Liugong CLG856H Hydraulic Pump

Liugong CLG856H Hydraulic Pump

4 week ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 4 year year

Product details

I. Product Overview

• Model: HA10VO88 (Domestic equivalent to international brands like Rexroth’s A10VO series)

• Applicable Machine: Liugong CLG856H Wheel Loader (may extend to models like 862H, 870H depending on configuration)

• Function: Serves as the main hydraulic pump for the loader, supplying high-pressure hydraulic oil to working devices (e.g., boom, bucket, steering system) for lifting, tilting, and steering operations.

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II. Technical Specifications

1. Displacement & Flow Rate

• Displacement: 88 cm³/rev (theoretical value; actual flow depends on rotational speed).

• Rated Flow: Approx. 200–250 L/min (based on CLG856H engine speed of 2,200 rpm; refer to pump’s speed-flow curve for details).

• Pressure Ratings:

• Rated Pressure: 250 bar (may withstand higher short-term pressure in some operating conditions).

• Peak Pressure: 300–350 bar (depending on system design safety factor).

2. Structural Design

• Axial Piston Pump with Swashplate: Adjusts displacement via swashplate angle for variable control.

• High-Pressure Sealing: Utilizes advanced sealing technology between pistons and swashplate to minimize internal leakage and improve efficiency.

3. Control Modes

• Load-Sensing Control (LS): Automatically regulates pump output flow based on system load demands, reducing energy consumption.

• Constant Power Control (Optional): Prevents engine overload by ensuring hydraulic system power matches engine output.

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III. Performance Features

1. High Reliability

• Core components (e.g., pistons, swashplate, bearings) are made of high-strength materials for heavy-duty applications.

• Passed Liugong’s rigorous durability tests (e.g., 5,000-hour continuous operation validation).

2. Energy Efficiency

• Variable control technology reduces overflow losses, saving 15–20% energy compared to fixed-displacement pumps.

• Optimized for fuel efficiency when paired with Liugong CLG856H’s Cummins engine.

3. Strong Adaptability

• Operating Temperature Range: -20°C to +50°C (optional cold-start package available for extreme cold environments).

• Contamination Resistance: Requires filtration精度 (filter precision) ≤25μm, compatible with varying oil qualities in domestic markets.

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IV. Compatible Models & Replacement Options

1. Original Factory Fit

• Liugong CLG856H: Standard hydraulic pump configuration (may be labeled as "11C2956" or "HA10VO88D" in some batches).

• Other Models: Can replace main pumps in Lonking 876, Shantui 652/655 loaders (verify port dimensions and pressure ratings).

2. International Brand Alternatives

• Replaces Rexroth A10VO88, Kawasaki K3V88, etc. (note differences in mounting dimensions and control interfaces).

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V. Maintenance & Troubleshooting

1. Routine Maintenance

• Oil Cleanliness: Replace hydraulic oil and filters regularly (recommended every 500 hours).

• Temperature Monitoring: Excessive oil temperature (>80°C) may cause pump wear; check radiator or cooling system.

• Abnormal Noise: Sharp noises may indicate piston wear or bearing damage; immediate inspection required.

2. Common Faults

• Insufficient Output Pressure: Check for clogged suction filters or stuck swashplate angle adjustment mechanism.

• Leakage: Focus on shaft seals and end cover gaskets; replace if aged.

• Variable Control Failure: May be caused by stuck control valves or sensor malfunctions; requires professional debugging.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 Audited supplier

4 year

Address: Ningbo, China

Main Product: hydraulic motor, gear box , hydraulic pump, hydraulic valve , hydraulic winch, hydraulic system

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