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20.2 Cleaning work
20.2.1 Cleaning the machine
Sewing dust and thread remains must be removed every 8 operating
hours using a compressed-air pistol or a brush. When very fluffy material
is used for sewing, the machine must be cleaned more frequently.
Figure 71: Points that need to be cleaned particularly thoroughly
Areas particularly susceptible to soiling:
• Cutter on the bobbin winder for the hook thread (4)
• Area under the throat plate (3)
• Hook (2)
• Area around the needle (1)
Cleaning steps
1. Remove any dust and thread remains using a compressed-air pistol or
86
WARNING
Risk of injury
Switch off the machine at the main power switch before starting
any cleaning work.
Flying dirt particles can get in the eyes, causing injury.
Hold the compressed-air pistol in such a way that no particles
fly near persons.
Take care that no particles fly into the oil pan.
1
2
(1) - Area around the needle
(2) - Hook
a brush.
Maintenance work
4
3
(3) - Area under the throat plate
(4) - Cutter on the bobbin winder
Service manual H867 Version 00.0 - 08/2013
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