Supplementary operating instructions
The
basic operation
of
th
ese sub-classes largely corresponding
to
that
of
the
basic class 104,
the
following instructions have
been confined
to
changes
in
the
basic instructions.
The
additi
o-
nal
or
new text illustrations wi
ll
be found
on
the
reverse
of
these instruction
s.
·
Components
104-4102
S
1 Thread guide
2 Presser
foot
pressure
adjusti
ng
screw
3 Thread reel pin
4 Adjustable
stop
for
rever
se
stitch
5 Handwheel
6 Righthand slider
7
Throat
plate
8 Feed dog
9 Lefthand slider
10 Double roller
foot
11
Thread guides
12 Lefthand needle setscrew
13 Head cover setscrew
14
Thread guide
Threading the needle thread
15
Needle thread tension
16
Thread guide pin
17
Thread take-up lever
18
Presser
foot
lifting lever
19 Lefthand thread preten-
sioni
ng
unit
20
Take-up lever
21
Righthand thread preten·
sioning unit
22
Righthand needle setscrew
23
Presser
foot
setscrew
24
Stitch length dial
25
Stitch length adjusting
lever for reversible feed
26 Adjustable
stop
for for·
ward stitch
1.
With sub-class
104
VN-2
sewi
ng
the
roller
foot
upwards
for
better threading results.
2.
Pass
the
upper needle thread 100, fig. 2, coming from
the
thread re
el
through
th
e
th
read guide holes in t he spool
holder
3. through the thread reel pin 3, fig. 1,
4. through the
top
eye
of
the
thread guide 1, fig. 2,
5. Between
the
disc
of
the pretensioning unit
21
6. twice around the left (rear) pulley of
the
needle
5. between
the
disc
of
th
e pretensioning unit
21
6. twice around the left (rear) pulley
of
the
needle
th
read
tension
15
7. across
the
pin 16
8. into
the
left (rear) guide of
the
thread take-up lever
17
9. through
the
top
eye
of
the
. take-up lever
20
(the
take-up
lever must be in its highest position)
10
. through
the
thread guide 14
11
. with sub-class
104-4102
S
through
the
righthand hole
11
, fig. 7,
with sub-class
104-102
:
through
the
righthand thread guide 11, fig. 6,
wi
th
sub-class
104\/N-2
:
through
the
front
hole 11,
fig
.
8,
and
12
. from
front
to
rear
(as
seen from the
front
of
the
sewing
machine)
thro
.ugh
the
!,ly
e
of
the righthand needle for
about
8 cm (3").
13
.
Pass
the
lower needle thread 101 , fig. 2, coming from
the
thread reel through the thread guide holes in
the
spool
holder
14
. through the thread
re
el pin
3,
fig
. 1,
15
. through the
bottom
eye
of
the
thread guide 1, fig. 2,
16. between
the
disc of the pretensioning unit 19
17. twice around
the
righthand (front) pulley
of
the
needle
thread tension
15
18
. across
the
pin 16
19. i
nto
the righthand (front) guide
of
the
thread take-up
lever 17
20. through
the
bottom
eye
of
the take-up lever
20
(the take-
up lever must be
in
its highest position)
21. through
the
thread guide 14.
22. with sub-cl
ass
104-4102
S
E
through
the
letthand thread guide 11, fig. 6,
with sub-class
104-102:
through
the
left hole 11, fig. 7,
with sub-class
104NV-2:
through
the
rear hole, fig.
8,
and
23. from
front
to
rear
(as
seen from
the
front
of
the
sewing
machi
ne)
through
th
e eye
of
the
left needle for
about
8 cm (3").
24. Eventually swi
ng
the
upper swinging roller
foot
again
downwards.
Replacing
the
needle holder ,
1.
Rotate
the
handwheel forwards until
the
needle bar reaches
its highest position.
2.
Slacken the screw 102, fig. 1.
3.
Pull
the
needle holder 103, fig.
6-9
,
out
downwards.
4. Insert the new needle holder in
the
inverse order taking care
that
the
nose 104, fig. 8 and 9 fits into
the
groove
of
the
needle bar.
Adjusting
the
needle holder (only
for
class
104-102)
1. With
the
needle holder 103, fig. 6,
the
needle clearance can
be adjusted as follows:
2. Slacken
the
screws
at
the
rear
of
the
needle holder.
3.
Move
both vices
105
to
the
desired needle clearance.
4. Re-tighten
the
screws.
Application
of
the sewing components:
Sub
-class
104VN-2
(Fig. 8)
Sub-class
104VN-2
S (Fig.
7)
The
sewing components
to
be found
on
this machine are
designed for twin needle coarse stitch ornamental seams with
ofset stitch (small n_eedle distance). Fig.
8.
Sub-class
104-102
The
sewi
ng
components
to
be found
on
th
is machine are used
for beaded seams with or without cord insert (larger needle
distance) as well as
the
alternative
of
a single
or
triple needle
holder for single
or
triple needle seams. Single
or
triple needle
holder
on
request.
Sub-class
104-4102
S
The sewing components
to
be found
on
this machine fig. 7 are
designed
for
beaded seams without cord insert (smaller needle
distance). By changing the sewing components,
the
machine
~an also be adjusted for sewing beaded seams
without
cord
insert with incision as well as for single needle coarse stitch
work. •
For
the
given needle width, use also
the
needle holder which
corresponds
to
it
(for this there are 3 size groups) and note
the
following few points:
-~
Bead seam (without use
of
scoring knife), fig. 3
Use
the
sewing components forming part
of
the
machine.
When stitching narrow curves and points make sure
to
let
the
left needle enter
the
same hole twice
at
lefthand corners and
to
turn
the
material by 45° every time.
This instruction applies
to
righthand corners accordingly.
Bead seam (with use
of
scoring knife), fig. 4,
on
request,
at
an extra charge.
Use
the
welting presser
foot
with scoring knife. The scoring
knife, which
is
merely clamped
on,
must
be
adjusted
at
a
height
to
fit the presser
foot;
t he leather should merely be
scored
but
not
cut
through.
Adjust
the
scoring knife
as
follows:
Slacken
the
lateral knife holder screw. The knife
is
merely
clamped
on
. Adjust
the
height of_
the
scoring knife. Tighten
th
e screw again.
Coarse stitch seam, fig. 5
Replace
the
twin needle holder according
to
the
instructions
given
in
the
section 'Replacing the needle holder' by a single
needle holder supplied
at
an extra charge,
on
request. Proceed
to
sew in the us
ual
way.
From the Library of Superior Sewing Machine & Supply LLC
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