Interroll DL Series - 10.5.1 Cleaning the Drum Motor with Pressure Washer

46 of 64
Version 1.2 (08/2022) en
Translation of original operating instructions
Maintenance and cleaning
10.5.1 Cleaning the drum motor with pressure washer
Only drum motors made of stainless steel with IP66 seals are suitable for cleaning with a pressure washer.
NOTICE
Seal not tight due to excessive pressure!
¾ Donotholdthenozzleinapositiondirectedontotheshaftsealwhencleaningthelabyrinthortheseal.
¾ Movethenozzlecontinuouslyandevenlyovertheentiredrummotor.
Observe the following when using a pressure washer:
• Ensurethatthedistancebetweenthehigh-pressurenozzleandthedrummotorisatleast30cm.
• Observe the maximum pressure from the table below.
• Performthepressurewashingofthedrummotoronlyduringrunningoperation;otherwise,watercouldenterorthe
seals could be damaged.
The maximum value for cleaning temperature and pressure depends on the seal type.
Seal type Max. temperature Max. water pressure Comment
NBR - IP66 80 °C 50 bar For general use
NBR IP66 seal that can be
re-lubricated
60 °C 50 bar DL series for wet and
food-grade applications
• Re-lubricate DL series
motors after cleaning