3.8 Bobbin winder ....
................................................................................................................................................................. 2 0
3.8.1 Description
3.8.2 Setting the bobbin winder stop
3.8.3 Setting the friction gear
3.9 Safety clutch
......................................................................................................................................................................... 2 1
3.9.1 Description
3.9.2 Setting the disengaging moment
3.10 Indented belt transmission
............................................................................................................................................... 2 1
3.10.1 Setting the tensioning roller of the indented belt
3.10.2 Replacing the indented belt
3.11 V-belt, motor - head
............................................................................................................................................................ 2 2
3.11.1 Tensioning
3.11.2 Replacing the V-Belt
3.12 Driving toothed belt
............................................................................................................................................................. 2 2
3.12.1 To exchange the driving toothed belt
3.13 Lubrication
..............................................................................................................................................................................2 3
3.13.1 Description
3.13.2 Refilling oil
3.13.3 Multiple oil use
4. Thread trimming
............................................................................................................................................................................... 2 4
4.1 Description of the trimming mechanism
4.2 Setting the pickup roller
4.3 Setting the cam
4.4 Setting the fork
4.5 Setting the moving knife
4.6 Setting the height of the fixed knife and of the retaining spring of the lower thread
4.7 Setting the fixed knife
4.8 Setting the retaining spring of the hook thread
4.9 Setting switching of the electromagnets
5. Material edge trimming
................................................................................................................................................................ 2 7
5.1 Description of the trimming mechanism
5.2 Dismantling and assembly of the motor - trimming drive
5.3 Setting of the trimming knife lifting
5.4 Replacement and setting of the trimming knife position
5.4.1 Replacement of the knife and setting of the distance between the knife and the throat plate insert
5.4.2 Setting of the knife position (turning) in the sewing direction
5.4.3 Height setting of the knife
5.5 Setting of engaging and disengaging of the trimming mechanism, of the angaging and carried lever stop
5.5.1 Description
5.5.2 Setting of the engaging lever stop
5.5.3 Setting of the position (shifting) of the carrying lever
5.5.4 Setting of the carried lever stop
5.5.5 Setting of the trimming mechanism engagement
5.5.6 Setting of the torsional moment of the return spring
5.6 Sharpening of the knives
5.7 Sewing without trimming
6. Lifting the top roller by electromagnet
...................................................................................................................................... 3 1
6.1 Description
6.2 Setting the electromagnet pin
6.3 Setting the electromagnet current
6.4 Assembly of the top roller lifting electromagnet
7. Backtacking using electromagnet
................................................................................................................................................ 3 2
7.1 Description
7.2 Electromagnet height setting
7.3 Setting the position of push-buttons
7.4 Change of the function of push-buttons
8. Connecting the electric elements on the machine head
........................................................................................................ 3 3
9. Drive, control panel, position sensor
....................................................................................................................................... 3 3
10. Lighting
............................................................................................................................................................................................ 3 3
10.1 Mounting on the machine head
10.2 Lamp replacement
11. Maintenance (table of operations)
............................................................................................................................................. 3 4
12. Setting the machine according to the sewing category
.......................................................................................................... 3 4
12.1 Introduction
12.2 Table of setting the machine according to the sewing category
