VI. HIGH SPEED, SINGLE NEEDLE, LOCKSTITCH INDUSTRIAL
SEWING
MACHINES
WITH
AUTOMATIC
THREAD
TRIMMER
AND
AUTOMATIC
REVERSE
SEWING
UNIT
Model
DDL-555-2-2B
DDL-555-2-4B
1.
How
to
sew
automatically
(D If the push
button
(i) is pushed, the machine will become
in reverse sewing
state
and reverse sewing can be performed.
(D As long as this
button
is kept pressed,
the
machine will
do
reverse
sewing.
(DIf the
button
is released, the machine will return to normal
sewing
condition.
@ When half-stitching process is to be performed, use the
normal
back
lever.
2. Adjusting the switch lever of reverse sewing
CD
The height of the push button (D is not specially set, so
adjust it to an
appropriate
position.
(DLoosen screw (2), move the push
button
up and down
and adjust to the proper height. After adjustment, securely
tighten
the
screws.
Fig.
40
Fig.
41
3. Adjusting
the
pitch of reverse sewing
Due to the adoption of push button system, until the operator gets used to the system, some
times the length of the reverse sewing might become longer than necessary.
In case when the pitch of the
reverse
sewing
may be lessened than the normal
sewing,
do as
follows
and the pitch of the
reverse
sewing
will
become
smaller
and accordingly the length of the
reverse
sewing
will
become
shorter.
Loosen
the
screw
(D
from the bottom of the bed and
raise
up the stopper
(2)
and the pitch
of
reverse
sewing
will become
less.
If this is lowered fully to bottom, the pitches of the normal
feed
and
the
reverse sewing will become same.
Fig.
42
With
the
exception
of
above,
all
operating
instructions
and
adjustments
are
same
as
DDL-555-2,
Please
refer
to
INSTRUCTION
BOOK
on
DDL-552,
553,
555.
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27
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