Displacement: Usually in the range of 30 - 50 cm³/rev. A larger displacement can provide sufficient flow to meet the high - power requirements of the D85 bulldozer's hydraulic system.
Rated Pressure: 20 - 25 MPa (2900 - 3625 psi). This is the continuous operating pressure that ensures the pump can stably supply hydraulic power under normal working conditions.
Peak Pressure: Can reach 30 MPa (4350 psi) to cope with short - term high - load working conditions, such as when the bulldozer encounters large - resistance objects during operation.
Rated Speed: 1800 - 2200 rpm, which is adapted to the engine speed of the D85 bulldozer. For example, if the D85 is equipped with a Komatsu SAA6D140 engine, its rated speed is around 2000 rpm, and the pump's rated speed needs to match the engine's output speed to ensure efficient power transmission.
Maximum Speed: Generally, it does not exceed 2500 rpm. Prolonged operation at high speeds should be avoided to prevent overheating and excessive wear of the pump.
Rotation Direction: Usually counter - clockwise (CCW) when viewed from the drive end, but it is recommended to verify with the specific model of the D85 bulldozer or refer to the equipment manual.
Ports: The inlet port is usually SAE 12 (1 - 1/8" NPT), and the outlet port is SAE 10 (3/4" NPT). The larger - diameter inlet port is conducive to improving the oil - suction capacity and ensuring a sufficient oil supply to the pump.
Weight: Approximately 25 - 35 kg. The specific weight may vary slightly depending on the specific design and material of the pump.
