JUKI MS-3580 Serie Manual De Instrucciones página 122

Trouble (1)
5. Stitch skipping 5-1) The looper does not
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Trouble (2) Cause (1)
1-A) Looper
scoop the needle
thread.
1-B) Needle
1-C) Needle thread
holder
1-D) Needle thread
adjusting path
1-E) Needle height
1-F) Threading
1-G) Needle heat
1-H) Lower looper
adjustment
1-I) Rear needle guard
Cause (2)
A-1) The blade shape
is not proper.
B-1) Needle bent or
wrong mounting
direction
C-1) Improper loop
timing due to no
use of the needle
thread holder
D-1) Height of the
thread path is
insuffi cient.
E-1) Improper needle
bar height
F-1) Threading error
G-1) This problem
occurs in a
thick area of the
denim material
cloth.
H-1) Improper clearance
or excessive
looper return
I-1) Improper height
or contact level
− 50 −
Check and corrective measures
Regular parts are used
Replacement of needles
and installation of the
needle hole section in the
front shall be carried out
correctly.
UY130GS
Use the needle thread
support plate to adjust the
height properly.
Refer to the adjustment
values.
Adjust the height properly.
Refer to the adjustment
values.
Adjust the height properly.
Refer to the adjustment
values.
Refer to "#- 5. How to
conduct threading".
Use needle cooling air.
Refer to the adjustment
values.
Reduce the looper return.
Refer to the adjustment
values.
Height of main feed dog
and longitudinal position
check
Refer to the adjustment
values.