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9.
Maintenance
9.1
Cleaning and checking
Maintenance work
to be carried out
Machine head
- Remove lint, pieces of
thread (e.g. with an air
blow gun)
- Remove lint, pieces of
thread (e.g. with an air
blow gun)
- Check the hook
38
Caution! Risk 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 when processing
heavy-shedding materials.
A clean machine is a trouble-free machine.
2
4
3
6
5
1
7
Explanation
Places in special need of cleaning:
- Area under the throat plate, feeding
roller (2), top roller and its surrounding.
- Area around the hook (1)
- Bobbin housing (6)
- Thread trimmer
- Area around the needle
CAUTION !
Be sure to hold the blow air gun so that no
sewing dust is blown into the oil sump.
Remove the throat plate. Remove the thread
puling knife (4). Remove the hook plunger
ring (5). Remove the bobbin housing (6) from
the hook. Clean the inner area of the hook.
Clean the bobbin housing - particularly look
for glue remainder on the surface (7).
Check the clearance on the track between
bobbin housing (6) and the hook (1)
Operating
hours
8
20
500
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