Thread Tension Release Releasing Mechanism - JUKI DDL-9000C-S Instruction Manual

7-5. Thread tension release releasing mechanism

WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
By means of the thread tension release releas-
ing mechanism, sewing can be performed without
❷
slackening the needle thread tension even when the
presser foot is lifted during sewing.
(Even when the presser foot is slightly lifted at the
thick overlapped section by the knee lifter, this
mechanism can prevent the thread tension from
❶
being changed. )
[How to release]
1) Remove the cap in the machine head and loosen
thread tension release changeover screw ❶ using
a hexagon wrench.
2) Fix screw ❶ on the top of thread tension release
changeover plate ❷.
The thread tension disk does not rise even when
the presser foot is lifted, and the needle thread
tension is not loosened. (The thread tension disk
rises only when thread trimming is performed.)
– 75 –
Do not use screw ❶ at any position
other than the top or bottom position of
the thread tension release changeover
plate ❷.
* The screw has been factory-set to the
bottom position at the time of delivery.