Brother International TZ1-B652 Instruction Manual - English - Page 35

Trouble, Check

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Trouble and Check Poin This sewing machine is so designed as not to require difficult and proffesional adjustments. Remember the following troubles which may possibly appear when basic adjustments are forgotten. Trouble 1. Material not feeding Cause Light pressure of presser toot 1) Needle bends or the top of needle is not sharp. 2) Improper setting of needle Check Point Increase the pressure by turning clockwise the presser adjusting scrw Change the incorrect needle tb new one Set needle correctly. (See page 4) 3) Swatch is pulled while sewing 4) Improper combination of needle, thread and material. 3. Upper thread 1) Incorrect threading of upper breakage thread 2) Threading at incorrect position 3) Too strong thread tension 4) Incorrect setting of needle Do not pull or depress the material which sewing In accordance with the material, select proper thread and needle. (See pgae 17) Thread correctly (See page 14) Make sure that threading is not made at incorrect See page 20 for straight stitch, or 22 for zigzag stitch See page 4 5) Use of wrong needle See page 4 2. Needle breakag 6) Use of thicker needle than the needle hole 7) Scratch on shuttle hook See page 17 Small flow - Big flow - burnish with sandpaper #800 repair is needed. 1) Incorrect threading of lower Thread correctly (See page 1 2) thread 2) Too strong tension of the tension spring of the bobbin case Adjust the tension by turning counterclockwise the countersunk screw on the tension spring. Decrease the tension of the upper thread also, otherwise the thread tension will not be good. 3) Scratch on shuttle Small flow - burnish with sandpaper #800 Big flow - repair is needed. - 33 -

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Trouble
and
Check
Poin
This
sewing
machine
is
so
designed
as
not
to
require
difficult
and
proffesional
adjustments.
Remember
the
fol
lowing
troubles
which
may
possibly
appear
when
basic
adjustments
are
forgotten.
Trouble
Cause
Check
Point
1.
Material
not
feeding
Light
pressure
of
presser
toot
Increase
the
pressure
by
turning
clockwise
the
presser
adjusting
scrw
1)
Needle
bends
or
the
top
of
needle
is
not
sharp.
Change
the
incorrect
needle
tb
new
one
2)
Improper
setting
of
needle
Set
needle
correctly.
(See
page
4)
3)
Swatch
is
pul
led
whi
le
sewing
Do
not
pul
l
or
depress
the
material
which
sewing
4)
Improper
combination
of
needle,
thread
and
material.
In
accordance
with
the
material,
select
proper
thread
and
needle.
(See
pgae
17)
3.
Upper
thread
breakage
1)
Incorrect
threading
of
upper
thread
Thread
correctly
(See
page
14)
2)
Threading
at
incorrect
position
Make
sure
that
threading
is
not
made
at
incorrect
3)
Too
strong
thread
tension
See
page
20
for
straight
stitch,
or
22
for
zigzag
stitch
4)
Incorrect
setting
of
needle
See
page
4
5)
Use
of
wrong
needle
See
page
4
6)
Use
of
thicker
needle
than
the
needle
hole
See
page
17
7)
Scratch
on
shuttle
hook
Small
flow
—
burnish
with
sandpaper
#800
Big
flow
—
repair
is
needed.
2.
Needle
breakag
1)
Incorrect
threading
of
lower
thread
Thread
correctly
(See
page
1
2)
2)
Too
strong
tension
of
the
tension
spring
of
the
bobbin
case
Adjust
the
tension
by
turning
counterclockwise
the
countersunk
screw
on
the
tension
spring.
Decrease
the
tension
of
the
upper
thread
also,
otherwise
the
thread
tension
wi
ll
not
be
good.
3)
Scratch
on
shuttle
Smal
l
flow
—
burnish
with
sandpaper
#800
Big
flow
—
repair
is
needed.
—
33
—