Brother International EF4-B561 Service Manual - Page 29

Stitch, Length, Differential, Adjustments

Get Brother International EF4-B561 PDF manuals and user guides View all Brother International EF4-B561 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 29 highlights

6. STITCH LENGTH AND DIFFERENTIAL FEED ADJUSTMENTS EI STITCH LENGTH ADJUSTMENT A desired stitch length can be selected by means of the scale on math feed arm 0 and the numerals on the scales of main feed arm and differential feed arm indicate stitch length in millimeters, but actual stitch length varies with the kind and thickness of the material and the differential fedd. Loosen 0 0 CD 0 Loose Cr' CD 02 O0 Procedures 1 Pull and open feed mechanism cover (B) e on the back of the machine. 2 Loosen nut Q. 3 Move feed ling indicator plate Q until its red mark is in line with that number on the scale which represents your desired stitch length. 4 Retighten nut CI securely. 2 DIFFERENTIAL FEED ADJUSTMENT Differential ratio produced by the movement of differential feed arm is to be dicided depending on normal stitching, stretching and shirring. Calculation method of differential ratio: Differential ratio - The scale on differential feed arm The scale on main feed arm * In case of the maximum stitch length in normal stitching refer below. Differential ratio 3.6 0 9 8 7 6 1 5 4 5 2 2 1 In case of normal stitching Set the scale on differential feed arm way as the scale on main feed arm 4). the same Differential ratio =!!=O.6 B 7 05 6 5 4 3 3 2 2 In case of stretching Set the scale on differential feed arm Q to a smaller number than that of the scale on main feed arm Q. - 27 -

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
6.
STITCH
LENGTH
AND
DIFFERENTIAL
FEED
ADJUSTMENTS
EI
STITCH
LENGTH
ADJUSTMENT
A
desired
stitch
length
can
be
selected
by
means
of
the
scale
on
math
feed
arm
0
and
the
numerals
on
the
scales
of
main
feed
arm
and
differential
feed
arm
indicate
stitch
length
in
millimeters,
but
actual
stitch
length
varies
with
the
kind
and
thickness
of
the
material
and
the
differential
fedd.
0
CD
0
0
2
O0
Loosen
Cr'
CD
Loose
Procedures
1
Pull and
open
feed
mechanism
cover
(B)
e
on
the
back
of
the
machine.
2
Loosen
nut
Q.
3
Move
feed
ling
indicator
plate
Q
until
its
red
mark
is
in
line
with
that
number
on
the
scale
which
represents
your
desired
stitch
length.
4
Retighten
nut
CI
securely.
2
DIFFERENTIAL
FEED
ADJUSTMENT
Differential
ratio
produced
by
the
movement
of
differential
feed
arm
is
to
be
dicided
depending
on
normal
stitching,
stretching
and
shirring.
Calculation
method
of
differential
ratio:
Differential
ratio
—
The
scale
on
differential
feed
arm
The
scale
on
main
feed
arm
*
In
case
of
the
maximum
stitch
length
in
normal
stitching
refer
below.
Differential
ratio
3.6
1
4
2
0
9
8
7
6
5
5
2
Differential
ratio
=!!=O.6
0
5
4
3
B
7
6
5
3
2
1
In
case
of
normal
stitching
Set
the
scale
on
differential
feed
arm
way
as
the
scale
on
main
feed
arm
4).
the
same
2
In
case
of
stretching
Set
the
scale
on
differential
feed
arm
Q
to
a
smaller
number
than
that
of
the
scale
on
main
feed
arm
Q.
—
27
—