeth (A) makes a
longer stroke than the rear feed teeth (B).
This has the effect of accumulating fabric under the presser foot to prevent the fabric from
stretching.
NEGATIVE DIFFERENTIAL FEED
WHEN SET FOR NEGATIVE DIFFERENTIAL FEED, the front feed teeth (A) makes a
shorter stroke than the rear feed teeth (B).
This has the effect of stretching the fabric under the presser foot to offset puckering.
Illustration
*I: Differential feed teeth
*II: Positive differential feed
*III: Negative differential feed
44
(B)
*
I
(B)
*
II
(B)
*
III
(A)
(A)
(A)