Trouble examples and Corrective actions
268
Chapter 10
RR05
2.
Trouble examples and Corrective actions
2-1.
Thread breakage is highly visible.
If the followings seem to cause the trouble, please ask the distributor for information.
(a)
The gap between rotary hook and rotary hook support is narrow. Timing between needle and rotary
hook is too early or too late. Scratch, abrasion of rotary hook.
(b)
A clearance between needle and hook point is not suitable. Bad adjustment of lower dead point
and/or upper dead point of needle bar
(c)
The play of rotary hook shaft is big in back and forth direction. There is a play on the fringe of the
frame.
(d)
Rotation of the main shaft is not smooth. Abrasion/breakage of neighboring parts of take-up lever
drive and/or needle bar drive
(e)
Play of needle bar case (in right and left direction) is big.
2-2.
Needle breaks
If the followings seem to cause the trouble, please ask the distributor for information.
(a)
Abrasion of needle catcher of rotary hook. A clearance between needle and hook point is not suitable.
(b)
Bad needle location. Play of needle bar case (in right and left direction) is big.
(c)
The floor vibrates. There is a play on the fringe of frame.
Cause
Troubleshooting
Bad thread tension
The following value is a rough standard.
Adjust tension according to the condition.
Upper thread: 120 to 140g, under thread: 20 to 30g
Quality of thread is bad. Poor thread flow
Use good quality thread. Spray silicone.
Direction of needle is bad or needle bents.
Adjust to face to the front or to the right a bit. Replace.
Applique glue is stuck on needle.
Remove adhered glue.
Contamination, run-out of oil of rotary hook
Clean and lubricate the machine.
There are many fine stitches of 0.5 mm or less in
design data.
Remove fine stitch(es).
The fabric is lifted too much against the needle
plate. The fabric touches the needle plate too
much.
Stretch the fabric again so that it touches needle plate
lightly.
Run-out of oil of needle bar
Lubricate.
There is a scratch on the thread course.
Grind a scratch with sandpaper etc. Replace.
Bad height of presser foot
Perform adjustment so that height fits to fabric/material.
Cause
Troubleshooting
Bad thread tension
Adjust tension.
Density of design data is very high.
Correct data. Delete unnecessary underlay stitching.
The material is too thick or hard.
Use material suitable for embroidery.
Bobbin is deformed and it touches the needle.
Replace the bobbin.
Bad quality of needle, mismatching to
embroidery condition
Use good quality needle. Use needle that fits to embroidery
condition.
Vibration of the machine is big.
Adjust leveling.
Summary of Contents for TLMX Series
Page 23: ...Inspection before starting work 8 Chapter 1 ...
Page 59: ...Attachment 44 Chapter 2 ...
Page 113: ...Embroidery starts 98 Chapter 4 ...
Page 145: ...Operation and setting for embroidering 130 Chapter 5 2 Select the value 3 RR05 ...
Page 209: ...Other functions that must be remembered 194 Chapter 6 ...
Page 231: ...To resister frame position 216 Chapter 7 ...