Mitsubishi LU2-4410 Instruction Manual Download Page 1 | Manualshive

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Summary of Contents for LU2-4410

Page 1: ...30 Classes Single Needle Double Needle Lockstitch Compound Feed Automatic undertrimmer Variable speed control Thank you for choosing Mitsubishi Industrial Sewing Machine Please read this instruction c...

Page 2: ...rate the machine without these safety devices 2 Precaution before Starting Operation 1 ifthe machine s oil pan has an oil sump never operate the machine before filling it 2 If the machine is lubricate...

Page 3: ...41 Relationship between rotating hook motion and take up lever motion 11 115 I Relationship between hook motion and opener motion 11 I161 Relationship between needle motion and feed dog motion 12 117I...

Page 4: ...tube from the wire and stripping properly The wire connections should be then Insulated by wrapping insulating tape on the wires CAUTION The power switch must be turned off before connect ing the lam...

Page 5: ...n If the marks deviate larger than 3 mm adjust as follows 1 Disconnect the plug 12 pins of cable from the machine head 2 Run the machine and stopat UP position 3 While holding the pully insert the adj...

Page 6: ...to H level For oil use MC70M specified by Mitsubishi Oil level 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 agai...

Page 7: ...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 kee...

Page 8: ...hen 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 gui...

Page 9: ...ent thread for example is used pass the thread through thread guide as well 2 With the take up lever located at the upper most position pass each needle thread in the order shown in the following figu...

Page 10: ...of bobbin 1 Pull out 5 cm thread tail from the bobbin 2 Hold the bobbin so that the bobbin thread is would in right direction and put it into the hook Touch back button Direction of stitching can be...

Page 11: ...en Balance of thread tension AO 8X CX Balanced tension Tight needle or loose bobbin tension Loose needle or tight bobbin tension Tol Needle threadtension Needle thread tension should be adjusted in re...

Page 12: ...edle is at DOWN position the smaller crossed herical gears on the right side and left side should be engaged with the larger wheel so that the S screw of the former gear comes on the front side and th...

Page 13: ...n For light fabrics For usual fabrics For heavy fabrics Approx 0 8mm from throat plate Approx 1 0mm from throat plate Approx 1 2mm from throat plate Adjustment procedure 1 Lean the machine head backwa...

Page 14: ...f lower shaft bearing 3 If the timing mark is not in line with the black line remove the timing belt and in stall it again to adjust I Relationship between hook motion and opener motion 1 Turn the bal...

Page 15: ...cted with the link at right angle as shown in Figure 71 If the connection is not at right angle re move the back cover loosen screw and move the right link to connect the right feed lifting rock shaft...

Page 16: ...bed by left hand turn the balance wheel slowly by right hand away from you as shown in the figure 2 The balance wheel will stop by the gear plate but turn the balance wheel more firmly 3 Release the p...

Page 17: ...hen fabric with large elasticity is sewn or when thickness of fabric changes the vertical stroke movable range of the presser feet should be adjusted as follows Adjustment 1 Loosen the special bolt 2...

Page 18: ...ife To lessen backward i stitch length Eccentric shaft Connecting rod Screw To lessen I forward stitch length 1 Initial position of movable knife 1 Turn the balance wheel and lower the needle bar to t...

Page 19: ...ook positioner Approx 0 2 mm Screw Screw Inner hook Adjustment of threadtrimmer cam 1 Turn the balance wheel by hand until the needles reach the lowest position 2 Maintaining the needle position depre...

Page 20: ...e arm Toadjust loosen two tension release cam clamp screws 4 Opening degree of tension disc should be adjusted with the tension release roller g mounted on the convexed portion of thread release cam a...

Page 21: ...ing failure adjust it so that thread can be trimmed with minimum pressure 3 Move the movable knife and check that the thread can be sharply trimmed Fixed knife bracket Hexagon socket head cap screw Ve...

Page 22: ...follower crank E and adjust the connecting rod Qso that the cam roller can smoothly enter the groove of thread trimmer cam 11 Adjustment of the cam groove and the cam roller a Push the cam follower cr...

Page 23: ...eedle DOWN position Presser foot goes up Presser foot goes up Sewing machine rotates one turn and trims thread then presser foot goes up Sewing machine rotates half turn from DOWN to UP position and t...

Page 24: ...reases the low speed and counterclockwise turn decreases The speed Is adjustable between 160 and 320spm factory set to 250spm Speed setting Internal variable resistors L P T H M rt iwii iwiraiw L Low...

Page 25: ...S3L Presser foot liftingcancel switch by light heeling RU Reverser needle liftingswitch Usedto stop the sewing machinenear the needle bar topdead center byreversing the motor after thread trimming S6...

Page 26: ...7 Correction stitching 6 VC2 1 UP DOWN control 5 Variable speed signal 4 Thread trimmer 3 nIE OV 1 Run medium speed 2 OV 1 External knob 10k n Option 2 SH CK One shot 6 UP position signal 5 DOWN posi...

Page 27: ...omatic Thread trimmer O o O Touch back O o O Hook horizontal full rotating Large Bobbin Aluminum trimmer type Lubrication system Automatic lubrication Oil MC70M Bed dimensions mm 517 X 178 Needle gaug...

Page 28: ...ISHI ELECTRIC CORPORATION EAO 0 IC MITSUBISHI 0 H I SLOG m RukouCki TOKYO lao TCiEK j2 53J CABiE MElCO TQKyO A180E271P01 Printed in Japan From the library of Superior Sewing Machine Supply LLC www sup...

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