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Pfaff 260 User Manual

Pfaff 260
90 pages
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As
the
regulating
slide
is
moved
to
the left,
the
roller rides
up
on
the conical
port
of
the
driving eccentric. The
farther
the
regulating
slide is moved
to
the
left, the
larger
will
be
the
throw
of
the
driving lever
ond
the
higher
the rota-
tional
speed
of
the
com assembly.
Thi
s
speed,
in
turn, determines
not
only the
length
o·f
the
design,
but
also
the
number
of
stitches it
contains
.
A
Iorge
throw
of
the driving lever
causes
the
com assembly
to
rotate
quickly,
thus
producing
fewer stitches
and
a
shorter
des
.ign (Figs.
46
and
50).
And
conversely, a small throw
of
the
driving lever
causes
the
com assembly
to
rotate
slowly, thus
producing
more
stitches
and
a
longer
design (Figs. 47
and
SO).
The
rotat
i
onal
speed
of
the com assembly
con
thus
be
var
i
ed
between
25
and
100 stitdhes
per
com revolution
and
design. The role
of
speed
is
controlled by
lever E (Fig.
113)
which is
arranged
on
the
top
cover
and
has
eight
graduations.
As
this
lever
is turned from
one
graduation
to
the next,
on
eccentric pin
on
the
pattern
length regu
lat
ing
crank
(50561)
engages
in
the
fork
of
the
regulating
slide (c in Fig.
109)
and
moves this slide lengthwise
of
the machine
arm.
Fig.
48
Cam assembly backlash
reta
in
er
3
5 7
26
fig.
49
Cam assembly feed clutch
Fig.
50
Various
pattern
lengths
as
are
ob
-
tained by setting lever E
(4
in
Fig.
46)
at
positions 1,
3,
5
and
7,
respectively.

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Pfaff 260 Specifications

General IconGeneral
TypeMechanical
Needle PositionAdjustable
Free ArmYes
Reverse StitchYes
Presser FootSnap-on
OperationManual
Buttonhole4-step
BobbinClass 15
Speed ControlFoot pedal
Stitch FunctionsZigzag
Needle PositionsVariable

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