5920901101_EN_PC5xx-6xx_VARIO_select_Serie_V1.0_280618Cleaning and maintenance7.2.3Clean or replace molded PTFE hosesMaintenance provides the opportunity to check the componentsof the Pumping unit, including the hoses.>Clean the inside of very dirty molded hoses, e.g., using apipe cleaner or similar.>Replace brittle and defective molded hoses.
