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PRECAUTION BEFORE STARTING OPERATION

1

 

Safety Precautions

1 .  When turning the power on, keep your hands and fingers away from the area around/

under the needle and the area around the pulley.

2 .  The 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 replacing parts.

4 .  Avoid placing fingers, hairs, obstacles, etc. near the pulley, “V” belt, bobbin winder 

wheel, or motor when the machine is in operation. Injury could result.

5 .  Don’t put fingers into the thread take-up lever cover, around/under the needle, or 

pulley when the machine is in operation.

6 .  If the belt cover, the finger guard, and/or the eye guard are installed, don’t operate 

the machine without these safety devices.

2

 

Precaution before Starting Operation

1 .  If the machine’s oil pan has an oil sump, never operate the machine without filling oil 

in it.

2 .  If the machine is lubricated by a drop oiler, never operate the machine without 

lubricating.

3 .  When a new sewing machine is operated, verify the rotational direction of the pulley 

with the power on.

 

(The pulley should rotate counterclockwise when viewed from the pulley.)

4 .  Verify voltage and (single or three) phase indicated on the nameplate of the motor.

3

 

Precaution for Operating Conditions

1 .  Avoid using the machine at abnormally high temperature (35℃ or higher) or low 

temperature (5℃ or lower). Otherwise, machine failure may result.

2 .  Avoid using the machine in dusty conditions.
3 .  Avoid using the machine in conditions filled with a lot of electric noises such as high-

frequency welders.

INTRODUCTION

 Thank you very much for purchasing Mitsubishi industrial sewing machine.
 Please read this instruction manual before operating the sewing machine. Please read also 

“Safety Manual”, “Instruction manual for Mitsubishi Limiservo X” and operate the sewing 

machine correctly and safely.

Summary of Contents for LS2-1130

Page 1: ...A180E277P03 INSTRUCTION MANUAL HIGH SPEED SINGLE NEEDLE LOCKSTITCH INDUSTRIAL SEWING MACHINE LS2 1130 MODEL ...

Page 2: ...ion 1 If the machine s oil pan has an oil sump never operate the machine without filling oil in it 2 If the machine is lubricated by a drop oiler never operate the machine without lubricating 3 When a new sewing machine is operated verify the rotational direction of the pulley with the power on The pulley should rotate counterclockwise when viewed from the pulley 4 Verify voltage and single or thr...

Page 3: ...n operation 2 HOW TO USE 3 1 Installation of the needle 3 2 Winding of the bobbin thread 3 3 Threading of the needle thread 4 4 Adjustment of feed stitch length and backstitch 4 5 Balance of threads tension 4 6 Adjustment of the needle thread tension 5 7 Adjustment of the bobbin thread tension 5 8 Adjustment of the presser foot pressure 5 9 Adjustment of the timing to open tension disc of the need...

Page 4: ...e rubber plug and replenish a suitable amount of oil as shown in the figure Rubber plug 3 Lubrication condition Check that the oil splashed the oil sight window Oil sight window 4 Adjustment of lubrication to the rotating hook Adjust the lubrication amount of the rotating hook by turning the screw Ⓐ ScrewⒶ Decrease Increase 5 Adjustment of the oil pump For the regular sewing it is not necessary fo...

Page 5: ... that the brake may not work when the power is interrupted or power failure occurs during sewing machine operation 3 Since dust in the control box might cause malfunction or control troubles be sure to keep the control box cover close during operation 4 Do not apply a multimeter to the control circuit for checking otherwise voltage of multimeter might damage semiconductor components in the circuit...

Page 6: ...ormally avoid fitting the needle with the groove facing backward Both needles DP 17 and DB 1 can be used Use the timing marks as shown in the figure 2 Winding of the bobbin thread Note When bobbin thread is wound keep the presser foot lifted Adjustment Tension of wound thread Slack winding is recommended for polyester thread and nylon thread Conically wound thread Move the thread guide toward smal...

Page 7: ...f feed stitch length and backstitch Adjustment of feed stitch length Adjust feed length by turning the feed length setting dial while depressing the reverse sewing lever Backstitch Direction of stitching can be reversed by depressing the reverse sewing lever 5 Balance of threads tension A Balanced tension C Loose the needle thread tension or tight the bobbin thread tension B Tight the needle threa...

Page 8: ... open tension disc of the needle thread tension regulator Adjust timing with the following procedure as timing to open the tension disc can be adjusted for the clearance within the limits of 2 to 7 mm of the presser foot 1 Remove the rubber plug and loosen the screw Ⓐ 2 Move the thread tension releasing cam to the right or the left Positioned to the right quick Positioned to the left slow 3 Tighte...

Page 9: ... 61 3 72 0 Feed dog height mm 0 8 1 0 1 2 Presser foot stroke mm Hand 6 Knee 13 Needle DB 1 14 DB 1 22 Hook vertical rotating hook Standard Standard for heavy Large Lubrication system Automatic lubrication Bed dimensions mm 475 178 Note The bobbin should be of high quality free from deformation Some materials and or sewing conditions may require specifications other than those listed above These s...

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Page 12: ...Printed in Japan ...

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