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10

ADJUSTING THE PRESSER FOOT   

10-1 Presser foot pressure 

 

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 (see the illustration). 

 
 
 
 
 
 

10-2 Position of the presser foot and foot lift 

Fit the presser foot properly onto the presser bar. 
Make sure the needle is centered left to right in the 
needle drop hole on the presser foot when the needle 
is descending.  Adjustment is made by loosening 
screw A.    There should be a clearance of 0.5mm on 
both sides as shown in the illustration. 
Adjustment is made by loosening nuts B (on 
FX4406-FX4412). 

 

 
 
 
 
 
 
 
 

■ 

Foot lift 

Position stopper C with the presser foot 
approximately 10mm above the top surface of the 
needle plate and then tighten nut D. 

 

 
 
 
 
 
 

 

14

Summary of Contents for FX SERIES

Page 1: ...INSTRUCTION Industrial Sewing Machines First published May 1997 Fourth edition January 2006 No 050153 ...

Page 2: ...er 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 maintenance If the machine includes a thread trimmer read and study the instruction manual for the thread trimmer carefully 6 The contents described in th...

Page 3: ...istance 11 6 4 Needle height 11 7 TIMING OF THE RETAINER LOOPER 7 1 Installing the retainer looper 12 7 2 Timing of the retainer looper to the needle 12 8 ADJUSTING THE NEEDLE GUARD 8 1 Position of the needle guard 12 9 ADJUSTING THE FEED DOG STITCH LENGTH 9 1 Feed dog height tilt 13 9 2 Stitch length 13 10 ADJUSTING THE PRESSER FOOT 10 1 Presser foot pressure 14 10 2 Position of the presser foot ...

Page 4: ...412P UTC No of needles 2 4 5 6 7 12 4 needle threads 6 needle threads 12 needle threads No of threads 4 looper threads 6 looper threads 12 looper threads Type of tension set Mounted type Puller width 55mm 78mm 78mm Minimum gauge width 3 2mm 1 8 inch Maximum gauge width 50mm 70mm 1 3 Diagrammatic sketch of the Series FX4404 FX4412 1 ...

Page 5: ...oward the front of the machine using the looper drawing bar To tilt 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 b...

Page 6: ... Threading diagram for FX4404 3 ...

Page 7: ... Threading diagram for FX4406 4 ...

Page 8: ... Threading diagram for FX4412 5 ...

Page 9: ... 2 Motor belt 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 Maximum speed Standard spee...

Page 10: ...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 4 2 shown above If element E is contaminated proper oiling ...

Page 11: ... 5 SEWING MACHINE INSTALLATION 5 1 Cutting the machine table 8 ...

Page 12: ...5 2 How to install the machine 9 ...

Page 13: ... is adjusted by screw C for fixing looper angle 6 2 Looper left to right movement The timing of the looper to the needle is as follows When the point of the looper moving to the right has reached the center of the needle the point of the looper should be 1 5mm above the top of the needle s eye When the point of the looper moving to the left has reached the center of the needle the point of the loo...

Page 14: ...Needle height When the needle bar is at the top of its stroke remove plug A on the head plate loosen needle bar clamp B with a hex wrench and then move the needle bar up or down Standard needle height distance D Stroke Standard model With thread trimmer 34 5mm 14 5 14 9mm 13 6 14mm Note Do not loosen the screw on needle bar guide C If this screw is loosened make sure each needle drops into the cen...

Page 15: ... the needle bar is at the top of its stroke there should be a clearance of 0mm between the right side of the retainer looper and that of the top surface heel of the looper blade In case of UTC When the retainer looper are located at the right end of its stroke there should be on the same line with the right side of the retainer looper and the right side of looper s base 8 ADJUSTING THE NEEDLE GUAR...

Page 16: ...e number of stitches within 1 inch 25 4mm and 30mm No of stitches Position of pulley Stitch length mm within 1 within 30mm S 2 13 15 M 3 8 5 10 L 5 5 6 To change the stitch length 1 Press push button A lightly with the right hand until the end of push button A touches an inside part and clicks 2 With push button A depressed turn the handwheel with the left hand until the push button goes further i...

Page 17: ...foot and foot lift Fit the presser foot properly onto the presser bar Make sure the needle is centered left to right in the needle drop hole on the presser foot when the needle is descending Adjustment is made by loosening screw A There should be a clearance of 0 5mm on both sides as shown in the illustration Adjustment is made by loosening nuts B on FX4406 FX4412 Foot lift Position stopper C with...

Page 18: ...ust the puller pressure 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 11 3 To adjust the feeding amount of the rear puller Adjust the feeding amount of the rear puller according to that of the feed dog To increase the amount loo...

Page 19: ...r of the screw to the eyes of C is approximately 40mm 12 3 To adjust the needle thread guard With the needle bar at the bottom of its stroke the centers of the eyes on needle bar eyelet B should be level and parallel with the top surface of needle thread guard A Note Raising needle thread guard A increases the size of the needle thread loop Lowering needle thread guard A decreases the size of the ...

Page 20: ...e by loosening the screw and aligning the mark on the eccentric with that on the main shaft When the looper thread take up bar is at the bottom of its stroke adjust distance A from the eyes on the thread eyelet to the looper thread take up bar by referring to the table below Thread type Distance A Polyester 8mm Spun 10mm Woolly 15mm 13 CLEANING THE MACHINE At the end of each day remove the presser...

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