M-ti Sgr650 User manual

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

HAZARD SIGNAL WORD DEFINITIONS

MODEL

NUMBER:

SERIAL

NUMBER:

0403

About Your Grinder

Safety Decal Locations

Safety Decals

Machine Component Identification

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

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

Maintenance(To be done by owner or Rental Dealer)

1. Belt Tension Adjustment

2.Stop-Switch Adjustment

3. Installing Teeth

4. Schedule

Specifications

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

Control Panel Operator Hazard

Brake Identification

Poisonous Gas 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.

07 08

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

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

● 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

230°C (446°F)

Corrosion and Oxidation

inhibitors, EP

optional

80 Minimum

WARNING:

Belt Tension Adjustment

Stop-Switch Adjustment

19 20

SGR650, SGR1500 Specifications

Among the most critical elements of the stump grinder is the cutting wheel. 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, such as dirt,

stones, large rocks and buried scrap.

The loss and wear of cutting teeth can significantly impair the efficiency and performance of the

stump grinder. Therefore, it is important to make frequent inspections of the condition of all the

cutting teeth and to replace any damaged or worn teeth

If a part needs replacement, only use parts that meet the manufacturer's specifications. Replace-

ment parts that do not meet specifications may result in a safety hazard or poor operation of the

grinder.

Before attempting any maintenance, be sure that the engine is shut off, the spark plug wire is

removed, and the engine is cool to the touch!

Thread in the bolt through the cutter wheel and into the teeth as

shown, then tighten. Bolt should be torque to 60ft/lbs.

Installing Teeth

Item

(What to check or action req'd)

Engine Option

General

Cutter Wheel

Cutting Capacity

Teeth, Carbide Tips

SGR650 SGR1500

Daily Each

Use

hours

Bearing, Shaft-Grease

Belt Tension-Tension

Bolts-Tightness

Engine

Gasoline-Amount

Safety Switch-Operation

Warning Decals-Legible

Tires, Flaps-Condition

Wires, Cables-Condition

Cutter Teeth-Sharpness

Maker

Model

CC Rating

Weight

Length

Width

Height

RPM Operating

Type of Fuel

Starting

Oil Sensor

Wheel Tire

Diameter

Thickness

Bearing

Cutter Wheel RPM

Drive

90kg

1605mm

680mm

1200mm

3600 rpm

Gasoline

Recoil

Yes

140/70-6

8.66” (220mm)

4.72” (12mm)

UCP205

2200 rpm/min

Direct Belt Drive

Centrifugal Clutch

113kg

1755mm

750mm

1200mm

3600 rpm

Gasoline

Recoil

Yes

145/70-6

9.45" (240mm)

4.72" (12mm)

UCP205

2500 rpm/min

Direct Belt Drive

17x1346Li V-belt

Centrifugal Clutch

Cutter Type

Steel Type

Steel Hardness

Weight

Length

Width

Tip Length

Wood

42CrMo

HRC40-42

1.59 lbs (0.72kg)

4-1/4" (10.8cm)

2-13/16" (7.1cm)

1-1/2" (3.8cm)

Wood

42CrMo

HRC40-42

1.59 lbs (0.72kg)

4-1/4" (10.8cm)

2-13/16" (7.1cm)

1-1/2" (3.8cm)

LONCIN G200F

G200F

200cc

LONCIN

G420F

390cc

Above Grade

Below Grade

Stump Diameter

9” (230mm)

8” (203mm)

20cm

10" (254mm)

9" (230mm)

No Limit

CAUTION:

IMPORTANT:

See manual

Installing Teeth

Maintenance Schedule

21 22

Prohibition Against Modifications

General

● Read manual. Read this Owner's Manual and the engine Owner's Manual completely before

attempting to use and service the grinder. Serious injury or death can result if safety instructions are

not followed.

● Instruct operators. The grinder owner or rental company must instruct all operators in safe

grinder set-up and operation. Do not allow anyone to operate the grinder who has not read the

Owner's Manual and been instructed on its safe use. Make sure Owner's manual is within the attached

storage tube on the grinder.

● Adults only. Only trained adults should operate and service the grinder. Do not let children

operate.

● Under the influence. Never operate, or let anyone else operate, the grinder while under the

influence of alcohol, drugs, or medication.

● Intended use. Carefully read about and understand the intended use of this grinder. Do not use

for other purposes, as unforeseen hazards or equipment damage may result.

● Controls and safety labels. Learn how to use the machine 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 condi-

tion.

Never modify or alter the grinder in any way. Modifications can create serious safety hazards and will

also void the warranty.

● Fuel/exhaust system. Never modify the exhaust system, fuel tanks, or fuel lines. Carbon

monoxide poisoning, fire, or explosion could result.

● Guards. Do not operate grinder unless all guards and cover shields, which prevent access to

moving parts and pinch points, are in place. Failure to guard the power transmission mechanisms

may result in serious injury or death.

Safety - Before Use

Know how to operate

● Review safety rules. Before use of this grinder, review the "Rules for Safe Operation."

● Know how to operate. Be thoroughly familiar with all controls and with the proper use of the

equipment. Know how to stop the grinder quickly if needed.

Getting Ready

● Flying debris. Clear area of objects such as stones, toys, steel wire, etc. that could become

caught in moving machine parts and ejected as a projectile.

● Operate OUTSIDE only – dangerous carbon monoxide exhaust! Grinders give off

carbon monoxide exhaust, a poisonous gas that can kill. You CANNOT smell it, see it, or taste it. ONLY

run grinder OUTDOORS and at least 20 feet (6m) from the home, away from windows, vents and air

intakes, to allow proper ventilation. If you start to feel sick, dizzy, or weak while using the grinder,

shut off the engine and get to fresh air RIGHT AWAY. NEVER run grinder engine inside homes, garag-

es, sheds, or other semi-enclosed spaces. These spaces can trap poisonous gases.

● Cooling ventilation. The grinder needs adequate, unobstructed flow of air to allow for proper

cooling of engine and grinder head. Do not allow debris to accumulate and block airflow.

● Transporting. During transporting, take precautions to make sure stump grinder will not tip over

and cause a fuel leak hazard.

● Hot exhaust - fires. Exhaust from engine can be extremely hot and cause fire. Position muffler

at least 7eet (2m) from combustible objects during operation.

Personal protective equipment

● Hearing protection. The use of ear plugs or other hearing protection device is recommended

for those in close proximity to the grinder while it is operating.

● Eye protection. Wear approved eye protection when operating the grinder.

● Face protection. A helmet with a full face visor or mesh visor with protective glasses is recom-

mended.

● Loose / dangling. Loose or dangling apparel, jewelry or hair can become entangled in moving

parts. Never wear jewelry or loose-fitting clothing when operating the grinder.

● Long pants. Wear long, heavy-duty pants to protect legs from ejected materials.

This section provides a summary of the various safety procedures and measures that have been

presented throughout the manual. Keep this summary handy and refer to it to refresh your memory

about how to safely use your grinder.

A-weighted sound power level emitted by the machine: 100.6dB for model SGR650; 103.8dB for

model SGR1500.

A-weighted emission sound pressure level at the operator’s station: 86.8dB for model SGR650;

90.8dB for model SGR1500.

The vibration total value to which the hand-arm system is subjected, less than 7.4 m/s2 for model

SGR650; 6.9 m/s2 for model SGR1500

The range of temperature in which the machine is intended to operate and be stored is 5-40°C;

Summary of Import Safety Information

Carefully read and make sure you understand the following safety

information before using the grinder. Improper use or maintenance

of the grinder can result in serious injury or death from fire/explo-

sion, carbon monoxide poisoning, lacerations, entanglement or

burns. Damage can also occur to windows, siding, vehicles, and

bystanders from chips and debris which can become projectiles.

WARNING

23 24

Safety - During Use

● Safety equipment / controls. Always operate the grinder with all safety covers, guards, and

barriers in place and in good working order, and all controls properly adjusted for safe operation.

● Controls. Stay in the OPERATOR POSITION while actuating controls.

● Know how to stop. Know how to stop the grinder quickly if needed by releasing the operator

presence bar. If this does not work, do the following in order until unit is stopped. 1. Push the stop

button on the control panel. 2. Use on/off switch on engine (or ignition switch on electric start

models). 3. Engage full choke by flooding the engine.

● "Kickback". Machine can experience significant "kickback" when operating or first coming into

contact with the stump.

● Slipping/Falling. Operating in wet or icy conditions could lead to losing your footing and slipping

or falling.

Safety - After Use

● Cool engine 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 accidental starting. When grinder is not in use, remove key from starter (electric

start engines) and secure in a safe location, or remove spark plug in order to ensure that grinder

cannot be started in a storage location or by untrained persons.

● Storage location. Store the grinder in a dry location away from sources of heat, open flames,

sparks or pilot lights – such as water heaters, space heaters, furnaces, clothes dryers, or other gas

appliances – EVEN IF the grinder's gas tank is empty. Residual gasoline could ignite.

● Damaged. Do not operate the grinder with damaged, missing, incorrectly adjusted, or broken

parts.

● Check for gas leak before starting. After opening gasoline valve, smell for gas before

starting engine. If you smell gas, DO NOT start engine. DO NOT light a match. DO NOT flip on an

electrical switch. Exit area immediately and call fire department.

● Carbon monoxide exhaust. The running engine gives off carbon monoxide, a poisonous gas

that can kill you. You CANNOT smell it, see it, or taste it. If you start to feel sick, dizzy, or weak while

using the grinder, shut off the engine and get to fresh air RIGHT AWAY. See a doctor. You may have

carbon monoxide poisoning.

● Other exhaust dangers. This product contains or emits chemicals to cause cancer, birth

defects or other reproductive harm. Avoid inhalation of exhaust.

● Smoking/sparks. Never smoke near the running grinder, and never operate near sources of

sparks or flames.

● Hot muffler. Never touch hot muffler or hot exhaust manifold. Exhaust and engine parts can be

very hot and will burn you.

● Machine's moving parts. Keep hands, feet, and apparel away from drive belts, cutter wheel,

and other moving parts. Never remove any drive belt or guard while the unit is operating. Contact

with belt or rotating teeth will cause personal injury.

● Refueling. DO NOT refuel the engine until it has cooled at least 30 minutes.

● Malfunction during operation. Always shut the machine off if any unusual noise or vibration

occurs.

● Vibration. Overexposure to machine vibration on a daily basis may lead to circulatory or nerve

damage.

● Adjusting / repairing. Always turn off grinder and remove spark plug or spark plug wire before

working on the grinder to prevent accidental starting.

● Cleaning the Jam: If the machine is jammed, stop the engine and remove the sparkplug wire

before attempting to clear any jams in the unit. Stop all work, turn off stump grinder, unplug spark

wire and ensure the engine is turned off and cooled before performing any diagnostics or repairs.

Gasoline Safety

Gasoline is highly flammable and explosive. You can be burned or seriously injured when handling

fuel. Use extreme care when handling gasoline:

● Fuel outdoors. Fill fuel tank outdoors – never indoors. Gasoline vapors can ignite if they collect

inside an enclosure. Explosion can result.

● Use approved container. Never pump fuel directly into engine at gas station. Static charge

can build and ignite fuel. Use an UL approved fuel container to transfer gas to the engine.

● Running / hot engine. A running engine is hot enough to ignite fuel. Never add fuel or remove

gas cap if engine is running or still hot. Stop the engine and allow to cool at least two minutes before

adding fuel.

● Heat / flames / sparks. Keep sources of 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.

● Don't fill to the top. Do not fill the gas tank to the top. Gasoline may spill when operating on a

slope.

● Replace cap. Replace gas cap securely before starting engine.

● Spills. Clean up fuel spills immediately. Move grinder away from spilled fuel on the ground. Wipe

fuel off engine and wait 5 minutes for excess fuel to evaporate before starting engine. Gas soaked

rags should be disposed of properly.

● On skin / clothes. If gasoline is spilled on your skin or clothes, change clothes and wash skin

immediately.

● Inspect fuel system. Check fuel system on a regular basis. Look for signs of leaks, deteriora-

tion, chafed or spongy fuel hose, loose or missing fuel hose clamps, damaged fuel tank, or a defective

fuel shut-off valve. Do not start grinder until needed repairs have been completed.

● Gasoline storage. Store gasoline in a cool, dry place in an UL-approved, tightly sealed container

away from children.

25 26

Safety - Inspection / Maintenance

Inspect and maintain your grinder on a regular basis and repair as needed to keep it in safe working

condition:

● 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. Do not touch hot muffler. Muffler will be hot even if unit is stopped. Allow unit to cool

before servicing.

● Replacement parts. If a part needs replacement, only use parts that meet the manufacturer's

specifications. Replacement parts that do not meet specifications may result in a safety hazard or

poor operation of the grinder and will void the warranty.

Static electricity on numerous occasions has explosively ignited gasoline vapors that were present

during fueling processes, resulting in serious burns to nearby persons. To avoid static electricity while

fueling, certain steps must be followed before and during the fueling process in order to minimize and

safely dissipate static charge build-up.

Filling Portable Containers at Service Stations:

Use a portable container to fill grinder tank. Never fill the grinder's gas tank directly from the service

station's fuel dispenser pump – the grinder's tank is not grounded and the high velocity flow of

gasoline from a fuel pump can cause static electric build-up. Use an approved portable container to

transfer gasoline to the grinder's tank.

● Use a portable container made of metal or conductive plastic. It will dissipate charge to ground

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