Kemper Dusty Evo Notice D'utilisation page 66

Regular inspection and servicing have a positive effect on the reliable
functioning of the product.
Observe the warning notices for servicing and troubleshooting in the
"Safety" chapter.
Maintenance of the product is essentially limited to visual inspection and
checking for damage, signs of wear and leaks.
WARNING
Skin contact with dust particles, etc. may cause skin irritation in sensitive
persons.
Serious injury to the lungs and respiratory tract is possible!
To avoid contact with and inhalation of dust particles, wear disposable
gloves and disposable respiratory protection, Class FFP2 or higher.
When cleaning, the release of dangerous dust particles must be avoided,
so that bystanders are not injured.
NOTE
Do not clean the product with compressed air. This may result in dust
particles getting into the ambient air.
Always ensure there is adequate lighting and ventilation for maintenance
tasks.
7.2.1 Checking/changing the dust collection container
According to the use, but at least once a month, the fill level of the dust
collection container must be checked and changed if necessary (approx.
2/3 filled).
The time until dust collection container must be replaced depends on the
type and quantity of the dust particles that occur. The operator must check
the level by hand at regular intervals to avoid the dust collection container
becoming overfull.
The dust collection container must always be exchanged in good time to
avoid contamination of the surroundings.
The product must be switched off during a change or when checking the
fill level.
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