Parker PGP517 Series Gear Pump | 3339111513 | PGP517A0440 PGP517B

LIC Hydraulic provides the Parker PGP517 Series, a high-performance gear pump engineered for durability and efficiency in mobile hydraulic environments. Built with a high-strength extruded aluminum body, the PGP517 series—including flagship models PGP517A0440 (3339111513) and tandem configurations like PGP517B (3339121225)—is designed to sustain continuous pressures up to $250\text{ bar}$ ($3625\text{ PSI}$). Featuring pressure-balanced floating bushings and high-precision gear sets, these pumps deliver a long service life with minimal power loss, making them the preferred choice for heavy-duty construction and industrial equipment.

Technical Highlights

• Rugged Construction: High-tensile aluminum housing offers an exceptional power-to-weight ratio and superior heat dissipation.

• Tandem Capability: The PGP517B series allows for multiple sections to be coupled, providing independent flow circuits from a single drive shaft to reduce system complexity.

• Optimized Performance: Internal pressure balancing ensures high volumetric efficiency across the entire speed and pressure range.

• OEM Reliability: PN: 3339111513 and 3339121225 are direct-fit components meeting the most stringent factory specifications.

Application Areas

• Construction Equipment: Reliable power for steering, lift, and auxiliary functions in loaders and graders.

• Material Handling: Primary hydraulic source for forklift masts and reach stackers.

• Refuse Vehicles: High-frequency cycling power for packing and ejection mechanisms.

Expert Maintenance Tips

• Case Filling: Always pre-fill the pump with filtered oil before its first run to lubricate the internal friction surfaces and prevent immediate cavitation damage.

• Alignment Accuracy: For the PGP517A0440 models, ensure the drive coupling is perfectly aligned. Side-loading on the shaft is the primary cause of premature bearing and seal failure.

• Filtration Vigilance: Particulate contamination is the enemy of gear pumps. Maintain an ISO cleanliness level of 18/16/13 to protect the precision-ground floating bushings and tooth profiles.