What should you identify first in a hydraulic schematic? The energy source and stored-energy hazards before tracing flow paths. topicladder equipment hydraulics What does the 'Find the source' step prove? Start with pump, tank, and pressure supply. Check: You can point to where energy enters the circuit. topicladder equipment hydraulics What does the 'Find the actuator' step prove? Cylinder or motor motion is usually the visible work. Check: You can name what moves and in which direction. topicladder equipment hydraulics What does the 'Trace valve states' step prove? Valves change flow paths. Check: You can explain normal, actuated, and blocked paths. topicladder equipment hydraulics What does the 'Find pressure protection' step prove? Relief and checks affect safety and failure behavior. Check: You can identify where pressure is limited or trapped. topicladder equipment hydraulics When would you use `Trace P to A and B to T`? Use it to read a directional valve flow path. Expected signal: Pressure and return paths are identified topicladder equipment command When would you use `Mark cylinder extend and retract ports`? Use it to predict actuator direction. Expected signal: Movement matches the active flow path topicladder equipment command When would you use `Locate relief valve symbol`? Use it to find pressure protection. Expected signal: A pressure limit path returns to tank topicladder equipment command