Consew Sewing Machine User Manual
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Consew Sewing Machine User Manual

Consew Sewing Machine User Manual

Sewing machine
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CONTENTS
Setting up the machine ......................................................................................
Oiling and it's adjustment .................................................................................
Winding bobbins and it's adjustment .............................................................
Adjustment of the presser feet pressure ........................................................
Adjusting the left of the alternating presser feet ..........................................
How to reset the safety clutch mechanism .....................................................
INFORMATION FOR ADJUSTMENT
Adjusting the height of the feed dog ..............................................................
Timing between the hook and needle .............................................................
Relative position between bobbin case and opener ....................................
Adjusting the height of the presser feet ..........................................................
Adjusting the thread controller spring ............................................................
Fine adjusting of the lifting presser foot .........................................................
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Summary of Contents for Consew Sewing Machine

  • Page 1: Table Of Contents

    CONTENTS Page Setting up the machine ..................Oiling and it's adjustment ................. Oil adjuster ....................Needle and thread ..................Inserting and removing bobbins ............... Winding bobbins and it's adjustment ............. Threading the machine ................Regulating the thread tension ..............Adjustment of the presser feet pressure ............

  • Page 2: Setting Up The Machine

    SETTING UP THE MACHINE Before setting up the machine on the table, attach the relative parts to the table. Hinge Motor Oil pan Oil bottle Knee lifter Stand Treadle Machine rest pin Cotton stand Cushion rubber Head of machine V belt Bobbin winder OILING AND IT'S ADJUSTMENT Do not operate the machine, even if for testing, unless it has been properly oiled.

  • Page 3: Oil Adjuster

    (2) The hook mechanism should receive careful attention when lubricating the machine. Push open the slide plate in the bed (the right and left plates in case of two needle machine) and pull out the oil gauge (C). Fill oil in the resorvior for the rotating hook mechanism up to the level marked on the oil gauge.

  • Page 4: Inserting And Removing Bobbins

    THREAD Cotton, synthetic or silk thread can be used according to your purpose, the thickness of thread is up to # 8. Left twist thread should be used in the needle, but either right or left twist thread can be used in the bobbin.

  • Page 5: Threading The Machine

    After the bobbin is filled with thread, release will cause wheel to disengage from the belt and winding will stop. Cut the thread and remove the bobbin from the spindle. Adjustment screw (5) can be turned in or out to increase or decrease the amount of thread wound on the bobbin.

  • Page 6: Regulating The Thread Tension

    REGULATING THE THREAD TENSIONS For ordinary stitching, the tension of the upper and lower threads should be equal so as to lock both threads in the center of the fabric. If the tension on either thread is stronger than on the other, imperfect stitching will be the result. If the tension on the upper thread is greater than that on the lower thread, it will be straight along the upper surface of the fabric.

  • Page 7: Adjusting The Stitch Length And Reverse Stitch

    ADJUSTING THE STITCH LENGTH The stitch length is changed by Numerals on pulley Stitch show number of pressing down the button (D, Fig. 2) in length(m/m) stitch per inch the bed plate of the machine and by simultaneously turning the handwheel slowly toward you. In due course, the plunger will enter into a notch in the feeding mechanism.

  • Page 8: How To Reset The Safety Clutch Mechanism

    HOW TO RE-SET THE SAFETY CLUTCH MECHANISM The sewing hook and it's mechanism are protected by a safety clutch. In case the hook gets jammed with thread or other foreign matter, the safety device disengages the driving belt, stops sewing, and thus prevents the machine from getting damaged. If it should become necessary to re-engage the safety clutch, depress the button (E, Fig.

  • Page 9: Adjusting The Height Of The Feed Dog

    After inserting the belt correctly, replace the rear bushing, screws, the arm top cover, etc. to their original Places. Finally, adjust the timing marks mentioned in the item No. 1. ADJUSTING THE HEIGHT OF THE FEED DOC The maximum height of the feed dog (1) from the surface of the needle plate (2) is normally 1 mm.

  • Page 10: Adjusting The Timing Of The Needle Plate, Needle And Feeder

    ADJUSTING THE TIMING OF THE NEEDLE PLATE, NEEDLE AND FEEDER 1. THE POSITION OF THE FEEDER AGAINST THE NEEDLE PLATE Adjust the feed motion to the minimum and loosen the screw (4, Fig. 14). Set the needle hole (1) on the feeder to 1.5 mm from the center (A) of the hook, and after this adjustment, tighten the screw.

  • Page 11: Adjusting The Height Of The Needle Bar

    ADJUSTING THE HEIGHT OF THE NEEDLE BAR 1. When the needle bar is at its highest point, normally the measurement between the surface of the needle plate and the upper end of the needle eye is 22.5 mm. To adjust this, loosen the set screw (2, Fig. 19), move the setting position of the needle bar and the needle bar connecting stud (3, Fig.

  • Page 12: Relative Position Between Bobbin Case And Opener

    RELATIVE POSITION BETWEEN BOBBIN CASE AND OPENER 1. Loosen the screw (1), turn the balance wheel until the opener (2) is located at the extreme right hand position of its travel. 2. In this position, adjust it so that the clearance between the inside edge of the opener and the tab on the bobbin case holder is about 0.2 mm.

  • Page 13: Timing Of The Vibrating Presser Foot

    TIMING OF THE VIBRATING PRESSER FOOT This is the normal timing when turn the balance wheel toward you, after lowering the presser bar lifter, the vibrating presser foot should reach the feeder earlier than the needle eye comes to, and when the needle raises, the vibrating presser foot should leave the feeder after the needle eye has left the feeder.

  • Page 14: Fine Adjusting Of The Lifting Presser Foot

    FINE ADJUSTMENT OF THE UPPER FEED Ordinarily, the feeding momentum of the lower feed synchronizes with that of the upper feed. If, when the momentum does not synchronize, or increasing or decreasing that of the upper and needle feed according to the sewing conditions, the following adjustments are offered.

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