
Part Number1: 07440 - 72202
Application1: Komatsu D155A - 2 bulldozer, and also applicable to D150A - 1, D155A - 1, D155C - 1, D155S - 1, D155C - 1P, D155C - 1P - ZZ models.
Type6: Hydraulic steering pump
Manufacturer: Usually Komatsu original factory or authorized supplier
Technical Parameters
Displacement: The specific value is subject to the actual product, generally within the range of 10 - 30
cm
3
/rev
.
Rated Pressure: Around 10 - 15 MPa.
Peak Pressure: Can reach 15 - 20 MPa.
Rated Speed: About 1500 - 2000 rpm.
Maximum Speed: 2500 - 3000 rpm.
Inlet Port Size: Usually in SAE or NPT thread specifications, such as 1 - 1/4" NPT.
Outlet Port Size: Similar to the inlet port, may be 1" NPT.
Rotation Direction: Clockwise or counterclockwise as viewed from the drive end.
Weight3: Approximately 20 kg.
Working Conditions
Hydraulic Oil: Petroleum - based hydraulic oil that meets ISO or DIN standards, such as ISO VG 32 or VG 46.
Oil Temperature Range6: -20°C - 80°C.
Viscosity Range6: 10 - 400 cSt.



