CAT Excavator 385B Electrical & Hydraulic Schematic Manual — comprehensive wiring and hydraulic diagrams for maintenance and repair.
Detailed schematic manual for the Caterpillar 385B: circuit layouts, connector pinouts, valve and pump diagrams, sensor/component locations, schematic symbols and wiring harness routing. Includes troubleshooting tips for electrical and hydraulic faults, diagnostic flowcharts, and parts-reference callouts to support technicians, mechanics and workshop teams during service, repair and system diagnostics. Ideal for maintenance planning and field servicing.