Highlead GA2688-L User Manual
HIGH
LEAD
GA2688-L
Long
Arm
Compound-Feed
Extral
Cylindrical Bed
Heavy Duty
Instruction Manual
Parts
Catalog
SHANGHAI HUIGONG
N0.3
SEWING MACHINE FACTORY
1,
I'I~IT~l
~~r
1 J
(
2)
(
:1)
2,
VIAT\J
:1,
PREP.~RATION
4,
REPLACE
0,
111\DINGOFBOBBINTHREAD
fi,
:\D.Tl
(I)
(2)
C
:1)
7,
THRE:\DI"'G
i'L
I!I~Wl'v 1 ~c;
Y,
.\DJl'STI"iG
10,
11,
TIONS
SCi
f
~;tv
Precautions
Precautions
BEFORE
Precautions
before
for
SPECIFICATION
FOR
OPERATION
NEEDLES · .....
STMENT
In
case
OF
of
THE
uneven
Windingaruountofthread
Winding
strength
........................
AND
INSERTING
THE
THREAD
.\DWSTMENT
.\DJLSTMENT
OF
PRESSER
OF
WALKING
---
STARTING
.; · · · · · ·
OPERATION
;-.
· · · · · · · · · · •
Starting
Operating
Conditions
•·····•··•··•·••··
CONTENT
......................................................
.-.
· ·· · · · · · · · · · · · · · ·· · ·· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 2
Operation
·•·••·•··•··•··•··•·•·•••··•··•··
·····································································
························•············································
---
······•··•··
···•····•
·····•···
..........................................................................................
···
......
•· · •·
· · · ·•· ·
......
··· ··· •··
......
•·· ··· ·· · ··· ···
•·
· ··· ···
...
•·
· ··· ··· ·
.............................................................................................
BOBBIN
WINDER
winding
•·
· · .. ··· ·· ·•··
.........
··· ... ··
....
··· ... · .. · .. · ·· · .. ·
....
.......................................................................................
..........................................................................................
...................................................................................................
··· ···
THE
TENSION
FOOT
FOOT
.......................................
BOBBIN
..............................................................................
.......................................................................................
PRESSURE
AND
.........
PRESSER
• ·
....... • ....
FOOT
...............................................................
· •
··· ···
.....................
.....
•·
· · · · .. · • .. · .. • · • · · · .. · · • · • · · •
···
............
•··
..................
.....
··•··· ··· •·· ... 4
· · .. •··
...........
•··
...............
..........
··· 2
2
2
2
3
4
· •·· 4
4
4
4
4
5
5
· ·.. 5
6
12,
ADjt:STMENT
1
:1,
FEED
14,
ADJUSTING
:l,
l S
I
DOG
I·\JG
HEIGHT
OF
THE
OF
THE
HAND
STITCH
.....
· ... ·
HEIGHT
WHEEL
LENGTH
AND
..... · ........
OF
THE
• .. · · ·
......
FORWARD/BACKWARD
·•·
............
NEEDLE
· .. · ·
BAR
........ · ....
•··
.................................
..................
· .. •
SEWING
..........
.............................. · ........
· · · · · · · .. · .. • · ·
··
...............................
• · · · · ·
.. · ....
· .. · .. · · · · · · ·
.... · .... · ......
.........
· .. ·
..............
•··
...
· · · · · · 6
· · ..
·..
6
6
7
-1-
1.
PRECAUTIONS
1)
Safety Precautions:
(I)
When turning the power on, keep your hands and fingers away from the area around/under the needle
and the area around the balance wheel.
Power must
(2)
be
BEFORE
turned
off
STARTING OPERATION
when the machine is not in use, or when the operator leaves the seat.
Power must
(3)
the machine, or when replacing.
( 4) Avoid placing fingers, hairs, bars etc., near the balance wheel,
or motor when the machine is in operation.
Do
(5)
(
not insert fingers into the thread take-up cover, under/around the needle, or balance wheel when the
machine
6)
If
a belt cover, finger guard, eye guard are installed, do not operate
devices.
be
turned
is
in operation.
off
when tilting the machine head, installing
"V"
2) Precautions before Starting O.veration:
(I)
If
the machine's oil pan has an oil sump, never operate the machine before filling
(2)
lfthe
machine
(3) When a new sewing machine is first turned on, verify the rotational direction
the power on. (The balance wheel should rotate counter-clockwise
wheel)
( 4) Verify
the
is
lubricated
voltage and (single or three) phase with those given on the machine nameplate.
by
a drop oiler, never operate the machine before lubricating.
or
removing the
belt, bobbin winder balance wheel,
the
machine without these safety
ofthe
when
viewed from the balance
"V"
belt, adjusting
it.
balance wheel with
3) Precautions for Operating Conditions:
(I)
Avoid using the machine
lower) .
(2) Avoid using the machine in dusty conditions.
at
abnormally high temperature (
2 ~ MAIN SPECIFICATIONS
Max. Speed
Needle
Needle Bar Stroke
Thread Take-up Lever Stroke
Stitch Length
By
Hand
Presser-Foot Stroke
By Knee
35
800 rpm
DYX3
56
nnn
96
nnn
11
nnn
13
nnn
20nnn
·c
or higher) or low temperature ( 5
26#
·c
or
-2-
3-..
PREPARATION
FOR
OPERATION
1 ) Cleaning the machine
Before leaving the factory, the machine parts are coated with rust-preventive grease, which may be
by
hardened and contaminated
2)
Examination
dust during storage and shipment. This grease must
be
removed with gasoline.
Though every machine
parts may be loose
performed after cleaning the machine. Turn the balance wheel
collision, uneven resistance or abnormal noise.
operation.
3)
Lubrication
When a new sewing machine
long time
is
used again, replenish a suitable amount
or
is
confirmed by strict inspection and test before leaving the factory, the machine
deformed after long distance transportation with jolt. A thorough examination must
If
these exist, adjustment must
(Fig.l.L
Fig.1.2-.. Fig.1.3)
is
used
for
the first time, or sewing machine left out
of
oil
to
the portions indicated by arrow in below figure.
to
see
0
if
there
is
running obstruction, parts
be
made accordingly before run-in
of
use for considerably
1.
be
3
CAUTION:
4)
lubricated
CAUTION:
according
Please
Always
use
keep
white
the
spindle
presser
oil.
foot
Testing
In
order
to
get the best working situation, run the sewing machine in a low speed
fully.
Then increase the speed
Before
The needle used by this sewing machine
to
the
using
sewing thread.
the
(the
to
the need
following
sewing thread should be able
lifted
one.
procedures,
is
DY
before
X 3
attempting
be
sure
26#.
During operation, proper needle can be chosen
to
pass the pinhole.)
-3-
to
turn
a
dry
run.
for
about 1 month after
the
power
switch
off.
4.
REPLACE NEEDLES (Fig.2)
CAUTION
procedures,
The needle used
26#.
Turn the balance wheel to lift needle
upper end
While keeping the long groove
fully insert the needle shank up to the bottom
needle socket. Then tighten needle clamp screw (A).
5-.
as
far
wind from below in clockwise direction several times
around the bobbin.
driYing
start the machine.
from
filled with thread.
of
its stroke. Loosen needle clamp screw (A).
Note: Fig. (b): insufficient insertion.
Fig. (c): wrong direction oflong groove.
WINDING
I) Push the bobbin 3 on the bobbin winder shaft
as
it will
2)
Bring the thread forward toward the bobbin and
3) Push the lever 5 toward other side so that the
wheel and driven wheel will engage and then
4) The driven wheel will automatically
the driving wheel and stop after the bobbin is
:
be
go.
Before
sure
to
by
OF
using
turn
this sewing machine is DY X 3
BOBBIN
the
following
the
power
switch
bar
of
the needle leftward
THREAD
be
off.
to the
of
free
the
(Fig.3)
Long
groove
A
b
2
c
6
-.
ADJUSTMENT OF THE BOBBIN
WINDER (Fig.3)
I)
In
case
of
uneven
lf
the thread does not wind evenly on the bobbin, loosen
the nut I and move the bracket 2 to the right or to the left as
may
be
required, then tighten the nut.
2) Winding
Adjusting 6 can increase or decrease the amount
\\OUnd
on
the bobbin.
amount
3) Winding strength
Strength
7..
THREADING (Fig.4)
Raise the needle bar to its highest position and route the
upper thread
of
the winding can be adjusted with the nut
in
the order illustrated below.
winding
of
thread
of
thread
1.
-4-
8...
REMOVING AND INSERTING
(
1)
Removing: Open the shuttle race cap and the bobbin holder, then take out the bobbin.
(2) Installation:
freely.
Install the bobbin in the bobbin case so that the thread wound direction is clockwise. Then close the rotary
hook
and
the shuttle race cap.
9
...
ADJUSTING
Put the bobbin
THE
in
the rotary hook case, Permit about 5 em
THREAD TENSION (Fig.5)
THE
BOBBIN
of
bobbin thread to hand down
5
I ance
For ordinary stitching, the tension
(1) Tension
Before adjusting the tension
serrated nut
you desire
(2) Tension
The lower thread tension
bobbin case. Turning this screw
left (counter -clockwise) will decrease the tension.
10-.
ADJUSTMENT
(I)
Pressure should
Pressure on both the walking foot and the presser foot can
(2)
set before shipment.)
Sewing pressure should be adjusted
(3)
of
the
Upper thread
on
tension device
to
decrease the tension.
of
the lower thread
be
or
of
the upper thread, be sure that presser foot
to
the right (clockwise)
is
controlled
to
the right (clockwise) will increase the thread tension, while turning it
OF
PRESSER
adjusted according to the material to
We
Upper
I I
ba
thread
lower
of
the upper and the lower threads should
by
to
the minimum required strength .
strong
thread
the larger screw near the end
FOOT
weak
to
increase tension and
PRESSURE (Fig.6)
.---------~~~--~~-------.--~
be
Upper
lower
sewn.
be
adjusted. (The adjusting screw has been
thread
thread
be
equal.
is
let down.
to
the left (counter-clockwise)
of
the spring at the outside
weak
or
strong
To
adjust tension, turn
of
to
if
the
the
-s-
11"
ADJUSTMENT
OF
WALKING
FOOT
AND
PRESSER
FOOT
(Fig. 7)
(1) The alternating movement
relations
12.,
SEWING
of
the parts
(2) Changing the position relation
(3) Adjustment should be changed according
of
the presser foot lifting mechanism
ADJUSTMENT
(Fig.S)
(
1)
Adjusting the stitch length adjusting bolt can change the stitch length.
(2) Stitch length can be adjusted between
(3) Setting the stitch length adjusting bolt above
on
OF
the walking foot and presser foot can
of
STITCH
be
the connecting link 2 and the crank 3
to
the thickness
LENGTH
0-11
nnn
"0"
of
the material to
AND FORWARD/BACKWARD
can backstitch.
adjusted
can
by
changing the position
complete the adjustment.
be
sewn.
13, FEED DOG
The feed dog should be
vertex
of
the needle plate. Adjustment
height can be done
(I) Tum the machine balance wheel so
the
feed
dog
to
its
(2) Loosen the screw
height by raising or lowering
14
._
ADJUSTING
THE
NEEDLE
When the needle bar
normally the measurement between the highest point
of
the needle plate and the needlepoint
When this distance need to
HEIGHT
as
follows:
highest point.
of
the feed dog and adjust the
it.
THE
BAR (Fig.10)
(Fig.9)
1.5
mm
higher than the
of
the feed dog
as
Then tighten the screw.
HEIGHT
is
at its highest point,
is
be
adjusted, the steps
to
28
10
raise
OF
mm.
is
-6-
as follows:
(
1)
Take down the face plate, adjust the needle
(2) Loosen the screw
(3) Adjust the needle
( 4) Tighten the screw.
15-.
USING
If
hand wheel Just push the hand wheel in and rotate
OF
you want to change the position
Caution:
of
needle
bar
connecting stud screw.
bar
to
the right position.
THE HAND WHEEL(Fig.ll)
forbid
to
push
the
bar
to
its highest position.
of
the needle when the machine is not running, you can use the
it.
hand wheel
when
the
machine
is
running.
-7-
A.ARM BED AND ITS ACCESSORIES
25
/
(j)/'
26
2728
https://manualmachine.com/I
~/
31
~/24
/w..
31
--w
36
!
29 / f)
33 1
I
48
46
23
.......
,_
'·
32
-8-
2
18
A.ARM BED AND ITS ACCESSORIES
Fig.
No.
A01
A02 H8910B8001 Bed 1
A03 H7215B8001
A04 H7216B8001
A05 HA307B0674 Rubber plug 2
A06 H7217B8001 Needle
A07 HA100C2020 Set Screw
A08 HA100C2020 Set Screw 1
A09 H7218B8001 Presser
A10 HA305E0662 Set Screw
All
Al2
Al3
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A33
A34
A35
A36
A37
A38
A39
A40
A41
A42
A43
Part No.
H8908B8001
H7219B8001 Pin
HA100C2020
H7220B8001
H2405D0664 Set Screw
H7225B8001 Ann side cover 1
HA100B2060
H7228B8001 Round cover
HA100B2060 Screw
H7235B8001 Worktable for accessories
HA7311C806 Screw
H7236B8001 Face plate
H7238B8001 Screw
H7240B8001 Thread guide
H3410C301K Screw
HA115B0702 Nut
H7241B8001 Tension spring
HA310B0705 Tension disc
H7242B8001
H2010J0066
H7243B8001
HA111G0683 Screw
H7244B8001
H7245B8001 Screw
H7246B8001 Thread guide
HA115B0702
H7241B8001
H7248B8001
H7249B8001 Felt
H7250B8001
H7251B8001
HA710N0683 Nut
H7253B8001
H7254B8001 Spring
Ann
pipe
Oil
wick
Oil
bar
guide bracket stud bushing 1
bar
bushing
Set Screw
Mandril.
Screw
Tension screw stud
Tension nut
Thread tension regulator complete base
Tension releasing disc
Tension nut
Tension spring
Washer
Damping plate
Tension screw stud
Thread take-up spring
of
needle bar guide bracket
Description
Pes.
Remarks
1
1
3
1 SM15/64(28)x10
SM15/64(28)xl0
1
1 SM15/64(28)x4.5
1
1 SM15/64(28)x10
1
1 SM15/64(28)x14
SM11/64(40)x9
1
2
2 SM11/64(40)x9
1
2 SM1l/64(40)x9
1
SM15/64(28) x22
2
1
SM9/64(40)x6.5
1
1
1
2
1 SM9/32(28)
1 SM9/32(28)
1
2 SM11/64(40)x12
1
1 SM3/16(28)
1
1
1
2
2
1
SM15/64(28)
1
SM15/G4(28)
1
1
1
-9-
A.ARM BED AND ITS ACCESSORIES
Fig.
No.
A44
A45
A46
A47
A48
A49
ASO
A51
A 52
A53
Part
No.
H7255B8001
H3410C301K
H7257B8001
H7258B8001
H7259B8001
H7260B8001
H7261B8001
HA7311CC06
H7262B8001
H3410C301K
A 54 HA300B2100
A55
HE957B8001
HE040D8001
A56
A57
HE962B8001
A58
HE961B8001
A59
HE965B8001
A60 HE963B8001
A61
HE966B8001
A62
HE965B8001
A63
HA700F2100
A64
HE951B8001
A65
H2015I0065
A66
HE958B8001
A67
HE017G8001
A68 HE023C8001
A69
HE007C8001
A70 HE960B8001
A71
H8921B8001
A72
HE022G8001
Description
Thread take-up spring guide plate
Screw
Screw
Nut
Tension spring
Tension
Thread
Screw
Thread guide 1
Screw
Rubber
Bushing
Screw
Spring
Pin
Hand
Hand
Screw
Cover
Screw
Top cover
Screw
Gear
Screw
Screw
Screw
Screw
Gear
Screw
disc
tension
plug
whell
wheel
regulator complete base 1
shaft
Pes.
1
SM9/64(
1
1
SM1/8(44)
1
SMl/8(44)
1
1
SM9/64(
1
1
SM9/64(
1
1
SMI7/64(24)x17.5
1
3
3
1
1
SM1/4(32)x6
2
1
4
SMll/64(40)
1
SM3/16(28)
1
1
SMI/4(32)x5.5
1
SM1/4(32)x5.5
1
SM17
1
1
1
1
/64(24 )x
SM114(32)x11
SM1/4(32)x10.5
Remarks
40)x6.5
40)x6
40)x6.5
11
'
-10-
Loading...