AA10VSO45DFR1/31R-PPA12N00 A10VSO71DRG/31R-PPA12N00 L10VSO100DFLR/31R-PPA12N00 HA10VSO45DR/31R-PPA12N00 L10VSO45DFR1/31R-PPA12N00 Rexroth variable displacement piston pump

FAQ;

Q3: What leads to overheating of the A10VSO45 pump?

1. Mechanical friction: Increased friction between moving parts such as bearings, pistons, and the cylinder block (often due to wear, lack of lubrication, or misalignment).
2. Fluid friction: Excessive resistance in the oil flow path (e.g., narrow hoses, blocked valves) or turbulent flow inside the pump.
3. Excessive system pressure: A clogged oil filter can cause a pressure buildup in the system, forcing the pump to work under overload and generating excess heat.

Q4: Why does the pump still discharge oil when in the neutral position (zero-displacement setting)?

• Malfunction of the displacement controller: The controller may be misaligned, loose, or damaged. In this case, re-calibrate the controller to the neutral position, tighten loose components, or replace the faulty controller.
• Reduced angle retention force or wear: Insufficient force to keep the swashplate at zero tilt, or excessive wear on the swashplate’s trunnion (pivot point), causing the swashplate to maintain a small tilt angle even in neutral.

Guang Zhou PMD Machinery Parts co ltd is a foreign trade company integrating development, sales, procurement, warehousing, transportation and service. Founded in September 2013, we have more than twelve years of experience in machinery trade.

Our main products are Excavator Hydraulic Spare Parts, Hydraulic Main Pump, Swing Motor, Travel Motor, Final Drive Ass'y, Swing Device Ass'y, Swing Gearbox, Travel Gearbox, Gears, Regulators, Relief Valve, Fan Motor and other hydraulic items with genuine and aftermarket quality. Until now, our products have been exported to more than 198 countries and regions, spreading all over the Middle East, Southeast Asia, Africa, North America, South America, Europe and Oceania with our own brand "Belparts", which is highly praised by foreign customers and enjoys a high reputation.

In the future, to practice our company culture “DO BETTER FOR TOMORROW ”, we will strive to learn more professional knowledge about machinery parts and increase our procurement and sales experience to provide customers with better products and services! What’s more, we will devote to develop a more broad business space together base on long-term, friendly, mutually beneficial and win-win business relations.