The 1985 Champion 720A Motor Grader: Features, Performance, and Maintenance Insights

[MikePhua]

Overview of the Champion 720A
The Champion 720A motor grader, produced in 1985, stands out as a durable and efficient machine designed for road grading, earthmoving, and maintenance tasks. Known for its robust build and reliable hydraulic systems, this model has been favored by operators who require dependable performance on challenging terrains.
Technical Specifications

• Engine
  • Type: Diesel engine known for strong torque delivery.
    
  • Power output suitable for heavy grading operations.
    
• Transmission
  • Powershift transmission enabling smooth gear changes.
    
  • Multiple speed ranges for adaptability on various job sites.
    
• Blade and Moldboard
  • Adjustable blade width offering versatile grading options.
    
  • Hydraulic control for precise blade positioning and angling.
    
• Hydraulics and Controls
  • Responsive hydraulic system ensuring smooth movements.
    
  • User-friendly joystick and levers facilitating operator control.
    

Common Operational Strengths

• Excellent traction and stability on uneven or soft ground.
  
• Robust frame construction minimizing vibrations and wear.
  
• Good fuel efficiency relative to power output.
  
• Ease of maintenance with accessible components.
  

Typical Maintenance and Troubleshooting Issues

• Hydraulic Leaks
  • Regular inspection of hoses and seals recommended to prevent fluid loss.
    
  • Use of quality hydraulic fluid ensures longevity.
    
• Transmission Wear
  • Periodic fluid changes and filter replacements prolong transmission life.
    
  • Monitoring for unusual noises or shifting problems aids early detection.
    
• Blade and Moldboard Adjustments
  • Frequent lubrication of pivot points necessary to avoid stiffness.
    
  • Checking blade sharpness improves grading efficiency.
    
• Engine Performance
  • Air and fuel filters need regular replacement to maintain power.
    
  • Cooling system upkeep avoids overheating in demanding conditions.
    

Case Story: Longevity through Proper Care
An owner of a 1985 Champion 720A shared how routine preventive maintenance kept the grader operational for over 30 years. By strictly following hydraulic and engine service schedules and promptly addressing leaks, the machine maintained consistent grading precision and reduced costly downtime.
Industry Context
The Champion brand was recognized for rugged construction machinery before being absorbed by larger manufacturers. The 720A reflects design philosophies focused on operator comfort combined with mechanical simplicity — traits that have allowed many units to remain in service decades after production.
Glossary of Terms

• Moldboard: The curved blade on a grader that cuts, spreads, and levels soil.
  
• Hydraulics: Fluid-powered systems controlling machine movements.
  
• Powershift Transmission: A transmission allowing gear changes under load without clutching.
  
• Torque: The rotational force generated by the engine, critical for moving heavy loads.
  
• Pivot Points: Joints allowing blade movement and adjustment.
  

Conclusion
The 1985 Champion 720A motor grader remains a testament to solid engineering and practical design. Its balance of power, control, and maintainability suits operators working in demanding earthmoving and road maintenance roles. With proper upkeep, this classic machine continues to offer value and reliability long after its manufacturing era.