JUKI AMS-221EHL, Руководство пользователя

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3. Stitch Skipping 3-1) Too much clearance between Adjust the clearance between needle and inner hook.
the needle and the inner hook.
3-2) Inadequate timing adjustment Adjust timing for the needle and the inner hook.
for the needle and the inner hook.
3-3) Inadequate clearance between Adjust the clearance between needle and shuttle driver.
the shuttle driver and the needle
3-4) Material to be sewn is not 4-A) Too much clearance between Adjust the work clamp foot height.
properly stretched. the work clamp foot and
sewing object
Remove the slackness of the sewing object.
3-5) Needle is bent or blunt. Replace the needle.
3-6) Loop of the needle thread Attach the needle with the long groove orienting slightly
falls down. to the right. (Approximately 20 ° )
6-A) Feed timing is too fast. Change the feed timing by the use of the memory switch.
4. Needle thread breakage 4-1) Stratches on the inner hook 1-A) Scratches on section
A
After polishing the blade point of the inner hook with
(Contact of the inner hook with oilstone, polish it with polishing powder. Properly adjust
the needle) the clearance between the needle and the inner hook.
1-B) Scratches on section
B
After polishing the blade point of the inner hook, polish it
(Scratches occur when the with polishing powder.
needle is bent or broken.)
1-C) Scratches on section
C
After polishing the blade point of the inner hook, polish it
(Needle scratches the inner hook with polishing powder.
when removing the inner hook.)
1-D) Scratches on section
D
After polishing the blade point of the inner hook, polish it
with polishing powder.
4-2) Thread enters into the shuttle. 2-A) Position of the shuttle upper Properly adjust the position of the shuttle upper
spring is wrong. spring.
2-B) Blade point section
A
of the Replace the inner hook.
shuttle is round.
2-C) Position of the shuttle is wrong. Properly adjust the position od the shuttle.
2-D) Needle thread tension is too low. Properly adjust the needle thread tension.
Trouble Cause (1) Cause (2) Check and corrective measures
A
To the next page To the next page
A
B
C
D