Blue Excavator Hydraulic Pump A8VO107 For Doosan Sanyi

This high-precision hydraulic main pump assembly adopts Bosch Rexroth's classic A8VO series double high-pressure plunger pump type, covering four core displacements: A8VO107, A8VO140, A8VO160, and A8VO200. As the absolute power heart of the entire vehicle system, this series of assemblies is specially designed for SANY and Doosan's 20 to 45 ton core main excavators, and adopts the industry standard "Rexroth Blue" anti rust coating. The product is designed based on first principles for heavy-duty fluid dynamics optimization, ensuring absolute certainty of high-pressure and high flow output. Taking A8VO140 as an example, the physical dimensions of the packaging are about 780mm × 430mm × 460mm, and the overall net weight is about 165kg (different displacement sizes and weights increase according to the original factory standards). Standard position precise docking.

"Extreme cleaning and torque tightening: Noise reduction and dust removal treatment are required for unpacking and lifting environments. All high-pressure oil pipes and pilot feedback pipes must be thoroughly cleaned with specialized cleaning agents before being connected to a new pump. Tighten bolts using torque wrenches strictly according to the original factory standard torque for symmetrical and phased cross tightening.

Forced oil filling (core pit avoidance): After the main pump is lifted into place and before starting the engine, clean hydraulic oil must be filled from the suction/discharge port on the top of the main pump. It is strictly prohibited to start dry grinding, otherwise the internal dual plunger components will undergo irreversible physical erosion within 3 seconds of ignition.

Low pressure transition and exhaust: After the first ignition, the engine must be kept idling and running at low pressure for 10-15 minutes for automatic exhaust and thermodynamic adaptation of the system. The workload can only be gradually applied after the oil temperature is normal and the bubbles are cleared."