Dosko Stump Grinder (691SP-20HE)

Dosko Stump Grinder (691SP-20HE)

The Dosko 691SP-20HE is self propelled by a hydrostatic drive system. All Dosko stump grinders are designed with safety in mind. Our front-mounted cutter wheel provides maximum operator safety at all times. The five-position handlebar adjustment gives the operator a comfortable working position and at the same time complete control of the machine while grinding.

This unit is powered by a proven Honda GX630 689cc commercial engine backed a 3 year warranty.

• Honda GX630 689cc
• Electric start
• Oil shutdown sensor
• Electromagnetic Clutch
• 1.375' diameter bearings
• Unique side discharge frame
• Comfortable to use
• Handlebar has five different positions
• 3-in-1 tooth system

Greenteeth® 700 series teeth Features concave 'dish' cutting edge that sheers rather than shreds Teeth can be rotated in three 120° increments for fresh cutting edge.

Dosko 691SP-20 Manual

The Dosko Stump Grinder (691SP-20HE) is a powerful, self-propelled machine designed for efficient and easy stump removal. Here’s why it’s a top choice:

• High-Powered Engine: Equipped with a 20 HP Honda GX630 engine, it delivers exceptional power to tackle large and tough stumps with ease.
• Self-Propelled for Ease: The self-propelled design makes it easier to maneuver and control, reducing operator fatigue, especially on larger or sloped properties.
• Heavy-Duty Construction: Built with rugged, durable materials, ensuring long-lasting reliability and performance under tough conditions.
• Large Cutting Wheel: Features a 20-inch cutting wheel, offering faster grinding and more efficient stump removal compared to smaller models.
• Hydraulic Drive System: Smooth and precise hydraulic drive ensures seamless operation, allowing you to grind stumps to ground level with accuracy.
• User-Friendly Controls: The intuitive controls are designed to make operation simple, even for those with limited experience using stump grinders.
• Safety Features: Designed with safety in mind, including protective shields and a stable base for secure operation and peace of mind.

Q: What is the Dosko Stump Grinder (691SP-20HE)?
A: The Dosko Stump Grinder (691SP-20HE) is a professional-grade, high-powered machine designed for efficiently removing tree stumps, equipped with a 20-horsepower engine and ideal for both commercial and heavy-duty residential use.

Q: What engine powers the Dosko Stump Grinder (691SP-20HE)?
A: The Dosko Stump Grinder is powered by a 20 horsepower Honda GX620 engine, providing powerful performance to handle even the toughest stumps with ease.

Q: What is the cutting width of the Dosko Stump Grinder (691SP-20HE)?
A: The grinder features a cutting width of 20 inches, allowing for a wide and efficient grinding process, making it easier to remove stumps faster.

Q: How deep can the Dosko Stump Grinder (691SP-20HE) grind stumps?
A: The Dosko Stump Grinder can grind stumps up to 8 inches deep below ground level, ensuring complete removal of the stump for a clean and level surface.

Q: What type of blade does the Dosko Stump Grinder (691SP-20HE) use?
A: The grinder is equipped with a heavy-duty carbide-tipped blade that offers high durability and long-lasting performance for efficient stump grinding.

Q: Is the Dosko Stump Grinder (691SP-20HE) easy to operate?
A: Yes, the Dosko Stump Grinder is designed with user-friendly controls, and the self-propelled system allows for smooth operation, even in challenging terrains, making it easier to maneuver around stumps.

Q: What is the weight of the Dosko Stump Grinder (691SP-20HE)?
A: The Dosko Stump Grinder weighs approximately 700 lbs, providing a sturdy and stable platform for grinding, while its self-propelled system helps with mobility across job sites.

Q: Is the Dosko Stump Grinder (691SP-20HE) suitable for commercial use?
A: Yes, the Dosko Stump Grinder is built for commercial use, offering the power, performance, and durability needed for professional landscapers and contractors to efficiently remove stumps.

Q: How is the Dosko Stump Grinder (691SP-20HE) transported?
A: The grinder features a self-propelled design for easy mobility and can be moved across job sites without the need for lifting, making it convenient for heavy-duty work.

Q: Does the Dosko Stump Grinder (691SP-20HE) come with a warranty?
A: Yes, the Dosko Stump Grinder typically comes with a manufacturer's warranty, covering parts and labor for a specified period, ensuring reliability and customer satisfaction.

• Clean After Each Use: Clean the machine thoroughly after each use by removing wood chips, dirt, and debris from the cutting area, engine, and undercarriage. Use a brush or compressed air for hard-to-reach areas.
• Inspect the Cutting Teeth: Regularly check the cutting teeth for wear or damage. Replace or sharpen them as necessary to maintain optimal grinding efficiency.
• Lubricate Moving Parts: Apply grease to all moving parts such as the bearings, axles, and cutting wheel to reduce friction and prevent wear. Regular lubrication will extend the life of the components.
• Check Engine Oil: Ensure the engine oil is at the proper level and change it at the recommended intervals. Also, check the air filter and replace it if it appears dirty or clogged.
• Inspect the Belts: Check the belts for signs of wear, cracking, or fraying. Replace any damaged belts to ensure smooth operation and avoid potential breakdowns.
• Hydraulic System Maintenance: For models with a hydraulic system, check the hydraulic fluid levels regularly. If needed, top up the fluid and inspect hoses for any leaks or damage.
• Tighten Bolts and Fasteners: Periodically check all bolts, nuts, and fasteners to ensure they are tightly secured. Loose components can lead to instability or damage.
• Check the Tires: Ensure the tires are properly inflated and free from punctures. Replace any damaged tires to maintain mobility and ensure the machine is stable during use.
• Fuel Care: Use fresh fuel and avoid storing fuel in the tank for extended periods. If you are storing the machine for long periods, either drain the fuel or add a fuel stabilizer to prevent engine issues.
• Proper Storage: Store the stump grinder in a dry, sheltered area when not in use to protect it from the elements. Keep it covered to prevent rust and other environmental damage.