The Relationship Between The Needle And The Looper - JUKI MO-6804S Instruction Manual

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  • ENGLISH, page 40

15. THE RELATIONSHIP BETWEEN THE NEEDLE AND THE LOOPER

WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
(1) The relationship between the needle and the upper looper
4.8 to 5.2 mm
(2) The relationship between the needle and the lower looper
3.7 to 3.9 mm
5.4 to 5.7 mm
3.7 to 3.9 mm
– 19 –
When the upper looper moves to
the leftmost point, the distance
from the looper tip to the center line
of the needle is 4.8 to 5.2 mm. For
2-needle model, the distance from
the looper tip to the center line of the
left needle is 5.4 to 5.7 mm (60H: 5.0
to 5.5 mm).
1) When the lower looper moves to the
leftest point, the distance between the
looper tip and the center line of the nee-
dle should be about 3.7 to 3.9 mm (40H,
44H, 50H and 60H : 4.1 to 4.3 mm). For
2-needle model, the distance is from the
lower looper tip to the center line of the
left needle.
2) Adjust the distance
from the looper tip
to the scarf of the
needle to 0.01 to
0.1 mm when the
lower looper moves
to the right toward
the center line of
the needle (for the
2-needle models,
the left needle is
used as the refer-
ence).

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