HIGHLEAD GC20528 series User manual
Customer
Service
Copy
HIGH
LEAD
GC20528 series
Twin-Needle High Speed Split Needle
Bar
Lockstitch
Sewing Machine
Instruction Manual
Parts
Catalog
SHANGHAI HUIGONG
N0.3
SEWING MACHINE FACTORY
CONTENTS
PRECAUTIONS BEFORESTARTING OPERATION-------------------------------------- 1
PREPARATION
FOR
OPERATION
1.
Power
cable connection
------------------------------------------------------------------
2
2.
Connection
of
control
box
-------------------------------------------------------------
3
3.
Adjustment
of
needle
bar
stop
position
---------------------------------------------------------3
CAUTIONS
ON
USE 1-
1.
Oiling (
1)
-------------------------------------------------------------4
2.
Oiling
(2)
---------------------------------------------------------------------4
3.
Oiling condition --------------------------------------------------------4
4.
Adjustment
of
oiling
to
rotating
hook
----------------------------------------------------------5
5.
Cautions
on operation ------------------------------------------------------------------5
OPERATION
1.
Installation
of
needles------------------------------------------------------------------------5
2.
Wmding
of
bobbin
thread ------------------------------------------------------------6
3.
Selection
"<)f
thread
---------------------------------
-------------------6
4.
Threading
of
needle
threads
-----------------------------------------
------------------6
5.
Adjustment
offeed (stitch)
length
and
stitch
reversing
(touch-back)
--------------------------
7
6.
Setting
of
bobbin
---------------------------------------
7
7.
Adjusting
of
needle
thread
guide
------------------------------------------------------------7
8.
Threading
of
bobbin
threads
---------------------------------------------------------------8
9.
Tension
adjustment
of
bobbin
threads
--------------------------------
----------------------8
10.
Balance
of
thread
tension
--~----------------------------------
_:
____________________
8
11.
Needle
thread
tension
------------------------------------------------------------------8
12.
Adjustment
of
presser
foot
p~essure
-----...,------------------------------------------------------9
13.
Timing
between
rotating
hook
motion
and
needle
motion----------------------------------------9
14.
Adjustment
of
feed
dog
height------------------------------------""'----------------------------
10
15.
Relationship
between
rotating
hook
motion
and
take-up
lever
motion
------------------------
10
16.
Relationship
between
hook
.
motion
and
opener
motion
--------------------------------------- 11
17.
Relationship
between
needle
motion
and
feed
dog
motion
------------------------------------
11
18.
Installation
of
movable
knife------------------------------------------------------
12
19.
Adjusbnent
of
thread
trimmer
cam
-------------------------------------------------------
13
20.
Adjustment
of
meshing
pressure
of
movable
knife
and
fixed
knife
---------------------------
14
21.
Sharpening
of
fixed
knife
---------------------"---------------------------------
14
22.
Adjustment
for
change
of
needle
gage
------------------------------------------------------
15
23.
Wiper
adjustment
-----------------------------------
16
SPECIFICATIONS----------------------------------------------------------------
17
PARTS CATALOG
1.
Arm
bed
its
accessories----------------------------------------------------------
18
2.
Thread
tension regulator mechanism-------------------------------
-:
--------------:.
__________
20
3.
Arm
shaft & presser
foot
mechanism--------
.:.
-------------------------
~
-----------------
23
..
..
•.
, \ I
4.
Needle bar rocking motion mechanism
-------------------------------------------------------
26
5.
Stitch regulator mechanism
-------------------------------------------------------------------
28
6. Lower shaft & feed rock shaft mechanism
----------------------------------------------------
30
7.
Hook saddle mechanism
-----------------------------------------------------------------------
33
8.
Knife mechanism (- )
------------------------------------------------------------------------
36
9.
Knife mechanism (= )
-----------------------------------------------------------------------
38
I0. Touch back mechanism & detector mechanism
--------------------:--------------------------
41
11.
Wiper mechanism
_________________________________________________
_:
__________________________
43
12.
Oil lubrication mechanism
--------------------------------------------------------------------
45
13.
J\ccessories
------------------------------------------------------------------------------------
48
(;t\.lJ(;E:
J>t\.ll.l'S
l,l.A.1'
-------------------------------------------------------------------------
51
~
.
PRECAUTIONS BEFORES STARING OPERATION
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 pulley.
2) Power must be turned
off
when the machine
is
not used, or when the operator leaves his/her seat.
3) The power must be turned
off
before 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 operation. Injury could result.
5) Do not insert fingers into the thread take-up cover, under/round the needle, or pulley when
the machine is in operation.
6)
If
a belt cover, finger guard, and/or eye guard are installed, do not operate the machine without
these safety devices.
2.
Precaution before Starting Operation
I) Ifthe machine's oil pan has an oil sump, never operate the machine before filling
it.
2)
If
the machine is lubricated by a drop oiler, never operate the machine before lubricating.
3) When a new sewing machine
is
first turned on, verify the rotational direction
of
the pulley with the
power on. (the pulley should rotate counterclockwise when viewed from the pulley.)
4)
Verify
the voltage and (single or three) phase with these given on the motor nameplate.
3. Precaution for Operating Conditions
I) Avoid using the machine at abnormally high temperature (35°C or higher) or low temperature (S°Cor
lower). Otherwise, machine failure may result.
2) Avoid using the machine
in
dusty conditions.
Avoid using the machine
in
areas where too much electrical noise, resulted from the high-frequency
welder and others,
is
generated.
-1-
PREPARATION
FOR
OPERATION
overall
view
ofassembled
sewing
machine
1.
Power cable connection
1)
Connection
to
Power Supply
Balance
wheel
(included
synchron
i
zer)
Control
box
When
connecting the power supply connector
to
the
control
box,
the connector should
be
completely
plugged
in
the
proper receptacle after confirming
the
connector type
and
matching direction.
A.
In
case
of
three-phase electrical power system,
the
"U"
phase
should
be
connected
to
the
red
lead,
the
"V"
phase
to
the
white
lead,
and
the
"W" phase
to
the black
lead.
The motor rotary direction depends,
however,
upon
the
setting
of
the internal switch
in
the
control
box
as
described
in
Paragraph
1-P)
CAUTION: The green wire must be connected to the ground terminal
in
order to ground the
motor properly.
B.
The
appropriate power
fuse
capacity
is
as
follows.
Power supply 200V-240V: I
OA
IOOV-J20V:
15A
(b)
Insulating
tape
(a)
Bare
wire
(2
to
3
turns
wrapped)
2) Lamp Leads
A.
When
installing the illuminating
lamp
(6V,J5-20W),The connecting wire
is
attached
on
the back
of
the Control
box.
It should
be
removed
and
connected
by
removing
the
insulating tube
from
the
wire
and
stripping properly.
Lamp
leads
-2-
lnsldating
tape
(2
to
3
turns
wrapped)
Lamp
leads
The wire connections should be, then, insulated
by
wrapping insulating tape on the wires.
CA
UT
ION: The power switch must be Turned offbefore connecting the lamp.
B.
When the illumin.ating lamp
is
not used, the end
of
the lamp leads must be insulated as (a)
or
(b) as
shown
in
the figure on right side.
If
a short circuit occurs failing to insulate, the transformer
in
the
control box will be possibly burned out.
CAUTION: The illuminating lamp must not be connected with any heater, such as a foot warmer
and others, in parallel. Otherwise, the load capacity will be exceeded.
It
may cause
transformer winding burned out.
3) Rotary direction
It
is
possible to change the rotary direction
of
the motor by·removing the rubber cap from the bottom
left side
of
the front cover on the control box, and push the internal direction selector switch. The
built-in lamp
in
the internal switch
is
off
when the motor
is
rotating counterclockwise as facing to the
motor pulley, and on when rotating clockwise. The rotary direction has been set to counterclockwise as
facing to the motor pulley, matching with the machine prior to shipping
2. Connection
of
control 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
Round
hate
In
tabla
combination when replacing the machine head or motor control panel.
3.
Adjustment
of
needle
bar
stop position
1)
Adjust
of"UP"
position
When the pedal
is
kicked down by heel, the
machine stops at
"UP"
position.
If
the marks
deviate larger than 3 mm, adjust as follows.
a) Disconnect the plug (
12
pins)
of
cable from
the machine head.
b)
Run
the machine and stop at
"UP"
position.
c) While holding the pulley, insert the "adjusting
-3-
while
mark
"UP"
position
Black
mark
"DOWN"position
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. Ifthe marks deviate
large
than
5
mm,
adjust
as
follows.
a)
Disconnect
the
plug (
12
pins)
of
cable
from
the
machine
head
b)
Run
the
machine
and
stop
at
"Down" position.
c)
While
holding
the
pulley, insert the "adjusting
<-ID
tool"
in
the
hole "B", then remove
the
tool.
3) Confirm
the
stop operation, then set
the
plug (
12
pings) coming
from
the
machine
head
into
the
receptacle.
CAUTIONS ON USE
1.
Oiling (
1)
Fill
the
oil reservoir with oil
up
to
"H"
mark.
Oil
level
should
be
periodically checked. If
oil
level
is
fottnd
below "L"
level
replenish
oil
to
"H"
level
.
For oil, Use white spindle
oill.
2.
Oiling (2)
When
a
new
sewing machine
is
used
for
the
first
time, or sewing machine left out
of
use
for
considerably long
time
is
used again, replenish a suitable amount
of
oil
to
the
portions indicated
by
arrow
in
the below figure
--:
-:.
:e;-·
·- ';
.
.....
-
~
..
··
~,,.
...
~
Quantity
of
oll
:
2-
3
drop•
3.
Oiling condition
(I) See dripping
of
oil
during operation through
the
oil
sight window
to
check oiling condition
in
the
-4-
machine arm.
(2) Please use the oiling adjusting screw
with respect to oiling to take-up lever
mechanism.
4. Adjustment
of
oiling to rotating hook
5.
Cautions on operation
a) When the power
is
turned on
or
off, keep
foot away from the pedal.
b)
It
should be noted that the brake may not
work when the power
is
interrupted or power
failure occurs during sewing machine operation.
c) Since dust
in
the control box might cause
·
-------
Adjuat:in•
Screw
malfunction
or
control troubles, be sure to keep the control box cover close during operation.
d) Do not apply a multimeter to the control circuit for checking; otherwise voltage
of
multimeter
might damage semiconductor components
in
the circuit.
OPERATION
l.
Installation
of
needles
Note: Before installing the needles, be sure to turn
off
the power.
Double
Needle
lnalll
th•
1111d1
uplo
the
bollllm
of
nnd1
cllmp
ind
t1"1!en
lhl1c"w
knping
lhl
lorw
••n
1icl1
of
n11dll
fi1e1
to
flee
0
Long
groove
lide
lnlllflicienl
lnllllion
-5-
x
Needle
dlllorted
2. Winding of bobbin thread
Note: When bobbin thread
is
wound, keep the presser foot lifted.
Adjustment:
Tension
of
wound thread
Conically wound thread
Length
of
wound thread
Slack winding
is
recommended for polyester thread and nylon thread.
Move the thread guide toward smaller diameter
of
wound thread layer.
Loosen the thread length adjusting screw to increase length
of
thread and tighten the screw to decrease length
of
thread.
3. Selection
of
thread
Winding
amount
ad
j
ustlnv
screw
It
is
recommended to use
"S"
twist thread
in
the
left needle (viewed from front), and
"Z'
twist
thread
in
the right needle. When discriminate
use
of
needle threads
is
impossible, use
"Z
" twist
thread
in
both the needles.
For bobbin thread,
"S
" twist thread as well as
"Z"
twist thread can be used.
4. Threading
of
needle threads
a) Pass each needle thread through thread guide A
~;:>
~
~
)(
~
~~
)(
)(
f.
It
el'
V.
lf
l<h
tt
g
wi
th
i)
tn
<
>•mt
of
80%
:J
' •.
111
-:
a
oa
ci
tv
Note: When thin slippery thread (polyester Thread
or
filament thread, for example)
is
used pass the
thread through thread guide
Bas
well.
b) With the take-up lever located at the upper most position, pass each needle thread
in
the order
shown
in
the following figure.
Note: Pressing the upper thread loosening button shown
in
the figure below opens the saucer
of
the
upper thread tension adjuster, and the upper thread can easily pulled out.
-6-
@@
@@@
···-.
......
..
_
,
___
..
_
..
-
..
--·--
-·
-·
5. Adjustment
of
feed (stitch) length and stitch reversing (touch back)
Note:
To
make feed (stitch) length smaller, depress the feed reverse lever and set the feed length
setting dial to a desired position
Touch-back button
..
. Direction
of
stitching can be reversed by depressing this button.
Stitching goes on
in
reversed direction while the button
is
held down, and returns to forward
direction when the button
is
released.
f11dlongth
Mttingdial
k
~
6. Setting
of
bobbin
leading the lower thread and install the bobbin
(I)
Pulling out thread from side A, then install the
bobbin case.
(2) Threading following (I
)~(S)
(3) Put the bobbin case to rotating hook, then replace
hook shaft.
(4) Press the bobbin bar.
(5) Leading the lower thread over bed plate .
-7-
7.
Adjusting
of
needle
thread
guide
8.
(I)
(2)
9.
Please adjust needle thread guide
of
needle thread
tension according to sewing condition.
Thread
Left
Middle
Ri1ht
1uide
r)
~)
~
position
~
-
The
thicker
~}
Stand-
The
thinner
lbterial•
then than
standard
8
ard
standard
•edle
thread
lore
Standard
Lesa
supply
Threading
of
bobbin threads
Put the hook into the bobbin case
and press down the latch .
The thread end should be left on the bed.
While holding the two needle thread by left
hand, rotate the wheel one
tum
by right
hand. By pulling up the needle threads, as
shown
in
the figure, the bobbin threads will
be lifted. Both
of
bobbin thread and needle
thread should be aligned and led backward.
Tension adjustment
of
bobbin threads
11.
Needle thread tension
• Needle thread tension should be adjusted
in
reference to bobbin thread tension.
•
To
adjust needle thread tension,
tum
each tension
adjusting nut.
• Needle thread tension can be also adjusted for special
-8-
10. Balance
of
thread tension
AO_?::~
CA~
I Balance tension
BX~11~
, · Tf9ht
needa
orlooaa
bobbin tenalon
cx2~
1
LOCJa:n;;ae;or
ngnr
bobbin tension
fabric and thread by changing intensity and movable range
of
slack thread adjusting spring.
12.
Adjustment
of
presser foot pressure
Pressure to
fabri~(s)
can be adjusted by turning
The pressure adjusting screw.
13.
Timing between rotating hook motion
and
needle motion
(I)
Set stitch length on the stitch length setting dial
shown table.
(2) When needle
is
lifted A shown table, from the
lowest positional, as shown
in
Figure, the
following positional relationship should be maintained.
The upper edge
of
needle eye should be 1.0-I.6mm
below the hook point.
The hook point should be located at the center
of
needle axis.
Gap between the hook point and the side face
of
needle should be 0.05mm.
• Position
adjustment
of
hook point
Adjust the hook point so that it comes to the center
of
needle axis.
(I)
Lean the machine head backward and loosen three
set screws
of
hook shaft gear (small)
(2) Turn the balance wheel and stop when the needle
is
lifted A
mm
shown table from the lowest position.
(3) Rotate the hook by hand to position the hook point to
the center
of
needle axis.
(4) Move the hook bracket leftward
or
rightward and posi-
tion it so that gap between the hook point and side face
of
needle is 0.05mm. For this adjustment, each screws
A, B and two
of
C should be loosened.
Note:
In
the adjustment, do not excessively loosen set
screws C and always maintain meshing
of
hook shaft
gear and lower shaft gear.
(5) Tighten the set screws
in
the following order:
a. While pressing the lower shaft gear (large) agains.t the
side face
of
hook bracket, tighten the set screws C first.
- 9
--
Preaaure
reaul1111tlns thuntJ
aorew
Model -M -B
Set the stitch
length 3 4.5
Needle life A 2.2mm 2.4mm
O•p
betwHn
hook poi
nt
•nd
upper
eds•
of
need
I•
•Y•
~~m'-f
+--C::::~=s:;::;e~:===~
.-
N••dlo
I l
fe
:
A
fr'""
nHdl•
A • :
lower dead
point
~·
Oenter
of
ne•dl•
nl•
Set:
screw
of
hook
Set:
eor-.~
\
Set:
•c~
"e'
b.
After checking gap between the needle and the hook,
c.
Then tighten the set screws
B.
• Position
adjustment
of
needle point
Adjust needle position so that gap between the upper
edge
of
needle eye and the hook point
is
1.0-1.6
mm
when the needle
is
lifted
by
A mm from its lowest
position shown
in
before page.
(I)
Loosen the needle bar screw A.
(2) Rotate the needle clamp B one circuit ( amount
of
Adjustment is 0.6mm
),
or loosen the needle bar
tighten the set screws
A.
•...,
...
, £••0
---
~
i
ll
Needle
bar
acrew
A
~-~
screw
C,
rotate position screw D halfa circuit
(amount
of
adjustment
is
0.3mm
).
(3)
Be
sure to mark the needle clamp facing left side, Tighten needle bar screw C and A..
14. Needle
bar
stop position (left & right)
Note: The stopper wrench can be operated while the
sewing Machine running, but the best way
is
to
adjust while Take-up lever stopping at its highest
position.
(I)
Stop the motion
of
left-side needle bar:
Make the stopper wrench to the position
L.
(2) Stop the motion
of
right-side needle bar:
I
//
/
I L ·
-
~~--.,~
':::J...
\
j--Stoper
wrench
_,,
;...
Needle
nudler
\.
-\'
(8)
Bu1h
Inc
wrench
.-
Make the stopper wrench to the position
R.
(3) Two needles running at the same time:
The
reldion1
b1twe1n needle
1titoh
ind
n11dl1
number
(wit)
11
th1
•P
between
two
n11dlu
i1
1/4)
Press down restore plate, stopper wrench
restore to 0 position automatically.
15.
Relations between curve angle
and
stitch length
(I)
Determine the stitch length according to
the form to obtain various.
(2) The needle number
of
another outside needle
can be obtained while the angle be determined.
(3) Example: While the angle is 40°,
if
the stitch
is
2.9mm, then the outside needle number is 6.
":::::
..
2
-
,~
¥6
-78
...
;~
'
48
4.0.-3.
-
.
7
-+--
3-.0-~
4~·
I
uJ
3.5 2.9 2.5 2.2
so·
4.6 3.4 I
2.
1
2.
3 1
2.
o t.1
so·
s.s J .1 2.s 2.2
t.
9
i.
6
10·
4.6 3.0 2.3 1.8 1.5
so·
3.s
2.5
1.9
1.s
1.3
90"
100·
110·
120·
130°
140"
3.2
2.7
2.2
1.8
11.5
1.1
2.1
1.8
1.5
1.2
1.6 1.3
1.3
-IO-
16.
Adjustment
of
feed dog height
Height
of
feed dog and pressure
of
presser foot should
be
adjusted for individual fabric(s) with the following
cautions:
• Fabric will be damaged
ifthe
feed dog extends too high,
or
pressure
of
presser foot
is
too large.
• Even stitch length cannot be assured
if
the feed dog
is
too low
or
pressure
of
presser foot is too small.
• Feed dog height should be measured at the point where
the needle
is
at
the top position.
For light fabrics······ Approx.
O.Smm
from throat plate
For usual fabrics······Approx. 1.0mm from throat plate
For heavy fabrics······Approx. 1.2mm from throat plate
Adjustment procedure
a) Lean the machine head backward.
b)
Turn the hand wheel by hand and stop when the
Feed dog rises to the maximum height.
c) Loosen the feed bar set screw.
?n~mz}
O.
Smm
-
~m;!
lmm
l.2mm
d) Vertically move the feed bar (in the direction indicated by arrow
in
the figure) to adjust
it
to
adequate height.
e) After the adjustment, tighten the feed bar set screw.
• The feed dog height
is
factory-adjusted to 1.0mm
17.
Relationship between rotating hook motion
and
take-up lever motion
When the timing belt (toothed belt) was removed for
its replacement, for example, the relationship between
rotating hook motion and take-up lever motion should
be
adjusted as follows:
a) Turn the balance wheel and stop when the take-up
lever
is
lifted to its top position.
b) Lean the machine head backward and make sure the
arrow (timing mark) put on the timing belt
is
in
line
with the black line on the boss
of
hook shaft bearing.
c) Ifthe timing mark
is
not
in
line with the black
line,
remove the timing belt and install it again to adjust.
-
11
-
Timing
belt
sprocket
18.
Relationship between hook motion
and
opener motion
a) Turn the balance wheel
by
hand and stop when
the opener holder
is
located most remotely from
the throat plate.
b) Make sure gap between the bobbin case holder A
and the opener
is
approximately 0.2mm.
Approx
.
0.2mm
c)
If
the gap
is
too large
or
small , loosen the opener
set screw
Band
adjust position
of
the opener. A
Opener
Screw
Opener
hdder
19. Relationship between needle motion
and
feed dog motion
• The feet dog should be adjusted so that the needle can plunge into the feed dog needle
hole at the center
of
the hole.
(I)
Set stitch length to
"O"
on the stitch length setting dial
(2) Lean the machine head backward.
(3) Loosen the feed shaft crank set Screws A and B
(4) Set the needle at the lowest position.
(5) Adjust the distance between the pressure bar and
the needle bar to be 13.5, and tentatively tighten
the screws A and B
of
the feed shaft crank.
(6) Check that the right feed shaft crank
is
connected
with the link at right angle, as shown
in
Figure.
(7)
If
the connection
is
not at right angle, remove the
Feed
shaft
crri
<middle)
Feed
shaft
crar*
(rlaflt)
back cover, loosen screw C and move the needle bar rocking rod
in
the arrow direction to adjust.
(8) After the completion
of
adjustment, fully tighten the screws A ,
Band
C.
Pressure
bar
Feed
shaft
crlrit
(rllht)
-
12
-
20.
Installation
of
movable knife
(1)
Initial position
of
movable knife
a.
Turn
the balance wheel and lower the needle bar
to
the lowest position.
b.
Push
the
cam
follower crank so that the cam roller enters into the thread trimmer cam groove.
c.
Turn
the
balance wheel until the black mark point
on
the
arm
meets the white mark point on
the
balance wheel.
d. Set
the
cam
follower crank at this position with a screwdriver temporarily preventing the cam
roller coming out
from
the cam groove.
e.
Loosen
the thread trimmer rocking crank clamp bolts A and
B.
f.
Adjust the movable knife so that the movable knife end slant portion protrudes 0-0.5
mm
from
the
fixed
knife,
as
shown
in
Figure
and
tighten the bolts A and
B.
Thread
lr1mmer
rocking
crank
ror.kmg
r.rnnk
(2)
Gap
between movable knife
and
bobbin case holder
stopper
a.
Turn
the balance wheel
by
hand until needle reaches the
lowest position.
b.
With
the
needle at the lowest position, depress cam follower
crank, turn the balance wheel until the movable knife reaches
the
extremity
of
its
stroke.
c. Manually rotate the inner hook
in
the direction indicated
by
arrow
in
Figure
and
adjust gap between the movable knife
and
the
inner hook stopper
to
about 0.2
mm
(the screws A
and
8 should
be
loosened
for
this adjustment).
21.
Adjustment
of
thread trimmercam
~-----------~
Mon
able
knife
a.
Tum
the balance wheel
by
hand until the needles reach the lowest position.
b.
Maintaining the needle position, depress the cam follower crank and put the cam roller into the
groove
of
thread trimmer cam.
-
13
-
c. Turning the balance wheel by hand, adjust the thread trimmer cam so that the movable knife starts
moving when the green mark point on the balance wheel comes in line with the black mark point on
the arm. * To adjust, loosen two thread trimmer cam clamp screws A.
Cam
follower
QI[-
·-
Thread
trimmer
cam
22.
Adjustment
of
needle threads tension release assembly
Green
mark
point
Black
maik
point
a. Turn the balance wheel by hand until the needles reach the lowest position.
b. Maintaining the needle position, depress the cam follower crank and put the cam roller into the groove
of
thread trimmer cam.
c.
Turning the balance wheel by hand, adjust the thread tension release cam so that the tension disc close
when the white mark point on the balance wlieel comes
in
line with the black mark point on the arm.
To adjust, loosen two tension release cam clamp screws A.
d. Opening degree
of
tension disc should be adjusted with the tension release roller B mounted on the
convex portion
of
thread release cam, as shown
in
Fig.
To adjust, loosen the screws C and draw the wire.
e.
Make fine adjustment by loosening the nut D.
,
Thre&I trimmer
cam ScrewC
CID
-
14
-
White
park
point
Table of contents
Other HIGHLEAD Sewing Machine manuals
HIGHLEAD
HIGHLEAD GC24698-1L User manual
HIGHLEAD
HIGHLEAD GC2698-2 User manual
HIGHLEAD
HIGHLEAD GC20618 Series Instruction Manual
HIGHLEAD
HIGHLEAD GA2698-1 Instruction Manual
HIGHLEAD
HIGHLEAD GC20618-1DZ Instruction Manual
HIGHLEAD
HIGHLEAD GC0618-1-SC Instruction Manual
HIGHLEAD
HIGHLEAD GC24018 Installer manual
HIGHLEAD
HIGHLEAD GC24698-2B User manual
HIGHLEAD
HIGHLEAD GK31058 SERIES User manual
HIGHLEAD
HIGHLEAD GC24698-2B User manual
HIGHLEAD
HIGHLEAD GC20698 Series User manual
HIGHLEAD
HIGHLEAD GC24608-2 Instruction Manual
HIGHLEAD
HIGHLEAD YXP-18 User manual
HIGHLEAD
HIGHLEAD GC0360-1 User manual
HIGHLEAD
HIGHLEAD GC24698-BRHL User manual
HIGHLEAD
HIGHLEAD GC20818-MD Instruction Manual
HIGHLEAD
HIGHLEAD GC0618-1 User manual
HIGHLEAD
HIGHLEAD GC20638 User manual
HIGHLEAD
HIGHLEAD GA1398-1 User manual
HIGHLEAD
HIGHLEAD GA0688-1 Parts list manual
Popular Sewing Machine manuals by other brands
JUKI
JUKI Union Special 36200L220-60 Adjusting instructions and illustrated parts list
Brother
Brother Duetta 4500D Quick reference guide
Janome
Janome Memory Craft 5000 Servicing manual
Singer
Singer CG-550 Workbook
Atlanta Attachment Company
Atlanta Attachment Company 1347MTA Technical Manual & Parts Lists
Riccar
Riccar IBR 104 instruction manual
