Adjusting Hydraulic Hammer Flow on Volvo ECR58 Plus

[MikePhua]

Volvo’s Compact Excavator Line and the ECR58 Plus
Volvo Construction Equipment, a division of the Swedish industrial giant AB Volvo, has been a key player in compact excavator development since the early 2000s. The ECR58 Plus, introduced around 2010, was designed to meet the growing demand for zero-tail swing excavators in urban and confined job sites. With an operating weight of approximately 5.8 metric tons and a powerful hydraulic system, the ECR58 Plus became a popular choice for contractors needing versatility, precision, and compatibility with a wide range of attachments—including hydraulic hammers.
Core Specifications

• Operating weight: ~5,800 kg
  
• Engine: Volvo D3.1D, 4-cylinder diesel
  
• Power output: ~47 kW (63 hp)
  
• Hydraulic flow (standard): ~100 l/min
  
• Auxiliary hydraulic circuit: Adjustable, typically 60–85 l/min
  
• Tail swing: Zero-radius
  
• Control system: Electro-hydraulic with proportional joystick control
  

The ECR58 Plus was engineered for trenching, demolition, and utility work. Its auxiliary hydraulic system supports attachments like breakers, augers, and compactors, but proper flow adjustment is critical to avoid damage or underperformance.
Terminology Notes

• Auxiliary Hydraulic Flow: The volume of hydraulic fluid directed to attachments, measured in liters per minute (l/min).
  
• Hammer Flow Requirement: The optimal hydraulic flow needed for a breaker to operate efficiently, typically specified by the manufacturer.
  
• Proportional Control: A system where joystick movement corresponds to variable hydraulic output, allowing fine control.
  
• Service Mode: A diagnostic setting that allows technicians to adjust parameters like flow rate and pressure.
  

Adjusting Flow for Hydraulic Hammer Use
To operate a hydraulic hammer on the ECR58 Plus, the auxiliary flow must be set between 60–85 l/min depending on the hammer model. Exceeding this range can cause overheating, seal failure, or premature wear. Insufficient flow leads to weak impact force and inefficient breaking.
Adjustment steps:

• Enter service mode via the operator display or diagnostic interface
  
• Navigate to auxiliary hydraulic settings
  
• Select the appropriate circuit (typically AUX1 or AUX2)
  
• Adjust flow rate using the interface dial or keypad
  
• Confirm settings and test hammer performance under load
  

Some models may require dealer-level software (e.g., Volvo Prosis or MATRIS) to access advanced parameters. In regions where dealer support is limited, operators often rely on manuals or peer-sourced guides to perform adjustments.
Field Anecdote and Practical Insight
In Montenegro, an operator needed to adjust flow for a hydraulic hammer requiring 75 l/min. Without access to a manual, he contacted a technician in Edmonton who had previously worked on the same model. Using a screenshot of the control panel, they identified the adjustment menu and successfully tuned the flow. The hammer performed flawlessly afterward, and the operator later documented the process for future reference.
Common Issues and Solutions

• Hammer Underperforming: Check flow settings and confirm compatibility with the excavator’s output. Use a flow meter if available.
  
• Overheating Hydraulic Oil: Reduce flow or install a cooler. Monitor oil temperature during extended use.
  
• Joystick Lag or Delay: Inspect proportional valve and electrical connections. Clean contacts and recalibrate if needed.
  
• No Flow to Attachment: Verify solenoid activation and check for clogged filters or damaged hoses.
  

Preventive Maintenance and Best Practices

• Inspect hydraulic hoses monthly for wear or leaks
  
• Replace filters every 500 hours or as per service schedule
  
• Use OEM-grade hydraulic oil with correct viscosity
  
• Test auxiliary flow annually with calibrated equipment
  
• Keep a record of attachment specs and flow requirements
  

Volvo’s Support Ecosystem and Diagnostic Tools
Volvo offers diagnostic platforms like Prosis and MATRIS for service technicians. These tools allow flow calibration, fault code retrieval, and performance logging. While access may be limited to authorized dealers, some operators obtain legacy versions or collaborate with service centers for remote support.
Conclusion
Adjusting hydraulic flow on the Volvo ECR58 Plus is essential for safe and efficient hammer operation. With proper settings, the machine delivers consistent impact force and protects both the excavator and attachment from damage. Whether working in urban demolition or rural trenching, understanding the ECR58’s hydraulic behavior ensures productivity and longevity. In compact equipment, precision isn’t just a feature—it’s a necessity.