Operation
Operating Instructions 650-10 - 03.0 - 08/2016 19
4 Operation
4.1 Preparing the machine for operation
Complete the following steps in preparation of sewing before 
starting to work:
• Changing the needle
•
Threading the needle thread
• Threading the looper thread
4.2 Switching on and off the machine
The machine is switched on and off by pressing the main switch (1) 
on the controller.
Fig. 2: Switching on and off the machine
WARNING
Risk of injury from moving parts, cutting and 
s
harp parts!
Crushing, cutting and punctures are possible.
If possible, make preparations only when the 
mach
ine is switched off.
(1) - Main switch