Bomag BW135AD-5 / BW138AD-5 / BW138AC-5 hydraulic schematic manual (Stufe 3a) — Function 456 diagrams for 2017 models.
Detailed hydraulic circuit schematics and component maps for Bomag BW135AD-5, BW138AD-5 and BW138AC-5 (Stage/Stufe 3a) engines. Includes Function 456 layout, pump/valve/cylinder connections, flow paths, pressure settings, connector pinouts, and service notes to aid diagnostics, maintenance and parts identification. Ideal for technicians, fleet managers and engineers needing precise wiring of hydraulic systems, troubleshooting guidance, and reference for repairs or retrofits.