High-capacity hydraulic pumps delivering 60 gallons per minute are standard in modern articulated tractors. Learn how to calibrate the swashplate angle to prevent system cavitation.

These variable-displacement axial piston pumps are the heart of closed-center load-sensing (CCLS) hydraulic systems. When an implement demands flow, the compensator valve signals the pump's swashplate to increase its angle, instantly delivering the required volume of oil at pressures exceeding 3,000 PSI. If the hydraulic fluid becomes contaminated with dirt or water, the brass slipper pads that ride on the swashplate will gall and tear apart. Regular fluid analysis and changing the 10-micron return filters are the only ways to ensure this $5,000 component survives its intended 10,000-hour lifespan.