How to Ensure Hydraulic Main Pump Stability in Rotary Drilling Rigs under Heavy Load?
1. Regular Maintenance and Replacement of High-Wear Parts
Rotary drilling rigs operate continuously under high pressure. Key parts like pistons, valve plates, swashplates, drive shafts, and return springs should be inspected frequently. Early replacement prevents internal leakage and efficiency loss.
2. Use OEM or Equivalent Rexroth A8VO160 Components
Choosing genuine or high-precision compatible parts ensures reliable sealing, responsive displacement control, and high-pressure tolerance—critical for stable performance and pump durability.
3. Maintain Clean Hydraulic Oil and Manage Heat
Daily check the oil level, clarity, and contamination. Use high-quality filters and, if necessary, install oil coolers to prevent overheating which causes expansion damage or part degradation.
4. Avoid Continuous Overloading
Workflows should be optimized to avoid constant high-pressure operations (e.g., repeated fast rod lifting). Controlled operation reduces stress fluctuations and fatigue in the hydraulic system.
5. Periodically Calibrate Pump Control Parameters
Misaligned pressure or displacement settings in control valves or controllers can destabilize pump performance. Routine diagnostics and recalibration by professionals ensure optimal pressure–flow output range.