A4VSO180LR2D/30RPZB13N00A4VSO71DR/10RVPB25N00A4VSO71DR/10RVZB13N00Rexroth hydraulic piston pump imported from Germany

A1: Modification and over-parameter use are strictly prohibited:

• Prohibition of modification: Do not modify the pump body, control valve, or variable mechanism (e.g., drilling, grinding) without Rexroth's permission, as this will destroy the structural strength and control accuracy
• Prohibition of over-pressure use: Do not exceed 35 MPa peak pressure (even for a short time), which will cause the pump body to burst or internal parts to be crushed
• Prohibition of over-speed use: Do not exceed 1800 rpm, which will cause insufficient lubrication and bearing burnout
• Prohibition of over-temperature use: Do not operate when the oil temperature exceeds 80℃, which will accelerate seal aging and oil deterioration
• Consequences: Modification or over-parameter use will void the warranty and may cause safety accidents (e.g., pipeline explosion, equipment damage)

A2: After-sales support application steps:

• Collect fault information: Record the pump model, operating hours, fault phenomena (noise, pressure, leakage), and maintenance records
• Contact the supplier: If purchased from a distributor, contact the distributor first; if purchased directly from Rexroth, call the official after-sales hotline or submit an application on the official website
• Provide information: Provide the fault information, purchase invoice, and warranty card to the after-sales team
• On-site support: If necessary, apply for on-site service (engineers will carry test equipment to diagnose)
• Repair or replacement: Within the warranty period (usually 1 year), non-human faulty parts will be replaced free of charge; beyond the warranty period, paid repair services will be provided
• Post-service: After the fault is resolved, obtain a maintenance report for future reference

A3: Service life extension measures:

• Maintain oil cleanliness: Use qualified hydraulic oil, replace filters regularly, and avoid impurities entering the system
• Normal operation: Avoid frequent overload, over-pressure, and start-stop
• Regular maintenance: Strictly follow the maintenance schedule to replace vulnerable parts and calibrate the control system
• Correct installation: Ensure shaft alignment, reasonable pipeline layout, and sufficient oil suction
• Suitable environment: Avoid harsh environments (high temperature, dust, water) or install protective devices
• Use original parts: Replace with Rexroth original parts to ensure compatibility and quality
• Training: Train operators and maintenance personnel to master correct operation and maintenance methods