UnionSpecial 39500MK Instructions For Adjusting And Operating Download | Manualshive

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From the library of: Superior Sewing Machine & Supply LLC

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Summary of Contents for 39500MK

Page 1: ...CATALOG No 103MK INDUSTRIAL SEWING LEWIS COLUMBIA MACHINES CLASS 39500 HI STYLED HIGH SPEED TWO NEEDLE FOUR THREAD THUMBSCREW ADJUSTED DIFFERENTIAL FEED MACHINES C HI CAGO From the library of Superio...

Page 2: ...OPERATING LIST OF PARTS CLASS 3 9500 Style 39500 MK First Edition Copyright 1971 by Union Special Machine Co Rights Reserved in All Countries MACHINE COMPANY INDUSTRIAL SEWING MACHINES CHICAGO Printe...

Page 3: ...lies specifically to the standard Style of machine as listed herein It can also be applied with discretion to some Special Styles of machines in Class 39500 References to directions such as right left...

Page 4: ...given on the label of all needles packaged and sold by Union Special Class 39500 machines use a curved blade needle The standard recommended needle for Style 39500 MK is Type 154 GAS Below is the desc...

Page 5: ...uide fmUpper Looper Thread Eyelet Auxiliary Looper Thread Eyelet I3Lower Looper Thread Eyelet mFabric Guard Bracket DFrame Looper Thread Guide m Presser Arm Fig 1 5 Top Cover ji 1 11 1 Needle Thread E...

Page 6: ...ive positions for clarity It will simplify the threading of these machines to follow the recommended se quence of threading lower looper first upper looper second and needles third Before beginning to...

Page 7: ...s sure loosening decreases pressure When pressure adjust ing screw B has been properly set tighten lock nut A With presser foot resting on throat plate position locking nut C sothat its undersurface i...

Page 8: ...or closing SETTING THE NEEDLE With throat plate assembled in position needles should center in the front end of needle slots When needles are at high position needle points should be set 31 64 inch a...

Page 9: ...TTING THE UPPER LOOPER Fig 8 Insert upper looper A Fig 9 in its holder Screw B holds upper looper in its holder and permits it to be pushed in or out or turned around its shank Insert upper looper hol...

Page 10: ...place With the feed dogs at their highest point of travel the top of the teeth on the main and differential feed dogs A B should be the depth of a full tooth above the throat plate The chaining feed...

Page 11: ...w slip off Fig 14 A Fig 15 Using hooked eccentric extractor E supplied with machine reach behind eccentric B as shown and with draw eccentric It may be necessary to move handwheel back and forth sligh...

Page 12: ...de with screw E and locked with nut F Re assemble the chip guard fabric guard and cloth plate To make assembly of chip guard easy turn handwheel until upper knife assembly reaches its highest position...

Page 13: ...ing to adjust upper looper thread eyelet N Fig 1 balance all four tensions to give a normal appearing stitch Moderate change in these tensions will not markedly affect the purl During needle down stro...

Page 14: ...14 From the library of Superior Sewing Machine Supply LLC...

Page 15: ...568 J 22743 39526 AT 39580 AE 39580 E 39505 AT 39520 w 39597 w 39530 22768 B 39540 B 12 Description Am t Req Upper and Lower Looper Thread Tension Spring 2 Upper Looper marked CJ 1 Differential Feed C...

Page 16: ...needs promptly and efficiently Whatever your loca tion there is a Union Special Representative to serve you Check with him today ATLANTA GA MONTREAL CANADA BOSTON MASS TORONTO CANADA CHICAGO ILL BRUS...

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