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Owner's Manual 

Instructions for Operation, Maintenance 

 

 

Stump and Root Grinder 

 

Your NorthStar grinder is intended for outdoor-use only and can be used to remove many tree stumps 
and exposed root systems close to ground level.  By moving the wheel in sweeping movements laterally 
over the top and front of the stump, you can gradually grind it away.  Make sure you completely read 
and understand this manual before using the grinder for the first time.   

 

  WARNING 

 

 

READ and UNDERSTAND this manual completely before using the grinder!  

Failure to properly operate, 

and maintain this grinder could result in

 

serious injury or death

 

to the operator or bystanders.   

All machines have hazards associated with their operation. This stump grinder has certain special hazards, 
which you must be aware of.  As an operator or owner you have a duty to be aware of these hazards and know 
preventive measures to take to avoid them. When reading this manual pay particular attention to avoiding these 
hazards. 
In particular, be aware of the following: 

 

Know location of buried electrical and other utility lines.   

 

Do not allow children or untrained adults to operate. 

 

Wear eye protection and other personal protection against flying rocks and debris. 

 

Check that cutter wheel teeth are secured, sharp and not missing. 

 

Do not operate if operator presence bar fails to stop engine upon release. 

 

Make sure no children or bystanders are within 75' (feet) of stump grinding operation. 

 

Protect cars, windows and other objects within 75' from flying debris. 

 

Be prepared for machine “kickback” when initially contacting the stump. 

 

Be aware of potential for carbon monoxide (CO) poisoning. 

 

Prevent fires/explosions from fueling. 

 

Do not attempt to perform adjustments, declog or clean unit while engine is running. 

 

Avoid burns from engine or hot exhaust. 

 

Avoid using in wet or icy conditions where falls may occur. 

 

Details about these hazards are found throughout the manual and are summarized at the end of the manual under 
“Important Safety Information.” 

 

 

 

STOP! 

 

ADD ENGINE OIL

:  Your stump grinder comes fully assembled and requires only that you add engine oil to crankcase 

and fuel to tank. 

INSPECT COMPONENTS

:  Closely inspect to make sure no components are missing or damaged.  See the “Receiving 

Your Unit” section for instructions on whom to contact to report missing or damaged parts. 

 

Any Questions, Comments, Problems, or Parts Orders 

Call your dealer or NorthStar Product Support 1-800-270-0810

 

MODEL NUMBER:  296020 
 

 

SERIAL NUMBER: _____________ 

M296020E.2

 

Summary of Contents for 296020

Page 1: ...rotection and other personal protection against flying rocks and debris Check that cutter wheel teeth are secured sharp and not missing Do not operate if operator presence bar fails to stop engine upo...

Page 2: ...Hazard Signal Word Definitions 2...

Page 3: ...Grinder 11 3 Stopping Engine 13 4 Grinding Stump 13 5 Refueling 15 6 Storing Machine 16 Part III Maintenance and Repair Maintenance To be done by owner or rental dealer 18 1 Belt Tension Adjustment 2...

Page 4: ...Your NorthStar grinder can be used to remove many tree stumps and exposed root systems close to ground level By moving the wheel in sweeping movements laterally over the top and front of the stump yo...

Page 5: ...decal kit Flying Debris Hazard person 4 Amputation and Entanglement Hazard 5 California Proposition 65 Warning 6 Poisonous Gas Hazard 8 Personal Injury Fire Explosion Entanglement Hazards 9 786635 Bu...

Page 6: ...placement safety labels call NorthStar Product Support at 1 800 270 0810 All grinder units can be transported via trailers or with the purchase of an optional towing kit package can be towed behind th...

Page 7: ...these cases your unit has been completely assembled tested and pre run It should be ready for usage See Pre Start Checklist and Procedures 2 Towing Instructions On Towable Models Optional tow package...

Page 8: ...ontrol Panel 2 Pin Adjustment Handle Bar 3 Tire and Hub 4 Discharge Flap 5 Belt Guard 6 Tooth Pocket 7 Cutting Tooth 8 Cutter Wheel Disc 9 Cutter Guard 10 Throttle Control Lever 11 Engine 12 Adjustabl...

Page 9: ...local utility company to request marking utilities 3 days before stump grinding Trees can grow on top of and around underground wiring that was installed many years before a tree was planted Check con...

Page 10: ...grinder WARNING Fuel leak hazard A leaking fuel line no matter how small can be the source of a fire or explosion when starting or operating the engine Inspect the entire fuel system Look for Signs of...

Page 11: ...e following directions detail how to start the engine of your grinder WARNING Never attempt to use the grinder without proper protective equipment particularly eye protection and a full face shield To...

Page 12: ...es until engine starts Allow starter cord to return slowly 8 If engine does not start repeat steps 5 7 9 Press down handle bar to lift cutter wheel off the ground 10 Grip throttle lever and grinder ha...

Page 13: ...e to rotate when the throttle is activated 2 Pivot the grinder toward the side of the stump with the cutter wheel off the ground and not touching the stump Hold down throttle control lever and allow t...

Page 14: ...cutting wheel Drop cutter wheel down on chip pile material will be discharged from machine area WARNING Flying Debris Hazard Stones chips and debris can cause serious injury or property damage Debris...

Page 15: ...line soaked rags are flammable and should be disposed of properly If gasoline is spilled on your skin or clothes change clothes and wash skin immediately 5 Replace gasoline cap securely before startin...

Page 16: ...y have become loose Pay particular attention to the cutting teeth Choose a storage location Store the grinder in a location that is o Clean and dry o Away from sources of heat open flames sparks or pi...

Page 17: ...low it to enter the fuel system 4 Shut off engine 5 Disconnect spark plug wire and remove spark plug 6 Add one teaspoon oil through spark plug hole 7 Place rag over spark plug hole and turn starter or...

Page 18: ...ment of parts should be performed only by a qualified electrical service technician Obtain factory approved parts from NorthStar Service at 1 800 270 0810 Replacement parts If a part needs replacement...

Page 19: ...und Push or pull the grinder if the brake is loose the wheel will rotate To adjust braking tension Unscrew set screw Turn knob clockwise to increase tension or counter clockwise to decrease tension On...

Page 20: ...chieve proper pulley alignment you may need to adjust the alignment bolt This bolt will serve as an adjustment point to counter the tension in the belts which may cause the engine pulley to be misalig...

Page 21: ...el It is also the most subject to damage and wear In the course of grinding stumps it not only makes contact with the wood but also encounters numerous abrasives and objects in the stump s environment...

Page 22: ...reen Wheel on the other side 3 Using the Green Wheel grind the end of the carbide until the edge is once again sharp Avoid grinding on the top of the carbide which would reduce its thickness and weake...

Page 23: ...ocket Tighten teeth 100 to 110 ft lbs torque CAUTION Cutter wheel will be out of balance and should never be run with a tooth missing or a badly worn tooth Teeth should be alternated so that you have...

Page 24: ...ease X Bearings Wheel Grease X Belt Tension Tension X Bolts Tightness X Engine See manual Gasoline Amount X Safety Switches Operation X Warning Decals Legible X Tires Flaps Condition X Wires Cables Co...

Page 25: ...EEL Diameter 14 36cm Thickness 3 8 95cm Bearings Dia 2 1 3 16 3cm Teeth Pockets Reversible Teeth 8 Carbide tips Disc RPM 3000 RPM Drive Direct belt drive Centrifugal clutch 2 groove power band with id...

Page 26: ...and it s controls safely Understand and follow all safety labels Weather Never use in foul bad or questionable weather which causes a slippery ground condition Prohibition Against Modifications Never...

Page 27: ...heat flame or sparks away while adding fuel Don t fill to the top DO NOT overfill the gas tank Allow at least 1 of empty space below the fill neck to allow for fuel expansion and operation on slopes D...

Page 28: ...ine before storing Let engine cool for at least five minutes before storing A hot engine can be a fire hazard Shut off fuel supply Make sure gasoline shut off valve is in the OFF position Prevent acci...

Page 29: ...Objects made of non conductive materials e g plastics easily accumulate and retain static electric charge as can objects made of conductive material e g metal water if they are not electrically ground...

Page 30: ...M296020 Exploded View Rev E 2 30...

Page 31: ...roswitch bracket 1 40 783556 Pillow block bearing 2 13 784822 NorthStar decal 1 41 82376 5 8 18 x 1 3 4 pocket bolt 8 14 783815 Black vinyl cap 1 42 784066 Counter sunk pocket 4 15 783774 4 Hitch pin...

Page 32: ...Wiring Diagram 32...

Page 33: ...such as engines are guaranteed by their manufacturer and can be serviced at factory authorized locations near you Any costs incurred due to replacement or repair of items outside of a NorthStar approv...

Page 34: ...34 Manufactured by Northern Tool Equipment Co Inc Burnsville MN 55306 NorthernTool com Made in the USA...

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