HIGHLEAD GC20818-MD Instruction Manual
HI
Customer
Service
Copy
®
Basting Machine
Instruction al
a t Cata
SHANGHAI HUIGONG
N0.3
SEWING MACHINE FACTORY
From the library of: Superior Sewing Machine & Supply LLC
From the library of: Superior Sewing Machine & Supply LLC
•
CAUTIONS
ON
USE
1,
Cautions on operation
I)
When the power
is
turned on and off, keep your foot away from the
pedal
Note that the needle goes up
to
the UP position when the power switch is turned
on.
2)
Note that braking does not work
if
the power is turned off, or power failure takes place, during machine
operation.
3)
Since dust or other foreign matter entering into the control box may cause malfunction or trouble, be
sure
to
keep control box cover closed during operation.
4)
Do
not use a multimeter to check the control circuit. Otherwise, semiconductors in the control circuit
might be damaged by voltage from the multimeter.
2.
Precautions before
starting
operation:
I ) Never operate the machine before filling the machine's oil pan.
2)
When a new sewing machine is first turned on, verify the rotational direction
of
the pulley with the
power 0
11
.
~)
V'!ri
fy
the voltage and phase (single
or
three) with those given on the machine nameplate.
3.
P
fu
autions for operating conditions:
1)
A\Olcl
us'ng the machine
at
abnormally high temperatures (
35
'C or higher) or low temperatures (5
·c
or lower) .
2)
Avoid
using the machine in dusty conditions.
4.
Connection
of
contro box
The control box should be connected
as
shown
to
the right.
Note:
(I)
Be sure
to
turn the power switch
off
for safety before connecting or disconnecting the connectors.
(2) The combination
of
the machine heads with the motor control panels are specified below. Use special
care
for
the correct combination when replacing the machine head or motor control panel.
INMe
mark
UP
pos1110n
Black mark
DOWN
posit
io
n
S.Adjustment
of
needle
bar
stop position
I)
Adjust
of"UP"
position: When the pedal
is
kicked down by heel, the machine stops
at
"UP" position.
-1-
From the library of: Superior Sewing Machine & Supply LLC
If
the marks deviate larger than 3 nnn, adjust
as
follows.
(
l)
Disconnect the plug (12 pins)
of
cable from the
machine head.
(
2)
Run the machine and stop
at
"UP"
position.
(3)
While holding the pulley, insert the "adjusting ®
tool"
in
the hole "A", then remove the tool.
2)
Adjust
of
"Down" position: When the pedal is
"Neutral" the machine stops at "Down" position.
If
the marks
deviate large than 5 nnn, adjust as follows.
(I
) Disconnect the plug (
12
pins)
of
cable from the machi
ne
head.
(
2)
Run the machine and stop
at
"Down" position.
(
3)
While holding the pulley, insert the "adjusting tool" in the hole "B", then remove the tool.
3
3)
Confirm the stop operation, then set the plug (12 pings) coming from the machine head into the
receptacle.
•
CAUTIONS
ON USE:
1, Lubrication(!)(Fig.4)
Pour oil
up
to
position
"H"
of
the oil tank.
During operation, check the oil level periodically, and in
cases where the oil level
is
below position "L", replenish the oil
supply
up
to
position
"H"
.
Use
white spindle oil.
2.
Lubrication (2)(Fig.5)
When a new sewing machine
is
used for the first time, or sewing machine left out
of
use·for a long time
is
used again, replenish a suitable amount
of
oil
to
the portions indicated
by
arrow in the fig.
Note: Lubricate the Hook Base everyday.
0 1-2
drops
e
~
- 4
drops
3,
Adjustment
of
oiling to rotating
hook( Fig.6 )
-2-
From the library of: Superior Sewing Machine & Supply LLC
OPERATION
1, Attaching the needle(Fig.7)
1 ) For needle, use'
"Mt
X 190"
2 ) Determine the needle gauge for thickness Ifthread used.
3 ) Loosen the needle clamp screw.
4 ) Hold the needle with the prime groove turned
to
the front and
put it into the needle socket until it stops.
5 ) Tighten the needle clamp screw.
2,
Winding the
bobbin
thread(Fig.8)
3,
Threading the machine(Fig.9)
The needle should
be
threaded in the order numbered in the right figure.
4,
Setting ofbobbin(Fig.lO)
1 ) Put the bobbin into the bobbin case in the direction that the bobbin
in the bobbin case rotates clockwise, viewed from the front, when the thread
is
pulled.
2 )
Pass
the thread through slit
CD
of
bobbin case and pull. The
thread will be led out from aperture
®.
*The bobbin should rotate in the direction shown by arrow in the
tigure when the thread
is
pulled.
5,
Leading
out
the
bobbin
thread(Fig.
11)
I ) Put the bobbin and bobbin case together into the hook, as shown in
the right figure.
2)
Pick
up
the end
of
needle thread
by
left hand and lightly press down
the pedal by toe
to
run the machine one turn. When the needle thread is
pulled
up,
the bobbin thread will
be
drawn out
as
shown in the right figure.
-3-
7
9
<D
From the library of: Superior Sewing Machine & Supply LLC
6..
Thread
tension (Fig.12)
7" Bobbin
thread
tension
adjustment(
.Fig.13)
0 Balance tension Tight needle or
loose bobbin
tension
8
..
Needle thread tension
adjustl!'~dt
Loosen needle
or
tight bobbin
tension Loosen
'J)Tighten
Bobbin tension
adjusting screw
13
The needle thread tension can
be
adjusted
by
changing presstrre
of
the tension disk, and force and stroke
of
the thread take-up spring.
1) Tension disk presstrre adjustment (Fig.
l4)
(1) In most cases, thread tension can by properly adjusted only by changing tightness
of
the tension
regulator thmnb nut.
(2)
To
increase presstrre, ttrrn the nut clockwise.
(3)
To
decrease pressure, ttrrn the nut counter-clockwise.
2)
Thread take-up spring force/stroke adjustment
(Fig
.15)
Apply a scre\vdriver to the thread take-up spring stud and ttrrn the stud. Spring
fo
rce increases when the
screwdriver
is
ttrrned counter-clockwise, and decreases when ttrrned clockwise.
If
the stud is tight, remove the
face plate and loosen the screw
of
tension regulator slightly.
3) Thread take-up spring force/stroke adjustment ( Fig.
15
)
Loosen the stop screw, adjusting the stopper block, After the adjustmen
t,
be sure
to
tighten the set screw.
The standard stroke
of
thread take-up spring
is
from 6mrn
to
8nm1
9,
Adjustment
of
thread
tension regulator (Fig.
16)
-4-
From the library of: Superior Sewing Machine & Supply LLC
1) Adjustment
of
thread tension regulator setting position. The
standard gap
is
about 0.5mm when the tension release cam salience is in
contact with the tension release pin.
To
adjust, loosen screw A and change
position
of
the thread tensionregulator properly.
2 ) Tension release timing adjustment The tension release
cam
should
be
set so that the tension release disks come to close at the time the
needle plunges into the throat plate.
10,
Presser foot pressure
adjustment
(picture
17)
Loosen the pressure adjusting screw lock nut and turn the pressure
adjusting screw
®.
Turn the screw clockwise
to
increase the pressure.
Turn the screw counter-clockwise
to
decrease the pressure.
Note: Do not change setting
of
screw
@.
If
the
screw is too tight,
clapping noise may
occur
during
operation.
11
, Adjustment
of
presser foot height
(picture
17)
l ) Height
of
presser foot
'i'.>'!
~
tandard
height
of
the presser foot at its lowest position is 1.0
mm 1
r.
eas
m
xi
between the presser foot bottom surface and the throat plate
top
surface (sec the detail
of
part "A").
To
adjust the height
of
the presser foot, loosen the set screw ® used
to
secure the presser
bar
guide bracket and vertically move the presser bar.
2 ) Stroke
of
presser foot
loosen screw
CD
and adjust position
of
presser
bar
lifting bracket so
that the presser foot starts going up when the needle point reaches
0.5mm-l.Ommabove the presser foot bottom surface.(When this
adjustment
is
made, the height
of
the presser foot at stop
of
the machine is
about 26.5nnn over the throat plate.)
12,
Timing
of
hook
and
needle(Fig.18)
1 ) When the needle
is
at 2.2mm above its lowest position, the
hook and the needle should
be
located as described below.
•
The
upper
edge
of
needle eye is 1.3mm below
the
hook
tip.
•
The
clearance
between
the
hook
tip
and
the
needle side
surface is 0.05mm.
2)
The relative positions
of
the hook and the needle can
be
adjusted
as
described below.
-5-
screw®
Loosen
.;-:.
Tighten
1010.---<ID
Throat
plate
0.0511111
Center
of
needle
18
From the library of: Superior Sewing Machine & Supply LLC
*The adjustment
is
easier when the presser foot and the throat plate are previously removed.
• Ad.iustment of hook tip position (Fig.19)
a,
Lean outward the machine head. Loosen three hook shaft gear
screws.
b,
Rotate the balance wheel by hand
to
position the needle to
2.
2mm
above the needle DOWN position.
c,
Rotate the hook by hand to align the hook tip with the center
of
the needle.
d,
Adjust the lateral position
of
the hook saddle so that the
clearance between the hook tip and the needle side surface is 0.05mm.
To
adjust, loosen screws
CD,
® and
®.
19
Note:
Use
care not to loosen set screw ® excessively, and not to disengage the hook shaft gear (small)
from the gear (large).
e,
Tighten the loosened screws
in
the following order:
3) Lightly press the gear (large) against the side wall
of
hook saddle and tighten set screw ® first.
4) Check the clearance between the needle and the hook and then tighten screw
CD
.
5)
Finally tighten screw
®.
13, Timing between hook motion
and
take-up lever motion(Fig.20)
When the toothed belt
is
removed for replacement, the timing
between the hook motion and the take-up lever motion should be
adjusted
as
follow:
1 ) Turn the balance wheel
by
land to locate the take-up lever to its
highest position.
2 ) Lean outward the machine head
to
make sure the arrow mark
(timing mark) on the toothed belt pulley meets the black line put on the
bearing bracket.
Toothed
/ - ..GASr-11tT belt
Arrow
mark
3 )
If
the arrow mark
~s
not in line with the black line, remove the toothed belt and install again so that the
two marks are
in
line, as shown in the right figure.
14, Timing between hook motion
and
opener motion(Fig.21)
l ) Rotate the balance wheel by hand to locate the opener holder to
the
farthest position away from the throat plate.
2 ) Make sure the clearance between the portion
CD
of
bobbin case
and the opener is about 0.2mm as shown in the right figure.
3 )Ifthe clearance is too large or small, loosen opener screw ® and
adjust position
of
the opener.
-6-
From the library of: Superior Sewing Machine & Supply LLC
• ADJUSTMENT
OF
THREAD TRIMMER
1, Installation
of
movable knife (Fig.22)
l)
Initial position
of
movable knife
a,
Rotate the balance wheel
to
lower the
needle
to
the DOWN position
b , While keeping the DOWN position,
press the cam follower crank to enter the roller
into the trimmer camgroove.
c , Rotate the balance wheel until the black
mark point on the arm meets the white mark
Rocker
crank-
point on the balance wheel. In so doing, care should
be
taken not to allow the
cam
roller to leave the cam groove
(use) a screwdriver,
or
any other suitable tool).
d , Loosen bolt
CD
of
the rocker arm
e , Adjust the movable knife so that its tip protrudes by 3-3.5mm from the fixed knife blade edge, as shown
btl
ow
.
Alter the adjustment, tighten bolt
CD.
2) Ck anmcc between the movable trinnuer knife and the hook (Fig.23)
a , Rotate the balance wheel to lower the needle
to
the DOWN position
b , While keeping the DOWN position, press the cam follower and
tum
the
balance wheel by hand in the farthest position.
c , Rotate the hook by hand in the directions shown
by
arrows in the right
and adjust the clearance between the movable knife and the hook to about
0.2nnn(loosen screws
CD
and ®
to
adjust).
2,
Adjustment
of
trimmer cam (Fig.24)
I) Rotate the balance wheel
to
lower the needle
to
the DOWN position
2) While keeping the DOWN position,
press the cam follower crank to enter the roller
into the trinnner cam groove.
3) Adjust the trimmer
cam
so that the
movable knife starts moving when the balance
wheel
is
turned
by
hand and the green mark
point on the balance wheel meets the black point
on the
ann
To
adjust loosen two trimmer cam screws
A.
Cam groove
-7-
0.2mm
From the library of: Superior Sewing Machine & Supply LLC
3,
Adjustment
of
scissoring pressure
of
thread
trimmer
(Fig.25)
( 1) Loosen bolt A used to secure the fixed knife base.
(
2)
Turn fixed knife vertical position adjusting screw 8 to adjust the scissoring pressure. After the
adjustment, tighten bolt
A.
Note:
The
pressure
should
be
adjusted
as
minimum
as
possible. Excessive
pressure
causes
over-torque to
the
trimmer
mechanism,
and
trimming
failure.
(3) Move the movable trirruner knife to make sure threads are cut successfully.
Fixed knife
base
A
B
4,
Sharpening the fixed knife(Fig.26)
Ifthe fixed knife becomes dull, sharpen it as shown
in
the figure below.
Since it
is
impossible to sharpen the movable "knife, replacement with a new one is required when the
movable knife becomes dull.
-8-
From the library of: Superior Sewing Machine & Supply LLC
A.ARM
BED
AND
ITS
ACCESSORIES
16
33323~
-9-
From the library of: Superior Sewing Machine & Supply LLC
A.ARM BED AND ITS ACCESSORIES
Fig.
Part
No.
Description
Pes.
Remarks
No.
AOl H3000D2160 Screw 2
A02 H2400B2060 Spacer 1
A03 H3200B2060 Oil guide plate 1
A04 1-1320082070 Thread guide I
A05
H2400B20MO
Screw 3
A06 HA300B2170 Screw
11
A07 Il3200B2030
Ann
side cover (left) 1
A08 H3200B2050 'fbrend take-up cover 1
A09 H2400J2010 Oil cap 1 (<ll13)
AlO H3200B2040
Ann
>'
ide cover (right) 1
All
H2000B2010 Rubber plug 1 (<ll13)
Al2
HA700B2060 Screw 2
Al3
H2400B2100 Thread guide 1
Al4
HA100E2150 Screw 2 SM11164(40)xlO
Al5
HH415B7101 Bobbin winder complete 1
Al6
H6658B8001 Rubber ring 1
<ll35
Al7
HA100E2150 Screw 1
SMll/64
(40J
xl()
Al8
HAJOOB2070 Washer 1
<ll4.5x<IJ8x
1
Al9
HI-142787101 Thread guide complete 1
A20 H2000M0090 Cap 2
A21
H4913B8001 Needle
bar
supporter 1
A22 14491288001 Screw 2
A23
H3200B20MO
Thread guide 2
A26 H4813B!l001 Slide plate (Jell) l 3/32-5/
!l
A27 H5015B8001 Cover 1
A28 H4914B8001 Screw 2
A29 HH411B8001 Needle plate 1
A30 HI-141288001 Needle holder I
A31
HH413B8001
Scr<Jw
1
A3
2
HA300B:?.
l90 Sere 2 SM11/64(40)x6.5
A33 H4747B8
001
Slide plate (right) 1 3/32-1/4
A34 HA106B0673 Rubber plug 2 (<ll19)
A35 HA300B2160 Screw 2
A36
l-13
20082020 Face plate 1
I 37 H675GB8001 Thread cutter 1
t\38 H6762B8001 Screw 2 SM91
Ci4(40)X4
.5
-10-
From the library of: Superior Sewing Machine & Supply LLC
B.
THREAD
TENSION
MECHANISM
1 2 3 4 5 6 7
19 18
20
21
22
23
L
24
17
16
15
14
13
12
11
10
-11-
From the library of: Superior Sewing Machine & Supply LLC
B.THREAD TENSION MECHANISM
Fig. Part No. Description Pes. Remarks
No.
801 l-1322180687 Thread guide I
802
HAI0680676 Screw I SM9/64(40) x6
803
.1-1322186820 Mounting plate I
804
HA300C2030 Screw 2
SMIII6
4(40)x8
805
H3221B6810 Nut 2
SMII/64(40)x3
806
H322180683 Thread tension stud I
SMII/64(40)x14
807
HAII2B0693
TIU'ead
tension disc 2
80!!
1-13221806!!4
Spring I
809
HA71080671 Thumb nut I
810
H2504C0658 Thumb nut I
811 l-1324818221 Thread Take-up spring I
812
H324818D21 Plate complete I
813
H4804C8001 Screw I SM9/64(40)x22
814
H2504C0652
TIU'cud
tension stud I
1315
1-1200410067
Screw I SM9/64(40)x7
816
H320082100 Screw I SM9/64(40)x6.5
817
H322186819 Stopper I
818
HH406C8001
TIU'ead
tension stud I
819
HH407C8001 Thread releasing pin I
820
HA31080705 Thread tension
elise
2
821 HA31080702 Tension releasing plate I
822
HA60780068 Spring I
8:!3 HA31080701 Thumb nut I
8:!4 HA3411D30!! Screw I
-
!2-
From the library of: Superior Sewing Machine & Supply LLC
C.THREAD
TAKE-UP
LEVER
MECHANISM
&
ARM
SHAFT
MECHANISM
1 2 5 7 8 6 9
10
11
12
13
14 15 16 17 18
-13-
25
26
From the library of: Superior Sewing Machine & Supply LLC
C.THREAD TAKE-UP MECHANISM & ARM SHAFT MECHANISM
Fig.
Part
No.
Description
Pes.
Remarks
No.
COl
H240SD1122 Oil wick I 2.Sx240
C02 H32422CI08 Thread Take-up guide bracket pin I
C03 HAI10D0672 Screw 3 SMIS/64{28)x12
C04
H240SDIIII
Thread Take-up lever I
cos
H240SDI112 Thread Take-up slide block I
C06 H24211D30S Plug I
C07 H240SD0662 Thread take-up crank pin I
COB
H240SD0662 Oil wick I
C09 H32111D704 Needle bar connecting link 1
CIO HA307C0662 Screw I SMI/4{40)x6
Cll
HAIOSD0662 Screw 1 SMI/4(40)x4
Cl2
HAIOOC2070 Screw I SM9/32(28)xiO
Cl4
HAIOOC2060 Screw I SM9/32(28)x
13
CIS H240SD0664 Screw I
SMIS/64(28)xl4
Cl6
H32111BI04 Felt 1
Cl7
H3204BOOII Arm shaft bushing left (complete) I
Cl8
HA30SE0662 Screw 2
Cl9
HH404D8001 Thread releasing
cam
I
C20 H3204C06SI Arm shaft I
C21
H320SC0661 Spring flange 3
C22 HAII3F0684 Screw I SMIS/64{28)x8.S
C23 H3207C0671 Pulley I
C24 HAIOOF2130 Screw I SMIS/64(28)X6.7
C2S
H3200C2030 Cog belt 1
C26 H320SC1021 Pulley I
C27 HA104F06S4 Screw 2
C28 H4931L8001 Machine pulley 1
C29 HAIIOD0672 Screw 2
C30 H4930L8001 Speed command disk
Fl1
(down) I
C31
HA700R0030 Spacer A 2
C32 H4928L8001 Speed command disk F20 (up) I
C33 HA700R0040
SpacerB
1
C34
HA700ROOSO
Spacer 1
C3S
HA700R0060 Stopper I
C36 H007009300 Retaining ring C-type I
C37 H320SJ0662 Ball bearing I
C38 HA300C2030 Screw I
C39 HA703R0067 Washer 1
C40 HA703R006S Detector bracket 1
-14-
From the library of: Superior Sewing Machine & Supply LLC
D.NEEDLE
BAR
&
PRESSER
FOOT
MECHANISM
28::-i
::~
25~
22
16
29
~30
6
-15-
7
8
9
From the library of: Superior Sewing Machine & Supply LLC
D.NEEDLE
BAR
& PRESSER FOOT MECHANlSM
Fig.
Part
No.
Description
Pes.
Remarks
No.
DOl
H2405D0664 Screw 3 SM15/64(28)x
14
D02 HD41708001 Bushing I
D03
HH405E8001 Washer 4
D04 HH406E8001 Rubber ring 2
D05 H32111D504 Needle bar connecting I
D06 H32111D604 Screw I SM9/64(40)x8.5
D07 HD415D8001 Crank guide I
D08 HAIOOC2190 Screw 2 SMI1164(40)x8
D09 HD41608001 Bell crank guide I
DID HH417E8001 Needle bar I
011 HD41308001 Bushing I
Dl2
H620408001 Needle clamp I
Dl3
HA500C2030 Needle bar thread guide I
Dl4
HAIOOC2170 Screw I SMI/8(44)x4.5
Dl5
HD404D0651 Needle I
MTxl90
16#
Dl6
HH407E8001
Lining
presser I
Dl7
H3200E2020 Screw I I/8(44)X9
Dl8
HH408E8001 Bushing 1
Dl9
HH409E8001 Presser bar position guide bracket 1
D20 HA300C2030 Screw 2
SMII/64(40)x8
D21
HH411E8001 Bracket I
D22 HH412E8001 Lever spring I
D23
HH413E8001 Presser bar I
D24 HH414E8001 Spring I
D25
HAI17H0692 Nut I SMI/2X28
D26 H2400GOI40 Screw I SM112(28)x55
D27 H2400GOI60 Nut I
SMII/64(40)
028
H2400G0150 Screw I SM11164(40)x48
029
HA70400657 Rubber plug I
030
HE016L8001 Felt I
031 HH416E8001 Pin I
-
16-
From the library of: Superior Sewing Machine & Supply LLC
E.
HOOK
SADDLE
MECHANISM
9
10
--------n
---------18
27
26
-17-
From the library of: Superior Sewing Machine & Supply LLC
E.HOOK SADDLE MECHANISM
Fig. Part No. Description Pes. Remarks
No.
EOI
HH404F8001 Hook saddle (right) I
E02 H320410021 Hook shaft bushing (upper) complete 1
E03 H320710661 Screw 1 SM15/64(28)x30
E04 H320710066 Bushing 1
E05
H850417101 Hook complete I HSH-12-15M
(3)
EO' H6906H8001 Spring 1
E07 Hl!50518001 Bobbin 1 B0-112(A)M
EOS
H320410656 Oil wick 2 2.5x)5
E09 H321531504 Bobbin case opener holder pin I
E10 H321531204 Screw 1 SM3/16
(30)
x7.8
Ell
H321531304 Ling 1
E12 H32153l104 Bobbin case opener holder I
El3
H2004J0067 Screw I SM9/64
(40
) x7
E14 H3200l2030 Washer I
E15 H320012020 Opener 1
E16 H005008050 Spring washer 1
GBrf93
5
E17 HA104G0658 Nut 1
E18 H320410657 Screw 1 SM3/16(28)x14.5
E19 H321421204 Gear (small) 1
E20 HAI05D0662 Screw 3
SMJ/4
(40)
X4
E21
H320410653 Hook shatl bushing (lower) 1
E22 H2013J0065 Washer 1
E23 H320012050 Screw 1 SMI/4(24)x23
E24 H320410658 Screw 1 SM3/16x(28)X43
E25
H320410659 Nut 1 SM3/16{28)
E26 H005014050 Spring washer 1
GBrf955
5
E27 HA305E0662 Screw 2 SM15164 (
2X)
X4.5
E2l!
H321421104 Gear (large) I
E29 HA307C0662 Screw 1 SMJ/4(40)x6
E30 H320416510 Screw 1 SM114(40)x6.5
E31
H850618001 Bobbin case 1 CP-12C
-18-
From the library of: Superior Sewing Machine & Supply LLC
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