Recommended: Komatsu Super Hydraulic Oil (ISO VG 46) or equivalent (e.g., Mobil DTE 25).
Viscosity Range: 10–400 cSt (ensure proper lubrication across temperatures).
Fluid Temperature:
Operating Range: -20°C to +80°C (-4°F to +176°F).
Avoid prolonged operation near temperature extremes to prevent oil degradation.
Filtration:
Required Filter Rating: ≤25 microns (to protect internal gears from contamination).
Functional Notes
System Role:
Commonly used as a steering pump or auxiliary pump in WA200-6 loaders, providing fluid power for steering cylinders, transmission shift valves, or bucket/boom operations.
Design Features:
External gear design: High efficiency and durability for medium-pressure applications.
Seal Material: Nitrile rubber (NBR) or fluorocarbon (FKM) for compatibility with mineral oils.
Replacement Tips:
Always verify the rotation direction and port configuration before installation.
Flush the hydraulic system and replace filters when replacing the pump to avoid contamination.
