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Trouble shooting, Technical data
Problem Cause Solution Page
The machine does not ...... The main switch is not on.
sew The machine is not plugged in.
Fabric does not feed ......... Differential feed is adjusted incorrectly.
evenly Presser foot pressure is too low.
Lower or upper knife is too blunt or
wrongly positioned.
Thread breaks ................... Thread tension is too tight for the thread
being used.
The machine is not threaded correctly.
Needles are inserted incorrectly.
Wrong needles used.
Needles break ................... Needles are bent or blunt, points are
damaged.
Needles are not inserted correctly.
Fabric was pulled while sewing.
Skipped stitches ................ Needles are bent or blunt.
Wrong needles used.
Presser foot pressure is too low.
Poor stitch formation ......... Threads are not correctly between the
tension discs.
Thread has got caught.
Machine is threaded incorrectly.
Seams flute or wave, ........ Fabric was pulled while sewing.
especially when Presser foot pressure is too high.
sewing knits. Differential feed is set incorrectly.
Seams pucker ................... Needle thread tension is too high.
Differential feed is set incorrectly.
Fabric edges curl .............. Too much fabric is in the stitch.
Thread tension is too high.
Stitch selection lever is on roll hem.
Thread loops are too ......... Too little fabric in the stitch.
Switch machine on. (power switch to “I”). ............................................ 11
Insert plug in main socket. ..................................................................... 9
Check the differential feed setting. ....................................................... 24
Adjust the presser foot pressure. ......................................................... 27
Replace the upper or lower knife. ........................................................ 32
Reduce thread tension. ........................................................................ 22
Check the threading. ..................................................................... 16~20
Insert needles fully into needle clamp,
with the flat side to the back. ................................................................ 14
Use the needle system 130/705H. ....................................................... 14
Replace needles. ................................................................................. 14
Insert needles fully into needle clamp,
with the flat side to the back. ................................................................ 14
Guide fabric gently with both hands
Replace the needles. ........................................................................... 14
Use needle system 130/705H. ............................................................. 14
Increase presser foot pressure. ........................................................... 27
Check if thread is lying between tension discs .................................... 15
Raise the presser foot and pull the thread. .......................................... 12
Check threading path of each thread. ........................................... 16~20
Check threading path of each thread. ........................................... 16~20
Guide fabric gently. ..................................................................................
Reduce presser foot pressure. ............................................................. 27
Adjust differential feed to N-2. .............................................................. 24
Reduce the needle thread tension. ...................................................... 22
Adjust differential feed to 0.7-N ............................................................ 24
Reduce cutting width. ........................................................................... 23
Reduce thread tension. ........................................................................ 22
Set selection lever to overlock ............................................................. 26
Increase the cutting width .................................................................... 23
We reserve the right to make changes in the interest of technical progress.
Stitch choice
Needle system
Seam width
Stitch length
Differential feed
Presser foot lift
Handwheel
Sewing speed
Weight
Dimensions
Foot control model nr.
2 needles, 2 loopers: 4 thread overlock with integrated safety seam
1 needle, 2 loopers: 3 thread flatlock, narrow seam, roll hem
1 needle, 1 looper: 2 thread overlock, flatlock, roll hem (800DL)
2 needles, 1 looper: 3 thread super stretch (800DL)
130/705H
800DL 700D
3-5 mm (2/3 thread overlock) 3-5 mm (3 thread overlock)
5-7 mm (4 thread overlock, 3 thread super stretch) 5-7 mm (4 thread overlock)
1-4 mm
No waving or fluting in knits N-2
No puckering 0.7 - N
5 mm
rotates forwards
Up to 1500 s.p.m.
7kg
315(W) X 290(D) X 290(H) mm
YC-482 (USA and Canada only)
YC-483N (220-240V)
35


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