Singer Professional 5 Manual

							 
 
  6. Thread the looper area of the machine following the red color coded  
       thread guides 4-10. 
 
 7. Place the thread slighty from left and  
      to the right of threading guide f. 
 
  8. Place the thread slightly from the  
               front and to the back of threading 
               guide g. 
 
  9. Place the thread through h, i,and j. 
 
 
  
 
 
  10. Thread the looper eye (A) from front to back.  Pull about 4 inches of thread. 
                 Position thread into V cutout (B) on threader.  Firmly hold thread tail with left   
                 hand and pull Threader lever (C) up into place (D).  
 
 
              11. Thread eye of looper.  
 
 
 
 
 
 
NOTE: Make sure the Upper 
Looper thread is behind the Lower Looper 
thread. 
Three-Thread Overlock (wide-decorative) page 6 
“V” cutout  
Threader Lever  
						

							 
 
Three-Thread Overlock (wide-decorative) page 8   
   
  
 
  5. Continue to thread points 4-8.  Slip the thread into the middle slot of the  
      thread guide g.  Go over the take up lever h.  Continue by slipping the  
               thread into the middle slot of the thread guides i and j.  
 
  6. Before threading the eye of the needle, make sure the thread is behind
   
               the thread guide located on the bottom of the needle clamp. 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
 
 
 
 7. Thread the eye of the Left Overedge Needle k. 
 
 
 
 
 
 
 
  
 
 
 
  
 
 
 
  8. Draw about 4 inches of the thread through the needle eye towards the back 
      of the machine.  
  
      9. Place the thread to the back, under the Presser Foot.  Lower foot and sew.   
 
  
						

							 
   
  
  
                   
 
                                   
Chapter 5: 
           Three-Thread Flatlock            
               (narrow and wide) 
 
 
 
 
 
 
 
 
      
 
                             
 
 
 
 
 
 
 
 
 
                                        
						

							 
  
Three-Thread Flatlock Narrow 
 
The Flatlock Stitch is used decoratively to achieve the look of applied trim on a  
garment, craft or home decorator projects.  Special decorative threads are used for  
a textured and dramatic embellishment effect.  The Flatlock Stitch can also be used to 
serge non-bulky seams.  The Flatlock Stitch is sewn with one needle and the upper 
and lower loopers.  Both sides of the Flatlocking Stitch are considered decorative.   
The decorative loop effect is achieved when the Flatlock seams are stitched with the  
fabrics wrong sides together.  The ladder stitch is achieved when the Flatlock seams 
are stitch with the fabrics right sides together.  There are 2 different ways to set up  
for a Three-Thread Flatlock stitch.  For a more narrow stitch (4.0) select the right  
overedge needle; for a wider stitch (6.0) the left overedge needle is used.  
 
        
 
 
 
 
 
 
 
 
 
 
 
 
 
      
 
 
 
 
 
 
 
 
 
 
             
 
 
 
 
 
 
Three-Thread Flatlock (narrow) page 1  
						

							 
 
 
 
 
Needle
: 
 
 
 
ATD: 
Auto Tension Dial  
            “F” 
Left Cover Stitch 
Needle “C” Unthreaded and 
Remove Needle 
Middle Cover Stitch 
Needle “D” Unthreaded and 
Remove Needle 
Right Cover Stitch 
Needle “E” Unthreaded and 
Remove Needle 
Overedge Left  
Needle “A” Unthreaded and 
Remove Needle   
Overedge Right  
Needle “B” (Blue)    Threaded 
Upper Looper 
(Green)  Looper Engaged 
and Threaded 
Lower Looper 
(Red)     Threaded 
Chain Stitch Looper  
(Brown)     Unthreaded  
Upper Knife      Engaged 
Seam Guide Plate Not Installed, use 
Knife Cover Plate 
Seam Width Dial          “N” 
Stitch Length Dial          “2” 
Presser Foot  
Pressure          “N” 
Differential Feed Dial           “N” 
Stitch Finger          “N” 
Spreader    Disengaged 
    Set Up: 
Three-Thread Flatlock (narrow) page 2  
						

							 
 
The Flatlock stitch, with fabric’s right sides together, form a ladder stitch.  A ribbon 
can then be woven by hand in and out of the stitches.  The ladder stitch is ideal for 
joining laces together, as seen in heirloom sewing.  Another idea for the ladder 
stitch is to use decorative thread through the needle to form a bold embellishment to 
projects.  
Three-Thread Flatlock (narrow) page 3  
						

							 
 
 
    
Three-Thread Flatlock (narrow) page 4