7. Passing
the
needle thread
(D
(D
©
(4)
©
©
8. Adjusting
the
thread tension
Tension
decreased
Tension
increased
Thread
tension
disc
No.1
(The
length
of a
thread
remaining on
the
needle is
adjustable with the disc.)
Tension
\
increased
Thread
tension
disc
No.2.
(The
thread
tension
is
adjusted
with
this
disc.)
Tension
decreased
o
If
the
machine
stops
leav
ing the needle at a lower
position, tread on the pedal
backwards
for
performing
an idle
thread
trimming
before passing
the
needle
thread.
Then,
the
needle
will go up and stay at
the
highest position,
o
Pass
the
needle
thread
in
the order from
CD
to © as
shown
in
the
illustration.
Refer
to
the
INSTRUCTION
BOOK
separ
ately prepared for the model DDL-555,
DLN-
415, DLU-450 or DLD-432 for the method of
thread tension adjustment excepting the fol
lowing points;
1) Adjustment of the thread tension spring.
If the thread tension spring of
your
ma
chine
which
is
threaded
with
a
thin
cotton
or synthetic fiber thread like
Tetoron
or
Nylon thread has an excessive tension or
stroke, it may produce some skipped
stitched
at
the
end
of
a
seam
line
and
ac
cordingly the thread may not be trimmed
off
normally.
-
10
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