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ADJUSTMENT
OF
THE
NEEDLE
THREAD
TRIMMER
* Attaching the trimmer
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Loosen
se
tscrew 0 , and
ad
ju
st the height
of
tr
immer
@)
.
Set
the height
of
trimm
er
@)
as low as possible, pr-
ov
id
ed that it does not touch work
clam
p ch
eck
8 , in order to minimize the length
of
remaining thread on the
needle after trimming
* Closing timming
of
th
e needle thread trimmer
Adjust the closing timing
of
the needle
th
read trimmer
so
th
at
the trimmer completely closes when it
adva
-
nces farthest .
To perform the adjustment, loosen screw
0 , and move needle thread trimmer driving plate A 0 back and forth,
When the needle thread tiimmer driving plate is moved towards you, the closing timing ls
de
la
yed
with r
ed
u-
ced
amou
nt
of
closing.
(NOT
E)
Confirm that an allowance of 0.3 to
O.Smm
is left between the blades
of
the trimmer when
the
tr
immer has completely closed.
If
there is no such allowance the trimmer would interfere with the operation
of
the needle
thread
tr
immer driving plate, preventing smooth movement
of
lifting lever 0.
* Opening timing
of
the needle thread trimmer
Adjust the timing
of
th
e thread trimmer
so
that the trimmer begins to open gradually at a distance of approx.
2.5 to
3mm
(3/32" to
L/8
") from the start.
To
pertorm the adjustment l
oose
n screw 0 , and move needle thread trimmer driving
plate
B 0 back and
fo
1th.
As it movestowards
yo
u, the trimmer begins to
open
ea
rlie
r.
(NOTE) Take care not to cause the already fixed needle thread trimmer driving plate A to get out
of
position.
From the library of: Superior Sewing Machine & Supply LLC