Garudan GPS/X-3525 Series, User Manual

Page: 31 / 79

© ANITA
MP03200 EN_180810 31
5 Broken thread
Wrong threading of upper
thread
Make correct threading
Wrong position of needle Set correct position of needle
Damaged needle Exchange needle
Wrong tension of upper or lower
thread
Re- install correct thread
tension
Wrong tension and rigidity of
thread tension spring
Re- install correct tension and
rigidity of thread tension
spring
Damage of hook upper spring
Exchange hook upper spring
and check if theh hook is not
mechanically damaged
6
Thread skips or falls
off the needle eye
Bent needle Exchange the needle
Thread thickness is not in
correspondence with needle size
Exchange the needle
Wrong position of needle
Re- install correct needle
position
Wrong timing of motion
between needle and hook
Re- adjust correct timing
between needle and hook
Too big clearance between
needle and hook
Re- adjust correct clearance
between needle and hook
Wrong tension of thread take -up
spring
Adjust correct tension of the
spring
7
Wrong function of
thread breakage
detector
Thread take - up spring is not well
linked with thread sensor plate
Clean the thread take -up
spring and the sensor plate
and adjust the correct mutual
position
The wire of thread sensor plate
is not well linked
Check the correct wiring
8
Bad quality of thread
tension
Tension of needle thread is not
sufficient
Adjust correct tension of
needle thread
Tension of bobbin thread is not
sufficient
Adjust correct tension of
bobbin thread
Wrong timing of the motion
between needle and hook
Adjust correct timing of the
motion between needle and
hook
9 Trimming error occurs
The cross tension between
movable and fixed knife is loose
Adjust the tension of the
fixed knife
Blades of movable or fixed knife
are damaged or worn -out
Replace movable or fixed
knife
Wrong trimming speed or speed
of the knife
Adjust the trimming speed or
speed of the knife - see
chap.8
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