JUKI DDL-8000A, Руководство инженера

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(11) Adjusting the thread trimming unit
WARNING :
Be sure to turn the power OFF before the following work in order to prevent personal injury due to
unintentional starting of the sewing machine.
Standard adjustment
4) Adjusting the knife unit
[1] For checking the knife unit
The distance from the
center of needle A to the
tip of the thread spreading
knife ❶ : 5.5 to 6.5mm
Fig.1
Standby state of the knife
❶
❷
A
① The position of the thread spreading knife
and needle
Fig.1-a
② The thread trimming shaft
and the thread trimming drive arm
Fig.1-b
❶
❷
❶
❷
A
Far end of the hole in
loop spreading knife
❶ aligns with the tip of
thread trimming knife ❷
Fig.2
Aligning state of salient portion of
loop spreading knife and thread
trimming knife
❶
❷
A
Fig.3
State of engagement of knife
2 mm to 2.5 mm (S type)
2.5 mm to 3 mm (H type)
❶
❷
A
❹
❸
It touches.