JUKI MEB-3200 Manuel D'utilisation page 66

1
2
3
5
6
1.2 to 1.5 mm
3
9
8
!3

Approx. 1 mm
4
7
4
4
2
!0
■ J and C type (short thread trimming)
1) The clearance between needle thread trmmng
knfe J 2 and the needle s approxmately 1 mm.
Loosen setscrew 1 and move needle thread
trmng knfe J 2 to adjust the clearance.
2) The overlappng amount between looper thread
presser 3 and the top end secton of throat plate
4 s 0 to 0.2 mm, and adjust so that no clearance
s provded between them.
Loosen adjustment nut 5 and adjust the poston
of the top end of looper thread presser 3 wth
adjustment screw 6 .
3) The heght of needle thread trmmng knfe J 2
s determned by the adjustment value of looper
thread presser 3 . After the adjustment of step
4) below, confrm that clearance A between the
looper thread presser and throat plate 4 and that
B between the looper thread presser and rght
spreader 7 are securely obtaned.
4) The heght of looper thread presser 3 s the
poston where the top end s lowered by 0 to 0.5
mm from the flat face of throat plate 4 .
Loosen setscrew 8 and move needle thread
trmmng knfe adjustment base 9 up or down to
adjust the heght of the top end of looper thread
presser 3 .
When needle thread trimming knife J 2
comes in contact with throat plate 4 and
spreader, right 7 , breakage of components
will be caused. Make sure of the clearances
"A" and "B".
5) The ntal poston of needle thread trmmng knfe
J 2 and looper thread presser 3 s the poston
where the left corner of the top end of looper
thread presser 3 s algned wth the rght corner
of the slot of throat plate 4 .
Loosen adjustment nut !1 and adjust the ntal
poston wth adjustment screw !2 .
6) The operatng poston of needle thread trmmng
knfe J 2 s the poston where needle thread
trmmng knfe J 2 comes out by 1.2 to 1.5 mm
from throat plate 4 when needle thread trmmng
actuatng arm !0 s moved counterclockwse
and stopper B !3 of the needle thread trmmng
actuatng arm comes n confact wth the top
surface of the looper bracket.
When the adjustment s necessay, remove needle
thread trmmng adjustng base 9 once wth
setscrew 8 and adjust the protrudng amount of
!2
stopper B !3 to 1 to 1.2 mm.
Stopper B !3 of the needle thread trimming
actuating arm has double screws.
!1