PSVL-54CG KYB Hydraulic Pump Multipurpose Yellow Color Fit 305

This high-precision multifunctional hydraulic main pump assembly adopts the classic PSVL-54CG high-pressure plunger pump type from Japan's KYB famous factory. As the power heart of the entire vehicle system, this assembly is specially designed for compact hydraulic excavators, perfectly matching the 5-ton core flagship micro excavator models such as Caterpillar CAT 305 and 305.5, and uniformly using the industry standard engineering yellow (Yellow Color) original factory full rust proof layer. The product is based on first principles for high-power density flow channel optimization design, perfectly carrying the composite load of frequent walking and excavation of small and micro machines, ensuring absolute certainty of high flow power output. The physical dimensions of the product packaging are approximately 480mm × 290mm × 320mm, with an overall net weight of approximately 38kg. The original factory standard hole positions are precisely aligned.

"Extreme cleaning and torque tightening: The installation space inside the small excavation is limited. After unpacking, all high-pressure oil pipes and feedback signal pipes must be thoroughly cleaned with specialized cleaning agents to prevent dust before being connected to the new pump. Bolts must be tightened symmetrically and in stages using torque wrenches strictly in accordance with the original factory standard torque.

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 top of the main pump's air release/oil injection port. It is strictly prohibited to start dry grinding, otherwise the internal rotating 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. After the oil temperature and pressure stabilize, the working load can be gradually applied."