Hydraulic Pump Spare Parts Repair Kit CYLINDER BLOCK For Rexroth AP2D25 Excavator Pump Parts

Hydraulic Pump Spare Parts Repair Kit CYLINDER BLOCK For Rexroth AP2D25 Excavator Pump Parts

Actuate the swash plate and adjust pump displacement
Linked to the swash plate, the servo piston moves linearly back and forth under pilot oil pressure to alter the tilt angle of the swash plate:
A greater swash plate angle raises pump displacement and delivers higher output flow.
A smaller swash plate angle lowers pump displacement and reduces output flow.

Implement load sensing and power regulation
It modifies the swash plate angle automatically based on system pressure feedback to achieve total power control and negative flow control. This avoids engine stall and adapts to excavation load demands.

Provide position feedback for steady displacement
Equipped with a feedback linkage, the servo piston relays its position to the control spool, creating closed‑loop regulation to rapidly stabilize output at the target flow.

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