CAT Excavator 225B 229 Hydraulic Schematic Manual SENR3466-00 1987 — detailed hydraulic schematic and service manual for 225B/229 models.
Comprehensive 1987 OEM hydraulic circuit diagrams (SENR3466-00) for CAT 225B and 229 excavators, including pump, valve, cylinder and pilot circuit layouts, component IDs, flow paths and pressure data. Ideal for technicians, restorers and fleet managers performing diagnostics, repairs, maintenance or parts cross-referencing. Use this manual to troubleshoot leaks, interpret schematic symbols, plan hydraulic overhauls and ensure accurate reassembly to factory specifications.