Operation Manual

Operating Instructions 650-10 - 02.0 - 10/201524
Fig. 7: Main tensioner
You set the needle thread tension as follows:
1. Set the main tensioner (4) via the control panel so that an even
stitch pattern is achieved.
When the thread is cut, the main tensioner (4) is opened
automatically.
4.5 Setting the thread regulator
The thread regulator regulates the amount of needle thread re-
quired for forming the stitch. An optimum sewing result is possible
only when the thread regulator is exactly adjusted.
Proper setting
With the proper setting the needle thread loop must slide over the
thickest part of the hook at low tension.
(4) - Main tensioner
④
WARNING
Risk of injury from moving parts!
Crushing is possible.
Switch off the machine before setting the thread
regulator.