Pfaff hobbylock 788 Owner's Manual - Page 33

tightening

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1: Changing the lower knife Pull out the mains plug! Disengage the upper knife (see p. 23). Remove retaining screw 34 of lower knife 33. Turn seam width adjustment knob 26 at position 3 (smallest seam width). Hold the new lower knife in such a way that the pin extends into the front hole of the lower knife. Then screw down retaining screw 34 together with the pressure tab. Align the cutting edge of the lower knife so that it is flush with the needle plate surface. Before tightening the retaining screw, align the pressure tab. Reset the upper knife to cutting position. Set the required seam width at adjust ment knob 26. 31

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Changing
the
lower
knife
Pull
out
the
mains
plug!
Disengage
the
upper
knife
(see
p.
23).
Remove
retaining
screw
34
of
lower
knife
33.
Turn
seam
width
adjustment
knob
26
at
position
3
(smallest
seam
width).
Hold
the
new
lower
knife
in
such
a
way
that
the
pin
extends
into
the
front
hole
of
the
lower
knife.
Then
screw
down
retaining
screw
34
together
with
the
pressure
tab.
Align
the
cutting
edge
of
the
lower
knife
so
that
it
is
flush
with
the
needle
plate
surface.
Before
tightening
the
retaining
screw,
align
the
pressure
tab.
Reset
the
upper
knife
to
cutting
position.
Set
the
required
seam
width
at
adjust
ment
knob
26.
1:
31