Highlead GC0398-1, GC0398-1-D User Manual
Purchasing
Copy
Dept
HIGH
LEAD
GC0398-1/GC0398-1-D
Heavy Duty Top And Bottom Feed
(With Automatic Thread Trimmer)
Lockstitch Sewing Machine
Instruction Manual
Parts
SHANGHAI HUIGONG N0.3 SEWING MACHINE FACTORY
Catalog
CONTENTS
1.
PRECAUTIONS BEFORES STARING OPERATION
1)
Safety precautions · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
2) Precautions before starting operation · · · .. · .. · · · · ·
3) Precautions for operation conditions
2.
Specifications
3.
Installing the
4.
Adjust:Inent
1)
Adjust:Inent
2)
Adjust:Inent
....................................................................................................
belt"·
.. ·
.. · ..
· .. · .. ·
of
needle
bar
stop position
of"UP"
of"DOWN"
position
position ...
........
........................
.......................................................................
· .. ·
........
...........................................................................
···
........................
3) Confirm the stop operation then the plug (12 pins) corning from the machine head into the
·
·"
.. · .. ·
.. · ..
receptacle ..
5.
Lubrication
6.
Condition
7.
Adjust:Inent
............................................................................................................
of
oil
lubrication"··········
of
the hook
· · .. · .. · · · · · · .. · · · · .. · · · · .. · ·
.........
···
...... · ........
lubrication·.............................................................................
....................................................
....
· .. · ·
....
· · · · ·
....
· · ..
"·
.. · .. · · · · .. · .. · · .. · · · ·
· .. · .. · .. · .. · .. · .. · .. ·
........
· .. · .. ·
..
· .. · .. · .. · .. · .. · .. · .. · 2
.........................................................
···
···
...
···
....
· .. · .. ·
..
· .. o •
....
······
..................
• • • •
.........
·" • ....
···
• • • •
···
··· ··· ···
..
• • • • • • •
.. ·
...
...
.. • .. • .. • ·..
· ..
····
....
· .. · 1
...
......
.. ··· .. · 3
..
.
..
2
2
2
2
3
3
8.
Adjust:Inent
9.
Periodical cleaning
10.
Installation
11.
How
12.
How
13.
How
14.
Adjust:Inent
15.
Adjusting the thread
16.
Upper thread
17.
Lower thread
18.
Adjust:Inent
19.
Feed dog height"' .. ·
20.
Adjust:Inent
21.
Presser bar
22.
Adjust:Inent
1)
Adjust:Inent
2)
To
foot
of
to
wind the lower thread .. · .. · · .. · .. ·
to
attach a needle
to
route the upper thread
change the balance
...............................................................................................................
oil pmnp .. · ·
...
ofbelt
cover · .. ·
of
stitch length and reverse sewing···· .. · ..
......
.. · ..
..........
· .. · .. · .. · ·
...............
....
· · .. · .. ·
· ·
....
· .. · · ..
·"
· ..
·"
.... · ......
· .. ·
....
· .. · .. · .. · .. · .. · .. · .. · ·
.... · ...... · ....
........................................................................
....
· · .. · .. ·
·" ·"
.. · ·
....
.. · ·
....
........ · .... · "·
· .. · · ..
·" · ....
....
· · .. · .. ·
· .. · · .. · ..
·""
·························
.. · .. · .. · ·
· ·
... · .. · .... · ·" ·" ·" ·"
.... · ·"
· ..
· .. ·
·"
.. ·
"·
"·
....
.. ·
"·
·" ·"
· .. ·
· .. · .. · .. · .. ·
· .. ·
.... · ..
..
· · .. ·
........ · ......
.. · .. · .. · · .. · ..
....
· .. · · .. · .. · .. ·
·············
tension....................................................................................
tension.............................................................................................
tension.............................................................................................
of
presser pressure·
........
of
feed
dog
inclination"'"'
lifter
.. ·
....
· .. ·
of
walking foot and presser foot
of
alternating n10vement· .. · · ·
....
· ..
····
.. · .. · ..
··
..
···
..
·······
..
··
.. · ..
·"
............
··············
· .. ·
..... · .......................
o •
..
· .. · ..
• •
.. • .. • ..
·"
o
.. • ....
........................................................................
..
··
........
· .. · ..
·"
.. · ·
....
· · .. · .. · .. ·
....
· .. · · .. · .. · .. ·
....
· · .. · .. · .. ·
..................................................................
"·
· · · · · · .. · · · · · · · · · · .. · · .. · .. · .. · .. · .. · · · ·
of
the alternating movements between the walking foot and presser
....
· .. · .. · .. · · · · · .. ·
·......
·"
.. ·
....
· .. · · .. · .. ·.. 4
....
..
··
....
• • • • • •
..
• •
....
• •
.....
·.. ...
........
· ..
3
" 4
·"
4
· .. · 5
· 5
6
6
• 6
7
·..
7
7
....
· 7
8
3
6
7
3) Installing the
4) Feed pitch adjust:Inent
Adjust:Inent
23.
24.
Adjust:Inent
feed
regulator bracke ...
of
walking foot
of
feed
timing······
of
thread trimmer mechanism·
.................................................................................
...
...
... ...
...
......
... ...
... ... ...
... ... ... ...
.....................................................................
....
· .. · ..
··
.. · .. ·
........
· .. ·
.... · ...... · ........
...
... ... ...
· .. ·
... ... ... 8
....
··
.. · .. ·
"1
8
9
0
1)
The
thread
t:rinnner
2)
Installing the thread trimmer solenoid unit · · · · · · · · · • · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
3)
Adjustment ofknife engagement
25.
Needle, Thread and Material
:mechanism
to
illustrated as· ..
·············································
be Sewn · · · · .. •
·····················
....
· .. ·
......
· .. · .. · .. · .. · .. •
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 1 0
······························
........
· .. · .. · .. · .. · .... · ·..
10
10
11
1.
PRECAUTIONS
1)
Safety precautions:
BEFORES
STARING
OPERATION
(1) When turning the power on, keep your hands and fingers away from the
and
the
area around the pulley.
Power nmst
(2)
(3)
Power must
the machine, or when replacing.
(4) Avoid placing fingers, hairs, bars etc., near the pulley,
the machine is in operation.
(5) Do not insert fingers into the thread take-up cover, under/around the needle, or pulley when the machine
is
in operation.
If
a belt cover, finger guard, eye guard are installed, do not operate the machine without these safety
(6)
devices.
2)
Precautions before starting operation:
(1)
If
the machine's oil
(2)
If
the machine is lubricated
(3) When a new sewing machine is first turned on, verify the rotational direction
on.
power
(The pulley should rotate counterclockwise when viewed from the pulley)
Verity the voltage and (single or three) phase with those given on the machine nameplate.
(4)
be
be
turned
turned
pan
off
when the machine is not in use, or when the operator leaves the seat.
off
when tilting the machine head, installing or removing the
"V"
belt, bobbin winder pulley, or motor when
has an oil sump, never operate the machine before filling
by
a drop oiler, never operate the machine before lubricating.
area
around/under the needle
"V"
belt, adjusting
it.
of
the pulley with the
3) Precautions for operating conditions:
1)
Avoid using the machine at abnormally high temperatures
lower) .
2)
Avoid using the machine in dusty conditions.
2.
Specifications:
ns
Material Weight
Bar
Speed
Stroke
Max. Sewing
Stitch Length
Needle
Thread Take-up Lever Stroke
Alternating Movement
Walking Foot Alternate Operating System
Feed Dog Height
Needle
Presser Foot Stroke
Lubrication System
Thread Trinnner
Touch Back
By Hand
By Knee
(35'C
GC0398-1
X
or higher) or low temperatures ( 5'C or
GC0398-1-D
Heavy
2,000rpm
Q-10nnn
35.0nnn
72.0nnn
2.0-5.0
DPX17
nnn
Dial
1.0
nnn
14#-24#
6.0nnn
16.0
nnn
Automatic
I
0
0
-1-
3.
Installing the belt (Fig. I):
1)
Use a V-belt for sewing machine use, type M.
2)
To
adjust the
by
height
sinks
center
consistent
may not stop in the proper position.
high, the motor bearings will deteriorate more rapidly.
4.
marks deviate more than
pulley.
turning the tension adjust nuts so that the belt
about 15mm when depressed
of
the belt span.
If
the tension is too low,
in
the low or medium range,
Adjustment of needle
1)
Adjustment of
When· the pedal is kicked down
(
1)
Disconnect the plug (12 pins) from the control panel;
( 2 )
Run
(3)
While holding the pulley, insert the adjusting tool into the
belt
tension, change the motor
by
the
speed
If
the tension is too
bar
stop position (Fig2, Fig3, Fig4):
"UP"
3mm,
the machine and stop in the
position
by
adjust as follows:
hand at the
may
not
or
the
needle
heel to cut the thread, the machine stops in the "UP" position.
"UP"
position;
be
two
holes marked "A", then rotate the
If
the
2)
Adjustment of "DOWN" position
When the pedal is returned to the neutral position, the machine stops in the
3mm,
marks deviate more than
adjust as follows:
( 1) Disconnect the plug (12 pins) from the control panel;
(
2)
Run
the machine and stop in the
(3)
While holding the pulley, insert the adjusting tool into the two holes marked
pulley.
3) Confirm the stop operation then the plug
"DOWN"
position;
(12
pins) coming from the machine head
into the receptacle.
I~
Fig.3
"DOWN"
"B",
position.
then rotate the
If
Mark
the
(WHITE)
"Up"
position
"Down"
posit1on
Fig.2
1st mark
3rd mark
White
Black
-2-
M~rk
IRI
Ar.KI
BEFORE
Fig.4
5.
Lubrication (Fig.5):
Pour
oil
up
to position
During operation, check the oil level periodically, and
replenish the oil supply up to position "A".
Use white spindle oil.
"A"
of the oil tank.
in
cases where the oil level is below position
"B",
Knee
lift
pin
®@
6.
Condition of oil lubrication (Fig.6):
While operating the machine, check the condition
7.
Adjustment of the hook lubrication (Fig. 7):
Adjustment can be done
(1) When the screw has been fully tightened ... Maximum
(2) \Vhen the screw has been fully loosened ... Maximum
Note: After adjustment
the machine should be operated for at
30
least
from the hook.
seconds, then check the oil mist
Fig.5
by
turning screw "A".
of
this screw,
Oil removing
screw
of
Oil check
oil lubrication through the oil check window.
window
Fig.6
8.
Adjustment
The standard adjustment is as follows:
The adjusting plate keeps the bypass hole fully
closed.
appropriately.
9.
To
decrease splashing, open the bypass hole
Periodical cleaning (Fig.9, Fig.lO,
Clean the feed dog, hook and oil pump periodically.
Maintenance
of
oil
pump(~
of
motor: Remove dust from the motor filter every one or two months.
8):
Fig.ll):
Fig.7
Adjusting plata
-3-
By-pass
Decrease
hole
Increase
Fig.8
Control box: Remove dust from the connector.
Feed
dog
Fig.9
10.
Installation
Be sure to install the belt cover for safety.
11.
How
Strength
Uneven winding:
bobbin.
wound insufficiently, tighten the adjusting screw.
to
of
winding: Particularly in the case
Winding amount: When the bobbin is wound excessively, loosen the adjusting screw. When the bobbin is
of
belt cover:
wind the lower
If
the bobbin is wound unevenly, slide the thread guide toward the less wound portion
thread
Winding tension
adjusting screw
(Fig.12):
of
Fig.lO
nylon or polyester thread, wind the bobbin loosely.
Fig.ll
0
of
Winding amount
adjusting screw
Fig.l2
12.
How
Note: Before
Note:
the needle with the long groove shifted to the front side. Normally, avoid fitting the needle with the groove
facing backward.
to
attach a needle (Fig.13):
If
thread
attach
the needle, be sure to
snapping occurs during reverse sewing with polyester, it may be avoided by fitting
turn
the power switch off.
-4-
Even
winding with
an
amount
fully capacity
4/5
of
Insert
the
tighten
groove in
Long groove
facing to
left
13.
How
Raise the thread take-up lever to its highest possible position, and route the upper thread in the order
illustrated below.
needle
the
the
to
until
it
screw
needle
the
bottoms,
keeping
facing
the
to
and
long
the
left~
0
route the upper thread (Fig.14):
Insufficient
Fig.l3
(i)
insertion
Wrong
direction
X
Left
to
right
)
14.
Adjustment
1)
To
change the stitch length, rotate the stitch length adjusting dial while pressing the "push" lever.
2)
Pressing the stitch length adjusting lever for reverse stitching.
of
stitch length and reverse sewing (Fig.15):
Thread
Thread take-up spring
Upper thread guide
Fig.l4
Fig.l5
--5-
Push button
15.
Adjusting the
thread
tension (Fig. 16):
0
:;
/?o:?Jit;;
~
16.
Upper
1) The upper thread can
2) Adjustment can be done
For special fabric sewing with special thread, the desired tension can
and operating range
Well
stitch
thread
-d3
balanced
tension (Fig.17):
be
adjusted based on the lower thread tension.
by
rotating the thread tension nut.
of
thread take-up spring .
~~
~·~.'
X
The upper thread
lovverthreadistoo
Thread
tension
ts
loosP.
Fig.l6
nut
•
•
Loose
too ttght
or
?2~
be
obtained
by
X
The
upper thread
or
lovver
threarl
adjusting the strength
is
is
too tiaht
too
loose
~~
Fig.l7
17.
Lower
Lower thread tension can be adjusted
18.
Adjustment
1)
Pressure should be adjusted according to the material to be sewn.
2)
Pressure on both the walking foot and the presser foot can be adjusted.
3) Sewing pressure should be adjusted to the minimum required strength.
thread
of
tension (Fig.18):
by
rotating screw "A".
presser pressure (Fig.19):
2Qmm
Fig.l8
Fig.l9
-6-
19.
Feed dog height (Fig.20):
1)
Feed dog should
2)
To
adjust
the
( 1 ) Loosen the screw
2)
When adjustment is completed, tighten the screw
(
be
l.Omm
dog height as follows:
higher
"A",
than
the
throat
move the feed bar upward and downward.
plate.
"A"
.
Feed
.
:~a.+
Feed
dog
Feed
bar ass'y
Fig.20
20.
Adjustment
If necessary, adjust the inclination according
of
feed dog inclination (Fig.21):
Position
of
eccentric shaft
~-
mark
Horizontal
on
ID'
8),
lifting prong
the
Up
Down
®
to
the material
Feed dog
MN\N.lo..
~
~
to
be sewn
Standard
Front up
(MAX.)
Front
(MAX.)
Eccentric
as
down
shaft
Fig.21
follows:
1)
Loosen the screw "A".
2)
Rotate the eccentric shaft clockwise or counterclockwise with screw driver.
3) Tighten the screw
21.
Presser
Rotate the presser bar lifter in the direction
arrow.
This raises the presser foot.
22.
Adjustment
1)
Adjustment
dial located on the top cover.
number printed on the dial represents the possible protrusion
throat plate when the alternating movements on these are evenly set.
bar
(1) The alternating movement on the walking foot and presser foot can be
(2) Face the desired number printed on the dial to the matching mark located on the top cover. The
"A".
lifter (Fig.22):
of
the
of
walking foot and presser foot:
of
alternating
movement (Fig23):
Fig.22
adju;ted
of
the walking foot and presser foot from the
by
using adjusting
-7-
(3) The alternating movements can be readjusted
2)
To
change the balance
presser foot (Fig.24):
up
to 2.0-5.0mm.
of
the alternating movements between the walking foot and
Alternating
movement
adjusting
dial
of
the presser
.is
slightly raised from the throat plate.
of
the presser foot has been decreased by a set distance. And
by
the same distance.
of
the walking foot and increase the rise
is
slightly raised from the throat plate. Next, loosen screw
of
the walking foot.
(1)
To
increase the rise
CD
Matching
Presser foot
Remove the rubber plug
mark
Fig.23
of
the walking foot and decrease the rise
of
top cover.
® Rotate the pulley until the presser foot
@ Loosen screw
@ The built-in spring pulls down the presser foot until it makes contact with the throat plate. Tighten
the screw
the vertical motion
2)
(
follows:
"A". Finally, tighten screw
"A".
@ After this adjustment, the protrusion
As
a contrary case ( 1) , to decrease the rise
Fist, rotate the pulley until the walking foot
"A"
(on the right side)
of
the walking foot has been increased
"A".
This decreases the rise
Rubber plug
3) Installing the feed regulator bracke (Fig.25):
No tte:
too short or long, causing defective machine operation.
machine arm to 27.5mm
This adjustment should insure a clearance
regulator bracket and the top cover mounting face located on the arm. Tighten screw
4) Feed pitch adjustment
The ratio
been adjusted to
operating conditions.
Ifthe
feed regulator bracket
(1) Set the clearance between special screw
as
Fig.25.
(2) With the feed regulator stud held
of
of
the upper feed amount (of the walking foot)
I:
1.
However, the walking foot feeding amount can be increased or decreased depending on the
is
poorly positioned, the resultant alternating movements may be
as
explained is step (1) above, adjust the feed regulator bracket.
of
12mm between the periphery
walking foot (Fig.26):
"A"
located on the regulator stud and the side wall
of
to
the lower feed amount (of the feed dog) has
Upper feed lifting rock
shaft crank
Fig.24
foot:
of
pin
"B"
located on the feed
"C".
presser foot
of
as
the
-8-
Loosen the nut located on the upper feed rock shaft crank (left), and shift to adjust the position
bracket upward or downward.
Upper
position-Feed
Lower
position-Feed
pitch-Small
pitch-Large
Feed
regulator bracket
__....-
Nut
of
the pivot
Upper feed rock shaft
crank (Left)
Fig.26
Fig.25
23.
Adjustment
1)
The standard position
Open the top cover, properly slide the eccentric ring
2)
of
feed timing (Fig.27):
of
the eccentric feed cam and eccentric feed lifting cam are illustrated
to
adjust the position.
to
Fig.27
3) The eccentric feed cam can also be adjusted by removing the rubber plug located on the top cover. In the
latter case, however, the built-in bevel gear is concealed; care should be taken when adjusting.
1st
screw
Upper
lifting
Upper
shaft
eccentric feed
cam
Top cover
Bevel gear for
upper shaft
Rubber plug
1st
screw
Eccentric
feed cam
Fig.27
-9-
24. Adjustment
1)
The thread trimmer mechanism illustrated
Fixed blade
of
thread trimmer mechanism:
Twist spring
as
Fig.28
Movable knife (left) Knife driving Knife driving
crank shaft
Cam follower
(1)
crank
Cam
follower Drive lever Stopper plate
crank
(2)
Fig.28
2) Installing the thread trimmer solenoid unit Fig29:
(
1)
Operation stroke
a.
Standard operation stroke
b.
This stroke can be adjusted by using
"A".
nut
(
2)
Installing the unit:
a.
The unit can be mounted by using
"B"
screws
b.
Clearance
and "C".
of
insured between the driving lever
and cam follower crank 2 with
stopper nut
"A"
solenoid.
c.
In
such a situation, activating the
solenoid should create a clearance
of
0.5mm between cam follower
crank 1 and
standard.
To
slide the solenoid mounting bracket
in the direction
illustrated,
if
of
the thread trimmer solenoid:
is
6.0mm.
l.Omm must
made contact with
2.
This situation
meet this standard,
of
the arrow
adjustment
is
needed.
be
is
as
6
O.Smm
mm
® ®
Solenoid
mounting
bracket
Fig.29
3) Adjustment
(1) Position
of
knife engagement (Fig.30):
of
movable knife (left) and fixed blade:
See the Fig.30, the standard distances from the needle center are 7.5mm and 5mm from the
movable knife (left) and fixed
bla'de respectively.
-
10-
Loading...