HIGHLEAD GC22618-1B User manual
iii.
® HIGHLEAD
GC22618-1B
Cylinder-Bed Unison Feed
Sewing Machine
INSTRUCTION MANUAL
CATALOG
From the library of: Diamond Needle Corp
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 be turned
off
when the machine is not in use, or when the
operator leaves the seat.
3) Power must be turned
off
when tilting the machine head, installing
or
removing the
"V"
belt, adjusting the machine, or when replacing.
4) Avoid placing fingers, hairs, bars etc., near the pulley,
"V"
belt, bobbin
winder pulley, or motor when 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.
2. Precautions before starting operation:
1)
When a new sewing machine
is
first turned on, verify the rotational
direction
of
the pulley with the power on.
2) Verify the voltage and phase (single or three) with those given on the
machine nameplate.
3. Precautions for operating conditions:
1)
Avoid using the machine at abnormally high temperatures (35°C or
higher)
or
low temperatures (5
OC
or
lower) .
2) Avoid using the machine in dusty conditions.
4. Specifications:
Max. Sewing Speed (rpm) 2,200
Needle
DPX17
22#
Needle Bar Stroke (mm) 34.2
Thread Take-up Lever
~troke
(mm) 72.1
Max.Stitch Length (mm) 6
Presser Foot Stroke
Byhand(mm)
8
By knee (mm)
14
Alternating Movement (mm) 2.0-6.0
1
From the library of: Diamond Needle Corp
5.
Preparation
before
starting
operation:
1)
CleaniDg1he
machine
Before leaving
the
factory,
the
machine
parts
are
coated with
rust-preventive
grease,
which
may
be
hardened
and
c:ontamioated
by
dust
duringstoJage
and
shipment. Thisgrease must
be
removed withgasoline.
1)
Examination
Though
evay
machine is
inspeded
and tested slricdy before leaving the
factory, the machine parts
may
be
loose
or
deformed
after long distance
banspotlalion.
~
joiL A thorough examination must
be
performed after
cleaning
the
machine..
Tmn
the balance wheel
to
see
if
there is running
obsbuclion, parts collision, uneven
resislance
or
abnormal noise.
If
these
exist,
adjuslmcot
must
be
made
accordinglybefore run-in operation.
3)
Lubrication
When
a
new
machine
begins
to
be
used
or
an
old
machine which left
out
of
use
for
a long time is
to
be
used
again,
it
must
be
lubricated fully.
(fhe
spots
wbich
anowheads
~need
to
be
lubricated.Fig.l)
Please
use~
spindle
oil
Please
ap6ft
pnsser
foot
wheo
the
machine
is
operated without
material.
Fig.
I
2
From the library of: Diamond Needle Corp
4)
Run-in
operation
A
new
machine runs
at
a low speed (1600rpm)
for
about a month after
being lubricated sufficiently, each
of
parts will achieve its best state. Then
increasing speed
to
the maximmn according
to
the natme
of
the work
musl
he
done.
6.
How
to
attach
a needle (Fig.2):
Note:
Beforeattach the needle, be
sure
to
tmnthe
power
switch
ofi.
This machine
's
needle size is DPX17
#122.
Needle
size
must
be selected
according to the thread rightly. (Thread
need
to
pass
the
pinhole
of
the needle
freely.)
Insert
the
needle
until
it
boaoms.
and
tighten
the
screw keeping
the
lang
groove
in
the
needle
facing
to
1he
left:.
Longgroove
facing
to
the
.
left X
Fig..2
7.
Winding
the
lower
thn2d:
(Fig.3):
X
1) Push a bobbin on
r--------------.,.
the
bobbin
winder
spindle
(3)
as
far
as
it
will go.
2)
Pull
out
the
thnnn and wind thread
around the bobbin
for
several
circles clockwise;
F"rg..
3
3
From the library of: Diamond Needle Corp
-----
3) Push the lever 4 backward so that the wheel
of
the pulley touches the
"V" belt, then start the machine.
4) The pulley will separate from the "V" belt automatically after the
bobbin is filled with thread.
8. Adjustment
of
the bobbin winder: (Fig.3):
I)
In case
of
uneven winding
Loosen the screw 5
in
the tension bracket and move the bracket to the
right orto the left as may
be
required.
2) Adjustment
of
the
amount ofthe thread
Adjusting screw 6 can adjust the amount
of
the thread. Tightening the
screw will increase the amount, otherwise the amount
of
the thread will
decrease.
3) Winding strength
Adjusting the nut 7 can adjust the winding strength.
Adjusting screw 6 can adjust the amount
of
the thread. Tightening the
screw will increase the amount, otherwise the amount
of
the thread will
decrease.
9.
How
to route the upper thread (Fig.4):
Raise needle bar to its highest possible position, and perform threading as
shown in Fig.
Fig.4 Fig.S
4
From the library of: Diamond Needle Corp
10. Removing and inserting the bobbin (Fig.5):
1)
Taking out the bobbin: open the cover, take out the bobbin.
2) Inserting the bobbin: replace the bobbin into the shuttle bobbin case,
shutdown the cover. Be sure to make the bobbin rotate counterclockwise and
pull out the thrum.
11.
Adjustment
of
the thread tension (Fig.6,
7,
8):
1)
The tension
of
the upper and lower
thread must be equal so as to adopt normal stitch.
(Fig.6 a)
2) Tension
of
the upper
thread (Fig.7)
Before adjusting the
tension
of
the upper thread, it
should be certain that the
presser foot
is
let down but
not in other position.
Adjusting the thumb nut can
adjust the tension
of
the
upper thread. Rotating the
thumb nut clockwise, the
tension
of
the upper thread
will increase. Otherwise, the
tension
of
the upper thread
will decrease.
3) Tension
of
the lower
thread (Fig.S)
Turning the large screw
clockwise will increase the
tension
of
the lower thread.
Fig.6
5
:.
T]cJCJif:fOC!CJ-
Fig.7
Fig.S
a
b
c
From the library of: Diamond Needle Corp
Otherwise, the tension
of
the lower thread will decrease.
12. Adjustment
of
presserfoot pressure (Fig.9):
I)
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.
Fig.9
13. Adjustment
of
walking foot
and
presserfoot:
1) Adjustment
of
alternating movement (FiglO):
(I)
The alternating movement on
...---------------.....,
the walking foot and presser foot can
be adjusted by using adjusting dial
located on the top cover.
Dial
(2) Face the desired number
printed on the dial to the matching
mark located on the top cover. The
number printed on the dial represents
the possible protrusion
of
the walking
foot and presser foot from the throat
plate when the alternating movements
on these are evenly set.
Presser foot
(3) The alternating movements
can be readjusted
up
to 2.0-6.0mm.
~Walking
foot
kto-5.~
h
?????
Fig.IO
2)
To
change the balance
of
the alternating movements between the
walking foot and presser foot (Fig.ll):
(I)
To
increase the rise
of
the walking foot and decrease the rise
of
the
presser foot:
CD
Remove the rubber plug
of
top cover.
6
From the library of: Diamond Needle Corp
® Rotate the pulley until the presser foot
is
slightly raised from the throatplate.
@ Loosen screw
"A"
(on the right side)
@ The built-in spring pulls down the
presser foot until it makes contact with the throat
plate. Tighten the screw "A".
@ After this adjustment, the protrusion
of
the presser foot has been decreased by a set
distance. And the same distance has increased
Rubber plug
•&I;
t
shaft crank
the vertical motion
of
the walking
foot.
Fig.
II
(2) As a contrary case (1) ,
to
decrease the rise
of
the walking foot and
increase the rise
of
presser foot as follows:
Fist, rotate the pulley until the walking foot is slightly raised from the
throat plate. Next, loosen screw "A". Finally, tighten screw "A". This decreases
Lte
rise
of
the walking
foot.
3) Installing the feed
regulator
bracket
(Fig.12):
Note:
If
the feed
regulator bracket
is
poorly
positioned,
the
resultant
alternating movements may
be too short
or
long,
causing defective machine
operation.
(1) Set the clearance
between special screw
"A"
located on the regulator stud
and the side wall
of
the
machine
arm
to 26.5mm as
Fig.12. Fig.l2
7
From the library of: Diamond Needle Corp
(2) With the feed regulator stud held as explained is step (1) above,
adjust the feed regulator bracket. This adjustment should insure a clearance
of
12mm between the periphery
of
pin
"B"
located on the feed regulator bracket
and the top cover mounting face located on the arm. Tighten screw "C".
4)
Feed
pitch
adjustment
of
walking foot (Fig.13):
The ratio
of
the upper feed amount
(of
the
walking foot) to the lower feed
amount
(of
the feed dog) has been adjusted to 1:1. Hawe¥er,lhe..walking.
fo.ot
feeding amount can be increased
or
decreased depending
on
the operating
conditions. Loosen the nut located on the upper feed rock shaft crank (left), and
shift to adjust the position
of
the pivot bracket
upward
or
downward.
Upper
position-Feed
pitch-Small
Lower
position-
Feed
pitch-
Large
Fig.l3 Fig.l4
14.
Adjustment
of
stitch length
and
reverse sewing
(Fig.14):
I)
To
change the stitch length, rotate the stitch length adjusting dial.
2) Pressing the stitch length adjusting lever for reverse stitching.
15. Safety clutch device: (Fig.15,
16, 17,
18):
Safety clutch device is installed to prevent the hook and cog belt from
8
From the library of: Diamond Needle Corp
damage in case
th
e thread is caught into the hook when the mach
in
e is loaded
abn
orma
ll
y during operation.
1) Function
of
safety clutch.
(I)
When
th
e safety clutch acts, the
cog
belt pull
ey
will
be
unloaded.
Then
the rotation
of
ho
ok
shaft wi
ll
stop.
The
a
rm
shaft only wi
ll
rotate. Stop the
ope
ration
of
machine.
(2) Clean the thread thoroughly
wh
i
ch
is
caug
ht into the hook.
(3) Turn the
cog
belt hub by hand, and check
Whether the hook shaft r
otates
li
ghtly and
properly, place the clutch dei
ce
as follows.
Fig.
IS
Fig. l6
2) How to
set
the
safety clutch.
( I) Wh
il
e pressing
do
wn
the
push button on the opposite side
of
bed by
left hand, turn the balance wh
ee
l sl
ow
ly by
ri
ght hand away from
yo
u as sh
ow
n
in the
fi
gure.
(2)
The
ba
lance wheel will stop by
the
gear plate, but
tum
the
balance
wheel more firml
y.
(3)
Relea
se
the push button.
(4) As shown in the Figure, the safety clutch device is set.
3) Force applied to
the
safety clutch
(I)
The
force
app
li
ed
to the safety clutch is the smallest
when
the white
mark
of
the eccentric pin faces the
ce
nter
of
the
lower shaft.
The
force
proportiona
ll
y increases
as
the white mark faces the outsid
e.
9
From the library of: Diamond Needle Corp
(2) To adjust
the
force slide the timing belt, loosen the set screw, and turn
the eccentric pin.
(3) After the adjustment, make sure to fasten the set screw.
Low
Shaft
Eccentric
Pin
Fig.17 Fig.
IS
16. Adjustment
of
the height
of
the feed dog( Fig.19):
The
max. height
of
the feed
dog
1from
the surface
to
the needle plate 2 is normally
Imm. To adjust this height:
I)
Lay
down
the machine head toward
the other side, and
tum
the
pulley
so
as to raise
the feed
dog
to
its highest position;
2)
Loosen bell
crank
screw and
adj&t
the
height
of
the
feed
dog
by
raising
or
lowering
it.
3)
Tighten the screw after adjustment.
17. Relative position
of
the feed
dog to needle plate (Fig. 20) :
I)
Set the stitch length at minimum.
2)
Tum
the
pulley
so
as
to
raise the feed
dog
to
its highest point.
2
Fig.I9
3)
Lay
down
the machine head toward the
L-----------'
other side, loosen
the
screw (E); Fig.20
4)
Adjust the needle plate
to
the center
of
the needle hole
on
the feed dog.
10
From the library of: Diamond Needle Corp
5) Tighten the screw.
18.
Adjustment
of
the height
of
the needle
bar
(Fig.21):
When
the needle bar
is
at
its
highest
position, normally the measurement between
the surface
of
the needle plate and the upper
end
of
the needle eye
is
22.3mm.
You
can
adjust this at its lowest position.
In
this case,
normally the measurement between the
surface
of
the needle plate and the upper end
of
the needle eye is
11
mm.
To
adjust this,
loosen screw (B.fig.3), and raise or lower
the needle bars may be required. Then
tighten the screw.
22.lmtn
c:::=:::~~===--,_j_
Fig.21
19.
Adjustment
of
feed
timing
(Fig.22):
1)
The standard position
of
the eccentric feed cam and eccentric feed
lifting cam are illustrated to Fig.22
2) Open the top cover, properly slide the eccentric ring to adjust the
position.
(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 when adjusting.
1
st
screw Upper shaft
Upper eccentric feed
lifting cam
Fig.22
11
Eccentric
feed cam
From the library of: Diamond Needle Corp
A,
ARM
BED
AND
IT'S
ACCESSORIES
• •
11
..::::::::--
2
89
90
From the library of: Diamond Needle Corp
A,
ARM
BED
AND
IT'S
ACCESSORIES
No.
Ref.
No.
Description
Pes.
AOI
H5301001
Screw
3
A02
H5301002
Arm
side
cover 1
A03
H5301003
Rubber
plug 2
A04
H5301004
Screw
6
A05
H5301005
Set screw 2
A06
H5301006
Screw
I
A07
H530I007
Spring 1
AOB
H5301008
Pin 1
A09
H5301009
Dial
for
upper feed
lifting
I
AIO
H530IOIO
Oil guard I
All
H5301011
Face
plate
I
AI2
H5301012
Rubber
plug 4
AI3
H5301013
Thread take-up cover I
AI4
H530I014
Screw
I
Al5
H5301015
Three hole thread guide I
AI6
H5301016
Upper
feed
lifting
regulator
cam
I
AI7
H5301017
Oil
box
I
AlB
H5301018
Screw 3
AI9
H5301019
Top
cover I
A20
H5301020
Screw 2
A21
H5301021
Screw
2
A22
H5301022
Slide
block I
A23
H5301023
Face
plate
screw 2
A24
H5301024
Screw
I
A25
H5301025
Thread guide I
A26
H5301026
Thread guide I
A27
H5301027
Screw I
A28
H5301028
Screw 1
A29
H5301029
Thread guide I
A30
H5301030
needle guide
plate
(right)
I
A31
H5301031
Needle
plate
1
A32
H5301032
Set screw 2
A33
H5301033
Stop
plate
1
A34
H5301034
Screw
2
A35
H5301035
Bushing 1
A36
H5301036
Screw 3
From the library of: Diamond Needle Corp
A,
ARM
BED
AND
IT'S
ACCESSORIES
No.
Ref.
No.
Description
Pes.
A37
H5301037
Set screw 4
A38
H5301038
Hinge screw 8
A39
H5301039
Arm
bed hinge 1
A40
H5301040
Slide
plate
1
A41
H5301041
needle guide
plate
(left)
1
A42
H5301042
Oil guard
plate
1
A43
H5301043
Oil guard
plate
block 1
A44
HS301044
Screw
1
A4S
HS30104S
Screw
2
A46
H5301046
Tension
releasing
plate
1
A47
H5301047
Tension
releasing
spring
1
A48
H5301048
Stopper 1
A49
HS301049
Screw 1
ASO
HS3010SO
Thread take-up
spring
1
A51
HS301051
Lever 1
A52
HS301052
Screw 1
AS3
HS301053
Stop
ring
1
AS4
HS3010S4
Screw
1
ASS
H53010SS
Thread
tension
stud
1
AS6
H5301056
Screw
2
AS7
H5301057
Screw
1
A
58
H5301058
Plate
complete 1
AS9
H5301059
Plate
1
A60
HS301060
Plate
complete 1
A61
H5301061
Screw
2
A62
H5301062
Stopper 1
A63
H5301063
Screw 1
A64
H5301064
Thumb
nut 1
A65
H5301065
Take-up
spring
guard 1
A66
H5301066
Thread
tension
post
1
A67
H5301067
Bush
1
A68
HS301068
'screw 1
A69
H5301069
Mounting
plate
1
A70
H5301070
Nut
2
A71
H5301071
Mounting
plate
1
A72
HS301072
Pin 2
From the library of: Diamond Needle Corp
A,
ARM
BED
AND
IT'S
ACCESSORIES
No.
Ref.
No.
Description
Pes.
A73
H5301073
Thread tension
stud
1
A74
H5301074
Pin 1
A75
H5301075
Spring 1
A76
H5301076
Push
button 1
A77
H5301077
Thread tension
disc
2
A78
H5301078
Thread tension
releasing
disc
1
A79
H5301079
Spring 1
ABO
H5301080
Thumb
nut complete 1
A81
H5301081
Thumb
nut
revolution
stopper 1
A82
H5301082
Thread tension
stud
1
A83
H5301083
Thread tension
disc
2
A84
H5301084
Spring 1
ASS
H5301085
Thumb
nut 1
A86
H5301086
Thread guide 1
A87
H5301087
Screw
1
ASS
H5301088
Thread
releasing
pin 1
i\89
H5301089
Arm
1
A90
H5301090
Arm
bed 1
A91
H5301091
Supporter 1
A92
H5301092
Screw 1
A93
H5301093
Screw 1
A94
H5301094
Washer
1
A95
H5301095
Link
plate
1
From the library of: Diamond Needle Corp
From the library of: Diamond Needle Corp
B,
ARM
SHAFT
MECHANISM
No.
Ref.
No.
Description
Pes.
B01
H5302001
Pin 1
B03
H5302002
Oil wick 1
B04
H5302003
Screw
1
B05
H5302004
Needle
bar
crank 1
B06
H5302005
Screw
1
B07
H5302006
Screw
1
BOB
H5302007
Screw
1
B09
H5302008
Felt
1
B10
H5302009
F~lt
Bll
H5302010
Arm
shaft
bushing
(left)
1
B12
H5302011
Screw
1
B13
H5302012
Screw 2
B14
H5302013
Feed
cam
(left)
1
B15
H5302014
Screw
1
B16
H5302015
Oil guard
plate
1
B17
H5302016
Feed
cam
crank 1
B18
H5302017
Balance
wheel
1
B19
H5302018
Screw 2
B20
H5302019
Felt
1
B21
H5302020
Arm
shaft
bushing (middle) 1
B22
H5302021
Screw
2
B23
H5302022
Arm
shaft
collar
1
B24
H5302023
Feed
cam
(right)
1
B25
H5302024
Screw
2
B26
H5302025
Holder 1
B27
H5302026
Felt
1
B28
H5302027
Stop
ring
1
B29
H5302028
Connecting rod
for
upper feed 1
B30
H5302029
Pulley (upper) 1
B31
H5302030
Screw 1
832
H5302031
Spring
stop
ring
2
B33
H5302032
Screw
1
B35
H5302033
Arm
shaft
bushing
(right)
1
B36
H5302034
Arm
shaft
1
B37
H5302035
Screw
2
B38
H5302036
Balance wheel 1
From the library of: Diamond Needle Corp
B...
ARM
SHAFT
MECHANISM
No.
Ref.
No.
Description
Pes.
839
H5302037
Cog
belt
1
840
H5302038
Oil wick 1
841
H5302039
Set screw 1
842
H5302040
Pin 1
843
H5302041
Thread take-up
lever
1
844
H5302042
Thread take-up
link
1
845
H5302043
Oi
1 wick 1
846
H5302044
Needle bar connecting
link
1
From the library of: Diamond Needle Corp
From the library of: Diamond Needle Corp
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