Highlead GC24518-1, GC24518-2 User Manual
®
Purchasing
Copy
Dept
HIGH
LEAD
GC24518-1/GC24518-2
Single-Needle.Double-Needle Post Bed Needle Feed
Lockstitch Sewing Machine
Instruction Manual
Parts
SHANGHAI HUIGONG
N0.3
Catalog
SEWING MACHINE FACTORY
---
CONTENTS
---
Instruction
1,
Precautions
2,
How
to
Attach
3,
How
to
Wind
4,
Lead
the
Upper
5,
Adjustment
6,
Adjust
7,
Adjust
8,
How
9,
How
10,
How
L
Ad
1
12, Adjustment
13,
Adjusting
14,
Lubrication
to
to
jus
the
the
place
lead
to
tmen t
adjust
Manual
before
the
of
thread
pressure
the
the
of
of
thread
staring
Needle
Lower
Thread
stitch
the
upper
the
........................................................................
length
guide
of
bobbin
lower
lower
thread
thread
take-up
operation
................................................................
Thread
...............................................................
presser
thread
......................................................
and
.............................................................
foot
into
the
........................................................
thread
........................................................
tension
spring
................................................
reverse
hook
.....................................................
....................................................
sewing
.................................................
...............................................
...................................................
..........
oc•
••••••••••••••••••••••••••
,.
1
2
2
2
2
3
3
3
3
4
4
4
4
5
15,
Installation
Parts Catalog
A,
ARM
BED
AND
B,
THREAD
C,
UPPER
D,
THRED
L
STICH
F,
LOWER
G,
HOOK
H,
OIL
I,
ACCESSORIES
OTHER
TENSION
SHAFT & PRESSER
TAKE-UP
REGULATOR
SHAFT & FEED
SADDLE
LUBRICATION
REPLACEMENT
of
belt
cover
ITS
ACCESSORIES
REGULATOR
FOOT
LEVER & NEEDLE
MECHANISM
ROCK
MECHANISM
MECHANISM
.........................................................................
PARTS
..............................................................
...............................................................
.........................................................
.........................................................
MECHANISM
MECHANISM
BAR
..........................................................
SHAFT
.....................................................
...................................................
...............................................
MECHANISM
MECHANISM
.........................................
............................................
:
....
5
6
8
11
14
16
18
21
24
27
30
l.Precautions before staring operation
1)
Safety precautions:
(
1)
When turning the power on, keep your hands and fingers away from the area around/under the needle
and the area around the pulley.
(2) Power must
(3) Power must
the machine, or when replacing.
4)
Avoid placing fingers, hairs, bars etc., near the pulley,
(
the machine is in operation.
be
turned offwhen the machine is not in use, or when the operator leaves the seat.
be
turned
off
when tilting the machine head, installing or removing the
"V"
belt, adjusting
"V"
belt, bobbin winder pulley, or motor when
(5) Do not insert fingers into the thread take-up cover, under/around the
is
in operation.
(
6)
If
a belt cover, finger guard, eye guard are installed,
devices.
2)
Precautions before starting operation:
(
1)
If
the machine's oil
If
the machine is lubricated
(2)
(3) When a new sewing machine is first turned on, verify the rotational direction
power
on.
(The pulley should rotate counterclockwise when viewed from the pulley)
(4) Verify the voltage and (single or three) phase with those given
pan
has an oil sump, never operate the machine before filling it.
by
a drop oiler, never operate the machine before lubricating.
do
not operate the machine without these safetv
ll..eedle,
on
the machine nameplate.
3) Precautions for operating conditions:
1)
Avoid using the machine at abnormally high temperatures C 3 5
lower)
2)
Avoid using the machine in dusty conditions.
4)
Specifications:
·c
or higher) or low temperatures C 5
or pulley when the machine
of
the pulley with the
·c
or
s
~
Sewing Msterial
Max Speed (rpm)
Stitch
length
Needle Bar Stroke (mm)
Presser Foot By Hand
Stroke (mm)
Hook
Stitch
length
Lubrication
Needle
Motor
Gauge
(mm)
By
Knee
Adjustment
System
GC24518-2
Medium-heavy
Standard
2.0
2.4
Automatic
DPXfi
Clutch Motor
-1-
I
2500
0-5
33.4
7.0
10.0
Dial
I
GC24518-1
Material
Hook
Hi#
2.How to Attach Needle
(Fig.l):
Note: Before using the following procedures, be sure
l).Loosen the needle clamping screw;
2).Hold the needle to its side with the long groove side toward left, and insert it
needle clamping hole.(GC24518-l);Hold the needles so that the two needles side with the long grooved
to
face
3).Tighten the needle clamping screw.
face, and insert
GC24518-1
it
as
deeply
GC24518-2
it
will go into the needle clamping hole.(GC24518-2);
to
turn the power switch
Winding
tension
adjusting
screw
1
Thread
/
guide
off.
as
deeply it will go into the
.li~1
~~t~t.~
E'{en
'w1nd1ng
w1th
an
amount
4/5
of
Fig.1
-
-
'····:.
Wind1ng
adjusting
amount
screw
Fig.2
j
full
capac1ty
3.How to Wind the Lower
Strength
Uneven winding:
Winding amount: When the bobbin is wound excessively,
4.Lead the
upper thread
5.Adjustment
of
winding: Particularly in the case
polyester thread, wind the bobbin loosely.
If
the bobbin is wound unevenly, slide
the thread guide toward the less wound portion of
bobbin.
loosen the adjusting screw. When
insufficiently tighten
Upper
Raise the thread take-up lever to its highest posmon
as
shovm in fig.3.
Thread
of
stitch length
Thread
the
adjusting screw.
(Fig.3) :
(Fig.
of
nylon or
the
bobbin
and
reverse sewmg
2):
is
anct
lead the
Fig.3
Stitch length I
adjusting dial •
-
aeveEr:::se:::l:::l:=e:$r~:::l
(Fig.4):
a)
Stitch length can be aqjusted by turning Dial;
b)
The figures on Dial Plate show stitch length
in
mm;
-2-
'"'----------'_'\
Fig.4
c)
Reverse feeding starts when Reverse Feed Lever is depressed, and the machine will feed forward again
if
Reverse Feed Lever
1s
released.
6.Adjust The
The position
tightness, and therefore must be adjusted according
sewing materials and sewing conditions.
7.Adjust the Pressure
Thread
of
Guide(List.l):
the thread guide affects stitch
of
Presser
Foot
C Fig.5):
As
shown in Fig.5, Turn the pressure regulating thumb screw to increase
foot.
8.How
base.
to
place the Bobbin into the Hook ( Fig.6):
Pull the bobbin thread about 5cm, Hold the bobbin
to
as
Thread
guide
position
Material
weight
Supply
sho·wn
in
Leftward
p
Heavy
More
or
fig.
6,
then place the bobbin into the hook
Center
p
Medium
Standard
List.1
decrease the pressure
Rightward
~
Light
Less
of
presser
Fig.5
9.How
1)
the
pass through the tension spring (single needle); From
pass the thread underneath the hook body, and pull the left thread to
the
pass through the tension spring (double needle).
2)
tum the balance
thread will hook out pulling the lower thread simultaneously
through the hole
other side of
to
lead the lower
As
shmvn in
hook body, and pull it to the right diagonally, and thread will
left and the right thread to the right diagonally, and thread will
As
shown
fig.
7, from the slit (1) pass the thread underneath
in
fig.
8,
holding the end
\-\heel slowly one around by right hand, the upper
of
needle plate, and leave the lower thread to the
the
needle plate. Close the slide plate.
thread
of
(Fig.
7,
Fig.8):
the
slit (1)
upper thread by left hand,
Fig.6
Fig.7
-3-
1
O.How
to adjust the lower
thread
( Fig.9):
The lower thread tension can
screw 2 clock-wise for more tension,
less tension.
ll.Adjustment
Turn the Thread Tension Nut left or right to loosen or tighten the pressure
12.Adjustment
of
upper
of
the
be
thread
thread
(Tighten
adjusted
or
by
rota6ng the screw 2, turn the
turn the screw 2 counter-clockwise for
(Fig.lO):
tension (
Tht-..:~d
nut
tension
Fig.ll):
of
upper thread.
Well balanced stitch
X
6~
In
case upper thread
is
too strong or lower
thread is too weak
Fig.9
.,if
Loosen
Fig.10
13.Adjusting thread take-up spring ( Fig.12)
1) AdJusting the thread take-up spring
stroke:
a.
Thread take-up
1:
upper thread
adjusting the stopper block 3.
b.
Thread take-up spring for right
Loosen the screw 2,
spnng
for left
11
~···
4:
upper thread
adjusting the stopper block
2) Adjusting the thread take-up spring
Loosen the screw
6.
5,
x~J
In
case upper thread
is too weak or
thread is too strong
Fig.11
9-For right
10-For right
lower
5
3
tension:
a.
Thread take-up
for left upper thread: Loosen the nut 7 and screw
spnng
tension
11,
then adjusting the tension screw. After adjustment, tighten
-4-
Fig.12
the nut 7 and screw
b.
Thread take-up spring tension for right upper thread: Loosen the screw 9, adjusting the nut
adjustment, tighten screw 9
11.
10.
After
14.Lubrication
l)
Before starting operation, be sure to pour oil up to the
position H
the oil supply
when a
period
the oilholes after removing the rubber plugs shown below
of
oil tank.
up
2) When a new se\ving machine is first operated, or
sevving
of
time
is
CFig.13-.
If
the oil below position
to position
machine which left out
operated, it will
H.
Fig.l4,
( Fig.13)
be
necessary to oil through
Fig.15):
L,
replenish
of
use for a long
Fig.13
(the direction
3) While operating the machine, check the
condition
windovv.
adjustment screw (Fig.
15.Installation of Belt cover (Fig.16
Set the screws
arm as illustrated. Assemble the belt guard 3 in the
direction
assembling
guard
3.
the pulley into the inside
screw·s
sho\Yn
in
arrows). (Fig.
of
oil lubrication through the oil check
The oil amount can be adjusted by oil
IS)
4,
6 and the washer 7 on the
of
the arrow, tighten it's screw The
of
the belt guard S
then, insert the belt guard 1 from the top
2.
is
of
the 3 and 5, tighten the
14)
the same
as
the belt
):
of
Fig.15
-5-
A.ARM
BED
24
AND
1 2
ITS
ACCESSORIES
14
15
(1)
25
23
22
1 (7)
18
(6)
17
16
-6-
A.ARM BED AND ITS ACCESSORIES
Fig.
No.
Part
No.
Description
......
I I
00
......
tr)
'<t
C'l C'l
u
0
C'l
00
......
tr)
'<t
u
0
Remarks
H4715B8001 Rubber plug
AOl
H2400B2080 Screw
A02
H2400B2060
A03
H2400B2050 Oil
A04
H3200B2070 1bread
A05
A06 H3000D2160 Screw
A07 HA300B2170
H3200B2030 Side
A08
H3200B2050 1bread
A09
H3200K0210
AlO
H3200K0220 Special nut
All
H6311B8001
A12
H2000B2010 Rubber plug
A13
HA700B2060 Screw
A14
Al5
H2400B2100
H2000M0080
Al6
H3200B2080 1bread guide (middle)
A17
H3212B0066
A18
Ai9
H3200B2100
A20 H3200K0240
H2004J0067 Screw
A21
H3229K0741
A22
H3229K0742 Felt
A23
H3200B2020 Face plate
A24
HA300B2160 Screw
A25
A26 HA307B0673
H2400B2050
A27
Spacer
guard plate
Screw
cover (left)
Thumb screw
Side cover (right)
1bread
Cap 2
1bread guide complete(lower)
Screw
Cover
Oil guard plate
Rubber plug
guard plate
Oil
guide
take-up cover
guide
5
2
1 1
1
1
2
13
1 1
'1
1 1
1 1
1
1
2
1
1
1
1
1
2
1
1
1
2
2
1
5
q>13
2
SM3/16(28)x 12.1
1
1
SM9/64( 40)x4.5
2
SMll/64(
13
t
M10X33
MIOx8.5
1
1
SM11/64(40)x8
2
1
2
1
1
SM9/64(40)x6.5
1
1
SM9/64(40)x7
2
1
1
1
2
SM11/64(40)x10
2
1
40)x9
'
-7-
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