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4.4. Troubleshooting Guide / Technical Data
We reserve the right to make changes in the interest of technical progress.
Technical data
Stitch choice Over lock
2 needles, 2 loopers: 4 thread overlock with integrated safety seam
1 needle, 2 loopers: 3 thread overlock, ß atlock roll hem
1 needle, 1 looper: 2 thread overlock, ß atlock roll hem
2 needles, 1 looper: 3 thread super stretch
Needle system
Seam width
Handwheel
Weight
Foot control model nr.
Stitch length
Presser foot lifter
Sewing speed
Dimensions
130 /705 H
3-7 mm (Right needle 3/2 thread overlock)
5-9 mm (Left needle 3/2 thread overlock)
5-9 mm (4 thread overlock / 3/2 thread overlock / 3 thread super stretch)
1-4 mm
5 mm
rotates forwards
Up to 1500 s.p.m.
8.4 kg
300 (W) x 260 (D) x 290 (H) mm
YC-482 (USA and Canada only)
YC-483N (220-240V)
Differential feed
No puckering 0,7 - N
No waving or ß uting in knits N - 2
60
The machine does not
sew:
Cause SolutionProblem Page
• Looper or cloth plate cover is open.
• The main switch is not on.
• The machine is not plugged in.
• Close the looper or the cloth plate cover.
• Switch machine on. (Main switch to “I”)
• Insert plug into main socket.
Fabric does not feed
evenly
Thread breaks
Needles break
Skipped stitches
Poor stitch formation
Seams ß ute or wave,
especially when
sewing knits
Seams pucker
Fabric edges curl
Thread loops are too
Loose
• Differential feed is wrongly adjusted.
• Presser foot pressure is too low.
• Lower or upper knife is blunt or wrongly positioned.
• Thread tension is too tight for the thread being used.
• The machine is not threaded correctly.
• Needles are incorrectly inserted.
• Wrong needles.
• Needles are bent or blunt, points are damaged.
• Needles are not inserted correctly.
• Fabric was pulled while sewing.
• Needles are bent or blunt.
• Wrong needles used.
• Presser foot pressure is too low.
• Threads are not correctly between the tension
dials.
• Thread has got caught.
• Machine is incorrectly threaded.
• Fabric was pulled while sewing.
• Presser foot pressure is too tight.
• Differential feed is set incorrectly.
• Needle thread tension is too tight.
• Differential feed is set incorrectly.
• Too much fabric is in the stitch.
• Thread tension is too tight.
• Stitch selection lever is on roll hem.
• Too little fabric in the stitch.
• Check the differential feed setting.
Adjust the presser foot pressure.
• Replace the lower or upper knife.
• Reduce thread tension.
• Check the threading.
• Insert needles fully into needle clamp with ß at
side to the back.
• Use needle system 130/705H.
• Replace needles.
• Insert needles fully into needle clamp with ß at
side to the back.
• Guide fabric gently with both hands.
• Replace the needles.
• Use needle system 130/705H.
• Increase presser foot pressure.
• Check if thread is lying between tension discs.
• Raise the presser foot and pull the thread.
• Check threading path of each thread.
• Check threading path of each thread.
• Guide fabric gently.
• Reduce presser foot pressure.
Adjust differential feed to N - 2.
• Reduce the needle thread tension.
Adjust differential feed to 0.7 - N.
• Reduce cutting width.
• Reduce thread tension.
• Set selection lever to overlock.
• Increase the cutting width.
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