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9 - 2   S t i t c h   l e n g t h

 

The stitch length can be adjusted from 2 to 5mm 
with no step.  The following table shows the stitch 
length with the number of stitches within 1 inch 
(25.4mm) and 30mm. 

 

No. of stitches 

Stitch length 

(mm) 

within 1" 

within 30mm 

13 

15 

8.5 

10 

 

■ 

To change the stitch length 

1.  Loosen  bolt A while checking the direction in 

which the bolt is loosened. 

2.  Insert a screwdriver from hole C. 

To decrease the stitch length, turn screw B 
clockwise.  To increase the stitch length, turn screw B counterclockwise. 

3.  After this adjustment is made by turning screw B, be sure to tighten screw A. 

 
 
 
 
 
 

10

ADJUSTING THE PRESSER FOOT   

1 0 - 1   P r e s s e r   f o o t   p r e s s u r e  

The presser foot pressure should be as light as 
possible, yet be sufficient to feed the fabric and 
produce uniform stitches. 
To increase the presser foot pressure, turn the 
adjusting knob clockwise. 

 
 
 
 
 
 
 
 
 
 
 

 

 

< Note > 
Be sure turn off the motor when changing the stitch length.

 

 

 

Summary of Contents for DFB Series

Page 1: ...INSTRUCTION Industrial Sewing Machines Sixth edition January 2004 No 030203 DFB1404P PMD DFB1412P PQ PS DFB1412PSM PTV DFB1012P PSM PQ DFB1402MR DFB1412MR ...

Page 2: ...dures on this machine 2 Before starting the machine check to make sure the pulley cover safety cover etc are secured 3 Before adjusting cleaning threading the machine or replacing the needle be sure to turn off the power 4 Never start the machine with no oil in the reservoir 5 Refer to the parts list as well as this instruction manual before performing preventive maintenance 6 The contents describ...

Page 3: ... height tilt 22 9 2 Stitch length 23 10 ADJUSTING THE PRESSER FOOT 10 1 Presser foot pressure 23 10 2 Position of the presser foot 24 11 ADJUSTING THE REAR PULLER DEVICE 11 1 Manual lever 24 11 2 To adjust the puller pressure 24 11 3 Adjusting the feeding amount of the rear puller 24 12 ADJUSTING THE FRONT PULLER DEVICE 12 1 To insert elastic and adjust the feeding amount of the front puller 25 13...

Page 4: ...uge width 38 1mm 1 1 2 inch 70mm 2 NEEDLES THREADING THE MACHINE 2 1 N e e d l e s UO113GS of Schmetz or Organ Select the proper needle for the fabric and thread Needles and needle size Schmetz UY113GS Nm75 Nm80 Nm90 Nm100 Organ UO113GS 11 12 14 16 2 2 R e p l a c i n g t h e n e e d l e When replacing the needle check the needle carefully to see that the scarf is turned to the left of the machine...

Page 5: ...t the looper toward the front 1 Bring needle bar A to the top of its stroke 2 Pay out the needle thread from the spool by pressing a finger down on needle threads B 3 Pull looper drawing bar knob C out to the left so that the looper holder is tilted toward the front of the machine 4 After the machine is threaded replace the looper by pressing looper holder D into the machine until it clicks Note T...

Page 6: ...3 Threading diagram for DFB1404 ...

Page 7: ...4 Threading diagram for DFB1406 ...

Page 8: ...5 Threading diagram for DFB1412 ...

Page 9: ...6 Threading diagram for DFB1412PSM ...

Page 10: ...7 Threading diagram for DFB1412PQ ...

Page 11: ...8 Threading diagram for DFB1412PQSM ...

Page 12: ...9 Threading diagram for DFB1012 ...

Page 13: ...10 Threading diagram for DFB1012PSM ...

Page 14: ...11 Threading diagram for DFB1012PQ ...

Page 15: ... the machine pulley 3 2 M o t o r b e l t Motor 3 phase 2 pole 400W clutch motor Belt M type V belt Select the proper motor pulley according to the machine speed refer to the motor pulley outer diameter on the table below Adjust the position of the motor by pressing the finger onto the middle of the belt so that 1 2cm deflection can be achieved see the illustration on the right Machine speed Model...

Page 16: ...o extend machine life be sure to replace the oil after the first 250 hours of operation To replace the oil follow the procedures below 1 Remove the V belt from the motor pulley and then remove the machine from the table 2 Remove screw D and then drain the oil Be careful not to stain V belt with the oil 3 After draining the oil be sure to tighten screw D 4 Fill the machine with oil by referring to ...

Page 17: ...14 5 SEWING MACHINE INSTALLATION 5 1 C u t t i n g t h e m a c h i n e t a b l e 1402 1404 ...

Page 18: ...15 1406 1412 1012 ...

Page 19: ...16 1412 1012PSM ...

Page 20: ...17 1412 1012PQ ...

Page 21: ...18 1412PQSM ...

Page 22: ...o o p e r h o l d e r b r a c k e t Insert the looper into the looper holder until bottom A of the looper touches looper holder bracket B Then tighten screw C When the looper passes the needle there should be a clearance of 0 0 1mm between the point of the looper and the scarf of the needle Adjustment is made by loosening screw D and moving the looper holder bracket left or right ...

Page 23: ...e chainstiching when the looper enters the needle thread loop the point of the looper should be 4mm above the top of the needle s eye To make this adjustment remove the cover first loosen eccentric set screw D and then move eccentric ball A 6 3 L o o p e r s e t t i n g d i s t a n c e When the needle bar is at the bottom of its stroke set the distance from the point of the looper to the center of...

Page 24: ... Standard model 34mm 13 5mm 7 ADJUSTING THE TIMING OF THE RETAINER LOOPER 7 1 P o s i t i o n o f t h e r e t a i n e r l o o p e r Install retainer looper A so that its flat surface is turned upward At this time there should be a clearance of 0 5mm between the needle and the point of the retainer looper Adjustment is made by loosening B Note After the above adjustment is made check to make sure e...

Page 25: ...t i o n o f t h e n e e d l e g u a r d When the needle is closest to the needle guard there should be a clearance 0 0 1mm between the right side of the needle and needle guard A Adjustment is made by loosening screw B 9 ADJUSTING THE FEED DOG STITCH LENGTH 9 1 F e e d d o g h e i g h t t i l t When the needle bar is at the top of its stroke the feed dog teeth should be 1 1 2mm above the top surfa...

Page 26: ...oosened 2 Insert a screwdriver from hole C To decrease the stitch length turn screw B clockwise To increase the stitch length turn screw B counterclockwise 3 After this adjustment is made by turning screw B be sure to tighten screw A 10 ADJUSTING THE PRESSER FOOT 1 0 1 P r e s s e r f o o t p r e s s u r e The presser foot pressure should be as light as possible yet be sufficient to feed the fabri...

Page 27: ...1 1 1 M a n u a l l e v e r To position or remove the fabric raise manual lever A 1 1 2 T o a d j u s t t h e p u l l e r p r e s s u r e The puller pressure should be as light as possible yet be sufficient to feed the fabric smoothly To increase the pressure turn adjusting knob D clockwise To decrease the pressure turn adjusting knob D counterclockwise 1 1 3 A d j u s t i n g t h e f e e d i n g ...

Page 28: ...ension varies according to sewing conditions such as the fabric thread and stitch length to be used Tension on the needle thread can be adjusted with nuts A Tension on the looper thread can be adjusted with nuts B To increase the tension turn the nuts clockwise 1 3 2 P o s i t i o n o f t h e n e e d l e t h r e a d e y e l e t s On 1402 1404 secure needle thread eyelet C at the top end of the slo...

Page 29: ...eyelet bar at the bottom of its stroke adjust distance A between the eye on the looper thread eyelet and the looper thread eyelet bar by referring to the table below Thread type Distance A Polyester Tetoron 8mm Spun 10mm Wooly 15mm 14 PSM MECHANISM 1 4 1 T y p e s o f c a m s There are 9 types of cams from No 1 to No 9 9 types of standard patterns Various kinds of decorative stitches can be produc...

Page 30: ...ide to use the lower two spreaders Install any one of cams No 2 to No 9 on the inside to use the upper spreader Thread spreaders eyes marked Following the above procedures automatically produces the decorative stitches below refer to decorative stitches No 2 to No 9 N o 1 N o 2 N o 3 N o 4 ...

Page 31: ...28 N o 5 N o 6 N o 7 N o 8 N o 9 ...

Page 32: ...moving Adjustment is made by loosening screws C and J see Replacing the cams 2 Position of spreader K With spreader K at the extreme left end of its travel the third spreader s eye on spreader K should be aligned with the center of the left end needle Adjustment is made by loosening nut D for lever N see Replacing the cams 3 Position of spreaders L and M With spreader L at the extreme left end of ...

Page 33: ... i n g a n d r e a s s e m b l i n g t h e b i n d e r To disassemble the binder Remove screw A Remove the binder by pulling it toward you while referring to arrows B and C To reassemble the binder Fit the ends of upper fabric guides F onto lower fabric guides G Move the binder down in the direction of arrow H Check that end D of the screw touches the bracket Then tighten screw A Note When removin...

Page 34: ...ower fingers so that distance A is halved by each vertical centerline of the needles The line formed by the points of the upper and lower fingers should be parallel with each horizontal centerline of the needles 16 PQ ADJUSTMENT A Adjustment of right left movement of retainer for elastic thread The right left movement of retainer move even of its travel for each needles Adjustment Loosen 2 screws ...

Page 35: ... adjusted by connecting bar in MD 1 device for PQ Adjustment Loosen a nut on rod it is possible to adjust the elastic thread tension by the nut move to up or down To increase the nut moves to down To decrease the nut moves to up 17 MR ADJUSTMENT 1 7 1 A d j u s t i n g l o w s t r i p p e r b l a d e The hight Y of low stripper blade A should be about 1 3mm from the surface of needle plate and the...

Page 36: ... ruffler blade be 1mm left side from the center of needle by loosening nut L See Fig 3 5 The ruffler blade B and the low stripper blade should be the clearance I by loosing screw H and move the stopper plate G to left or right When the stopper plate G is right the clearance become wide On the other hand when the stopper plate G is left the clearance become narrow The adjustment for the movementum ...

Page 37: ...edle be touched the fablic The adjustment should be made by opening top cover and adjust the timing pulley position after loosening screw A See Fig 6 18 CLEANING THE MACHINE At the end of each day remove the presser foot and the needle plate and then clean the slots of the needle plate and the area around the feed dogs F i g 6 ...

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