Pfaff hobbylock 788 Owner's Manual - Page 34
Upper, knife, arresting, tightening, screw, upper, arrested, axially., Cleaning, knives - knives for
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Upper knife arresting Sewing very thick fabrics and workpie ces with different ply thicknesses: On this machine, all kinds of fabric from extremely thin to extremely thick can be processed. When sewing extre mely thick fabrics or workpieces with different thicknesses, the screw of the upper knife must be tightened, as shown in the illustration. By tightening screw 37, the upper knife is arrested axially. Note: When sewing thin or medium fabrics, screw 37 of the upper knife arresting system must be loosened by about 2 turns, so that the upper knife can move axially. Cleaning the knives Disengage the upper knife (see top of p. 23). Use the lint brush (accessories) to remove lint from upper and lower knife. 32
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Upper
knife
arresting
Sewing
very
thick
fabrics
and
workpie
ces
with
different
ply
thicknesses:
On
this
machine,
all
kinds
of
fabric
from
extremely
thin
to
extremely
thick
can
be
processed.
When
sewing
extre
mely
thick
fabrics
or
workpieces
with
different
thicknesses,
the
screw
of
the
upper
knife
must
be
tightened,
as
shown
in
the
illustration.
By
tightening
screw
37,
the
upper
knife
is
arrested
axially.
Note:
When
sewing
thin
or
medium
fabrics,
screw
37
of
the
upper
knife
arresting
system
must
be
loosened
by
about
2
turns,
so
that
the
upper
knife
can
move
axially.
Cleaning
the
knives
Disengage
the
upper
knife
(see
top
of
p.
23).
Use
the
lint
brush
(accessories)
to
remove
lint
from
upper
and
lower
knife.
32