Hydrovane 33-43 Operators Manual Hydrovane Rotary Compressors 33-43pu and 33-43pua. Operator's Instruction, Maintenance and Parts Manual as Exploded-component Pictures with Electrical Schematic. Manufacturers: Hydrovane Models: 33-43 33-43pu 33-43pua Contents: Operators Manual Maintenance Manual Parts Manual Electrical Diagrams