Adjusting The Looper Thread Trimming - JUKI MEB-3200 Manuel D'utilisation

(9) Adjusting the looper thread trimming

WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
4
5
4
2
3
4
1
At the time of delivery or when the following presser sets are used, use the cloth cutting knife with
the same size as that supplied with the machine. If a cloth cutting knife with different size is used,
the knife unit breakage or the like will be caused.
In the state of the standard delivery of J type, the presser of M set is installed
and that of S set is installed on C type.
The sewing length can be changed as shown below by installing the optional
presser set and moving the installing position of the knife unit only.
3
6
1
7
2
6
7
8
5
3
6
2
■ S and R type (long thread trimming)
Looper thread and gimp trimming is operated
at the position of the feed base origin and the
presser goes up after the trimming.
1) Looper thread and gmp have been adjusted so
that they are separated upward and downward by
thread handlng plate 1 .
2) Looper thread s precsely held between looper
thread clamp fxng plate 2 and looper thread
clamp 3 of the plate sprng and gmp s precsely
held between looper thread clamp fixing plate 2
and gmp clamp 4 of the plate sprng.
3) Adjustment has been performed so that the top
end of counter knfe 6 s algned wth engraved
dot 8 of movng knfe 7 when the stroke of looper
thread trmmng actuatng arm 5 s maxmum.
When the cut end (thread waste) of looper
thread or gimp is clamped with looper
thread clamp 3 or gimp clamp 4 , clamp
failure occurs. As a result, stitch skipping
at the sewing start or defective stitches will
occur. So, remove the thread waste.
■ J and C type (short thread trimming)
When the feed base is manually moved to
the rear until it will go no further, upper knife
lower cover 5 rides on the cloth cutting
knife and remove presser unit 6 .
L o o p e r t h r e a d a n d g i m p t r i m m i n g i s
operated at the position of the feed base
origin after the presser has been lifted.
1) Looper thread and gmp have been adjusted so
that they are separated from the cloth by thread
handlng plate 4 .
2) Drvng lnk 2 s actuated and lower knfe 3 and
upper knfe 1 engage wth each other to perform
thread trmmng.
3) Upper knfe lower cover 5 controls the varaton
of the remanng looper thread when looper thread
comes n contact wth the blade of the movng knfe.
S set : 16 to 26 mm
M set : 24 to 34 mm
L set : 32 to 42 mm