Instruction manual

9. Maintenance
Caution: Danger of injury!
Turn off the main switch !
Maintenance may only be carried out with the machine switched off!
Maintenance work must be carried out no less frequently than at the
intervals given in the tables (see ”operating hours” column).
Maintenance intervals may need to be shorter w hen processing
heavy-shedding materials.
9.1 Cleaning and testing
A clean machine is a trouble-free machine!
Maintenance w ork Explanation Operating
to be carried out hours
Machine head
- Remove lint, pieces of
thread and other debris
Places in special need of cleaning:-
- Clean the area under the needle plate
from lint, pieces of thread.
You can do it with an air blow gun.
- Area around the hook
- Clean under the bobbin braking spring 1 from
lint.
Lift the s pring s lightly for example with
a needle and blow it.
- Needle thread tensioner
- Thread trimmer
8
Sew ing drive
- Check the condition and the
tension of the toothed belt.
It must be possible to depress the toothed belt
by about 10 mm when pressing it with a finger at
its mid-point.
160
23
GB
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