M-TI SGR650 Manuale utente
0201
● 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 (25m) of stump grinding operation.
● Protect cars, windows and other objects within 75 feet (25m) 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, clean unit while engine is running.
● Avoid bums 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"
Your stump grinder is intended for outdoor-use only and can be used to remove many trees stumps and
exposed root systems close to ground level. By moving the blade 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.
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 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.
SGR650/SGR1500 STUMP GRINDER
OPERATOR’S MANUAL
Original Instructions
Instructions for Operation, Maintenance
Compact Stump and Root Grinder
WARNING
This is the safety alert symbol. It is used to alert you to
potential personal injury hazards.
Obey all safety messages that follow this symbol to avoid
possible injury or death.
DANGER indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation
which, if not avoid, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation
which, if not avoid, may result in minor or moderate
injury.
CAUTION used without the safety alert symbol indicates
a potentially hazardous situation which, if not avoided,
may result in property damage.
Neither the machine as a whole nor its internal
components are intended for use in potential
explosive atmospheres.
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 dam-
aged. See the "Receiving Your Unit" section for instructions on whom to contact to report missing
or damaged parts.
STOP
DANGER
WARNING
CAUTION
CAUTION
CAUTION
HAZARD SIGNAL WORD DEFINITIONS
MODEL
NUMBER:
SERIAL
NUMBER:
0403
About Your Grinder
Safety Decal Locations
Safety Decals
Machine Component Identification
4
5
6
7
Summary of Important Safety Information
Special Safety Information on Static Electricity
Part I. Introduction
Part II. Operation
Part III. Maintenance and Repair
Part IV: Important Safety Information
Parts Explosion
Warranty
21
25
29
31
Operation:
1. Pre-Start Check List & Procedures
2. Starting the Grinder
3. Stopping the Engine
4. Grinding the Stump
5. Refueling
6. Storing the Machine
8
10
11
11
13
14
Maintenance(To be done by owner or Rental Dealer)
1. Belt Tension Adjustment
2.Stop-Switch Adjustment
3. Installing Teeth
4. Schedule
Specifications
16
17
18
19
19
20
Read and follow all instructions and safety precautions presented throughout this manual. A summary
of important safety information can be found at the end of the manual. Keep this manual for reference
and review. If the owner of this unit is different than the operator, give a copy of this manual to any
operator to read.
Owner/Operator/Renter Training
All persons to whom you rent/loan this grinder must have access to this manual and read it. Check the
tube on the side of the unit to make sure a manual is inside. Advise all persons who will operate the
machine to read it. You should also provide personal instruction on how to safely operate the grinder
and remain available to answer any questions a renter/borrower might have. If videos are available,
have renter watch training video.
Your stump grinder can be used to remove many tree stumps and exposed root systems close to
ground level. By moving the blade 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. If you have any question, contact your retail or rental dealer
or manufacturer.
Exercise caution when cutting stumps on an incline, as the machine may shift or slide unpredictably.
Never attempt to cut with the machine uphill or downhill from you as it may slide toward you or you
may fall toward the machine. Cut only on a slope from the side.
The supplier is constantly improving its products. The specifications outlined herein are subject to
change without prior notice or obligation. The purchaser and/or user shall assume liability for any
modification and/or alterations of this equipment from original design and manufacturer.
Rental Companies
For detailed engine operation and maintenance information, always refer to the engine4 Owner's
Manual furnished with the grinder.
WARNING: Never attempt to cut an a slope exceeding 15°
Engine Instructions
Please fill out and submit the warranty registration card so that we have your contact information for
any future product literature or replacement parts you may need.
Warranty Registration
Before using, the user shall determine the suitability of this product for this intended use and assumes
liability therein.
Product Suitability
ABOUT YOUR GRINDERTABLE OF CONTENTS
05 06
1
2
3
4
5
6
Control Panel Operator Hazard
Brake Identification
Poisonous Gas Hazard
Flying Debris Hazard
Flying Debris Hazard
Amputation and Entanglement Hazard
Reference #
WARNING
Description
ALWAYS make sure safety labels are in place and in good condition, If a safety label is
missing or not legible, order new labels.
SAFETY DECAL LOCATIONS SAFETY DECALS
To order replacement safety labels, call Dosko Customer Service at 1-800-822-0295.
All grinder units can be transported via trailers or with the purchase of an optional towing kit
package can be towed behind the vehicle.
2
1
3
5
6
7
8
4
9
07 08
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Operator Presence Handle Bar
Handle Bar
Throttle Control Lever
Manual Holder
Adjustable Brake Lever
Clamp Handle
Engine
Starter Grip
Wheel
Engine On/Off Switch
Rubber Baffle
Cutter Guard
Cutter Wheel
Cutter Teeth
Front Handle
Belt Cover
Reference # Description
1. Pre-Start Check List & Procedures
Add engine crankcase oil. A new engine is shipped without oil. You must add the correct amount of oil
to engine crankcase or engine will be damaged beyond repair.
Note: #92 gasoline fuel and 5w30 engine oil.
Check Controls All guards are in place and tight.
Operator presence bar switch is free moving.
Inspect tires and rims for looseness, damage, and tire inflation.
Check/Add oil Check the oil level using the dipstick and add oil as needed.
Using a funnel, add oil up to the FULL mark o the dipstick with the
recommended oil type for your engine and expected ambient conditions.
(See engine Owner's Manual for oil type and capacity, and more detailed
oil check/fill instructions).
Fill stump grinder
gasoline tank
Check the gasoline level in the engine's fuel tank. If needed, fill tank
with fresh unleaded gasoline from a portable container, after first
reading the warnings and instruction below.
- DO NOT fill the gas tank to the top. Gasoline may spill when operating
on a slope.
- DO NOT overfill the gasoline tank. Allow at least 1" of empty space
below the fill neck to allow for fuel expansion.
#92 gasoline fuel and 5w30 engine oil
Check cutting teeth Inspect cutting teeth for tightness and sharpness. Only use factory-ap-
proved parts for repair.
Never open oil fill port while engine is running. Hot oil can spray over
face and body.
Before starting the engine you will want to make sure you have completed the following:
1. Marking Underground Utilities.
2. Checking Controls.
3. Checking Cutting Teeth.
4. Checking/Adding Oil.
5. Filling Stump Grinder Gasoline Tank.
6. Inspecting Fuel System for Leaks.
7. Locking Handle Bar.
8. Wearing Personal Protection.
9. Trimming Stump with Saw.
10. Clearing Area of People and Objects.
11. Working During Daylight.
Each of these procedures is discussed in detail below.
CAUTION:
WARING: Burn Hazard
WARNING: Gasoline fire/explosion hazard
MACHINE COMPONENT IDENTIFICATION OPERATION
09 10
2. Starting the Grinder
After you have completed the pre-start checking list and procedures, you are ready to start the
grinder.
The following directions details how to start the engine of your grinder.
Personal Protection Use approved protective clothing and approved protective equipment
when using the machine.
● Always wear safety glasses with side shields and a full-face shield.
● The use of ear plugs or other hearing protection device is also recom-
mended for persons working within 15-20 feet (5-6.5m) of the running
grinder for longer than a few minutes. Hearing can be damaged from
prolonged, close- range exposure to the type of noise produced by this
grinder.
● Wear long pants to protect legs from sparks, hot engine and flying
debris.
● Never wear jewelry or loose-fitting clothing when starting or operating
the grinder or any mechanical device. Loose or dangling apparel, jewelry
or hair can become entangled in moving parts.
●Neither the machine as a whole nor its internal components are intend-
ed for use in potential explosive atmospheres.
Trim Stump with Saw Cut or trim the stump preferably to ground level using a power saw.
Clear Area Dig away the earth and remove any stones near the tree stump or roots
that may interfere with your work.
Working During Daylight
Hours
Only use the machine in daylight or in well-lit conditions. Never operate
the grinder after dark.
Never attempt to use the grinder without proper protective equipment, particularly eye protection and
a full-face shield.
Note: For tighter brake adjustment, turn knob on top of brake lever. (See Maintenance & Repair
sections for instructions).
To start the grinder:
Note: For additional engine starting instructions see your gasoline engine manual.
● Lock handle in the upright position.
● Place stump grinder into position with cutting wheel near the front-top edge of the stump.
● Use brake lever on handle to lock the wheel brake.
● For cold engine, mover choke lever to the CLOSED position. To restart a warm engine, leave choke
lever in OPEN position.
● Turn engine switch to the ON position.
● Grip operator presence bar and handle bar together in left hand.
WARNING:
Stay in the OPERATOR POSITION (Behind the machine) while actuating controls. Never leave grinder
unattended.
WARNING:
Gasoline is highly flammable and explosive. Heat, sparks and flames can
ignite gasoline vapors, which can become widespread during fueling. A
flash fire ignition and/or explosion could result and cause serious injury
or death. The following conditions could result in gasoline ignition/explo-
sion:
● Gas vapor collection inside enclosures.
● Static electric sparks.
● Sparks from electric wiring, batteries, or running engines.
● Sources of heat (such as a hot engine or exhaust).
● Open flames, including pilot lights.
Inspect Fuel System/-
Check for Leaks
Inspect fuel system & check for leaks BEFORE starting grinder.
Locking Handle Bar Handle is capable of folding when not in use.
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 leaks or deteriora-
tion, chafed or spongy fuel hose, loose connections, loose or missing
fuel hose clamps, damaged gasoline tank, or defective gasoline shut-off
valve.
If grinder is in an enclosed area and you smell gas, DO NOT start
engine! DO NOT light a match. DO NOT flip on an electrical switch.
Exit area immediately leaving doors open and call fire department.
WARNING: Fuel leak hazard
11 12
3. Stopping the Engine
Stop the engine using the following steps:
● While holding blade off ground, release the operator presence bar. The engine will stop. Wait until
the blade completely stops. Lower the blade so it is resting against the ground.
● Make sure brake is set before leaving the controls, particularly if you are on an incline.
● Turn engine switch to OFF position.
● Allow the engine to cool for at least 30 minutes before releasing brake and moving to storage or
transporting. A hot engine can be a fire hazard.
4. Grinding the Stump
Stones, chips, and debris can cause serious injury or property damage.
Debris can fly 75 ft (25m) in any direction out of the chute. They can bounce off any fixed objects as
well and hit operator, bystanders or breakable objects.
● Set/engage the brake.
● Pivot the grinder toward the side of the stump, with a fairly light touch feed straight into the stump. As
soon as you feed in, start to swing to the side until you feel the wheel drop off the edge of the stump.
A rotating cutting wheel is very dangerous. Stay at the controls and keep others away until you are
sure the blades has come to a complete stop.
● Pull the starter grip lightly until you feel resistance, then pull briskly. Return the starter grip gently.
If the choke lever was moved to the CLOSED position to start the engine, gradually move it to the
OPEN position as the engine warms up.
● If engine does not start, repeat steps 5-7.
● Press down on handle bar to lift cutter wheel off the ground.
● Grip throttle control lever and handle bar together in right hand. Centrifugal clutch will engage and
cutter wheel will begin to rotate.
Change direction and swing back the other way until you feel it reach the other edge of the stump. As
you swing to the side listen to the engine. Provide enough feed to give it a moderate load. If you hear
any belt or clutch squealing you are pushing to hard. If you can not swing it to the side, raise the
grinder up.
You can cut roots off by plunging straight through them.
Keep hands and feet away. Contact with wheel rotating teeth will cause serious personal injury.
● When grinding larger stumps, chips may begin to build up under the wheel.
● Release brake and pull machine towards you so that the "chip pile" is directly under the cutting
wheel.
● Drop cutter wheel down on "Chip pile", material will be discharged from machine area.
WARNING:
WARNING: Rotating cutter wheel
Stones, chips, and debris can cause serious injury or property damage.
Debris can fly 75 ft (25m) in any direction out of the chute. They can bounce off any fixed objects as
well and hit operator, bystanders or breakable objects.
● On these large stumps, DO NOT allow grinder wheels to drop into stump hole. If a hole is in the way
of your progress, fill it with chips or change position.
WARNING: Flying Debris Hazard
WARNING: Flying Debris Hazard
13 14
5. Refueling
6. Storing the Machine
● Before removing gas cap, turn engine off and allow to cool for at least two minutes.
Note: A running or hot engine can ignite fuel.
● Remove grinder gasoline cap.
● Add gasoline through the fill opening
- Use only an portable gasoline container to transfer the gasoline to the grinder's tank.
- Be aware of safety warning and instructions below for avoiding static electric caused fires.
- Do not overfill.
Stop engine and set brake before leaving operator's position. KEEP BRAKE ENGAGED except when
changing locations.
● When finished, stop the engine.
● Pull machine away from stump, and rack chips away from stump.
WARNING:
A static electric spark can explosively ignite gasoline vapor, resulting in a flash fire that could cause
serious injury or death. See "Special Safety Information on Static Electricity" at end of this manual.
WARNING:Static electric spark hazard
● Clean up gasoline spills / splashes immediately.
- If possible, move the grinder away from spilled gasoline on the ground.
- Wipe up spilled gasoline, and wait 5 minutes for excess gasoline to evaporate before starting engine.
- Gasoline 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.
● Replace gasoline cap securely before starting engine.
● Store extra gasoline in a cool, dry place in an tightly sealed container.
● Filling towable units or portable containers at service stations:
Even if you have a towable unit, avoid static electric sparking while filling the gasoline tank:
- Never fill the grinder's gas tank directly from the fuel pump. The grinder's tank is not grounded and
high velocity flow from the pump can cause static electricity build-up. Use an portable container to
transfer gas to the grinder's tank.
- Use a portable container made of metal or conductive plastic. This is preferred because it dissipates
static charge to ground more readily.
- Never fill a portable gas container while it is sitting inside a vehicle, trailer, trunk, or pick-up truck
bed. ALWAYS place container on the ground to be filled.
- Keep nozzle in contact with container while filing. Do not use a nozzle lock-open device.
When you are finished using the grinder and it has cooled, you must:
● Cool engine before storage.
● Clean the grinder.
● Inspect for worn or damaged parts.
● Choose covered storage location.
● Prevent accidental starting.
● Plan on exercising the engine at least monthly unless the grinder is prepared for long term storage.
Detailed instructions are provided below.
Let engine cool for at least 30 minutes before storing. A hot engine
can be a fire hazard.
Clean all grease, dirt, mud and other foreign matter from the
machine. Touch up paint damage to prevent rust.
Inspect the machine for worn or damaged parts and tighten any nuts
or screws that may have become loose. Pay particular attention to
the cutting teeth.
Store the grinder in a location that is:
● Clean and dry
● Away from sources of heat, open flames, sparks, or pilot lights,
even if the grinder's gas tank is empty. Residual gasoline could ignite.
● Away from extreme high or low temperatures.
● Cover it for extra protection. ●
Cool Engine
Clean Grinder
Inspect Grinder
Choose a Storage
Location
15 16
ALWAYS shut off the engine, make sure the engine is cool, and disconnect the spark plug before clean-
ing, adjusting, or servicing the grinder. Make sure all guards and shields are replaced before using.
Perform periodic maintenance as directed in this manual to keep the
grinder in safe working condition.
Read and follow these safety rules whenever you will be servicing the
grinder:
● Turn off grinder. Always turn off grinder and remove spark plug
or spark plug wire before working on the engine or grinder to prevent
accidental starting.
● Replace guards/shields. Make sure all guards and shields are
replaced after servicing the grinder.
● Burns. Muffler will be hot even after unit is stopped. Allow unit to
cool before servicing.
● Repair. Major service, including the installation or replacement of
parts, should be performed only by a qualified electrical service
technician.
● Replacement parts. If a part needs replacement, only use
factory approved repair parts. Replacement parts that do not meet
specifications may result in a safety hazard or poor operation of the
grinder and will void the warranty.
Perform engine maintenance as specified in the engine owner's
manual.
Engine maintenance items include:
● Oil and oil filter changing
● Air filter check/replacement
● Spark plug cleaning and replacement
● Fuel filter check/replacement
● Fuel tank cleaning.
Inspect the fuel system and check for leaks on a regular basis.
Look for: signs of leaks or deterioration, chafed or spongy fuel hose,
loose connections, loose or missing fuel hose clamps, damaged
gasoline tank, or defective gasoline shut-off valve.
Perform regular
Maintenance
Follow Safety Rules
Perform Engine
Maintenance
Inspect Fuel System /
Check for Leaks
Remove spark plug, in order to ensure the grinder cannot be started
in a storage location or y untrained persons or children.
Remove Spark Plug
The grinder should be started regularly. At least every 4 weeks, start
the engine and let it run for 10 to 15 minutes.
Monthly exercising of the grinder will dry out any moisture that has
accumulated, lubricate cylinders, and clean out old gas in the carbu-
retor. Moisture, old gas, and dry mechanical parts cause deterioration
in stored engines.
Start Grinder Every 4
Weeks
If you will not be able to start the grinder regularly, you must prepare
the engine for long term storage to prevent gum deposits from
forming and causing malfunction of the engine.
Prepare engine for long term storage by:
● Removing all gasoline from the tank and carburetor
OR
● Adding fuel stabilizer to the gasoline (following manufacturer's
instructions)
Fuel stabilizer steps:
1. Ensure gas tank is full.
2. Add fuel stabilizer to fuel tank.
3. Run engine at least 10 minutes after adding stabilizer to allow 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 pull the recoil)
a few times to lubricate the combustion chamber.
8. Replace spark plug, but do not reconnect the spark plug wire.
Gasoline is highly flammable and explosive. Drain the fuel into an
approved container OUTDOORS and far away from open flame.
NEVER store an engine with fuel in the tank indoors or in poorly
ventilated spaces where fuel vapor can come in contact with
● Static electric sparks.
● Sparks from electric wiring, batteries, or running engines.
● Sources of heat (such as a hot engine or exhaust).
● Open flames, including pilot lights.
Prepare Engine for Long
Term (Seasonal) Storage
if needed
WARNING: Gasoline fire / explosion hazard
WARNING
MAINTENANCE
17 18
Never attempt to alter, modify or override
this switch.
If stop-switch ever needs to be replaced or
adjusted follow the below directions.
1. Loosen Hex Nut.
2. Turn the Linkage Bolt clockwise to lower or
counter-clockwise to raise the point of
interaction with Stop Switch. To set the
proper
interaction distance, grip the Operator
Presence
Bar & Handle Bar together and lower the
Linkage Bolt onto the Switch Button until the
switch button cannot be depressed any
further.
Then raise the linkage bolt one turn
(counterclockwise).
3. Tighten Hex Nut.
4. Verify operability of stop switch before
operating machine by releasing the operator
presence bar next to the handle bar. You
should hear a “CLICK”, signifying that the
Linkage Bolt has been adjusted properly.
Note: Belt tension and alignment are inter-related. Do not adjust one without checking the
other.
● Remove belt guard.
● Loosen (4) engine base (mount) bolts.
● Loosen lock nuts on tension bolt and alignment bolt.
● Turn tension bolt clockwise to increase belt tension and counterclockwise to decrease belt
tension.
● Check that the pulleys are aligned using a straight edge. To achieve proper pulley align-
ment 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 misaligned with
the cutter wheel pulley. Note: Set screws in pulley have a torque specification of 25.3kg/m.
● Belt tension is proper when a 2.27kg to 3.18kg force will deflect the belt 2/5" (1cm) at the
midpoint.
● Retighten all loosened nuts and bolts.
● Reassemble belt guard.
Cutter shaft bearings should be greased.
The cutter shaft bearing is greased by pumping grease into zerks
located on the housing of the bearing. Lubricate after every 20 hours
of use.
Check that the brake is functioning properly.
● Lock the brake, push down on handle bar so that cutter wheel is off
the ground.
● 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.
● Once you have set the brake to the
proper tension, tighten set screw to
lock adjustment knob.
Lubricate
Check and Adjust
Brake
Grease Specifications
Soap Type
NLGI Grade
Dropping Point
Additives
Viscosity Index
Lithium Complex
#2
230°C (446°F)
Corrosion and Oxidation
inhibitors, EP
optional
80 Minimum
WARNING:
Belt Tension Adjustment
Stop-Switch Adjustment
Questo manuale è adatto per i seguenti modelli
1
Indice
