(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.
9) Installation of thread spreading plate
❷
❼
Largest diameter
❺
The distance from the left end of the
thread spreading knife tip to the left
end of the thread spreading plate
shall be 0 to 0.5 mm.
Standard adjustment
❻
❺
❶
The position of the thread
spreading plate shall be on
the rear side of the thread
spreading knife.
– 59 –
❶
From DDL-900B
Clearance with the
rotary hook:
0.3 to 1.0 mm
❹
When the thread
spreading knife is
moved to the
maximum forward
position, the tip
of the thread
spreading plate
shall not interfere
with the thread
spreading knife.