Excavator Parts AP2D36 Cylinder Block&Valve Plate 2.412-00125 For Hydraulic Pump Parts

Excavator Parts AP2D36 Cylinder Block&Valve Plate 2.412-00125 For Hydraulic Pump Parts

Adjust swash plate position and alter pump displacement
Connected mechanically with the swash plate, the servo piston creates linear reciprocating movement under pilot pressure to adjust swash plate inclined angle:
A bigger swash plate angle produces larger pump displacement and higher flow output.
A smaller swash plate angle produces smaller pump displacement and lower flow output.

Implement load detection and power regulation
With reference to system pressure feedback signals, it self‑adjusts swash plate angle to realize total power and negative flow control, guarding against engine stall and matching excavation load demands.

Sustain stable displacement relying on position feedback
The servo piston features a feedback linkage that sends position information to the control spool, establishing closed‑loop regulation and quick stabilization of target flow capacity.

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