Highlead GG0028 User Manual
Customer Service
Copy
HIGH
LEAD
GG0028
SINGLE NEEDLE FLAT BED ZIGZAG INDUSTRIAL
SEWING MACHINE
Instruction Ma'Bnal
Parts
SHANGHAI HUIGONG
N0.3
Catalog
SEWING MACHINE FACTORY
SINGLE NEEDLE FLAT BED ZIGZAG INDUSTRIAL
SEWING MACHINE
Use
of
Machine
The machine is used chiefly for stitching upper clothing such as attaching top collar to the under collar tack,
stitching collar comers, attaching collar to neck opening. and for other operations consisting in joining rather
heavy
materials.
1
Specifications
Machine speed
Stitch type
Stitch length
Stitch windth
Zigzag stitch width position
Needle
Hook
Thickness
Threads
Presser foot stroke
of
sewn material
2200rpm
two-thread zigzag lockstitch
up to 5
up to
median
Schmetz
mm, forward and reverse
10
mm
134-35
Nos.
110-
130
R251
up
to
8
mm
cotton threads: 14,5 tex x 3 - 35,5 tex x 3
+ synthetic threads: PES
8
mm
with hand
10
mm
with knee
lever
lever
25
tex x 1 x 2
25
tex
x 1 x 3
Clear work space
fMachine stand
Weight
+With
of
machine head
synthetic threads, be sure adequately to reduce the machine speed.
265 x 120
standard steel profile stand
35
kg
mm
Technical description
The machine
hoqk, situated in the bed plate and equipped with positive bobbin case opening, rotates in a plane perpendicular
to the direction
with a gear ratio
It is adapted
1.
for setting the stitch length and stitch width. The reverse stitching is actuated by a hand
presser
increased strain are seated in antifriction bearings. The machine has a group wick lubrication and separate
automatic lubrication
with a screw attachment
GG0028
of
feed
of
2 to 1, and from the upper shaft to the lower one, by endless belt with a gear ratio
for
forward and reverse sewing, and the front part
foot, by a hand lever or by the left-side treadle. The most important parts
is designed
of
sewn work. The drive is transmitted, from the lower shaft to the hook, by gear wheels
of
the hook. In its basic version, the machine is supplied without lighting, but it is fitted
for
fixing a suspension-type lighting.
as
a flat-bed zigzag two-thread lockstitch sewing machine. The rotary
of
the machine column holds control elements
lever, the lifting of the
of
mechanisms subject to
of
1 to
2
Machine
Equipments
and
their
Use
Ordering
522
522
522
522 792 112 010 00
522 794 222 010 00
The Equipments are supplied
791
124 027
791
149
791
995 014 00
No.
001
35
00
Name
Stitching set - throat
Overedging equipment
Plug for the hole overedging operations
Built-in frictional bobbin winder
Suspension-type lighting
on
special order only.
plate with needle aperture 1.8 mm;
needle Schmetz 134
of
work area
•
35
No. 120
3
..
Example
of
application
Thickness
of
sewn
work
Needle
Schmetz
134 -
35
Threads
RPM
zigzag stitch,
width up to 10 mm
zigzag stitch,
width up to 8 mm
zigzag stitch,
10
width 6 to
zigzag stitch.
width up to 1
zigzag stitch,
width up to 8
zigzag stitch,
width up to
With blend materials, high sewing
thread ruptures and skipped stitches. To prevent it, the machine speed should
mm
0
mm
mm
10 mm
cotton 4 mm
cotton 5 mm
cotton 4 mm
with seam crossing
up to 8 mm
cotton up to 8 mm
blend materials
up to 5 mm
blend materials
up to 8 mm
speed
makes the material melt
Nos.
100-110
Nos.
100-110
Nos. 130
Nos.
110-130
Nos.110
Nos.
110-
130
and
cotton
14,5texx2x2
cotton
20texx3
cotton
20 tex x 3
35.5 tex x 3
cotton
20 tex x 3
35.5 tex x 3
PES 14,5 tex x 3
PES 25 tex x 1 x 2
stitck onto the needle, thus causing
25
tex x 1 x 3
be
adequately reduced.
3,800
3,400
3,000
2,500
3,400
2:soo
4
I. INSTRUCTIONS FOR SERVICING OF MACHINE
A.
GENERAL
1.
Read the instructions
INSTRUCTIONS
of
the manual carefully and adhere to them.
2. During transport and
marks on the packing.
3. Report any damage which may have occurred during transport to the railway authorities
forwarding agents at once.
report any discrepancies to
4. Having transported the machine to its work site, remove the preserving grease coating and all dirt.
Make sure that no machine part has become loose and that its mechanism is free
5. Lubricate
Before lubrication, always check whether the lubrication places are clean.
frequently in small quantities. Those
~1rain
6. Clean
material. During the cleaning,
7.
Once a week, during through cleaning, carefully check the whole machine to see that no parts are
damaged and that
immediately. Once a year, a general overhaul should be carried
dismantled, thoroughly cleaned, all individual pieces and parts
be
and faulty
8.
Adhere to the safety regulations. Never clean the machine or repair defects while the machine is in
operation. Do not remove covers or other safety devices.
the
machine daily!
should
the
be
machine daily, especially the parts which become choked by impurities from the sewn
or
worn
while unpacking the machine, proceed
Immediately after unpacking, check the contents against the order and
us.
We
cannot recognise delayed claims.
parts
of
the machine which are subjected to increased friction or
lubricated several times a day as needed. Top up the oil tank
carefully check that the machine parts have not become loose.
all machine machanisms operate correctly. Any faults ascertained must be repaired
{)Ut
pieces repaired or replaced.
in
accordance with the instructions and
or
of
any foreign bodies.
It
is advisable to lubricate
ofthe
hook as needed.
out, i.e., the whole machine should
of
electrical equipment inspected,
to the
9.
Electrical equipment
electrotechnical and safety regulations.lfthe machine is provided with a plug always make sure before
plugging in that
yourself but
call in an expert electrician.
10. We cannot assume any responsiblity
of
the machine should
all switches are off.
be
kept in a good and safe state in accordance with the
Never
try to repair any defects
for
faults resulting from non-observance
5
of
the electrical equipment by
of
these instructions.
B.
PACKING,
1.
UNPACKING, CLEANING
Packing
of
machine
AND
LUBRICATION
OF MACHINE
The machine head is seated in a separate case, the stand either in crating
severe climate conditions).
2.
Unpacking
When taking
arr
ived in good order. Report any damage which has occurred during the transport
authorities
to
prevent damage to machine parts.
and report any discrepancy immediately, as we cannot consider belated claims.
3.
To
set
After
the machine has been brought
seated properly, a gap
stand plate on the whole
4.
To
set
Fix the machine using the levelling foot
is designed as a stable unit with the stand requiring no fixing
5.
To
clean
of
machine
over
the machine from the railway authorities or in the works ascertain whether it has
or
to the forwarding agents
the
and
and
machine
fix
lubricate
the
on
of
machine
immediately
Futher
stand
to
its work site, set it
approximately 1.5
of
its circumference.
oft
he stand fitted with adjusting screw. Otherwise, the machine
the
machine
(Fig.
. Unpacking should be carried out carefully so as
check the accessories
on
the rubber washers
mm
will appear between the bed plate and the rim
1;
Tabs.
16, 17)
to
the
of
floor.
or
in a separate case (for
to
the railway
the machine against the order
of
the stand. When
of
the
Before putting the unpacked machine into
operation, remove the protective grease coating and clean the machine thoroughly.
oiling all machine mechanisms and the
is recommended heavy white vaseline oil
of
with viscosity
oil can, drip oil into the marked holes
machine arm once a day, before the begin-
of
ning
oil at the indicator
gear
from the felt inlay situated
botton. The hook and its mechanism should
be cleaned several times a day. Apply two or
three drops
the hook and
let the machine run at high speed, then stop
it
with its mechanism
should be carried out daily. especially
the end
dirt from drying
nism.
refill the shafts
with lubrication grease. Before proceeding
to clean the machine, thread and take the
hook bobbin out
the machine should
settled oil and
the work shift. Check also the level
wheels
wipr.
=.
f-7
of
Fromtimetotime,
50
of
the hook gear box receive oil
of
kerosene
of
the surrounding mechanism,
"•Jc;nedout dirt, and oil the hook
the work shift, in
on
\1,
of
of
2.s1
mm
of
the hook and its mecha-
Tab. 16) and (6, Tab. 17)
the hook. Once a week,
all impurities.
at 20°C. With
the hook oil tank. The
on
the gear
to
all soiled parts
wlth oil. This cleaning
or::~er
to
use grease nipple to
be
-thoroughly freed
For
hook
an
of
the
of
box
of
after
prevent
-of
0
Fig.
6
6.
To
Warning I
Before proceeding
switch and hold your feet away from the machine stand treadles
machine start by treadle actuation.
adjust
the
hook
lubrication
to
clean and lubricate the machine, be sure to switch
(Fig.
2)
off
the main
in
order to avoid accidental
To adjust the oil flow
screwdriver the adjusting pin
the front side of the oil tank under the bed
plate, from zero to maximum (to the left,
anticlockwise). Adjusted
still provides for a minimum oil flow to the
tion
hook preventing it from seizing.
machine has been put into service, check at
regular intervals the oil level both
oil tank and
machine arm.
Caution
At the beginning of work after a relatively long
interval, e.g., at the beginning
shift,
it
the gathered superfluous oil, either by letting
the machine
by producing a few stitches (20
mately) on a test material, to prevent the
threads and, consequently, the sewn work
from getting
in
I
is advisable to remove from the hooks
run
soiled
to
the hook, tum with a
(1
), located
at
zero, the regula-
After
in
the oil tank situated on the
of
the morning
idly for a short period time
em
by oil.
on
the
the hook
or
approxi-
C.
TO
1. General
2.
3.
PREPARE THE MACHINE
inspection
Inspect the machine thoroughly for loose parts
the ha
nd
wheel by hand, check first whether it revolves freely and whether the machine is adjusted
correctly. Further check the correct working of the mechanism
presser foot by means of the knee lever, and the reverse stitching by means of the hand lever
the left treadle.
Sense
The handwhe el must turn
Electrical
An electrician connects the machine to the mains. Switch
pulley turns
must must
the electric motor.
of
rotation
equipment
in
the correct direction, i.e
be
taken out
An
Warning
Avoid any intervention into the electrical equipment of the machine but call
Unqualified intervention involves the risk
FOR
SEWING
as
well
as
for the presence
controlling the lifting and sinking
in
the
direction
and
the
cable must be switched over
incorrect sense of rotation of the pulley is inadmissible.
I
of
the red arrow
.,
to the left.
on
the belt guard.
on
the electric motor
It
this is not the case, the plug of the lead-in cable
on
the plug or
of
accident by electric shock.
of
foreign bodies. Rotating
and
check whether the
on
the terminal board of
in
an
electrician.
Fig. 2
of
the
or
of
7
7 2
.
/
/l
..
··.
1
: ·
' . i
··
. I
...
.w
: ...
5
.... ·
o ..
Fig. 3
4.
V-belt
The V-belt can
of
power with losses reduced to minimum.
middle part between the hand wheel and the
will yield some
increases both the power consumption and the wear
follows:
the low
falling out the groove of the pulley, remove the V-belt, mount a new one onto the pulley
electromotor, fix it by attaching back the sheet piece,
insert it into the hand wheel groove. Lift the machine to its operational position, check the V-belt for
correct tension, and mount the upper belt guard.
and
its
tension
be
its holder after the loosening
20
Tilt
the machine
er
belt guard the sheet piece fixed by screws to the stand plate
(Fig.
3)
easily tensioned by means
mm
sideways. Excessive tension
head,
of
the electromotorthat can
of
two screws. The correct belt tension ensures transmission of full
To
check the tension
pulley;
screw out th·e screws (4), remove the upper belt
if
the belt tension is correct, the pressed-on part
of
the V-belt reduces the machine output and
of bearings. To remove the V-belt, proceed as
pas
of
the V-belt, depress
s it between the tank and stand plate,
be
displaced
and
protecting the V-belt from
in
the guiding
it
lightly
guard (1), and from
in
of
the
the
and
The
size
of
the
n~edle
ear.lt
is advisable
the needle
the beginning
the thickness
excessive strain (impacts at the needle punches into the
by friction between the needle and the sewn
correct needle course
stitches.
S-twist threads should be used
thread. A coarse thread
the needle
threads, the sewing speed should be reduced accordingl
7.
To
insert
To
facilitate the needle insertion, sink the presser foot onto a bit
toward you until the needle bar has reached its
between the needle
of
the needle bar and insert the needle
directed toward the operator. Looking through the cross slot provided in the needle
the needle shaft has reached the bottom
screw. Each time you insert a
the centre
but choose
ear
but ·helping to prevent the
of
of
Only high-class threads should be used. Especially suitable are conical cross-wound bobbins.
ear
reduces the machine performance and incerases its trouble incidence.
the
needle
of
the needle aperture provided
it
with respect to the character
depends on the size
to
choose a rather thin needle, just permitting the free passage
stitching after the previous thread trimming. The needle size should
sewn work. A needle too thin with respect.to the thickness
follwed by irregular formation
fort
he needle, white both S-twist and Z-twist thread is suitable as lower
or
one which has to overcome considerable resistance when passing through
(Fig. 4)
bar
and the throat plate has been obtained. Loosen the screw (8) on the lower part
new
needle check whether it is straight and whether
of
the thread, since it must pass freely through the needle
upper
thread from being threaded out
work, upper thread tension, heat generated
work, etc.) and exposed to the risk
of
the upper thread loops and resulting
y,
to prevent the threads from melting.
of
material and rotate the hand wheel
top
position,
up
to the stop. Be sure that the long groove
of
the needle channel, and
in
the throat plate. Never use a needle chosen haphazardly
of
the sewn work and to the thread size.
i.
e.,
until the greatest possible distance
fix
ofthe
thread through
of
the needle ear at
be
adequate to
of
sewn work is subject to
of
deviations from the
in
skipped
With
synthetic
of
the needle
bar
check whether
the needle by tightening the
it
passes through
is
Warning
Before proceeding to exchange the
needle, be sure to switch
switch and hold your feet away
stand treadles
chine start by treadle actuation.
8.
To
thread
Put the bobbin
sufficient portion
thread guide
thread guides
disks
(2), the thread guides (3 and 6). and the auxiliary
thread guide
then downwards through the thread guide
the
lower
on the needle bar, and from there to the needle.
Insert it into the needle ear from the front side
(i. e., from the side
side.
switch
from the machine stand treadles in order to avoid
accidental machine start by treadle actuation.
the
of
(8), then lead it through the adjusting spring
(9) into the thread take-up le
thread guide (7) to the thread guide (5)
off
the main switch and hold your feet away
I
off
from
the machine
in
order to avoid accidental ma-
upper
the bobbin stand, then
(4) and (1) between the tensioner
thread
on
the bobbin stand, unwind a
of
it, and pass it through the
of
Warning
Before proceeding to thread
the machine, be sure to
(Fig . 5)
thr
the operator) to the rear
I
the main
ough the
ve
r(A),
(6) and
Fig.
4
1
9
6
2
8
3
7
5
9
9. 1 o
wind
the
hook
bobbin
To
wind the lower thread on the
built-in
mant No. fi22 792 112
onto the f1ont
thread from the bobbin stand through
provided on·the arm
thread guide
winder shaft, wind it a
lhe
insert
pressure so as to cut
the spring. When mounting the bobbin on
winder
the notch
lever
bobbin winder operative.
and by this the winder as
the bobbin width. As soon as the bobbin
the
the spring (2) cut
lever
screwdriver and adjust the angular position
bobbin winder, supplied separ
s1de
of
of
(6)
to
the bc.bbin moJ!1ted on the
boboin, lead the thread end to the spring (2),
it
between the spring coils, and
shaft be sure that the carrizr spring enters
of
the bobbin front. s • .,inging
(5) between the bobbin fronts will render the
winder
drive and braking the winder shaft.
off
the threads end.
(5) mounted on the disconnecting pin (3), hold the discormecting pin in its position with a
(Fig. 6)
h~"
010
OIJ,
can
the machine
the bobbin stand
i~w
times anticlockwise on l
it
i:Jy
the knife situated inside
Switch on the
well During the winding, the thread is evenly distributed along the whole
ol<
:-obhi1 , a
<.:taiJ
as
Eq
t•it~
b.;..
rnot:Ptec
ann.
Lead uc(;
!he
aper1.ures
and
in the
apply
mild
the
the
control
electric
For
motor a 1d
is
fully wound, the control
The
winding is completed. Using the knife mounted
timing
the winding stop, loosen the screw (4)
of
the control
-----
6
....
4
Fig.
6
deprese the right treadle to start the machine
of
lever
springs off thus disconnecting
in
of
the control
lever
on the disconnecting
pm
as required.
10.
To
take
out
the
hook
bobbin
Rotate the hand wheel until the
open the lock
the bobbin
Loosen the loc
11.
To
thread
Insert the fully wound bobbin into the bobbin case and the thread end first into the notch
cast1
and then under the pressure spring
into the hook.
tilt
the
lock fixing the bobbin in the case.
short distinct sound. The correct position
important, because otherwise a needle rupture
machine start.
12.
To
catch
of
the bobbin case and take the bobbin case out. As long as the bobbin case lock is open
is
held in the bobbin case. Release the lock and take the bobbin out
k,
turn the bobbin case upside down, and the bobbin will fall out.
Warning
Before proceeding to exchange the bobbin
switch and
machine start by treadle actuation.
the
the
I
hold your feet away from the machine stand treadles
lower
thread
To
prevent the bobbin from falling out
lower
thread
thr
ead take-up
lever
has reached its top position. With your left hand,
of
the hook, be sure to
of
the bobbin case. Insert the bobbin case with the bobbin
of
the case, while beimg inserted into the hook,
With
your thumb, push the bobbin case in until you hear a
of
the bobbin case
or
another breakdown could occur at the foll owi
in
the hook signalled
of
the bobbin case.
sw1tch
in
order to avoid accidental
by
off
the main
of
the bobbin
this sound is very
ng
Grasp lightly with your left hand the end
re
volve
the hand wheel towards
top positions, thereby catching the lower thread. Draw then lightly the upper thread until the lower
thread shows through the aperture provided in the throat plate. Lay the two thread ends in the direction
behind the needle. While threaded, the machine
inserted under the presser foot. Both when starting and when finishing the sewing, the thread take-up
lever should be placed in its top position to avoid the risk that the upper thread in its top position to
avoid the risk than the upper thread
~ro
of
the upper thread without stretching i
u
until the threaded needle reaches subsequently its bottom and
may
by started
will thread out and possibly catch in the hook course.
10
only
after
t.
With your right hand
a bit
of
material has been
13.
Sewing-
Insert the material to be sewn under the presser foot and switch on the electromotor. Start the machine
by
gradually depressing the right treadle. The sewing speed increases up
with the treadle has reached its lowest position.
is
disengaged, the electromotor braked, and
the material but guide it only. By pulling the material, you. bend the needle with the risk
it in case
collisions
machine stop, set the needle to its top position,
it, and cut the two threads with scissors.
To
observe:
Having put the new machine
or
four weeks, when the machine is running-in, increase its speed gradually from about 3 000 stitches
per min. and check carefully its running. Throughout this time, pay'special attention to the machine
lubrication. By keeping to these rules you will obtain a long service life and perfect precision
machine even at its full performance.
II. INSTRUCTIONS FOR ADJUSTMENT OF MACHI NE MECHANISMS
work
p_roper
By
releasing the treadle, the clutch
the
machine stopped. During the sewing, avoid pulling
of
a collisions with the edge
of
this kind burr the needle aperture which, in its tum, causes
in
use do not charge it fully from the very beginning. During the first two
of
the
needle aperture provided in the throat plate. Repeated
lift
the presser foot, remove the sewn work from under
After
that, the machine is ready for stitching another seam.
to
the maximum obtained
of
the electromotor
of
breaking
threa·d
ruptures.
After
of
the
the
Th
is
section
ad
ju
stments, requiring more time, should
1.
Stitch length adjustment
The stitch length can be steplessly ad
turning the
the machine arm, from zero to 5 mm. By turning
it in the sense of the arrow
you increase the stitch lengh.
sen
d
th
towards the machine bed plat
the
position and the machine restarts forward
in g.
2.
To
Before any adjustment
width, the machine must be stopped with the
needle outside the sewn
lever
wise) and held there until the adjustment is
carri
turned
from zero to 10
By
up
width by displacing the locking lever (5)
of
the Manual describes adjustments of the type that can be carried out
(Fig . 7)
knob (4) provided
se
of the arrow "
ec
rease i
er
adjus
displacing thellever to the right, i.e., towards the hand wheel, you increase the zigzag stitch width
to the maximum, by displacing it to the left, you decrease it
t.
For reve
the left treadl
lev
er automatically resum
t t
he
(5)
must be turned to the left (anticlock-
ed out, because its norm
to
the right, serves to lock the adjusted stitch width. The stitch width can
8"
rse stitchi
e,
zigzag
mm
by means of the l
on
the column
"A"
(i e ..
to the righ t),
by
turning it in the
(i.
e.
to
the left), you
ng,
or the hand lev
e.
When released,
es
its previous
stit
ch w
idth
of
the zigzag stitch
work. The
al
position,
be
carried out by a skill
jus
ted by
of
depress ei-
er
(1)
6
stitch-
(Fig. 7)
loc
king
i.
e.,
ever
(3) prottuding over the cover o
to
the right.
on
the work site. Larger
ed
sewing machine mechanician.
•
be
adjusted steplessly
ft
he zigzag stitch mechanism.
dow
n to zero. Lock the adjusted stitch
3
5
4
1
Fig. 7
11
3.
Thread tension
The
tension of the upper
the middle layer of the
right, i.e., clockwise,
to the
thread tension,
By
turning
consequently,
inversely .lfthe lower
thread tension
of stitching.
4.
To adjust the feed-dog height above the throat plate (Fig.
The
height
of
seWn
material.
required heightofthe
the
teeth horizontally,
of
the
teeth
the
screw (1).
~djustment
and
the
sewn
material. To adjust the upper
to
increase the tension, or inversely, to
use
the
screw
situated in
the
screw to
the
by
of
the
teeth of
by
correspondingly adjusting
the
tension of
thread
means
To
of
the
adjust
feed-dog
loosen
right
the
lower thread that
tension
the
tensioner nut will
feed-dog
it,
loosen
teeth,
the
lower thread
the
you
increase
has
been
(A)
should
the screw (2) of
and
retighten
screw(1)
of
the
must
be
middle part of
the
pressure
passes
originally
be
sufficient,
be
the
the
feed
angular position of
so
interrelated that
thread
the
of
between
adjusted
as a rule,
adjusted
the
screw
lever(9)
to
lifting lever (8)
thoroughly
on
tension,
pressure
the
the
correctly,
8)
0.8 - 1.2
the shaft(7)
the
turn
decrease
spring
spring
to
with
eccentric
the
stitch binding
the
tensioner nut either
it.
To
adjust the
spring
on
the
on
the
bobbin
and
the
bobbin
the
adjustment
resorte
mm,
on
the
desired quality
according
the
shaft (6), adjust
a screwdriver. To adjust
and
adjust
pin
(5), then retighten
place
bobbin
case
case,
oft
he
to
the
the
rear
in
lower
case.
and,
and
upper
kind
the
part
5.
To adjust the movement
Loosen
dog
throat plate,
movement, approximately 5
6.
To adjust the throat plate (Fig.
The
needle
otherwise
the
two
to a position
then
throat plate
passes
throught
damaged
screws
in
which
rotate
(B)
must
since
of
the needle with respect to the feed-dog
of
the
lower
belt
wheel
and
tum
by
hand
the
the
the
feeding
hand
mm
be
properly
centre
it
would
movement
wheel
above
8)
of
unfavourably affect
so
the throat
seated
the
needle aperture.
as
and
ends
to
plate,
fixed
and
position
and
by
The
the
the
hand
wheel
the
feed-dog
the
needle
retighten
screws
needle
quality of stitching.
teeth
point,
the
(3)
in a position
aperture
screws
so
as
are
at
during
of
must
6
Fig. 8
to
set
a level
its
downward
the
belt
ensuring
not
be
the
feed-
with
wheel.
that
burred
the
the
or
7.
To adjust the presser bar pressure
The
presser bar
machine
the right increase the
must
adjustment of
of
arm
be
sufficient
the
stitch length.
pressure
and
accessible
to
the
presser bar
is
actuated
pressure,
ensure
by
the adjusting
through
reliable
pr~ssure-depends
a hole provided
by
turning it
and
to
the
continuous
the
screw
in
the
left,
decrease
feeding
uniformity of damage-free
12
located
latter.
even
it.
By
The
at
the top
under
turning
pressure
the
upper
cover of
the
adjusting
ofthe presser foot
speed.
feeding
On
as
the
well
screw
correct
as
that
the
to
8.
To
adjust
The hook must be so interrelated with the needle that at the moment when the hook point begins to
take
hook point, at
is not adequate
screw{6)
plate.
9.
To
adjust
up
the
of
in
height
upper
th~
to
the
carrier(13)
the
hook
the
needle
thread loop, the upper edge
maximum
this requirement, loosen the respective screws, remove the front plate, loosen the
bar
(Fig.
4)
of
the needle ear
stitch width and in the left position
of
the needle
bar(10),
adjust the needle
is
approximately 0.6
oft
he needle
bar
mm
bar.lfthe
correctly, and mount the front
needle
course
under the
bar
height
Adjust
bottom position and reascends by 2.8
axis, and the distance between the needle and hook must be
the throat
the screws, and mount the throat plate.
10. To
After
a gap
11. To
lfthe
reverse stitching. The adjustable eccentric
shaft and commands the length
adjustable one,
The stationary eccentric is secured by two screws located in its
eccentric is constant so that the height
height adjustment
eccentricity
dog
the screw (4)
the middle
the
stitch width to zero and tum the hand wheel towards you until the needle
+ 0.2
mm.
plate,loosen
adjust
adjust
the
hook
the
hook
course adjustment, loosen the fixing screw and adjust the hook holder(2) so as to obtain
of
approximately 0.7 mm between the holder lug and the bottom of the inner part
the
elliptical path
machine is adjusted correctly the feed-dog describes an elliptical path both with forward and with
commands
of
the adjustable eccentric equals zero (so that
holder
with the feed-dog to the centre
of
the
of
the feed-dog movement.
the screws, adjust the angular position
holder
of
the feed-dog teeth.
lever
(Fig.
2)
of
the feed-dog movement (Fig.
is
positioned by means
of
feeding. Another eccentric, stationary and situated in front
the correct interrelation between the
of
the height
The
adjustment should
of
the slot provided
(9) on the feed shaft (7). Ensure that the feed-dog reaches its top height about
In
this position the hook point must lie
0.1
mm
or
less.
If
it
is not the case remove
ofthe
hook on the hook shaft, retighten
8)
of
a pin in the aperture
major
and the minor axe
collar. The eccentricity
of
the ellipse remains the same regardless
be
carried out as follows: When the
no
feeding takes place) adjust the feed-
in
the throat plate, having first loosened
bar
reaches its
in
the needle
of
the hook.
of
the lower
of
the ellipse.
oft
he stationary
of
of
the
the
12. To
13. To
adjust
Loosen the screw
regulation knob to its zero position, adjust the
position corresponding to zero, retighten the screw
equally long at forward and reverse stitching.
adjust
During the stitching, the gap between the sides
and the hook holder
eccentric (6) to facilitate the movement
situated on the hook box at the end
holder and the recess provided in the
i.e.,
Screw out first the four screws (3)
inlay out
by the pin
and the lower surface
opening
required to let the thread pass. Having adjusted the opening
the length
the
hook
of
feeding
of
the lever on the pin
opening (Fig.
9)
(7) is positively periodically opened by means
of
the lower shaft. Adjust first the gap between the lug
inner
the axial play between the lug
of
it.
For
adjustment, loosen the screw (1) fixing the position
of
the opening
of
the hook
(4) with the opening lever and adjust a gap
of
the hook by tapping lightly on the opening lever. At the same time, set the
lever
so as to produce·a gap
of
0.5
of
the reverse stitching hand lever, set the stitch length
of
upper thread when leaving the hook. The eccentric is
part
box
mm
between the recess
13
traversable sleeve
of
the lever, and check whether the feeding is
of
the groove provided
of
the hook, and simultaneously, the opening lever,
lever
and the face
cover
(9), remove the cover, and take the lubricatiqn
of
0.8 mm between the lug
of
the adjustable eccentric to a
in
the inner part
of
the opening lever (8) and
of
the inner part
of
the bobbin case (5) contacted
of
ofthe
inner part and the hook holder
lever, retighten the screw (1).
of
of
of
the opening lever
the hook
the hook
the hook.
of
Before proceeding to
remove the throat plate. The timing
lever
opening
carried uot only while the machine
sewn off. Loosen the two screws
eccentric
lower shaft so as to time the opening
inner part
moment when the upper thread begins
across the recess
and the lug
correct passage
hook bottom, when the opening
preaches the opening lug to open the passage
around the inner part
thread. The correct adjustment is best checked
on
the adjusting spring that must only slightly
..
move while the thread passes freely.
adjustment
insert the lubrication inlay, and mount the
of
cover
To_exchange
14.
with respect to the looper is best
(6}
and set its angular position on the
of
the hook to begin prior
of
the hook holder. Check also the
oft
the hook box.
carry
out the adjustment,
is
(2)
to
of
the inner part
ofthe
upper thread around the
of
the hook
he
eccentric, retighten its screws,
the
presser
foot
of
the hook
lever
for
the upper
After
(Fig.
4)
of
the
being
of
the
of
the
to
the
pass
a~
the ·
7
8
1
5
6
2
9
3
Fig. 9
To exchange the presser foot
lifting
lever
(12). Lift also the needle to its
_foot
presser
foot' from the presser bar. To insert the presser foot, proceed inversely. Having fixed a new presser
foot check, in its top position, whether the needle bar, during its movement, does not collide with the
pr.esser
together with the washer (7), and remove first the finger guard (9) and then the presser
foot.
(1
},
first
lift
the presser bar (11} to its top position and lock it by the hand
top
position, then loosen the attachment screw (5)
--
15.
To
dismantle
5
and
mount
the
drive
7 2
'···
.....
y(l
: ·········
belt
·
(Fig. 10)
...•...
I
···
....
J4
....
1
.
··
...
4
of
the
··.
··
.....
·
...
14
Fig. 10
Screw
16.
out
the
three screws (4), remove the belt guad (1) from the machine arm, tilt the machine head
onto the suppoting
the two screws
Pass the
wheels, and mount the complete hand wheel back on the upper shaft in such a position that the
screw
the
its operational
To
drive
(2), considered in the sense
upper
shaft, when tightened. Retighten the screws {2)
adjust
the
.pin
situated on the bed plate, take the V-belt out
ofthe
hand wheel groove, loosen
(2), and remove the hand wheel from the machine arm and from the upper shaft (5).
belt (7) through the aperture thus created in the machine arm, set
of
rotation
position, i.e., into the rim
needle
punches
longitudinally
of
the hand wheel, comes
of
the hand wheel, tilt the machine back to
of
the stand plate, and mount the belt guard.
into
the
centre
to
sit on the small surface
of
the
slot
of
the
(Fig. 4)
it
on the two belt
throat
plate
first
of
Adjust· the zigzag stitch to the zero width and
reaches its bottom position. The needle should be in
longitudinally and transversely.
work)
screw
out the two screws
In case
of
the front plate, remove the latter, loosen the securing screws (2 and
3), and finely adjust the angular position
machine arm so as to set the needle longitudinally into the centre
screws
To
When
completely but leave a minimum play between them and the needle bar holder in order not to obstruct
the transverse
Absence
damages
17.
To
(Tabs.
Adjust
reaches its bottom position.
the transverse and
the
part. Then loosen with a screwdriver the two screws
holder
the plug. Check the needle punch position at the maximum stitch width and be sure that there is a play
between the needle and the slot side in each
adjusted at
wheel
adjusted
(2
and 3) and
observe:
tightening the adjustment screws {4)
of
play between the adjusting screws {4) and the needle bar holder involves the risk
to
the needle
adjust
the
mount
movement
bar
needle
punches
the front plate.
of
the needle
mechanism.
transversely
1, 3)
the
zigzag stitch to the zero width and turn the hand wheel until the needle
In
this position, the needle should be at the centre
in
the longitudinal direction.
cover
{25, Tab.
{4) so as to set the needle at the centre
zero, the needle bar with the needle should react with no lateral movement to the hand
rotation.lf
by
an experienced sewing machine mechanician since such adjustment is rather extensive.
1)
out
of
the front part
it does react, the basic zero position
tum
the handwheel until the needle barwith·the needle
the centre
of
longitudinal deviation {i.e., in the feed dfrection
of
the screws
for
bar
holder required for the zigzag stitch.
If
of
the machine arm, and the opposite plug, out
{4)
both on the front and on the rear side
adjusting the needle position, do not tighten them
into
the
centre
this is not the case, screw out the screw (26) and take
of
the throat plate slot both
of
the front plate slot. Retighten the
of
the
slot
of
the
bar
ofthe
(27, Tab. 3) and adjust the complete needle bar
of
the throat plate groove, and reinsert the
lateral position
of
of
the needle. With zigzag stitch width
the zigzag stitch drive mechanism should
throat
with the needle
groove both
of
sewn
of
of
its rear
cover
the
of
plate
in
and
be
18.
To
adjust
ment(Fig.11)
If
the machine is adjusted properly the nee-
dle
bar
ment, even at the maximum width
zigzag
by about
correct adjustment, screw out the four screws
{6),
remove
screws
shaft
handwheel
(2) thoroughly, and mount the upper
(1) by screwing in the four screws (6).
the
needle
begins to
stitch, only afterthe needle reascends
4
{2)
of
carry
mm
above the throat plate.
the upper cover {1), loosen the
the
gear
(4), adjust the angular position
accordingly, retighten the screws
bar
lateral
out its lateral
wheel (3) on the upper
move-
move-
of
of
cover
the
For
the
1
\
\
I
i
6 2
4
15
3
Fig.
11
Loading...