Today, 10:55 AM
The Rise of Champion Road Machinery
Champion Road Machinery Ltd., founded in 1875 in Goderich, Ontario, began as a manufacturer of horse-drawn road graders. By the mid-20th century, Champion had become synonymous with motor graders, especially in North America. The company’s reputation was built on simplicity, durability, and operator-friendly designs. In the 1980s, Champion introduced the 700 series, including the 710A, which quickly gained traction among municipalities and contractors for its balance of power and maneuverability.
Before Volvo acquired Champion in 1997, the 710A had already carved out a niche as a reliable mid-sized grader. Though exact production numbers are hard to pin down, estimates suggest several thousand units were sold globally, with strong presence in Canada, the northern U.S., and parts of Australia.
Core Specifications and Mechanical Design
The Champion 710A is powered by a Detroit Diesel 4-53N engine, a naturally aspirated four-cylinder two-stroke diesel known for its distinctive sound and high-revving characteristics. This engine produces approximately 140 horsepower at 2,800 RPM, driving a 6-speed forward and 4-speed reverse transmission. The grader features a tandem drive axle and a mechanical differential lock, allowing it to maintain traction on uneven terrain.
Terminology Note: “Tandem drive” refers to a configuration where both rear axles are powered, improving traction and load distribution. “Differential lock” enables both wheels on an axle to rotate together, useful in slippery conditions.
The moldboard, or grading blade, measures 12 feet in length and is hydraulically controlled for lift, angle, and tilt. The operator can also rotate the circle manually or hydraulically, depending on the configuration. The 710A’s frame is articulated, allowing the front and rear halves to pivot, which enhances maneuverability in tight spaces.
Hydraulic System and Blade Control
The hydraulic system on the 710A is gear-pump driven and operates at approximately 2,500 PSI. It powers the blade lift, angle, tilt, and articulation functions. Over time, common issues include:
Electrical System and Starting Challenges
The 710A uses a 12-volt electrical system with a Delco starter and alternator. Cold starts can be problematic, especially in sub-zero climates. Recommendations include:
Cab Comfort and Operator Visibility
The 710A was available in both open station and enclosed cab configurations. The enclosed cab features basic heating and ventilation, though air conditioning was optional. Visibility is generally good, thanks to the sloped hood and large windows. However, some operators retrofit LED lighting and rear-view cameras to improve night grading and safety.
A retired road foreman in British Columbia recounted how his crew added a roof-mounted spotlight and side mirrors to their 710A, allowing safer operation during emergency flood repairs in 1996.
Steering and Articulation System
The grader’s steering is hydraulic, with a priority valve ensuring steering pressure even when other hydraulic functions are in use. Articulation is controlled via a separate hydraulic circuit, allowing up to 25 degrees of frame pivot. This is especially useful for ditching and working around obstacles.
Terminology Note: “Articulation” in graders refers to the ability of the frame to bend at a central pivot point, improving turning radius and blade positioning.
Operators are advised to grease articulation joints every 50 hours and inspect the pivot bearings for wear annually.
Transmission and Drive Train Maintenance
The transmission is a direct-drive type with a torque converter. Gear shifting is mechanical, and clutch wear is a known issue. Symptoms include difficulty engaging gears or slipping under load. Solutions include:
Tire Selection and Traction Tips
The 710A typically runs on 14.00x24 tires, though some operators upgrade to radial 17.5x25 for better flotation and wear. For winter use, chains are recommended on all four rear tires. Tire pressure should be maintained at 65–75 PSI for optimal grading performance.
Parts Availability and Restoration Culture
Despite its age, the 710A enjoys decent parts support through aftermarket suppliers and salvage yards. Detroit Diesel parts are widely available, and hydraulic components can often be rebuilt. Enthusiasts have formed informal networks to share tips and locate rare parts.
In 2022, a vintage equipment rally in Ontario featured a restored 710A with custom paint and LED lighting. The owner, a retired grader operator, spent two years rebuilding the machine, including fabricating a new moldboard from AR400 steel.
Operational Tips and Blade Techniques
For effective grading, operators should:
Conclusion
The Champion 710A grader stands as a testament to Canadian engineering and practical design. Its robust build, straightforward mechanics, and versatile blade control make it a favorite among operators who value reliability over bells and whistles. Though newer models offer electronic controls and climate comfort, the 710A continues to serve in rural road maintenance, construction sites, and private fleets. For those willing to maintain and adapt, it remains a champion in every sense of the word.
Champion Road Machinery Ltd., founded in 1875 in Goderich, Ontario, began as a manufacturer of horse-drawn road graders. By the mid-20th century, Champion had become synonymous with motor graders, especially in North America. The company’s reputation was built on simplicity, durability, and operator-friendly designs. In the 1980s, Champion introduced the 700 series, including the 710A, which quickly gained traction among municipalities and contractors for its balance of power and maneuverability.
Before Volvo acquired Champion in 1997, the 710A had already carved out a niche as a reliable mid-sized grader. Though exact production numbers are hard to pin down, estimates suggest several thousand units were sold globally, with strong presence in Canada, the northern U.S., and parts of Australia.
Core Specifications and Mechanical Design
The Champion 710A is powered by a Detroit Diesel 4-53N engine, a naturally aspirated four-cylinder two-stroke diesel known for its distinctive sound and high-revving characteristics. This engine produces approximately 140 horsepower at 2,800 RPM, driving a 6-speed forward and 4-speed reverse transmission. The grader features a tandem drive axle and a mechanical differential lock, allowing it to maintain traction on uneven terrain.
Terminology Note: “Tandem drive” refers to a configuration where both rear axles are powered, improving traction and load distribution. “Differential lock” enables both wheels on an axle to rotate together, useful in slippery conditions.
The moldboard, or grading blade, measures 12 feet in length and is hydraulically controlled for lift, angle, and tilt. The operator can also rotate the circle manually or hydraulically, depending on the configuration. The 710A’s frame is articulated, allowing the front and rear halves to pivot, which enhances maneuverability in tight spaces.
Hydraulic System and Blade Control
The hydraulic system on the 710A is gear-pump driven and operates at approximately 2,500 PSI. It powers the blade lift, angle, tilt, and articulation functions. Over time, common issues include:
- Slow blade response due to worn pump gears
- Leaky control valves
- Air in the hydraulic lines
- Contaminated fluid
Electrical System and Starting Challenges
The 710A uses a 12-volt electrical system with a Delco starter and alternator. Cold starts can be problematic, especially in sub-zero climates. Recommendations include:
- Installing a block heater
- Using synthetic 5W-40 oil
- Upgrading battery cables to 2/0 gauge
- Replacing the starter solenoid every 3–5 years
Cab Comfort and Operator Visibility
The 710A was available in both open station and enclosed cab configurations. The enclosed cab features basic heating and ventilation, though air conditioning was optional. Visibility is generally good, thanks to the sloped hood and large windows. However, some operators retrofit LED lighting and rear-view cameras to improve night grading and safety.
A retired road foreman in British Columbia recounted how his crew added a roof-mounted spotlight and side mirrors to their 710A, allowing safer operation during emergency flood repairs in 1996.
Steering and Articulation System
The grader’s steering is hydraulic, with a priority valve ensuring steering pressure even when other hydraulic functions are in use. Articulation is controlled via a separate hydraulic circuit, allowing up to 25 degrees of frame pivot. This is especially useful for ditching and working around obstacles.
Terminology Note: “Articulation” in graders refers to the ability of the frame to bend at a central pivot point, improving turning radius and blade positioning.
Operators are advised to grease articulation joints every 50 hours and inspect the pivot bearings for wear annually.
Transmission and Drive Train Maintenance
The transmission is a direct-drive type with a torque converter. Gear shifting is mechanical, and clutch wear is a known issue. Symptoms include difficulty engaging gears or slipping under load. Solutions include:
- Adjusting clutch linkage
- Replacing worn friction discs
- Checking transmission fluid levels and condition
Tire Selection and Traction Tips
The 710A typically runs on 14.00x24 tires, though some operators upgrade to radial 17.5x25 for better flotation and wear. For winter use, chains are recommended on all four rear tires. Tire pressure should be maintained at 65–75 PSI for optimal grading performance.
Parts Availability and Restoration Culture
Despite its age, the 710A enjoys decent parts support through aftermarket suppliers and salvage yards. Detroit Diesel parts are widely available, and hydraulic components can often be rebuilt. Enthusiasts have formed informal networks to share tips and locate rare parts.
In 2022, a vintage equipment rally in Ontario featured a restored 710A with custom paint and LED lighting. The owner, a retired grader operator, spent two years rebuilding the machine, including fabricating a new moldboard from AR400 steel.
Operational Tips and Blade Techniques
For effective grading, operators should:
- Maintain a consistent blade angle of 30–45 degrees
- Use articulation to feather edges
- Avoid overloading the moldboard
- Grade downhill when possible for smoother finish
Conclusion
The Champion 710A grader stands as a testament to Canadian engineering and practical design. Its robust build, straightforward mechanics, and versatile blade control make it a favorite among operators who value reliability over bells and whistles. Though newer models offer electronic controls and climate comfort, the 710A continues to serve in rural road maintenance, construction sites, and private fleets. For those willing to maintain and adapt, it remains a champion in every sense of the word.
