JUKI AMS-221EHL, Руководство пользователя

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1. Thread comes off at the start of 1-1) Stitch skipping at the start of 1-A) Too much clearance between Set the clearance at 0.05 to 0.1mm between the needle and the hook.
sewing sewing needle and hook.
Set up “soft start” at the beginning of sewing.
1-B) Penetration registance of the Use a thinner needle. (Lower the needle count to be
thread against the cloth is small. used.)
1-2) Length of thread remaining 2-A) Tension controller No. 1 provides Properly adjust the tension controller No. 1.
at the needle is not sufficient. an excessive tension.
2-B) Floating of the AT thread Adjust the amount of AT thread tension floating.
tension disc is insufficient.
2-C) Stroke of the thread take-up Adjust the stroke of the thread take-up spring.
spring is excessive.
2-D) The thread take-up spring Adjust the thread take-up spring tension.
tension is insufficient.
2-E) Level difference between the Adjust the height of the counter knife.
needle hole guide and the
counter knife is excessively high.
2-F) Needle thread tension is high Adjust the needle thread tension.
and the thread is excessively
stretched.
2-G)Thread spreading section of Polish the thread spreading section of the moving
the moving knife has scratches. knife with buff or replace the knife.
1-3) Length of bobbin thread re- 3-A) Level difference between the Adjust the height of the counter knife.
maining is not sufficient. needle hole guide and the (Otherwise, widen the gap.)
counter knife is excessively high.
3-B) Lower face of the needle hole Polish the needle hole guide with a buff or replace it.
guide has scratches.
3-C) Thread spreading section of the Polish the thread spreading section of the moving
moving knife has scratches. knife with buff or replace the knife.
3-D) Shuttle upper spring has Polish the shuttle upper race with a buff or replace
scratches. it.
3-E) The bobbin thread tension is Adjust the bobbin thread tension.
excessive.
3-F) The bobbin or bobbin case Polish it with a buff or replace it.
has scratches.
Trouble Cause (1) Cause (2) Check and corrective measures
(2) Sewing conditions
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