Mitsubishi Electric PLK-G2010R User manual

INDUSTRIAL SEWING MACHINE
MODEL
PLK-G2010R
TECHNICAL MANUAL
SEWING MACHINE HEAD
A180E614P02

FOR SAFE USE
Before the installation, operation, and inspection for this product, read the “FOR SAFE USE” and the
technical manuals carefully. Also read the other technical manuals, “Control Unit” and “Operation Panel”
describing some instructions, which are not in this manual, and use the sewing machine properly.
SAFETY INDICATIONS
DANGER
Indicates that incorrect handling may cause hazardous conditions, resulting
in death or severe injury.
CAUTION
Indicates that incorrect handling may cause hazardous conditions, resulting
in medium or slight personal injury or physical damage. Note that CAUTION
level may lead to a serious consequence according to the circumstances.
Always follow the instructions of both levels because they are important to
personal safety.
CAUTION INDICATIONS
No. Caution indication Description
1
Precaution for sewing machine operation:
Indicates that removing the safety and operating
the sewing
machine for some other purposes with power-on are prohibited.
Please do not operate the sewing machine without
protective equipment such as a needle guard, an eye guard,
a belt cover or the others.
Please turn off the power switch when threading, changing
a needle and a bobbin, cleaning, and lubricating.
2
Caution for fingers injury:
Indicates a possibility of fingers (hands) injury in a certain
condition.
3
Caution for squeezing fingers:
Indicates a possibility of squeezing fingers in a certain condition.
4
Indication of pulley rotation direction:
Indicates a normal pulley rotation direction of sewing machine.
(For sewing machine with pulley)
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SAFETY PRECAUTIONS
DANGER
To prevent from receiving an electric shock, always turn off a power switch and unplug power supply
when opening a control box, and then open after ten minutes passes.
CAUTION
USAGE ENVIRONMENT
Please do not operate the sewing machine under the following conditions.
(1) In the ambient temperature of 35 degrees (95°F) or more than 35 degrees, or the ambient
temperature of 5 degrees or less than 5 degrees (41°F).
(2) In the ambient temperature of 55 degrees (131°F) or more than 55 degrees, or the ambient
temperature of -10 degrees or less than -10 degrees (18°F) during transportation.
(3) In the relative humidity exceeding 85% or less than 45%.
(4) In the open-air place or the location that receives direct sunlight.
(5) In the place near heat sources such as heating devices.
(6) In the atmosphere filled with dust, explosive gas, or corrosive gas.
(7) In the place where the fluctuati
on in the power voltage of 10% or more than 10%, or the power
voltage of -10% or less than -10% of the fixed power voltage.
(8) In the place where the power source cannot supply enough voltage to keep the motor running.
(9) In the place filled with strong electric noises such as high-frequency welders.
INSTALLATION
(1)
Please have some specialists, who have enough experience for the sewing machine installations,
install the sewing machine.
(2) Please have a qualified electrician perform necessary electric wiring.
(3) Please
do not operate until the sewing machine is repaired when any damage or fault is found on
the sewing machine at the installation.
(4) Please do not refurbish the sewing machine.
(5) The sewing machine is heavy. For the safety, please make sure to install the sewing machine head
by more than one person.
(6)
When tilting the sewing machine, please stand at the hinge side and hold the sewing machine with
both hands.Also, please lock the caster on the steel stand
(7) When tilting the sewing machine, the work clamp slides toward the hinges. Remember to move the
work clamps fully to the right side of the casting before placing the sewing head in the sewing
position.
(8)
Please lock the caster on the steel stand to prevent the machine from moving before tilting the
sewing machine.
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

(
9) Please make sure to fit the safety protective equipment (the motor cover or the others) and the
accessory protective equipment (the eye guard) that removed temporarily for installation.
(10) If the table and the steel stand are not MITSUBISHI original, the table and the steel stand have to
be strong enough to withstand the weight and vibration of the sewing machine.
(11) When fitting the caster to the steel stand that are not MITSUBISHI original, the caster with locking
function has to be strong enough to withstand the weight and vibration of the sewing machine.
SEWING
(1) Please make sure to turn the power switch off before installing or replacing needles.
(2) Please pay attention for the fingers not to be injured by the needle point.
(3) Please make sure to turn power switch off before lubricating.
(4) Please pay attention that oil does not get on your skin or in your eyes as it
may cause an
inflammation.
(5) Please make sure to keep oil out of the reach of children who may drink oil by mistake.
(6) Please make sure to turn the power switch off before threading a needle.
(7) Before starting the sewing, please make sure the position and the function of the halt switch.
(8) Please do not touch the operating parts during sewing operation.
(9) It is very dangerous to operate the sewing machine without safety guards (eye guards, belt covers,
link covers, finger guards or the others).
Please make sure to operate the sewing machine with safety guards.
(10) Please make sure to turn the power switch off when stopping the sewing machine temporarily.
ADJUSTMENT
(1) Please make sure to turn the power switch off before adjusting the sewing machine.
(2) If the adjustment is required while the power switch on, do not step on the foot switch by mistake.
(3) Please be careful not to be injured by a sharp part such as the needle and the shuttle hook point.
(4) Please make sure to put the safety guards (eye guards, belt guards, link covers, and finger guards
or the others) back on the initial position after the sewing machine adjustment.
(5) Please make sure to lock the caster on the table when tilting the sewing machine.
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

CONTENTS
1. STRUCTURE OF THE SEWING MACHINE···································· 1
2. SPECIFICATION······································································· 2
3. INSTALLATION········································································ 3
3-1. Preparation of the table
··········································································
3-2. Preparation of the steel stand··································································
3-3. Installation of the control box···································································
3-4. Installation of the operation panel·····························································
3-5. Installation of the power switch and foot switch············································
3-6. Installation of the oil pan·········································································
3-7. Installation of the machine head·······························································
3-8. Installation of the stays···········································································
3-9. Installation of the tilting detect switch·························································
3-10. Installation of the eye guard··································································
3-11. Connection of the electric cables····························································
3-12. Installation of the thread stand·······························································
3-13. Connection of the air tube ····································································
3-14. Installation of the spindle motor······························································
3
4
4
4
4
5
5
6
7
7
8
9
9
10
4. LUBRICATION········································································· 11
5. PROPER OPERATION······························································ 11
5-1. Initial setting of the control box
·································································
5-2. Installation of the needle·········································································
5-3. Threading the upper thread·····································································
5-4. Winding the bobbin thread······································································
5-5. Setting the bobbin·················································································
5-6. Setting the bobbin case··········································································
11
12
12
13
14
14
6. SEWING················································································· 15
6-1. The sewing operation
············································································
6-2. Operation of the halt switch·····································································
6-3. Adjustment of the thread tension······························································
15
16
16
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

7. STANDARD ADJUSTMENT························································ 17
7-1. Adjustment of the needle bar position······················································
7-2. Adjustment of the position between the needle and the shuttle hook··············
7-3. Adjustment of the hook positioner's position ·············································
7-4. Adjustment of the lubrication for the rotating hook······································
7-5. Adjustment of the presser foot timing·······················································
7-6. Adjustment of the presser foot lift····························································
7-7. Adjustment of the presser foot height position···········································
7-8. Adjustment of the presser foot position····················································
7-9. Adjustment of the presser foot walk during the sewing································
7-10. Adjustment of the presser foot spring pressure········································
7-11. Adjustment of the wiper·······································································
7-12. Adjustment of the work holder pressure ·················································
7-13. Changing the work holder···································································
7-14. Adjustment of the thread trimmer··························································
7-14-1. Structure of the thread trimmer mechanism·······································
7-14-2. Assembling and readjustment of the thread trimmer mechanism············
7-14-2.1Attaching the knife bracket and the knife mounting unit···················
7-14-2.2 Mutual relation among the movable and stationary knife edge··········
7-14-2.3 Connection of the knife bracket and the driving crank·····················
7-14-2.4Adjustment of the component parts of the knife driving mechanism·····
7-14-2.5Adjustment of the mounting position of the air cylinder····················
7-14-2.6Adjustment of the mounting position of the thread trimmer cam·········
7-14-2.7 Adjustment of the knife engagement············································
7-15. Adjustment of the thread take up spring··················································
7-16. Adjustment of the thread tail after the trimming········································
7-17. Adjustment of the upper thread tension release (the width between thread
tension discs) ···················································································
7-18. Adjustment of opening time of the upper thread tension release disks···········
7-19. Adjustment of the X-Y mechanical home position·····································
7-19-1. Adjustment of the X direction··························································
7-19-2. Adjustment of the Y direction··························································
7-20. The X-Y drive timing belt tension···························································
17
18
19
20
21
22
23
23
24
24
25
25
26
27
27
27
27
28
29
29
30
30
32
33
34
34
34
35
35
36
36
8. MAINTENANCE······································································· 37
8-1. Cleaning
·····························································································
8-2. Disposing of oil waste············································································
37
37
9. TROUBLESHOOTING······························································· 38
APPENDIX················································································· 40
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

1. STRUCTURE OF THE SEWING MACHINE
PLK-G2010R electronic pattern sewing machine consists of the following main parts.
<1>: Sewing machine head <2>: Main shaft motor <3>: Halt switch <4>: Control box
<5>: Operation panel <6>: Work holder foot switch <7>: Start foot switch <8>:Gas spring
<9>: Steel stand <10>: Thread stand <11>: Work holder pedal (Option)
<1>
<2>
<4>
<5>
<7>
<9>
<8>
<10>
<6>
<11>
<3>
- 1 -
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

2. SPECIFICATIONS
Sewing area : X-direction (left/right) 200 mm, Y-direction (front / back) 100 mm
Maximum sewing speed
*1
: 2,800 rpm
Setting speed : 10 speed levels in 200 rpm to 2,800 rpm
Stitch length : 0.1 to 20.0 mm
Stitch type : Single needle lock stitch
Maximum number of needles : 20,000 per pattern
Storable sewing data item : 900 patterns (internal memory)
Data memory : Internal memory, USB memory
Needle bar stroke : 40.0 mm
Thread take up lever stroke : 72.7 mm
Class of needle : DPX17#18 (at standard installation)
Wiper system : Back to front wiping system
Presser foot lift
*2
: 15 mm (12 mm as factory default setting)
Presser foot stroke
*3
: In 4 mm to 10 mm (4 mm as factory default setting)
Work holder lift : 30 mm
Hook : Large size rotating hook
Bobbin case : With non racing spring
Bobbin : Large size steel bobbin
Thread trimmer system : Arc engagement with fixed knife and movable knife
Lubrication system : Replenishment with the oil braids from the oil tanks
Lubrication oil : Pulley SF oil
X-Y drive system : Stepping motor feedback control
Timing belt drive system
Machine dimensions : 1,200 mm (W) ×930 mm (L) ×1,230 mm (H)
Weight : Total 147 Kg
Type of motor : XL-K756-20
Type of controller : PLK-G-CU-20
Type of operation panel : PLK-G-PAL
Power : In 200V to 240V single-phrase or three-phrase
The power in 110V to 120V or in 380V to 415V is compatible with
power unit (option).
*1：Sewing speed may be limited by the operation or sewing condition.
Maximum sewing speed of factory default setting is set at 2,300rpm.
*2：Presser foot lift is the height of the presser foot after the sewing has stopped.
*3：Presser foot stroke is the up and down movement of the presser foot while sewing.
- 2 -
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3. INSTALLATION
CAUTION
(1)
Please have some specialists, who have enough experience for the sewing machine installations,
install the sewing machine.
(2) Please have a qualified electrician perform necessary electric wiring.
(3)
Please do not operate until the sewing machine is repaired when any damage or fault is found on the
sewing machine at the installation.
(4) Please do not refurbish the sewing machine.
(5) If the tab
le and the steel stand are not MITSUBISHI original, the table and the steel stand have to be
strong enough to withstand the weight and vibration of the sewing machine.
(6) When fitting the caster to the steel stand that are not MITSUBISHI original, the caster with locking
function has to be strong enough to withstand the weight and vibration of the sewing machine.
3-1. Preparation of the table
(1) If the table is not MITSUBISHI original, the thickness of the table is required to have 40mm and that is
strong enough to withstand the weight and vibration of the sewing machine.
(2) Manufacture the table as shown on the figure below.
- 3 -
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3-2. Preparation of the steel stand
(1) If the steel stand is not MITSUBISHI original, please refer
to the dimensions shown on the figure at the right.
(2) When fitting the caster to the steel stand, the steel stand
has to be strong enough to withstand the weight and vibration
of the sewing machine.
(3) If the steel stand is MITSUBISHI PLK-G2516R original,
assemble the steel stand with the assembling instructions
enclosed in the packing.
3-3. Installation of the control box
Install the control box with the instructions in the paragraph “[3] Installation” in the CONTROL UNIT
technical manual.
* For connector location see page 7, Section 3-10 of this catalog.
3-4. Installation of the operation panel
Connect the operation panel PLK-G-PAL with the CON Aon the rear of the control box.
* See page 7 for the location.
3-5. Installation of the power switch and foot switch
(1) Mount the power switch (No.1) with the wood screw (No.2) at the position as shown on the figure.
(2) Hook up the connector (No.3) of the power switch to the control box CON B.
(3) Attach the power plug (No.5) to the incoming electrical cable (No.4).
(4) Fix the electric cables with the staples (No.6) to prevent the cables from hanging down.
(5) Hook up the connector (No.8) of the foot switch (No.7) to the control box CON H.
(6) As for the control box connector, refer to the instructions in the paragraph “3-10.Connection of the
electric cables” in this manual.
[Notice] Power plug (No.5) is not included in accessory box.
<1>: Power switch
<2>: Wood screw
<3>: Power switch connector
<4>: Electrical cable
<5>: Power plug
<6>: Staple (six staples)
<7>: Foot switch
<8>: Foot switch connector
<1>
<2>
<3>
<6>
<8>
<5>
<7>
<4>
- 4 -
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3-6. Installation of the oil pan
(1) Remove the oil pan A (No.1) from the accessory box then, set the oil bottle (No.2) to the oil pan A
(No.1).
(2) Put the oil pan at the position shown on the figure then, fix the oil pan with staples (No.3).
(3) Set the damper cushions (No.4) to the table.
3-7. Installation of the machine head
CAUTION
(1) The sewing machine is heavy. For the safety, please make sure to install the sewing machine head by
more than one person.
(2)
When tilting the sewing machine, please stand at the hinge side and hold the sewing machine with
both hands.Also, please lock the caster on the steel stand.
(3) When tilting the sewing machine, the work clamp slides toward the hinges. Remember to move the
work clamps fully to the right side of the casting before placing the sewing head in the sewing
position.
(1) Put the machine head carefully on the damper cushion.
(2) Insert the hinge shafts (No.1) into the hole on the machine then, fix it to the machine with set screws
(No.2).
(3) Fit the hinge rubbers (No.4) and the support plates (No.5) into the holes of the hinges (No.3) then, set
the hinges to the hinge shafts.
(4) Fit the screw holes of the hinges (No.3) to the bolt setting holes then, fix the machine with the socket
bolts (No.6) and the flat washers (No.7).
(5) Fix the head rest (No.8) with safety socket bolts (No.9).
<1>: Oil pan
<2>: Oil bottle
<3>: Staple (four staples)
<4>: Damper cushion
(six cushions)
<3> <1>
<2>
<4>
Upside
<4>
- 5 -
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3-8. Installation of the stays
(1) Remove the bracket (No.3) after installing the machine head.
(2) Fix the stay (right) (No.1) with the socket bolts (No.4), the flat washers (No.5), and the screws (No.6).
(3) Attach the stay (left) (No.2) to the other side by the same procedure.
<1>: Hinge shaft (two shafts)
<2>: Set screw (two screws)
<3>: Hinge (two hinges)
<4>: Hinge rubber (two rubbers)
<5>: Support plate (two plates)
<6>: Socket bolt (four bolts)
<7>: Flat washer (four washers)
<8>: Head rest
<9>: Safety socket bolt (four bolts)
<3>
<5>
<7>
<6>
<1>
<2>
<8>
<9>
<4>
<1>: Stay (right)
<2>: Stay (left)
<3>: Bracket
<4>: Socket bolt (two bolts)
<5>: Flat washer (2 washers)
<6>: Screw (3 screws)
<1>
<5>
<4>
<6>
<3>
<2>
- 6 -
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3-9. Installation of the tilting detect switch
(1) Install the switch unit (No.1) with the SW-MW screws (No.2) so that the switch turns on when the
machine head in initial position is pushed by the machine table.
NOTE The switch unit (No.1) is temporarily fixed at the
back side of the sewing machine bed. Fix it to the
proper place as shown on the right figure.
[Notice] If the switch is not turned on, error [M-038] will occur.
3-10. Installation of the eye guard
(1) Loosen the SW-MW screws (No.2) on the eye guard unit (No.1) then, mount the SW-PW screws
(No.3) to the flat place of the sewing machine with the open guard.
(2) Return the open guard to the initial position then, tighten the SW-MW screws (No.2).
<1>
<2>
<3>
<1>: Eye guard unit
<2>: SW-MW screw
<3>: SW-PW screw (two screws)
Snap!
<1>
<2>
<1>: Switch unit
<2>: SW-MW screw (two screws)
- 7 -
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3-11. Connection of the electric cables
CAUTION
(1) Please make sure to ground the place where there is a mark. Failure to do so may cause electric
shock and/or malfunction.
(1) Connect the machine head and the control box with cables as shown on the figure.
(2) Hold the dangling cables under the table with accessory tie holders (MB60A0420) and cord ties
(MB60A0201). At this time, please check whether the cables are not pulled when tilting the sewing
machine. There are wood screw prepared holes for the tie holders (MB60A0420) on the rear surface
of the table.
<1>: Solenoid cable
<2>: Solenoid power cable
<3>: Spindle encoder cable
<4>: Spindle motor cable
<5>: X-Y spindle encoder
cable
<6>: X-Y spindle motor cable
<7>: P-F spindle motor cable
<7>
<1>
<3>
<6>
<5>
<4>
<2>
XY
CON A
CON E
CON F
CON G
CON H
CON J
CON B
CON C
CON D
CON K
CON A: Operation panel
CON B: Power supply
CON C: Various solenoid DC power
CON D: Spindle motor
CON E: Various solenoid
CON F: Spindle encoder
CON G: X-Y spindle encoder
CON H: Foot switch
CON J: X-Y spindle stepping motor
CON K: P-F spindle stepping motor
- 8 -
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3-12. Installation of the thread stand
(1) Assemble the parts (No.1 to No.11) of the thread stand as shown on the figure.
(2) Fit the thread stand into the hole at the far right on the table stand with the nut (No.13) and the
washers (No.12).
3-13. Connection of the air tube
(1) Remove the stepping motor cover.
(2) Attach the air presser regulator assembly (No.1) underneath the table with the wood screws (No.2).
The prepared holes are provided for the wood screws on the rear surface of the table.
(3) Cut the part of sizeφ8 air tube (No.3) enclosed in the accessory box into about 1 meter length then,
insert one end of this air tube into the manifold air fitting (No.5). The manifold is jointed with the
magnet valves (No.4) and located at the left side surface of the sewing machine head.
Beside, pass the other end of the air tube (No.3) through the cut out hole of the table top then, insert it
into the air outlet fitting (No.6) of the cut out hole of the table top then, insert it into the air outlet fitting
(No.6) of the air presser regulator (No.1).
(4) Insert the one end of the resting air tube (No.3) into the intake air fitting (No.7) of the air coupling to be
adopted with the air supply source provided in your factory.
One of the air couplings is enclosed in the accessory box.
<1>
<12>
<3>
<4>
<6>
<7>
<8>
<9>
<2>
<10>
<11>
<5>
<13>
<1>: Upper column pipe
<2>: Lower column pipe
<3>: Spool stand base (two stand bases)
<4>: Spool mat (two mats)
<5>: Spool holder (two holders)
<6>: Spool shaft (two shafts)
<7>: Spring washer (two washers)
<8>: Nut (four nuts)
<9>: Thread hunger
<10>: Spool holder
<11>: Column joint
<12>: Washer
<13>: Nut
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3-14. Installation of the spindle motor
(1) If the spindle motor (No.1) has been removed from the machine for the adjustment or the like, fix the
spindle motor as the procedure described below.
(2) Set the pin (No.3) position of the bushing to the motor mark (No.2).
(3) Adjust the clearance between the motor and the coupling (No.4). Use the part measuring 7mm on the
gauge (No.5). Position Bolt “A” (No.6) in the UP position when reinstalling the coupling to the machine
top shaft. Make sure the clearance of the coupling is from 2.0 to 3.2mm.
(4) Turn the pulley (No.8) in the direction of the arrow then, slip the gauge (No.5) in between the needle
bar and the needle plate. Use the part of R side (52.6mm) on the gauge.
(5) Be careful not to make the motor turn and fit the coupling to the upper shaft, and then tighten the bolt
A (No.6) first and the bolt B (No.7) second.
<1>: Spindle motor <2>: Motor mark <3>: Pin <4>: Coupling <5>: Gauge
<6>: Bolt A <7>: Bolt B <8>:Pulley
<1>: Air presser regulator unit
<2>: wood screw (two screws)
<3>: Air tube (sizeφ8)
<4>: Manifold (with magnet valves)
<5>: Manifold air fitting
<6>: Air outlet fitting
<7>: Intake air fitting
2.0
～
3.2mm
<1>
<5>
<3>
<2>
<4>
<7>
<6>
<5>
52.6mm
7mm
<8>
<2>
<6>
<3>
<1>
<7>
<4>
<5>
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4. LUBRICATION
CAUTION
(1) Please make sure to turn power switch off before lubricating.
(2) Please pay attention that oil does not get on your skin or in your eyes as it may cause an inflammation.
(3) Please make sure to keep oil out of the reach of children who may drink oil by mistake.
[Notice] Please make sure to lubricate when operating for the first time after the installation. Also, please
make sure to check the amount of oil when the machine has not been used for a long time.
(1) The oil tanks are set at three places of the machine. Pour oil through the oil holes of (No.1 to No.3) to
the oil tanks.
(2) The oil tank No.1 and No.2 have level marks (at the center of the tank). Running out the oil may cause
the machine to make abnormal noise and seize up. When the amount of oil decreases to one-third or
less than one-third, make sure to fill the tank with oil. Also, do not pour oil more than the level marks.
When tilting the machine head, it may cause oil leak.
(3) The oil tank No.3 shows the oil amount by the tip of the indicator. The appropriate oil amount is
between level marks (high and low red lines).
5. PROPER OPERATION
5-1. Initial setting of the control box
When using the sewing machine for the first time, the model and the language of the sewing machine in
use have to be set.
Refer to the instructions in the paragraph “[6] Initial Setting of System (Model/language Setting)” in the
CONTROL UNIT technical manual.
<2>
<1>
<3>
Level mark
Indicator Level mark
- 11 -
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5-2. Installation of the needle
CAUTION
(1) Please make sure to turn the power switch off before installing or replacing needles.
(2) Please pay attention for the fingers not to be injured by the needle point.
(1) Loosen the set screw (No.1) then, insert a new needle (No.2) until the needle head is reached the end
of the hole of the needle bar (No.3).
(2) Tighten the set screw (No.1) with facing the needle groove (No.4) to the front.
5-3. Threading the upper thread
CAUTION
(1) Please turn the power switch off when threading a needle.
Thread the upper thread as shown on the figure.
<3>
<1>
<2>
<4>
<1>: Set screw
<2>: Needle
<3>: Needle bar
<4>: Needle groove
- 12 -
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5-4. Winding the bobbin thread
CAUTION
(1) Please do not touch the rotating part during wind
ing thread. Doing so may cause injury and/or the
machine failure.
[Notice] Please make sure to pull the upper thread out of the needle before winding the bobbin thread.
(1) Route the thread as shown in the below figure then, wind the thread to the bobbin (No.1) in the
direction of “a” arrow several times. Then fit the bobbin to the bobbin winder (No.2) and push in the
bobbin presser arm (No.3).
(2) With the machine in the Bobbin Wind Mode, step on the work holder foot switch first and then the start
switch second so that the thread continues winding to the bobbin while the start switch is stepped on.
(3) When the bobbin finishes winding a certain amount (80 to 90 % of the outside diameter of bobbin) of
thread, the bobbin presser arm is returned to the initial position. Adjust the amount of the winding
thread with the subsidiary arm (No.4).
(4) To wind the bobbin thread during the sewing operation, carry out the procedure (1) above then, the
bobbin winding is performed automatically.
For the bobbin winding mode, refer to the instructions in the paragraph “[3] Explanations of basic
screen, icons and operation “5. The Bobbin Winding screen” is explained below” in the
OPERATION PANEL technical manual.
<1>: Bobbin <2>: Bobbin winder <3>: Bobbin presser arm <4>: Subsidiary arm
a
<1>
<2>
<3>
<4>
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5-5. Setting the bobbin
1) Set the bobbin (No.2) into the bobbin case (No.1).
2) Pull the bobbin thread (No.3) into the slit (No,4) and pass the through the thread hole (No.5).
At this time, pull the bobbin thread (No.3) then, check with the bobbin (No.2) if it is rotated to the arrow
direction. If it is not, set the bobbin (No.2) into the bobbin case (No.1) over again to get the proper
rotation.
5-6. Setting the bobbin case
(1) Pull the bobbin thread about 50mm out of the thread hole of the bobbin case (No.4).
(2) Open the cylinder cover (No.1).
(3) Open the bobbin case latch (No.2) and hold it then, fit it securely in the shuttle hook (No.3).
<1>: Bobbin case
<2>: Bobbin
<3>: Thread
<4>: Bobbin case slit
<5>: Bobbin case thread hole
<1>: Cylinder cover
<2>: Bobbin case latch
<3>: Inner hook
<4>: Bobbin case
<4>
<2>
<3>
<5>
<1>
<2>
<1>
50mm
<3>
<4>
- 14 -
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com