247-7867、358-5004 3-10 ton small excavator hydraulic axial piston pump adaptation 305.5E/306E/307D/E/308E/312D/317

247-7867,358-5004 3-10 ton small excavator hydraulic axial piston pump adaptation 305.5E/306E/307D/E/308E/312D/317

FAQ:

Q1: What is the difference between a main pump and a swing pump in Cat excavators?

A: The main pump supplies hydraulic power for overall movements (boom, arm, bucket), while the swing pump is dedicated to the excavator’s upper structure rotation.

Q2: Can Cat hydraulic pumps be repaired on-site?

A: Minor issues (e.g., seal replacement, fitting tightening) can be fixed on-site, but major damage (e.g., internal cylinder block wear) requires workshop disassembly and repair.

Q3: What is the OEM part number for the swing pump of Cat 374F?

A: The common swing pump part number for Cat 374F is 593-3840, a double piston pump.

Q4: Why does a hydraulic pump experience cavitation?

A: Cavitation is caused by low oil level, restricted suction lines, high oil viscosity at low temperatures, or a clogged suction filter.

Q5: Are Cat hydraulic pump parts interchangeable between different equipment models?

A: Only if the models share the same hydraulic system specifications; always verify with the parts manual or dealer before interchange.

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