Руководство По Работе для Brother 3534DT

English

This serger is equipped with two sets of feed dogs 
under the presser foot to move the fabric through 
the machine. The differential feed controls the 
movement of both the front and the rear feed dogs. 
When set at 1, the feed dogs are moving at the 
same speed (ratio of 1). When the differential feed 
ratio is set at less than 1, the front feed dogs move 
slower than the rear feed dogs, stretching the 
fabric as it is sewn. This is effective on lightweight 
fabric that may pucker. When the differential feed 
ratio is set at greater than 1, the front feed dogs 
move faster than the rear feed dogs, gathering 
the fabric as it is sewn. This function assists in 
removing the rippling when serging stretch fabrics.

0.7 - 1.0

 

Material is 
pulled tight.

Prevents thin 
materials 
from 
puckering

1.0

 

Without 
differential 
feed.

Normal 
sewing

1.0 - 2.0

Material is 
gathered 
or pushed 
together.

Prevents 
stretch 
materials 
from 
stretching or 
puckering

The normal setting is 1.0 on the differential feed 
adjustment dial.

To adjust the diffrerential feed, turn the dial on the 
right bottom of the body.

1

2

<A>

  

 

1 Less than 1.0   2 Greater than 1.0   <A> Selection mark

An example
When stretch material is sewn without using the 
differential feed, the edge will be wavy.

To get smooth fi nish, adjust the feed ratio from 1.0 
toward 2.0. 
(The feed ratio required depends on the elasticity 
of the material.)

The more elastic the material, the further toward 
2.0 the differential feed ratio should be set. Test 
sew with a scrap of the fabric to fi nd the correct 
adjustment.

When sewing thick non-stretchable material such 
as denim, do not use the differential feed as it may 
damage the fabric.

Turn the pressure adjustment screw on the top 
left of the machine. You can adjust by referring the 
value on the screw.

The normal setting is "2".

1

2

<A>

1 Less pressure
2 More pressure

<A> Selection mark