Caterpillar 365C/374D Hydraulic Pump A11VO260/A20VLO260

5 month ago

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4 year

Product details

1. Applicable Models

• Caterpillar 365C: A large-scale excavator designed for heavy-duty operations in mining and earthmoving projects.

• Caterpillar 374D: An upgraded model with higher power and efficiency, commonly used in large-scale infrastructure projects.

2. Hydraulic Pump Model Breakdown

A11VO260

• Type: Axial piston variable-displacement pump (swashplate design).

• Displacement: 260 cm³/rev (per revolution).

• Features:

• High-pressure, large-flow design for heavy-duty applications.

• Variable displacement control adjusts output based on load, optimizing energy consumption.

• Used in main pump systems to power travel, swing, boom, and bucket operations.

A20VLO260

• Type: Load-sensing variable-displacement pump (with pressure compensation).

• Displacement: 260 cm³/rev.

• Features:

• Load-sensing control automatically adjusts output pressure and flow based on system demand.

• Energy-efficient operation reduces waste.

• Ideal for precise hydraulic control (e.g., swing, boom, and attachment movements).

3. Technical Parameter Comparison

【表格】

Parameter A11VO260 A20VLO260

Type Axial piston variable pump Load-sensing variable pump

Control Method Manual/electronic variable Load-sensing + pressure compensation

Rated Pressure 350 bar (max 400 bar) 350 bar (max 400 bar)

Speed Range 600–2200 rpm 600–2200 rpm

Application Main pump system (high flow) Precision control (e.g., swing, boom)

4. Core Functions

• Power Output: Supplies hydraulic power for excavator movements, including travel, swing, boom lifting, and bucket digging.

• Energy Optimization:

• A11VO260 reduces energy waste through variable displacement.

• A20VLO260 further enhances efficiency via load-sensing technology.

• Reliability: Designed for harsh conditions (e.g., mining, extreme temperatures).

5. Common Failures & Maintenance

• Failure Symptoms:

• Pump leakage (seal degradation).

• Unstable pressure (variable mechanism issues).

• Abnormal noise (bearing or piston wear).

• Maintenance Tips:

• Replace hydraulic oil and filters regularly (every 2,000 hours).

• Check pump mounting bolt tightness.

• Avoid prolonged overloading.

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