Excavator pump assembly VIO70 172187-73100 hydraulic main pump for AP2D36-G2SP-30.07.0-SR

The hydraulic pump converts mechanical energy into hydraulic energy to power the excavator's hydraulic system. When the engine drives the pump shaft to rotate, the internal pistons or gear sets create oil suction and compression processes, forming a high-pressure oil flow. Belparts hydraulic pumps feature variable displacement design that automatically adjusts output flow according to load requirements, achieving high energy efficiency.

Mainly engaged in excavator hydraulic pumps, final drive, travel motors, swing motors, distribution valves,control valve assy,reduction gearbox,cylinder assy and various hydraulic spare parts.
Excavator hydraulic one-stop service, we can provide Komatsu, Hitachi, Kato, Doosan, Hyundai, Sany, Liugong, Sunward Intelligent, hydraulic pumps of various tonnage models, distribution valves, travel assemblies, travel motors, swing motors and hydraulic spare parts.

Hydraulic Oil: The "Lifeline" of Hydraulic Pumps

Hydraulic oil's importance to pumps equals blood's to the human heart. Improper or contaminated oil causes most hydraulic pump failures. Consider these factors when selecting hydraulic oil:

• Viscosity grade: Choose appropriate viscosity (e.g., ISO VG 46) based on ambient temperature. Excessive viscosity increases startup resistance; insufficient viscosity impairs lubrication.

• Oil quality: Select oil meeting manufacturer specifications; avoid cheap, low-quality alternatives.

• Cleanliness: Hydraulic systems demand extremely clean oil—even new oil requires filtration before use.

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Daily Inspection and Maintenance Essentials

Proper maintenance significantly extends hydraulic pump service life:

• Regularly check oil levels: Maintain proper tank levels; low levels can cause pump cavitation damage.

• Monitor oil temperature: Ideal operating temperature ranges between 40-60°C; higher temperatures accelerate oil degradation.

• Listen for abnormal noises: Unusual sounds often signal impending failure, requiring prompt inspection.

• Replace filters regularly: Change hydraulic oil filters per manufacturer recommendations to maintain oil cleanliness.

• Inspect seals: Address external leaks immediately to prevent air entering the system.

GUANGZHOU BELPARTS ENGINEERING MACHINERY LIMITED founded in September 2013, loed in the engineering machinery market in Guangzhou, China. At present , we have one shop, one warehouse and one office as well as a professional team for purchasing, selling, packing, shipping and after-sale service.

Our main products are Excavator Hydraulic spare parts, Hydraulic pump, Swing motor, Travel motor, Final drive, Swing gearbox, Travel gearbox, Control valve,Monitor,Controller, Hydraulic cylinder and other hydraulic items with genuine and aftermarket quality. Until now, our products enjoy high reputation all over the world and have been exported to more than 150 countries and regions, spreading all over the Middle East, Southeast Asia, Africa, North America, South America, Europe and Oceania with its own brand "Belparts" are widely acclaimed by foreign customers.

In February 2023, Belparts Yunnan Tourism Team Building

In April 2024, Belparts participated in the Brazil Construction Machinery Exhibition and visited local clients in Brazil.

In April 2024, Belparts participated in the French Construction Machinery Exhibition and visited clients in France and Spain

In May 2024, Belparts Travel Thailand