Interroll DL Series - 10.5.2 Hygienic Cleaning

Version 1.2 (08/2022) en
Translation of original operating instructions 47 of 64
Maintenance and cleaning
10.5.2 Hygienic cleaning
NOTICE
Risk of damages to the drum motor due to improper cleaning!
¾ Never use an acidic cleaner together with a chlorinated cleaner since the resulting dangerous chlorine gases
can damage stainless steel and rubber components.
¾ Donotapplyanyacidiccleanerstoaluminumorzinc-platedcomponents.
¾ Avoid temperatures over 55 °C so that no proteins can be deposited on the surface. Remove greases at
lower temperatures and with suitable cleaners.
¾ Avoid water pressures over 20 bar so that no aerosols are created.
¾ Maintainadistanceof30cmbetweenthenozzleandthesurfacetobecleaned.
¾ Donotdirectthenozzledirectlyontothelabyrinthandtheseals.
1. Wipeolarger,loosecontamination.
2. Pre-clean with water (20 bar, 55 °C).
3. Directthenozzledownontothesurfaceatanangleof45°.
4. For a more thorough cleaning, clean seals, grooves and other recesses with a soft brush.
5. In case of heavy contamination, use a soft brush and/or a plastic scraper together with spraying water.
6. Clean for approx. 15 minutes using a cold alkaline or acidic agent.
7. Sprayocleanerwithwater(20bar,55°C).
8. Disinfect with cold agents for approx. 10 min.
9. Sprayowithwater(20bar,55°C).
10. After cleaning, check surfaces, grooves and recesses for residues.
For scale deposits, we recommend the use of an acidic cleaner 1 to 4 times per month. If a cleaning with
chlorine is permissible, we recommend alkaline cleaners and disinfectants. In this case, the last disinfecting
step can be omitted depending on the degree of contamination.
Observethecorrespondingcerticatesatwww.interroll.com.