Hydrovane SR Operators Manual Hydrovane Rotary Compressors SR900, SR1800, SR6000, SR6500, SR4000, SR4504. Operator's Instruction, Maintenance and Parts Manual as Photographs and Engineering Drawing. Manufacturers: Hydrovane Models: SR SR1800 SR4000 SR4504 SR6000 SR6500 SR900 Contents: Operators Manual Maintenance Manual Parts Manual Other