Highlead GC24698-5R, GC24698-5L, GC24698-6 User Manual
I
HIGH
LEAD
GC24698-5RI-5L/-6
l
Post-bed
lockstitch
Instruction
heavy
sewing
duty
Parts
compound
machine
Manual
Catalog
feed
(20)
SHANGHAI HUIGONG
N0.3
SEWING MACHINE FACTORY
----- CONTENTS-----
!.OPERATING INSTRUCTION ......................
UP
THE
2.SETTING
3.CAUTION BEFORE STARTING
4.0ILING········
S.NEEDLE··········· ........
6.THREAD···········"·······
?.WINDING
THE
MACHINE .....................................
THE
······
···
· ..........................................
.........
......
.....................
..
······
..
············································
LOWER
THREAD
ON
OPERATION·· .. ········· .......................................................................... 1
..........
.............
..........
...
..............................
...
........................................................................................................... 2
..
··· ...................................................................................... 3
THE
BOBBIN ................................................................................... 3
...
..................
............................................................................... 1
...
....................................................................... 2
........................................................ 1
. . .
8.THREADING
9.
Iill
GULATING
10. ADJUSTMENT
11
. ADJUSTMENT
12
.REVERSE STITCHING ........................................................................................................................................ 5
13.IillLATIVE POSITION
NEEDLE
14.
ADJUSTMENT
15. TIMING
THE
NEEDLE .....................................................
TilE
TH:READ TENSIONS···
OF
OF
THE
AND
THE
THE
BET'\VEEN
THE
STITCH
PRESSURE
OF
NEEDLE
HEIGHT
THE
HOOK
··
................................................................................................... 4
LENGTH
.............
VIBRATING AND
HOLE
OF
THE
AND
OF
FEED
THE
..............
..............
THE
FEEDER .............
DOG .....
NEEDLE ................
......
...................................................................... 3
..................................................................................... 4
...
. ::···
·· .........
....
..........
.......
............
LIFfiNG
............................................................................... 6
PRESSER
....
.........................................................
....
............................................................ 6
BAR, ALSO,
....
.........
...................
OF
THE
...
5
6
16.ADJUSTMENT
17.ADJUSTMENT
18.TIMING
19
.ADJUSTMENT
20.ADJUSTMENT
21.REPLACEMENT
22.TO
OFTHE
RE-ENGAGE
PARTS CATAL
A.ARM BED
B.
ARM SHAFT MECHANISM ..............................................................
C.PRESSER
.S
TITCH REGULATOR AND
D
E.HOOK SADDLE MECHANISM(GC24698-6)··
F.HOOK SADDLE MECHANISM(GC24698-SL)·········· ..
GHOOK
H. THREAD
SADDLE MECHANISM(G·C24698-SR) ............................................................................................... 29
TENSION REGULATOR MECHANISM ..........
OF
OF
VffiRATINGAND LIFTING PRESSER
OF
OFTHE
OF
THE
OG
AA'D IT'S
FOOT
MECHANISM .......................
BOBBIN CASE OPENER ................................................................................................. 7
THE
HEIGHT
THE
CLEARANCE
THREAD
THE
CONNECTION BELT ........................................................................................ 10
SAFETY CLUT
ACCESSORIES·····-·· ...................................................................................................... 12
OF
CONTROLLER
FEED
ROCKING MECHANISM ................................................................. 20
THE
PRESSER
FOR
THE
CH
.....................................................................................................
...
........................
......................
FEET
VIBRATING AND
SPRING ................................................................... 10
··
.. ····· ........................................................................... 26
..................................................................... 8
FEET
............................................................... 8
LIFTING
....
............................................................. 14
......
................................................................ 17
...
....................
......
.......................................................
...
...................
PRESSER
,.
.............
...............
FEET· ... 9
11
...
........... 23
32
!.SPECIAL PARTS
J.SPECIAL PARTS F
K.ACCESSORIES······ ................................................................................................................................................ 38
FOR
GC24698-5L/5R······· .................................................................................................
OR
GC24698-6 ......................................
...
....................................................................
...
.......
.. 35
37
l.OP
ERATING INSTRUCTIONS
HIGHL
EAD GC24698-5L, GC24698-5R, GC24698-6
SERIES MODEL
This
is
a guide to use
high speed for heavy-duty materials sewing machine with compound feed and walk i
under the best condition.
Pl
ease read this guide
of
H!GHLEAD GC24698-5L, GC24698-
thor
oughly so
that
you may expect good
5R,
GC24698-6 series model long-arm
perform
Specifications
SING
LE
NEEDLE
GC
24698-5LI5R
MAX.
SPEED
MAX.
STITCI-
PRESSER FOO
CLEAI?i\~CE
N
EEDL
E
13013BIN
W
ORKING
13ED
DIMENSION
!'OWER
M
OTOR PULLE
(s.p.m.) 1,
1 (
rnm
)
S
IZE
SPACE
ll
EQU 1
T !land L
P
(mm)
(mm)
RED
Y
DIA
cda
(W)
.
iJ
l 1
(mm
)
.i
ter
ft
(rnm)
er (mm
)
DY
<I>
70
I
~>
60
(50 I 60H
200
10
20
28
X 3
(sanda
508 X 15
846
X
75
0\V SERVO MOTOR
z)
rd
No.
230
<I>
ng
foot feeding mechanism,
ance.
T
WO
NEEDLE
GC24698
24-26)
-6
3
70
I
cl>
60
(50 I 60
Hz)
USE
FOR
Tent, Sailcloth, Rubberized,
Lea
ther, Etc.
2.SETTING UP
Setting up the machine on the table after removed two pieces
supporting bolts ( A ) under the bed.
3.CAUTION
THE
MACHINE CFig.l
BEFORE
Fabr
ics, Heavy Synthetic, Heavy Upholstery Materials, Fiber Plate,
)
STARTING
THE
OPERATION
I)
Do not operate the machine, even
idling, unless it has been properly oiled
reservoir required lubrication.
During pract i
2)
The
niachine pulley turns toward to the operator.
3) Do not operate the machine at maximum.speed
ce
period.
th
~
if
only for testing and
at
every
spot
n
ew
machine should be oiled more frequ ency.
of
or
and
1,200 s.p.m., for starting
of
± -
ope
ration.
To
take practi
Fig. I
ce
operati.on at speed
materials in case by case.
of700
s.p.m., but operating speed are to
be
changed to
- 1
proper
conditionsuitable for the
4.0ILING ·(Figs.
2,
3,
4, 5&6 )
I) Oil should be applied
Fig.2
at
each
ofthe
place designated by arrows in Figs.
2,
Fig.3
3,
4,
5&6
Fig.4
Fig.6
2) When
in
continuous use,
S.NEEDLE (Figs. 7)
it
should be oiled
at
least twice a day.
Fig.S
c=:~~
-·--
..
.
I • •
.-
~
..~
~
I)
HIGHLEAD
DYxJ
GC24698-5L,
(sandard No. 24-
· GC24698-
26)
5R,
GC24698-6
ser
ies machines are
-2-
set
up to use standard needle
of
. . ..
.
.·#
~
"'
· '
.:
·
..
...
.-
--
~:-
2) The size
materials.
3)
To
toward you until the needle bar moves up to its highest
point, put the needle
it
outside.
4) Tighten the needle
of
needle to be used shou
insert the needle, turn the machine pulley over
up
into the needle b3r as deeply as
will go, with the long groove
set
screw secu;·ely.
ld
be' determined
of
the needle faced
by
the size
of
thread, type and thickn·ess
6.THREAD (Fig. 8)
Fig.7
No'rmally, left twisted thread is used for upper (needle) thread. (But, for left side needle
it
can be finished
in
fine results w!th right twisted thread.) .
\\\\\\\\\\\\\
1//IIZZZIZ(I;
of
the
sewing
of twin-ne'ectlc machine,
Left
Twist
7.WINDING THE LOWER
I)
Pass the thread through ( I ) - ( 3 ) , and wind several times
of
bobbin winder.
2)
Press the lever (
operation
TI1e
of
bobbin will automaticaliy
5)
the machine.
THREAD
to arrow direction, then the bobbin winds the thread automaticall
be
stopped after the bobbin is fillecl with thread.
ON THE BOBBIN (Figs. 9 & 10)
Fig.8
Right
Twist
aro~..;nd
the bobbin (
4)
, which set
y,
in
up
to the shaft
~ngage
with the
Fig.9
-3
-
.10
B.
THREADING
THE
NEEDLE (Figs.11&12 )
I) Pass the thread from thread guide ( I ) - eyelet (
( 5)- thread take- up spri
need le
to tension thread guide (
2) Wi
machine
the bobbin thread,
the feed dog. Lay
bar
thread guide ( 1
th
the left hand hold
pulley
over
the
ng
(
6)-
gu
ide (
7)-
take-up lever (
0)
- thro
ug
h the
eye
4)
.
the
end
of
the needle U1read leaving it
toward you until
draw
up the needle thread, and the bobbin thread will
threads
back
the
needle moves down and up again to its high
under the presser feet and close the slide.
-
~
1
2)
- tension disc (
8)-
of the needle (
slack
3)
- tension thread
guide (
7)-
l
ower guide
11
) .(Remark) Wind
from
the
hand
come
guide
(
9)-
se
the
thr
ead a sing
to
the
needle. Turn the
est
point, U
up with it through
(
4)
- guide
lf threading
le time
ms ca.rching
the
hole in
9.REGULATING
I)
The
tension on the needle thread is
2)
The
tension on the bobbin thread is regulated by the screw
case B ( Fig. 1
To increase the tension, turn
screw to the left.
THE
4)
Fig.
ll
THREAD TENSIONS (Figs. 13 & 14 )
reg
ulated by the thumb nut A
.
over out
or
screw to the right, and
(Fig.
13)
of
the tension spring on the
to
decr
ease the tension, turn
outs
ide
over
Fig.l2
of
the bobbin
nut
or
Fig
.l3
-4-
Fi
g.l4
lO.ADJUSTMENT OF
Th
e length of stitch is re
(
2)
slow
ly with ri
gulated
ght
hand in the cond ition
THE
STITCH LENGTH (Fig.
by
pressing
down
the
of
setting the top
15)
button ( I ) with l
of
button ( 1 )
eft
hand,
while
to
the
turning
feed
ecce
the
machine pull
ntric.
ey
To incre
the machine pu
When the desired l
to the original position.
ase
the l
ll
~
ength of
ey to opp
ength of
1
stitc
h, turn the
osite direct
stitch
is
ion.
obta
machine
ined,
operate
pulley
over tow
the machine
•
Fig.
IS
ll.ADJUSTMENT OF THE PRESSURE (Fig.16)
ard you.
after fully con
To
decrease
firmed r
the l
ength of stitch, turn
eleasi
ng the
button
Fig
( I )
.l6
The pressure
To increase rhe pressure, tum the
12.REVERSE
To feed the work t
of
the
presser
STITCHING (
owa
rd
you,
fee
t is regulat
press t
..
...
.
~
r
ed
by
screw
to
clockwise, and
Fig.17
he
button A (Fig. 17 )
..
j
the
adjusting screw.
)
decrease
it,
turn the
screw
to coun
ter-cl
ockwise.
Fig.l7
-5
-
f.'ig
.18
~
. . . -
·.·
J
13.RELATIVE POSITION OF VIDRATING AND LIFTING PRESSER BAR, ALSO, OF
THE NEEDLE AND THE NEEDLE HOLE OF THE FEEDER (Figs. 18 & 19)
l)
The
distance between the vibrating presser
ecce
ntric
so
th at
there
is no feed movement
(two
needle ) .To adjust by
2)
Normally, relative position
of
Lh
e needle hole
3)
Securely tighten the screws after finished adjustment.
of
the feed
the
screws for connecting crank
of
the feed
dog
. To adjust by the screw for the feed rock shaft be
bar
( 1) and lifting presser
of
the n
eed
le bar, should be 15.5 mm
(3)
dog
against the needle, the needle should be passed through the center
bar
(2)
, after adjusting
(one
needle)
.
ll crank
and
(
4)
U1e
14.
feed
5 mm
~
Fig.l9
Fig.20
1
.3
14.ADJUSTMENT THE HEIGHT OF THE FEED DOG (Figs. 20)
Th
e maximum height
To adjust this height by the screw on
may be
requirc:<d
of
the feed
, and retighten· the screw ( l )
dog
• 0 • • •
from the surface
the
feed lifti
ng
cam fork
of
the
needle plate is normally 1.3 m
of
the feed
bar
and raise
IS.TIMING BETWEEN THE HOOK AND THE NEEDLE (Fig. 21
mm
m.
or lowe
-.
22&23)
r the feed dog, as
Set
the feed
presser
I)
Norma
(I)
(2) Move hook
(3) Then
(4) To check the needle with careful attention free from bent before adjustment.
eccent
ric with the button
bar
should be 15.5 mm.
l clearance between
Loosen two screws (
saddle
without
str
iking it.
sec
urely tighten
hook
4)
and
to
right
two screws.
at
no feeding position, and confirm the length
point
and
scarf
of
the needle is in 0.02 - 0.1 mm. ( Fig.21 ) .
(5)
for h
ooksaddle.
or
left, as may be required, until
. .
2)
If
the needle
needle when the n
bar
and
sewing
eedle
hook
are
cor
rectly timed, the point
raised 3.8 mm + 0.5 mm from the lowest point.For
- 6 -
hook
of
point
the
is
hook
the
between
as close
vibrat
to needle
will
be
at
adjustment
ing and lifting
as
possible
the
center
ofti
ming, loosen
of
the
2 screws ( I ) for hook driving gear, and . tap this gear to the right
or
left in clearance
of
2 mm on the hook
driving shaft until the point
hook timing, and to the left gives later hook timing.Except the above case, to adjust in changing
condition between hook driving gear (
hook dr
3) Height
Normal clearance between top
ivin
g gear after finished adjustment. ( Fig.22)
Fig.21
of
the needle bar ( Fig.
of
the hook is at the center
2)
and hook shaft gear (
23)
of
the eye
of
the needle and hook point is
of
the needle.Tapping to the right gives on earlier
3)
.Securely tighten the 2
Fi
g.22
2.2
mm.
set
screws ( 1 ) for
gea
r
In
case the need le bar is incorrect
needle
bar
in
con·ect position
ly
set, loose the needle bar conn
as
required above, then retighten
ecti
th
e
sc
-
__
Fig. 23
16.ADJUSTMENT OF BOBBIN CASE OPENER (Fig. 24 )
I) Turn the machine pulley unt
2)
In
this position, adjust it so that the clearance between the inside edge
il
the top
\
of
the opener is located
at
the distance
ng
stud pinch scr
rew
(A)
fr.om
of
the opener
ew
(A)
and place the
.
the
neecU
e plate.
(A)
and the top
of
the
hook is abo
3) Securely tighten the screw
ut
0.3 - 0.8 mm.
(B)
after finished adjustment.
-7-
Fig.24 Fig.25
17.ADJUSTMENT OF THE HEIGHT OF THE PRESSER FEET (Figs. 25 , 26 & 27)
Normal distance between the surface
stop lever (C) is 19 mm.
When step on
stopped position.
I)
To change the relative
2)
The
the lifting pedal, the
height
of
lift
of
Lift
of
the presser feet is adj usted by moving the screw
3) Normal distance between presser bar position guide bracket
of
the needle plate ( A) and lifting presser
li
fti
ng
lever (
B)
will at the stopped position ,t
the presser feet, loosen the screw ( 2 )
C3)
and presser
foot
hen
at
the above condition.
of
presser bar lifting bracket.
bar
position
(Fig. 26)
Position of the lifting presser foot to shift in left and right is to be adjusted by the screw (
lifting bracket and the
screw
( 5 )
for
presser bar position guide bracke
t.
at stopped positio n
pull the
stop
guide
2)
lev
er
(4)
for presser
of
U
1e
(C)
at
is 7 mm.
Fig.26 Fig.
18
.TIMING OF THE VIBRATING AND LIFTING PRESSER FEET (Fig. 28)
The
amount
materials being
The
feet should lift
As a rule, the vibrating and lifting presser
of
lift
sew
just enou
of
the vibrating and lifting presser feet should be regul
n.
gh to clear the materials.
fe
el should lift an equa l height, but some grades
-8-
27
ated according to the thi ckness
of
work may
require
that
they
/i
ft
an une
qual
heig
ht.
To change the relative lift
vibrating presser bar upward
of
•
Fig.28
19.ADJUSTMENT
PRE
SSE
R FEET (Fig. 29) (RE-ADJUSTMENT THE TIMING
LIFTING
PRESSER FEET)
OF
the presser feet, loosen the screw (A ) for lifting r
or
downward as required, then securely
tighten the screw
ock
shaft crank and move the
(A)
.
THE CLEARANCE FOR THE VIBRATING AND LIFTING
OF
THE VIBRATING AND
The amount
lifting be
To decrease the movement in setting the stud (
the stud (
(2)
The clearance for the vibrating and lifting presser feet are being adjusted
them should be adjusted according to the materials being sewn.
The timing position for the vibrating and lifti
of
the lift
ll
crank link screw stud ( 1) .
I ) at the l
.
of
the alternati ng feed for the vibrating and lifting presser feet are to be adjusted by the
ower
position. After setting to the required position, s
I )
at
the upp
ng
presser feet shou
er
position, and to increase the
ld
be regulated
,,
mov
ement in setti ng
ecur
ely tighten the stud ( l ) with nut
at
maximum,
by
Fig. 2
so
that
8&29
the clearan
.
ce
of
Fig
.29
-
9-
Fig._30
20.ADJUSTMENT OF THE THREAD CONTROLLER SPRING (Fig. 30)
I) For more controller
lever, and for less
2) To strengthen the action
the stop screw and turn the
the right
and
action on
action·
secu
rely retighten
the
thread, loosen the set screw( 1
set
the
stop
of
the contro ller
spring
the
higher.
stud
spring
spr
ing
(5)
slightly
stud screw.
)at
the right
on the thread, loosen
to
the left with a screwdriver, or light
the
21.REPLACEMENT OF THE CONNECTION BELT (Figs. 31,
I)
when
the
connection belt removed from the pulley for adjusting and
should be replaced by
the
processes,
(1) Turn the machine pulley toward
(2) Turn the hook
and the red
over
the upper and lower pulley.
shaft
point
with the fingers until the arrow mark on the
mark
on the hook driving shaft bushing ( I )
as
followings: (Figs. 31 &
you
so
that plac
ed
the take-up l
or replacing
32)
ever (A)
book
are
directly in line.
of
spring
32,
drivi ng
the
controller
stud
33 &34)
purposes
at
the high
shaft
screw
bushing
Then
and
set
the stop
(
4)
at
the
en
its action turn to
of
the parts,
est
position.
collar
repl
ace
the belt
rear
(2)
of
it
Fig.31
2)
Replacement
( I) Remove
(2) Slide
(3) Remove the machine pulley (
(4) Remove the
(5)
Lift
draw it out through the space n
(6) Replace
(7)
Secmely
ofthe
connection belt when damaged. (Figs. 33 &
the
upper arm plate ( 1 ) and reservoir.
the
connection belt
ann
shaft bushing
the be
lt
up through the
the
connection belt
tighten all the screws,
(A)
offfrom
3)
(2)
ann
cap
ormally occupied by the bushing.
as
opposite processes
so
low
er
and upper belt pulley.
.
hole after removed the arm shaft bushin
as
above for r
as to
fit
the arm shaft, firmly, free fi·om looseness.
-10-
34)
emoving
Fig.32
it.
g(2)
as
far
as
possible
and
1
2 3
'•
'
•
Fig.33 Fig.34
22.TO RE-ENGAGE THE SAFETY CLUTCH (Figs. 35 &
The
hook driving shaft and the shaft
The
safety clutch located in the low
hook
by
releasing the locking lever in the pulley,
Take out jammed thread from the hook.·
I)
2) To re-engage
machine pulley backward slowly by right hand, then the safe
3)
In
the case easily releasing the safety crutch, adjust
removed conn
To increase the pressure in turning the screw ( B) to clockwi
sciew
(B)
th
e clutch, press down the l
ect
ion belt.
to counter-clockwise.
of
the sewing hook are splined
er
belt pulley prevents damage in the
ock stud (A) , n
the pressure by the screw ( B ) for l
ear
ty
se
to
the ba
clutch wi
and to decrease
36)
prevent the bo
eve
nt
of
thread
se
of
the
arm
ll
be released.
oR
t'rorh :igetting
jamming
. . '
:
1:>~
l
eft
ower
the
pres
out
of
time.
in the sewing
band and turn the
belt pulley after
sure
in turning
the
rig.3s
-11-
Fig
.36
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