https://www.putzmeister.com/documents/4321622/0/Putzmeister-Service-Hydraulic-fluid-document-EN.pdf/f4211eb3-0ec5-a753-5c7b-b2c7050d003f
https://www.putzmeister.com/documents/4321622/0/Putzmeister-Service-Hydraulic-fluid-document-EN.pdf/f4211eb3-0ec5-a753-5c7b-b2c7050d003f