JUKI MO-2000QVP - Needle Breakage Causes; Skipped Stitches Solutions; Poor Stitch Formation

35
Problem Cause Solution Page
The machine
does not sew:
• 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.
9
9
7
Fabric does
not feed
evenly
• Differential feed is wrongly adjusted.
• Presser foot pressure is too low.
• Check the differential feed setting.
• Adjust the presser foot pressure.
14
15
Thread
breaks
• Thread tension is too tight for the
thread being used.
• The machine is not threaded correctly.
• Needles are incorrectly inserted.
• Wrong needles.
• Reduce thread tension.
• Check the threading.
• Insert needles fully into needle clamp
with at side to the back.
• Use needle system 130/705H or JLx2.
23
17
11
11
Needles
break
• Needles are bent or blunt, points are
damaged.
• Needles are not inserted correctly.
• Fabric was pulled while sewing.
• Replace needles.
• Insert needles fully into needle clamp
with at side to the back.
• Guide fabric gently with both hands.
12
11
--
Skipped
stitches
• Needles are bent or blunt.
• Wrong needles used.
• Presser foot pressure is too low.
• Replace the needles.
• Use needle system 130/705H or JLx2.
• Increase presser foot pressure.
11
11
15
Poor stitch
formation
• Threads are not correctly between the
tension dials.
• Thread has got caught.
• Machine is incorrectly threaded.
• Check if thread is lying between ten-
sion discs.
• Raise the presser foot and pull the
thread.
• Check threading path of each thread.
• Check threading path of each thread.
16
16
17
17
Seams ute
or wave, es-
pecially when
sewing knits
• Fabric was pulled while sewing.
• Presser foot pressure is too tight.
• Differential feed is set incorrectly.
• Guide fabric gently.
• Reduce presser foot pressure.
• Adjust differential feed to N - 2.
--
15
14
Seams puck-
er
• Needle thread tension is too tight.
• Differential feed is set incorrectly.
• Reduce the needle thread tension.
• Adjust differential feed to 0.7 - N.
23
14
Fabric edges
curl
• Too much fabric is in the stitch.
• Thread tension is too tight.
• Stitch selection lever is on roll hem.
• Reduce cutting width.
• Reduce thread tension.
• Set selection lever to overlock.
13
23
15
Trouble shooting guide