A10VSO45DFR1/31R-PPA12N00-S1648 A10VSO45DFR1/31R-PPA12N00 A10VSO45DR/31R-PPA12 A10VSO45DR/31R-PPA12N00 A10VSO71 DFLR/31R-PPA12N00 Rexroth German piston pump

A10VSO45DFR1/31R-PPA12N00-S1648 A10VSO45DFR1/31R-PPA12N00 A10VSO45DR/31R-PPA12 A10VSO45DR/31R-PPA12N00 A10VSO71 DFLR/31R-PPA12N00 Rexroth German piston pump

FAQ;

1. Basic Product Information

Q1: What type of product is the A10VSO45 pump, and what is its working principle?

Q2: What are the rated pressure and peak pressure of the A10VSO45 pump?

2. Performance & Troubleshooting

Q1: What causes insufficient output flow or no oil discharge from the pump?

• Inadequate suction: This may result from excessive resistance in the suction line (e.g., undersized or overly long hoses), insufficient oil replenishment (e.g., pump speed exceeding the rated limit, low oil level in the tank), air leakage in the suction line (loose connections or damaged seals), or a clogged suction filter.
• Excessive internal leakage: Possible issues include scratches on the valve plate, poor sealing of the check valve in the variable displacement mechanism, or sand holes/abrasion marks on the mating surfaces of the pump body and valve plate.
• Mechanical misalignment: The swashplate may be set to a minimum tilt angle (resulting in minimal displacement), or the motor may be running in the reverse direction (preventing normal piston movement).

Q2: Why does the pump produce vibration and abnormal noise during operation?

• Mechanical issues: Misalignment between the pump shaft and motor shaft (critical for high-speed or high-power applications), damaged bearings in the rotating shaft or faulty couplings, or loose mounting bolts.
• Wear-related noise: Excessive wear of the bushings at the variable displacement head. This often occurs if the pump is started without sufficient oil in the power unit (causing dry friction at the bushing interface) or if the lubricating oil is contaminated with impurities.

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.

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.