
^
3^
• Adjusting; the gear play in the
hook
drive (Fig.
39)
3^.1
3^.2
3'i.3
3^1.^1
3'^.5
3'i , 6
35.
Loosen
the
oil
valve
Loosen
shaft
meshed
Loosen
enough
shaft.
Push
and
bring
stroke.
Move
is
a
needle.
In
this
Adjusting
screw
distributor
68l.
screw
bearing
with
screws
to
the
hook
hook
clearance
position
a
allow
the
shaft
the
679
683
68^
very
685
up
needle
of
needle
and
ring
(Fig.
(Fig,
slight
(one
the
hook
against
bearing
0,'l
fully
pull
bar
mm
rise
oil
by
^0)
and
39)
play.
shown
to
hook
to
68'i
between
tighten
and
tube
turning
turn
until
in
be
both
Fig,
moved
shcift
the
bottom
lengthwise
hook
screw
hook-to-needle
680
out
regulating
eccentric
gears
40)
on
bearing
of
until
tip
683.
of
hook
are
just
its
68'i
its
there
and
35.1
35.2
35,3
clearance
Bring
and
hold
gauge
bottom
Place
needle
and
Pull
wheel
c-clamp
bearing.
position.
tighten
the
(part
needle
c-clamp
bar,
out
carefully
is
(Fig.
needle
the
the
The
2,2-mm
No,
push
its
feeler
in
machine
hO)
bar
91-129
bar
686
it
screw.
in
contact
to
thick
bearing,
(part
up
gauge
sewing
is
the
60'i-9l)
No,
against
with
now
bottom
blade
88O
and
turn
direction
the
in
of
of
the
against
1^7/00)011
the
feeler
the
until
needle
its
needle
its
universal
the
balance
bar
stroke
the
gauge,
the
rise
39

63.^
Loosen
745
bottom
Their
the
ndjxistnient
locknuts
(Fig.
position
distance
thickness
72)
tighten
744 and
so
that
are
from
of
the
the
parallel
the
material
the
adjust
folder
pocket
locknuts
the
to
plate
(up
height
blades
the
pocket
depends
to
O.3
securely.
in
mm).
of
their
plate.
stops
on
After
63•5
63.6
Loosen
folder
slots
it
i s
Also
are
(see
very
in
in
sequence
proper
make
in
dotted
important
the
the
screws
blades
and
are
inserted.
sure
line
tirst
first
(see
adjustment
7'i6
so
not
with
lines
stage
and
below:
that
that
the
for
second
(Fig,
struck
the
corners
in
Fig.
the
or,
operating
tighten
72) and
pins
by
sides
edge
in
stage
re-position
747
are
the
pocket
of
of
the
73).
three-stage
screws
This
folder
of
sequences).
free
the
folder
pocket
adjustment
blades
the
folding
746
securely.
the
in
their
plate
sequences,
when
blades
plate
extended
After
is
1 o
2 d
3 e
a—^
Operating sequence of the edge folders
-i-b
! 1
— b
1
2 d + e
3
a+b+c
—1
o-hh
b
y,.y
d e
M.
c
1 a♦b
2 c
3 d
+e
a-^r--|^b
j 1
d—e
"T"
C .
72