
3.8
Bobbin winder
....
................................................................................................................................................................... 19
3.8.1
Description
3.8.2
Setting the bobbin winder stop
3.8.3
Setting the friction gear
3.9
Safety clutch
.......................................................................................................................................................................... 20
3.9.1
Description
3.9.2
Setting the disengaging moment
3.10
Indented belt transmission
................................................................................................................................................. 20
3.10.1
Setting the tensioning roller of the indented belt
3.10.2
Replacing the indented belt
3.11
V-belt, motor - head
.............................................................................................................................................................. 21
3.11.1
Tensioning
3.11.2
Replacing the V-Belt
3.12
Driving toothed belt
............................................................................................................................................................... 21
3.12.1
To exchange the driving toothed belt
3.13
Lubrication
.............................................................................................................................................................................. 22
3.13.1
Description
3.13.2
Refilling oil
3.13.3
Multiple oil use
4.
Thread trimming
................................................................................................................................................................................ 23
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 fixed knife
4.7
Setting the retaining spring of the hook thread
4.8
Setting switching of the electromagnets
5.
Material trimming
................................................................................................................................................................ 26
5.1
Setting of the eccentrics (basic)
5.2
Setting of the stop screw
5.3
Setting of the knife side position (against the cutting edge of the throat plate insert)
5.3.1 Setting of the lateral knife position to the sides
5.3.1.1
Fine adjustment of the knife when replacing the used insert by a new one
with the same trimming distance
5.3.1.2
Setting of the knife when using an insert with different trimming distance
5.3.2
Setting of the knife angle with regard to the throat plate insert (crossing)
5.4
Setting of the microswitch of trimming device motor switching-on
6.
Lifting the top roller by electromagnet
....................................................................................................................................... 28
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
................................................................................................................................................. 29
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
......................................................................................................... 30
9.
Drive, control panel, position sensor
......................................................................................................................................... 30
10.
Maintenance (table of operations)
............................................................................................................................................... 31
11.
Setting the machine according to the sewing category
............................................................................................................ 31
11.1
Introduction
11.2
Table of setting the machine according to the sewing category