JUKI DSC-246 User manual

R
No.03
40092226
INSTRUCTION MANUAL
DSC-246 DSC-246-7
DSC-246V DSC-246V-7
NOTE : Read safety instructions carefully and understand them before using.
Retain this Instruction Manual for future reference.
Copyright C2011-2013 JUKI CORPORATION
• All rights reserved throughout the world.
Please do not hesitate to contact our distributors or agents in your area for further information when neces-
sary.
*The description covered in this instruction manual is subject to change for improvement of the
commodity without notice.
13 · 09 Printed in Japan
SEWING MACHINERY BUSINESS UNIT
2-11-1, TSURUMAKI, TAMA-SHI,
TOKYO, 206-8551, JAPAN
PHONE : (81)42-357-2371
FAX : (81)42-357-2380
http://www.juki.com


– 20 –
i
For the sewing machine, automatic machine and ancillary devices (hereinafter collectively referred to as
"machine"), it is inevitable to conduct sewing work near moving parts of the machine. This means that there
is always a possibility of unintentionally coming in contact with the moving parts. Operators who actually
operate the machine and maintenance personnel who are involved in maintenance and repair of the machine
are strongly recommended to carefully read to fully understand the following SAFETY PRECAUTIONS
before using/maintaining the machine. The content of the SAFETY PRECAUTIONS includes items which
are not contained in the speci¿cations of your product.
The risk indications are classi¿ed into the following three different categories to help understand the meaning
of the labels. Be sure to fully understand the following description and strictly observe the instructions.
Warning label
❶
❷
❸
❶TKere iVWKe SRVVibiliW\ WKaWVligKW WR VeriRXV inMXr\Rr GeaWK Pa\be FaXVeG
TKere iVWKe SRVVibiliW\ WKaWinMXr\Pa\be FaXVeGb\WRXFKing PRYing SarW
❷TRSerIRrPVeZing ZRrNZiWK VaIeW\ gXarG
TRSerIRrPVeZing ZRrNZiWK VaIeW\ FRYer
TRSerIRrPVeZing ZRrNZiWK VaIeW\ SrRWeFWiRn GeYiFe
❸%e VXre WR WXrn WKe SRZer OFF beIRre Farr\ing RXW PaFKineKeaGWKreaGing
neeGle FKanging bRbbin FKangingRr Riling anGFleaning
❸
❷
❶
EleFWriFalVKRFN
Ganger label
DANGER :
TKiVinGiFaWiRn iVgiYen ZKere WKere iVan iPPeGiaWe Ganger RI GeaWK Rr VerRXV inMXr\iIWKe SerVRn in FKarge Rr an\WKirG
SarW\ PiVKanGleVWKe PaFKine Rr GReVnRW aYRiGWKe GangerRXV ViWXaWiRn ZKen RSeraWing Rr PainWaining WKe PaFKine
WARNING :
TKiVinGiFaWiRn iVgiYen ZKere WKere iVa SRWenWialiW\ IRr GeaWK Rr VeriRXV inMXr\iIWKe SerVRn in FKarge Rr an\WKirG
SarW\ PiVKanGleVWKe PaFKine Rr GReVnRW aYRiGWKe GangerRXV ViWXaWiRn ZKen RSeraWing Rr PainWaining WKe PaFKine
CAUTION :
TKiVinGiFaWiRn iVgiYen ZKere WKere iVa Ganger RI PeGiXP WR PinRr inMXr\iIWKe SerVRn in FKarge Rr an\WKirGSar
W\ PiVKanGleVWKe PaFKine Rr GReVnRW aYRiGWKe GangerRXV ViWXaWiRn ZKen RSeraWing Rr PainWaining WKe PaFKine
IWePV reTXiring VSeFial aWWenWiRn
PiFWRrial Zarning inGiFaWiRn
TKere iVa riVN RI inMXr\iIFRnWaFW
ing a PRYing VeFWiRn
PiFWRrial Zarning
inGiFaWiRn
%e aZare WKaWKRlGing WKe VeZing
PaFKine GXring RSeraWiRn Fan
KXrW\RXr KanGV
TKere iVa riVN RI eleFWriFal VKRFN iI
FRnWaFWing a KigKYRlWage VeFWiRn
TKere iVa riVN RI enWanglePenWin
WKe belWreVXlWing in inMXr\
TKere iVa riVN RI a bXrn iIFRnWaFW
ing a KigKWePSeraWXre VeFWiRn
TKere iVa riVN RI inMXr\iI\RX
WRXFK WKe bXWWRn Farrier
%e aZare WKaWe\e Ge¿FienF\ Fan
be FaXVeGb\lRRNing GireFWl\aWWKe
laVer beaP
InGiFaWiRn label
TKe FRrreFW GireFWiRn iVinGiFaWeG
TKere iVa riVN RI FRnWaFW beWZeen
\RXr KeaGanGWKe VeZing Pa
FKine
CRnneFWiRn RI a earWK Fable iV
inGiFaWeG
TO ENSURE SAFE USE OF YOUR SEWING MACHINE
I E[SlanaWiRn RI riVN leYelV
(II)
E[SlanaWiRn RI SiFWRrial Zarning inGiFaWiRnVanGZarning labelV

ii
SAFETY PRECAUTIONS
WKen iWiVneFeVVar\WR RSen WKe FRnWrRl bR[ FRnWaining eleFWriFal SarWV be VXre WR WXrn WKe SRZer
RII anGZaiWIRr ¿Ye PinXWeVRr PRre beIRre RSening WKe FRYer in RrGer WR SreYenWaFFiGenWleaGing WR
eleFWriFal VKRFN
AFFiGenWPeanVWR FaXVe
SerVRnal inMXr\Rr GeaWK Rr
GaPage WR SrRSerW\
DANGER
CAUTION
%aViFSreFaXWiRn
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PenWV aWKanGIRr TXiFN reIerenFe
TKe FRnWenWRI WKiVVeFWiRn inFlXGeViWePV ZKiFK are nRW FRnWaineGin WKe VSeFi¿FaWiRnVRI \RXr SrRGXFW
%e VXre WR Zear VaIeW\ gRggleVWR SrRWeFW againVW aFFiGenWFaXVeGb\neeGle breaNage
TKRVe ZKR XVe a KearWSaFer KaYe WR XVe WKe PaFKine aIWer FRnVXlWaWiRn ZiWK a PeGiFal VSeFialiVW
SaIeW\ GeYiFeVanGZarning labelV
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TKiVaSSlieVWR WKe IRllRZing
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ing RSeraWiRnVaIWer WXrning WKe SRZer RII FRr WKe PaFKine inFRrSRraWing a FlXWFK PRWRrin SarWiFXlar
be VXre WR Farr\RXW WKe IRllRZing RSeraWiRnVaIWer WXrning WKe SRZer RII anGYeriI\ing WKaWWKe PaFKine
VWRSV FRPSleWel\
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eG Rr FKanging WKe bRbbin
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%e VXre WR rePRYe WKe SRZer SlXg b\KRlGing WKe SlXg VeFWiRn inVWeaGRI WKe FRrGVeFWiRn in RrGer WR Sre
YenWeleFWriFalVKRFN earWKleaNage Rr ¿re aFFiGenW
%e VXre WR WXrn WKe SRZer RII ZKeneYer WKe PaFKine iVleIW XnaWWenGeGbeWZeen ZRrNV
%e VXre WR WXrn WKe SRZer RII in WKe FaVe RI SRZer IailXre in RrGer WR SreYenWaFFiGenWreVXlWing RI breaN
age RI eleFWriFal FRPSRnenWV
– 19 –
17
(2,000 sti/min)
17
17
17
17
21
13
24
17
21
23
21
29

– 18 –
28. MOTOR PULLEY AND SEWING SPEED(DSC-246,DSC-246V)
1 . Use the 3-phase 400 W AC clutch motor.
2 . Use an M type V belt.
3 . The following table shows the relationship among the motor pulley and the sewing speed.
Model Sewing speed Effective
diameter of
handwheel
Number
of poles
Frequency Rotational
speed of
motor
Effective diameter of
motor pulley
DSC-246
DSC-246V 2,200 sti/min φ76.0 4 50Hz 1430 rpm φ115
60Hz 1715 rpm φ95
(Caution) The effective diameter of the motor pulley is obtained by subtracting 5 mm from the outside diameter.
iii
PRECAUTIONS TO %E TA.EN IN 9ARIOUS OPERATION STAGES
TranVSRrWaWiRn
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breaNage reVXlWing IrRP Xne[SeFWeGaFFiGenWRr GrRSSing
UnSaFNing
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TKe nailVKaYe WR be rePRYeG
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iv
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%e VXre WR YeriI\ WKaWWKe airGriYen GeYiFe VXFK aVan air F\linGer RSeraWeVaWWKe VSeFi¿eGair SreVVXre
beIRre XVing iWin RrGer WR SreYenWaFFiGenWFaXVeGb\PalIXnFWiRn RI WKe PaFKine
TRXVe WKe PaFKine ZiWK VaIeW\ be VXre WR XVe iWXnGer WKe enYirRnPenWZKiFK VaWiV¿eVWKe IRllRZing
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RI ZaWer GrRSleWin RrGer WR SreYenWaFFiGenWFaXVeGb\breaNage Rr PalIXnFWiRn RI WKe eleFWriFal FRPSR
nenWV
%e VXre WR VWRS RSeraWiRn ZKen ligKWning ÀaVKeVIRr WKe VaNe RI VaIeW\ anGrePRYe WKe SRZer SlXg in
RrGer WR SreYenWaFFiGenWFaXVeGb\breaNage Rr PalIXnFWiRn RI WKe eleFWriFal FRPSRnenWV
DeSenGing Rn WKe raGiRZaYe Vignal FRnGiWiRnWKe PaFKine Pa\generaWe nRiVe in WKe T9Rr raGiR IIWKiV
RFFXrV XVe WKe T9Rr raGiRZiWK NeSW Zell aZa\IrRP WKe PaFKine
In RrGer WR enVXre WKe ZRrNenYirRnPenW lRFal laZV anGregXlaWiRnVin WKe FRXnWr\ZKere WKe VeZing
PaFKine iVinVWalleGVKall be IRllRZeG
In WKe FaVe WKe nRiVe FRnWrRl iVneFeVVar\ an ear SrRWeFWRr Rr RWKer SrRWeFWiYe gear VKRXlGbe ZRrn aF
FRrGing WR WKe aSSliFable laZV anGregXlaWiRnV
DiVSRVal RI SrRGXFWV anGSaFNageVanGWreaWPenWRI XVeGlXbriFaWing Ril VKRXlGbe FarrieGRXW SrRSerl\
aFFRrGing WR WKe releYanWlaZV RI WKe FRXnWr\in ZKiFK WKe VeZing PaFKine iVXVeG
– 17 –
(Caution)The parts attached with an asterisk ( * ) are the exclusive parts for the DSC-246-7.

– 16 –
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
27
(Caution)
1.
★mark mean the parts used succeedingly
after replacement.
2. The parts attached with an asterisk
( * ) are the exclusive parts for the
DSC-246-7.
21142302
v
CAUTION :
Note that safety devices such as “eye guard”, “finger guard”, etc. may be omitted from the
illustrations in this Instruction Manual for easy explanation.
When operating the machine, be sure not to remove these safety devices.
FOR SAFE OPERATION
1. For the safety, never operate the sewing machine with the ground wire for the
power supply removed.
2. Be sure to turn OFF the power switch in prior when connecting/disconnecting the
power plug.
3. When thunders occurs, stop the work for the safety and disconnect the power plug.
4. When the sewing machine is suddenly moved from a cold place to a warm place,
there is a case where dew condensation may occur. Turn ON the power after there
is no worry of the drop of water.
5. To prevent fires, periodically draw out the power plug from the plug socket and
clean the root of the pins and the space between pins.
6. The hook rotates at a high speed while the machine is in operation.
To prevent possible injury to hands, be sure to keep your hands away from the
vicinity of the hook during operation. In addition, be sure to turn OFF the power to
the machine when replacing the bobbin.
7. To avoid possible accidents due to abrupt start of the machine, be sure to turn OFF
the power to the machine.
8. Be careful of handling this product so as not to pour water or oil, shock by dropping,
and the like since this product is a precision instrument.
9. When tilting or returning the sewing machine to the home position, hold the upper
side of the machine head with both hands and perform the work quietly so that
fingers or the like are not caught in the machine.
1. To avoid personal injury, never put your fingers under the needle when you turn ON
the power switch or operate the sewing machine.
2. To avoid personal injury, never put your fingers into the thread take-up cover while
the sewing machine is in operation.
3. Turn OFF the power switch when tilting the machine head, or removing the belt
cover or the V belts.
4. To prevent possible personal injury caused by being caught in the machine, keep
your fingers, head and clothes away from the handwheel and the thread take-up
while the sewing machine is in operation. In addition, place nothing around it.
5. To avoid personal injury, never operate the sewing machine with the finger guard
removed.
6. To avoid personal injury, be careful not to allow your fingers in the machine when
tilting the machine head.

vi
BEFORE OPERATION
• Before you put the machine into operation for the first time after the set-up, clean it thoroughly .
Remove all dust gathering during transportation and oil it well.
• Confirm that voltage has been correctly set.
Confirm that the power plug has been properly connected to the power supply.
• Never use the machine in the state where the voltage type is different from the designated one.
• The direction of normal rotation of the machine is counterclockwise as observed from the pulley side.
Take care not to allow the machine to rotate in the reverse direction.
• Never operate the machine unless the machine head and the oil tank have been filled with oil.
• For a test run, remove the bobbin and the needle thread.
•
For the first month, decrease the sewing speed and run the sewing machine at a speed of 2,000 sti/min or less.
• When carrying the machine, do not hold it by the synchronizer located at the rear of the handwheel.
• Operate the handwheel after the machine has totally stopped.
• Observe the standard thread trimming speed, 185 sti/min.
CAUTION :
Check the following so as to prevent maloperation of and damage to the machine.
– 15 –
21142302
(Caution) The parts attached with an asterisk ( * ) are the exclusive parts for the DSC-246-7.

– 14 –
B15242450A0
B163214500G
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
26
(Caution)
1.
★mark mean the parts used succeedingly
after replacement.
2. The parts attached with an asterisk
( * ) are the exclusive parts for the
DSC-246-7.
ENGLISH
DECLARATION OF INCORPORATION OF PARTLY COMPLETED MACHINERY
We hereby declare that the sewing machine (sewing head) described below ;
1. Must not be put into service until the machinery to which it is incorporated has been declared in
conformity with the provisions of the Directive 2006/42/EC, and
2. Conforms to the essential requirements of the Directive 2006/42/EC, described in the technical
documentation, and
3. To be prepared with the above technical documentation compiled in accordance with part B of
Annex VII, and
4. Also to conform to the RoHS Directive 2011/65/EU
5. Relevant information on which should be transmitted in response to a reasoned request by the
national authorities, by the electronic method or other according to the request.
Applied harmonized standards, in particular :
EN ISO12100, EN ISO10821, EN 50581
Manufacturer :
JUKI CORPORATION
2-11-1, Tsurumaki, Tama-shi, Tokyo, Japan
Model
Description Industrial Sewing Machine
Function make stitches and sew
DSC-240 Series
vii

viii
CONTENTS
SPECIFICATIONS ..............................................................................................................1
1. SETTING UP THE SEWING MACHINE.......................................................................2
2. INSTALLING THE THREAD STAND ...........................................................................2
3. INSTALLING THE BELT COVER AND THE BOBBIN WINDER.................................3
4. LUBRICATOIN .............................................................................................................3
5. ATTACHING THE NEEDLE .........................................................................................4
6. WINDING A BOBBIN ...................................................................................................5
7. THREADING THE BOBBIN CASE..............................................................................5
8. INSTALLING THE TAKE-UP THREAD GUIDE ROD ..................................................5
9. THREAD THE MACHINE HEAD..................................................................................6
10. ADJUSTING THE STITCH LENGTH ...........................................................................6
11. FORWARD/REVERSE SEAM RATIO..........................................................................6
12. THREAD TENSION......................................................................................................7
13. THREAD TAKE-UP SPRING .......................................................................................7
14. PRESSURES OF THE PRESSER FOOT AND WALKING FOOT ..............................7
15. HEIGHT OF THE FEED DOG (DSC-246, DSC-246-7) ................................................8
16. ADJUSTING THE WALKING FOOT AND THE PRESSER FOOT..............................9
17. NEEDLE-TO-HOOK RELATIONSHIP........................................................................10
18. AUXILIARY THREAD TENSION CONTROLLER (DSC-246-7, DSC-246V-7) .......... 11
19.
ADJUSTING THE PRESSURE OF THE FIXED KNIFE (DSC-246-7, DSC-246V-7)
.... 11
20. ONE-TOUCH TYPE REVERSE FEED STITCHING MECHANISM
(DSC-246-7, DSC-246V-7) ......................................................................................... 11
21. ADJUSTING THE THREAD TRIMMING CAM (DSC-246-7, DSC-246V-7)...............12
22. ADJUSTING THE CAM ROLLER ARM AND CAM ROLLER ARM PRESSER
(DSC-246-7, DSC-246V-7) .........................................................................................12
23. ADJUSTING MAX MOVING STROKE OF THE ROTARY KNIFE
(DSC-246-7, DSC-246V-7) .........................................................................................12
24. ADJUSTING THE OPERATING STROKE OF THE PICKER
(DSC-246-7, DSC-246V-7) .........................................................................................13
25. HOW TO REPLACE THE KNIVES (DSC-246-7, DSC-246V-7).................................13
26. HOW TO CHANGE FROM ELLIPTICAL FEED TO HORIZONTAL FEED................14
27. HOW TO CHANGE FROM HORIZONTAL FEED TO ELLIPTICAL FEED................16
28. MOTOR PULLEY AND SEWING SPEED (DSC-246, DSC-246V) ............................18
29. TROUBLES AND CORRECTIVE MEASURES .........................................................19
– 13 –
11
19
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
(DSC-246-7, DSC-246V-7)
24
(DSC-246-7, DSC-246V-7)
25

– 12 –
(DSC-246-7, DSC-246V-7)
(DSC-246-7, DSC-246V-7)
(DSC-246-7, DSC-246V-7)
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
21
22
23
– 1 –
Model DSC-246 DSC-246-7 DSC-246V DSC246V-7
Type of sewing
machine head
Cylinder-bed, 1-needle,
unison-feed lockstitch
machine
Cylinder-bed, 1-needle,
unison-feed lockstitch
machine with an
automatic thread trimmer
Cylinder-bed, 1-needle,
unison-feed lockstitch
machine (horizontal
drop feed)
Cylinder-bed, 1-needle,
unison-feed lockstitch
machine with an
automatic thread trimmer
(horizontal drop feed)
Usage Suited for sewing medium-to heavy weight materials
Sewing speed Max. 2,200 sti/min
Stitch length 0 to 6 mm
Lift of presser
foot
Hand lifter 9 mm
Knee lifter 15 mm
Hand lifter 8 mm
Knee lifter 14 mm
Hand lifter 9 mm
Knee lifter 15 mm
Hand lifter 8 mm
Knee lifter 14 mm
Thread take-
up lever
Slide type thread take-up
Needle bar
stroke
38 mm
Needle to be
used
GROZ-BECKERT 135×17 Nm90 to Nm160 (Standard Nm130)
Needle system #50 to #8
Stitch adjusting
method
Dial
Lubrication
method
By an oiler and an oil wick centralized in face plate
Motor to be
used
400W Electro-stop
motor (4P)
AC servo motor 400W Electro-stop
motor (4P)
AC servo motor
Oil to be used New Defrix Oil No.1
Noise - Equivalent
continuous emission
sound pressure
level (LpA) at the
workstation :
A-weighted value of
84.5 dB; (Includes
KpA = 2.5 dB);
according to ISO
10821- C.6.2 -ISO
11204 GR2 at 2,200
sti/min.
- Sound power level
(LWA) ;
A-weighted value of
92.5 dB; (Includes
KWA = 2.5 dB);
according to ISO
10821- C.6.2 -ISO
3744 GR2 at 2,200
sti/min.
- Equivalent
continuous emission
sound pressure
level (LpA) at the
workstation :
A-weighted value of
81.0 dB; (Includes
KpA = 2.5 dB);
according to ISO
10821- C.6.2 -ISO
11204 GR2 at 2,200
sti/min.
- Sound power level
(LWA) ;
A-weighted value of
88.5 dB; (Includes
KWA = 2.5 dB);
according to ISO
10821- C.6.2 -ISO
3744 GR2 at 2,200
sti/min.
- Equivalent
continuous emission
sound pressure
level (LpA) at the
workstation :
A-weighted value of
77.5 dB; (Includes
KpA = 2.5 dB);
according to ISO
10821- C.6.2 -ISO
11204 GR2 at 2,200
sti/min.
- Equivalent
continuous emission
sound pressure
level (LpA) at the
workstation :
A-weighted value of
81.0 dB; (Includes
KpA = 2.5 dB);
according to ISO
10821- C.6.2 -ISO
11204 GR2 at 2,200
sti/min.
- Sound power level
(LWA) ;
A-weighted value of
88.5 dB; (Includes
KWA = 2.5 dB);
according to ISO
10821- C.6.2 -ISO
3744 GR2 at 2,200
sti/min.

– 2 –
1. Mounting position of the knee lifter
(Caution) The knee lifter should be mounted before the moter
is installed.
2. Carry the sewing machine with two persons.
(Caution) Do not hold the handwheel.
3. Do not put protruding articles such as the screwdriver and the
like at the location where the sewing machine is placed.
4. Setting the sewing machine
Holding countersunk screw 1, washer 2and nut 3supplied
with the unit, fix the sewing machine on the table with aligned
with rubber packing 4at four locations.
5. Securely attach head support rod to the table until it goes no
further.
1
4
2
3
4
– 11 –
(DSC-246-7, DSC-246V-7)
(DSC-246-7, DSC-246V-7)
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
18
19
(DSC-246-7, DSC-246V-7)
20

– 10 –
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
17
– 3 –
4
(Caution) Lubrication to section A: For the DSC-246V/-7, pull
bed top face cover 1toward you, then lubricate
section A.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
(DSC-246-7、DSC-246V-7)
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.

– 4 –
5
The standard needle is GROZ-BECKERT 135 x 17 Nm130.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
– 9 –
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
16

– 8 –
(DSC-246, DSC-246-7)
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
15
– 5 –
6
7
8

– 6 –
[ For the DSC-246-7, DSC-246V-7 ]
Thread the machine head in the order of 1through to !5.
(Caution) For section
!2, pass the thread on the left side of
the needle.
[ For the DSC-246, DSC-246V ]
Thread the machine head in the order of 1through to !2.
10
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
9
11
– 7 –
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
12
13
14

– 6 –
[ For the DSC-246-7, DSC-246V-7 ]
Thread the machine head in the order of 1through to !5.
(Caution) For section
!2, pass the thread on the left side of
the needle.
[ For the DSC-246, DSC-246V ]
Thread the machine head in the order of 1through to !2.
10
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
9
11
– 7 –
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
12
13
14

– 8 –
(DSC-246, DSC-246-7)
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
15
– 5 –
6
7
8

– 4 –
5
The standard needle is GROZ-BECKERT 135 x 17 Nm130.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
– 9 –
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
16

– 10 –
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
17
– 3 –
4
(Caution) Lubrication to section A: For the DSC-246V/-7, pull
bed top face cover 1toward you, then lubricate
section A.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
(DSC-246-7、DSC-246V-7)
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work
after turning the power off and ascertaining that the motor is at rest.
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