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Kenmore 15, Instructions Manual, Page: 32 / 36

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Kenmore 15 Instructions Manual Download Page 32

WHAT TO DO 

 

PROBLEM PROBABLE 

CAUSE 

CORRECTION 

Irregular  

Stitches

 

Incorrect size needle. 
Improper threading. 
Loose upper thread tension. 
Pulling fabric. 
Light pressure on presser foot. 
Loose presser foot. 
Unevenly wound bobbin. 

Choose correct size needle for thread and fabric (page 5). 
Rethread machine (page 9). 
Tighten upper thread tension (page 12). 
Do not pull fabric; guide it gently. 
Increase pressure on presser foot (page 10). 
Reset presser foot (page 15). 
Rewind bobbin (page 7). 

Breaking 

Needles

 

Pulling fabric. 
Incorrect size needle. 
Incorrect setting of needle. 
Loose presser foot. 

Do not pull fabric; guide it gently. 
Choose correct size needle for thread and fabric (page 5). 
Reset needle (page 5). 
Reset presser foot (page 15). 

Bunching of 

Thread 

Upper and lower threads not 
drawn back under presser foot. 
 
Feed dog down. 

Draw both threads back under presser foot (page 10). 
 
 
Raise feed dog (page 15). 

Puckering 

 
Incorrect thread tension(s). 
Light pressure on presser foot. 
Using two different sizes or 
kinds of thread. 
Bent or blunt needle. 
Loose presser foot. 
Fabric too shear or too soft. 
 

Reset thread tension(s) (page 12, 13). 
Increase pressure on presser foot (page 10). 
Upper thread and bobbin thread should be same size and 
kind. 
Insert new needle (page 5). 
Reset presser foot (page 15). 
Use underlay of tissue paper of tarleton when stitching. 

 

 

30

 

Summary of Contents for 15

Page 1: ......

Page 2: ...r suggestions and instructions for specific controls that allow you to do many tedious tasks automatically The following pages offer suggestions and instructions for specific ornament and time saving operations See p 24 before using the automatic patterns or zigzag stitch We feel the KENMORE Automatic Zigzag Sewing Machine is the finest of its kind and we are happy to offer help with any questions...

Page 3: ...e 8 Inserting Disc 16 Inserting and Removing Material 14 Installing Machine Head 4 Needle Thread Chart 5 TABLE OF CONTENTS Needle Size 5 Overcasting 23 Parts List 33 Picking up Bobbin Thread 10 Placement of Needle 5 Removing Bobbin Case from Shuttle 6 Reverse Stitching 11 Replacement of Belt 27 Setting Stitch Length 11 Setting Stitch Width 16 Sewing Light 4 Sewing on Buttons 19 Sewing on Lace 22 S...

Page 4: ... 5 Thread Guides 6 Thread Tension Assembly 7 Thread Guide 8 Face Cover Plate 9 Thread Take up 10 Arm Cover Plate 11 Bobbin Winder Mechanism 12 Stitch Width and Buttonhole Control Knob 13 Stitch Length Control Knob 14 Light Switch 15 Feed Dog Control Knob 16 Nomenclature Plate 2 ...

Page 5: ...ole Reverse Stitch Length Control 20 Upper Thread Spool Pins 21 Pattern Disc Shaft Cover 22 Bobbin Winder Tension Disc 23 Upper Thread Guides 24 Presser Foot Knob 25 Presser Foot Lever 26 Needle Clamp Screw 27 Thread Cutter 28 Needle Plate 3 ...

Page 6: ...er plate as shown It may be turned on or off by pushing light switch In order to operate the machine the switch must be on To remove bulb turn light switch off open the face cover plate by swinging it open push bulb in slightly turn bulb clockwise and remove from socket To replace push in new bulb in and turn counter clockwise See illustration 4 CONNECTING MACHINE Push the plug onto three prong co...

Page 7: ...nthetics Light weight woolens Cotton 40 60 Mercerized 50 Mercerized heavy duty 16 Heavy weight cottons Medium to heavy weight woolens Heavy drapery fabrics Cotton 30 50 Mercerized heavy duty 18 Heaviest cottons as for men s work clothes Heaviest woolen coating NEEDLE SIZE Use KENMORE 6021 needles The size of needle should conform to the size of the thread and both should be suitable to the materia...

Page 8: ...6 ...

Page 9: ...WINDING THE BOBBIN 7 ...

Page 10: ...INSERTING BOBBIN INTO BOBBIN CASE CASE INTO SHUTTLE 8 ...

Page 11: ...THREADING UPPER MACHINE 9 ...

Page 12: ...ter ring of presser foot knob See illustration This will release pressure of presser foot To increase pressure push down inner pin until suitable pressure is obtained For ordinary sewing the inner pin should be about half way down When sewing multiple thickness of heavy material reduce the pressure Increase it when sewing sheer fabrics Insufficient pressure may cause skipped stitches or difficulty...

Page 13: ...NG Raise lever for reverse stitching Lower lever for forward stitching It is best to begin and end most steams with reverse stitching often called back tacking For accomplishing quicker more even and firmer basting we suggest you regulate the machine in the following manner Set stitch length at No 4 for the longest possible stitch Basting is easily removed by pulling bottom thread When basting ver...

Page 14: ...ADJUSTING TENSIONS 12 REMEDY PROBLEM A perfect stitch will have threads locked between the two layers of fabric with no loops on top or bottom Refer to page 32 ...

Page 15: ...s adjustment less frequently than the upper thread tension When stitch is satisfactory as in figure 1 and seam is badly puckered the cause may be tight tensions and both upper and lower may be adjusted See page 32 When adjusting the tension on the bobbin case make slight adjustments with a screwdriver See page 32 13 ...

Page 16: ...r foot and start sewing Experiment by sewing on the fabric to be used to determine tension adjustment and correct stitch settings To remove the work first turn the hand wheel toward you until the needle is at its highest position then raise the presser foot draw material to the rear and cut off excess thread with the thread cutter located on the presser bar To avoid sewing off the end of the mater...

Page 17: ...e front Tighten the screw using the large screw driver and make sure that the foot is secure TURNING A CORNER Stop sewing machine with needle in fabric Raise presser foot Turn fabric Lower presser foot and continue stitching FEED DOG The feed dog control knob is situated on the right front of machine bedplate When knob is turned to the right feed dog drops and does not pull material This allows th...

Page 18: ...TERN DISC 1 Turn hand wheel so that the needle is in its highest position 2 Pull pattern disc shaft cover open 3 Push cam follower releaser lever A to the right and keep it there during insertion 4 Grasp pattern disc and slip disc onto the shaft Make sure the retaining pin B enters hole in disc 5 To remove pattern disc open cover and pull it out from the shaft There are two different patterns on e...

Page 19: ...hine The movements of the needle are controlled by the disc Basic decorative stitches are made with stitch width at 4 and stitch length at the red mark on the indicator plate The latter will vary slightly depending upon the type of material to be sewn Pattern will be changed if using any patterns also can be made with double needle See page 25 17 ...

Page 20: ...gles to the previous stitching Use medium machine speed You can make any length stitches desired Slow movement of fabric will make short darning stitches Fast movement will make long stitches 5 When you finish darning raise presser foot and remove fabric Increase pressure for general sewing by pressing down inner pin of the presser foot knob Turn feed dog control to left WITHOUT PRESSER FOOT 1 Tur...

Page 21: ...aight pin or needle between the holes of the button BLIND STITCHING Disc 1B May vary depending on type of material Stitch width 2 Stitch length 3 1 Prepare the hem with a turned and edgestitched finish or 2 Apply seam tape along the raw edge with either straight or zigzag stitching 3 Turn hem and baste about 1 8 inch from the edge of the seam tape using longest stitch on the sewing machine 4 Fold ...

Page 22: ... steps 1 to 4 Reproduction on identical size buttonholes is facilitated with the aid of the graduations on the left side of the buttonhole foot These graduations are 1 8 inch apart Just mark the starting points of the buttonholes let the needle pierce the fabric and set the index mark A on the upper portion of the foot at the same graduation mark B as it was set for the first buttonhole Lower the ...

Page 23: ...21 ...

Page 24: ...and place lace on top of fabric overlapping edge by inch Start sewing with needle at the left stitch Position fabric and lace so that needle goes into left edge of lace To sew two pieces together to make a continuous pattern use the same method STRAIGHT OR THREE CORNERED TEAR Stitch width 4 Stitch length at red mark Pattern disc 4A Position tear under needle and stitch along the straight tear catc...

Page 25: ...ol Down Draw initial or words to be sewing on fabric and fit fabric into embroidery hoops Writing is done with either zigzag or straight stitching Remove presser foot Set stitch width for straight or zigzag stitches as desired Slip hoop and fabric under the needle lower presser bar and take one stitch to raise bobbin thread through fabric Using a medium speed stitch along marked outline guiding fa...

Page 26: ... NEEDLE Place a spool of thread on each spool pin Draw each threads through upper thread guides Continue threading the machine as you would for single needle sewing Draw one thread through each needle from front to back and pull several inches of thread through Thread bobbin and pick up bobbin thread as for single needle sewing 3 THREAD SELECTION Use mercerized sewing thread size 50 and finer Mach...

Page 27: ...sser foot and needle plate The stitch width control should not be advanced beyond 2 setting black dot 5 TURNING A CORNER To turn a square corner in double needle stitching stop stitching with the needle tips just piercing the fabric Raise the presser foot shift fabric half the turn lower presser foot and take one stitch Raise the presser foot again complete the turn and begin stitching in the new ...

Page 28: ...not absorbent b Use a synthetic thread c Use a fine needle as recommended in chart on page 5 d Wind the bobbin in the usual way but do not pass thread between tension discs Guide thread by hand for a smoothly wound bobbin e Choose the stitch length that gives the most satisfactory seam f Check threads tensions by sewing on a double thickness of the fabric to be used Usually the upper thread tensio...

Page 29: ...ow the belt to support the weight of the motor and then firmly tighten the motor bracket set bolt CLEANING AND OILING Keep the moving parts free from dust and thread for quiet and efficient operation Cleaning should be done with a small brush When machine runs hard or makes excessive noise place a drop of KENMORE sewing machine oil at the points indicated in Figs A B C Swing hinged face cover plat...

Page 30: ...highest 3 Clean the shuttle race of any lint point and remove bobbin case or small particles of thread with a small brush 2 Push levers sideways of the shuttle assembly and lift hook and hook 4 Put a drop of oil on the center pin ring out by the center pin and on race in back of the hook 28 ...

Page 31: ...e hold hook by center pin and fit carefully into assembly opposite the hook driver Slip hook ring into place Snap the lever into position Occasionally remove the needle plate and clean feed dog with a soft brush 29 ...

Page 32: ...ose presser foot Do not pull fabric guide it gently Choose correct size needle for thread and fabric page 5 Reset needle page 5 Reset presser foot page 15 Bunching of Thread Upper and lower threads not drawn back under presser foot Feed dog down Draw both threads back under presser foot page 10 Raise feed dog page 15 Puckering Incorrect thread tension s Light pressure on presser foot Using two dif...

Page 33: ... stitch at a medium speed Rethread machine page 9 Loosen upper thread tension page 12 Choose correct size needle for thread and fabric page 5 Insert new needle page 5 Breaking Bobbin Thread Improper bobbin case threading Tight bobbin thread tension Lint in bobbin case or shuttle Check bobbin case threading page 8 Loosen bobbin thread tension page 13 Clean bobbin case and shuttle page 28 29 Fabric ...

Page 34: ... triangle Make a line of stitching from fold a If seam is puckered both tensions are too tight b If bottom thread lays on the fabric tighten upper thread tension and repeat test See page 12 Figure 3 c If top thread lays on top of fabric loosen upper thread tension and repeat test See page 12 Figure 2 Grasp the stitching and pull with a snap to make threads break a If both threads break tensions ar...

Page 35: ...es and you will be billed accordingly Description Shuttle hook Needle clamp Bobbin Bobbin case Light bulb Large screw driver Small screw driver Pattern disc 1A B Pattern disc 2A B Pattern disc 3A B Pattern disc 4A B Pattern disc 5A B Pattern disc 6A B Pattern disc 7A B Double needle Pack of assorted needles Bobbin winder rubber ring Nylon disc Thread spool pin Bobbin winder thread guide Presser fo...

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