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2.6
Thread
pulling
spring
2.6.1
Spring
tension
Rule:
Regulate
the
spring
tension
according
to the
type
of material
and
thread,
so
that
the
spring
0/17
operates
regularly
and
returns
again
up
to
the
stop.
Correction:
- Loosen
t/17
screw.
- Regulate
the
spring
tension
by the washer
T/17.
2.6.2
Spring way
Rule:
The
spring
0/17
should
rest
against
the
stop
relaxed
when
the
eye
of
the
needle
dips
into
the material.
Correction:
- Loosen
r/17
screw.
- Turn
the entire
thread
tension unit.
2.7
Pneumatic
automatic
tacking
device
(366-76-12-RDAP)
Explanation:
In case
of the automatic
seam tacking,
the piston rod of the
cylinder
J/19,
moving
in and out,
switches
the
stitch
regulating
_ lever
from forward
to reverse
stitches
and viceversa.
Rule:
Adjust
the
speed of the piston rod, moving
in and out,
so thath with
the
stitch
length
being
set for its maximum value
the piston
rod
moves
into
its
end
positions
gently.
Correction:
By means
of the lower
throttle
adjust
the
speed for moving
in the
piston
rod and by the upper
throttle
for moving
out.
mnn
oo
3.
Adjustments
on the Quick digital
control
panel
Explanation:
In addition
to the adjustment
numbers
accessible
to the operators
there
are numbers
that
should
be called
up only by the technicians.
(See
the
adjustment
number
list).
The values,
adjusted
already
before
supplying
the machine
and
adapted
to the respective
machine
type,
can be modified
by the
technician
for optimizing
the working
process.
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