Barreto 30sg User manual

30SG OPERATOR’S MANUAL 11/25/13 Page 1 of 24

THE

MODEL 30SG

HYDRAULIC TRACK STUMP GRINDER

OPERATOR’S MANUAL – ORIGINAL INSTRUCTIONS

STUMP GRINDER INTENDED USE

The Barreto Stump Grinder is designed to remove in-ground tree stumps and exposed roots. It should not

be used to cut any material other than wood stumps and the surface soil around the stumps or exposed

roots.

TABLE OF CONTENTS

LUBRICATION REQUIREMENTS 2

SAFETY MESSAGES 3

SAFETY INSTRUCTIONS OVERVIEW 4

BATTERY & ELECTRIC STARTER SAFETY INSTRUCTIONS 6

STUMP GRINDER OPERATING INSTRUCTIONS 7

CONTROLS 7

ENGINE CONTROLS 9

ENGINE START UP PROCEDURE 10

KOHLER START UP PROCEDURE 11

BRIGGS/VANGUARD CONTROLS & START UP PROCEDURE 12

OPERATOR PREPARATION 13

NOISE EMISSION DATA 13

VIBRATION EMISSION DATA 14

DETERMINE LOCATION OF UNDERGROUND UTILITIES 15

WORK SITE ASSESSMENT 16

CONTRACT WITH UNDERGROUND UTILITIES 17

GRINDING PROCEDURE 18

GRINDING TIPS 18

SHUT DOWN PROCEDURE 18

JUMP STARTING ENGINE WITH ELECTRIC STARTER 19

GROUND TRANSPORT OF THE GRINDER 20

EMERGENCY TOWING 21

ROAD TRANSPORT OF THE GRINDER 22

INDEX 24

30SG OPERATOR’S MANUAL 11/25/13 Page 2 of 24

LUBRICATION REQUIREMENTS

Grease at the intervals indicated per the illustration of grease lubrication points. There is also a grease

diagram decal on the machine.

30SG OPERATOR’S MANUAL 11/25/13 Page 3 of 24

SAFETY MESSAGES

General safety messages are listed in this Safety Messages section. Specific safety messages appear as

appropriate in this manual where a potential hazard may occur if procedures or instructions are not

followed correctly and completely.

SAFETY SYMBOL

This is the international safety alert symbol. This symbol is used in combination with a signal word

and written message to warn you of a potential for bodily injury or death.

A signal word "DANGER", "WARNING", or "CAUTION" is used with the safety alert symbol.

DANGER: Imminent hazards, that if not avoided, will result in serious personal injury or death.

WARNING: Potential hazards or unsafe practices, that if not avoided, could result in serious

personal injury or death:

CAUTION: Potential hazards or unsafe practices, that if not avoided, could result in minor

personal injury, product damage, or property damage.

Safety decals with a signal word "DANGER", "WARNING", or "CAUTION" are affixed to the stump

grinder near specific hazards.

This machine shall always be used in accordance with this manual. Study it and ALL decals on the stump

grinder before operating the stump grinder.

ALWAYS make sure the engine is turned off before performing maintenance, cleaning, or transport by

means other than under its own power.

Before using, always visually inspect to see that the tools are not worn or damaged. Replace worn or

damaged elements and bolts in sets to preserve balance.

Use extreme caution when reversing the machine towards you.

Do not change the engine governor settings or overspeed the engine.

30SG OPERATOR’S MANUAL 11/25/13 Page 4 of 24

SAFETY INSTRUCTIONS OVERVIEW

READ SAFETY AND OPERATING INSTRUCTIONS BEFORE OPERATING!

USE COMMON SENSE AND PLENTY OF IT!

Call before you cut. If you do not call, you may cause an accident; suffer injuries or death; cause

interruption of services; damage the environment; and/or incur project delays. Expect to be held liable for

any damages caused, if you fail to call.

DANGER: Buried electric cables or gas lines can cause serious injury or death if struck with cutter

wheel. Always determine location of utilities before cutting.

WARNING: Fiber optic cables convey laser light that can injure your eyesight.

STAY CLEAR of moving parts on the stump grinder.

DANGER: Cutter wheel and other moving parts can cut off arms, legs, or fingers. Contact with the

cutter wheel while in operation will cause serious injury or even death. Stay in the operator’s

position at the controls when the cutter wheel is operating. Keep all observers and helpers at a safe distance

from the machine. Stop the cutter wheel immediately if anyone gets too close to the operating machine.

Wear a face safety shield and hard hat while operating or observing!

WARNING: The cutter wheel may throw chips, rocks and

debris into the area around the machine. Keep all bystanders at

a safe distance from the machine. Always wear eye protection when

operating or observing the machine in operation.

Wear adequate hearing protection while operating or observing.

WARNING: The machine and cutter wheel are loud when in

operation. Wear ear protection when operating the machine.

Exposure to loud noise is cumulative and may permanently damage

your hearing.

Wear safety boots and gloves. Wear close-fitting clothing. Contain long hair. Do not wear jewelry. Wear

reflective clothing if working near traffic.

Only operate outdoors and avoid breathing engine exhaust and fumes.

WARNING: Engine exhaust contains carbon monoxide gas that is toxic. Breathing it can cause

unconsciousness and death.

Adequate lighting is required, daylight or artificial, for safe operation of the stump grinder. Allow adequate

side and overhead clearances between machine and buildings, fences, and trees.

30SG OPERATOR’S MANUAL 11/25/13 Page 5 of 24

SAFETY INSTRUCTIONS OVERVIEW (continued)

WARNING: Contact with the cutter wheel while in operation will cause serious injury or even

death. The teeth of the cutter wheel are sharp. Avoid contact even when the wheel is not moving.

Avoid inclines if at all possible.

WARNING: Navigating on any incline increases the danger of the machine losing traction or

rolling over, especially if the surface is wet. If you lose control, get out of the way immediately to

avoid personal injury. Navigation on inclines should be especially slow and turns very gradual. Refer to

the incline diagram in the section, “GROUND TRANSPORT”.

Avoid operating adjacent to drop-offs or embankments.

Keep away from tracks to avoid being crushed.

WARNING: Being run over by the machine will cause injury.

Always leave machine parked on a level surface.

WARNING: Do not park on incline. Move the machine to a level surface and set the parking brake

located behind the left hand track motor. Move the handle down to engage the brake.

Do not leave machine unattended with the engine running.

Do not operate machine near any source of flammable dust or vapors.

WARNING: Sparks from the engine exhaust can cause an explosion or fire in a flammable or

explosive atmosphere. Fuel fumes can catch fire or explode.

Do not operate machine near flames or sparks.

WARNING: Fuel fumes can catch fire or explode. If fuel is spilled, do not attempt to start engine

but move the machine away from the area of spillage and avoid creating any source of

ignition until the vapors have dissipated.

Shut off engine and allow it to cool before refueling.

WARNING: Fuel fumes can catch fire or explode. Refuel outdoors and do not smoke when

refueling. Do not refuel near a source flames or sparks. Always store fuel in containers

specifically designed for this purpose. Add fuel before starting engine. Never remove the cap

on the fuel tank or add fuel while the engine is running or when the engine is hot.

WARNING: Replace all fuel tank and container caps securely.

Do not touch the engine, muffler, or any of the hydraulic components until cool.

WARNING: Muffler and engine get hot enough to cause serious burns. For the safety of yourself

and others, allow enough time for the engine, muffler, and the hydraulic fluid to cool completely

before performing any cleaning or maintenance.

WARNING: Stay clear of the articulation area while the engine is running.

30SG OPERATOR’S MANUAL 11/25/13 Page 6 of 24

SAFETY INSTRUCTIONS OVERVIEW (continued)

Avoid contact with hydraulic fluid.

WARNING: When machine is operating, hydraulic fluid is under extreme pressure and can get

under skin and burn or poison.

WARNING: Keep safety guards and shields in place while the engine is running and keep all

operator protection systems in place and in operational condition.

WARNING: Never store the equipment with petrol in the tank inside a building where fumes can

reach an open flame or spark. Allow the engine to cool before storing in an enclosure. To

reduce fire hazard, keep the engine, muffler, battery compartment and fuel storage area free of

any vegetative material and excessive grease.

Keep others away. If the job site is near a road or pedestrian path, warn and divert both motorized traffic

and pedestrians. As appropriate, use traffic flag personnel, signs, cones, and lighting devices to insure

safety.

Never allow anybody to ride on the machine.

Never lift machine over any person at any time.

WARNING: If machine should fall, it would crush anybody under it.

We recommend having a fire extinguisher suitable for petrol fires in the operating area.

BATTERY & ELECTRIC STARTER SAFETY INSTRUCTIONS

Shield entire face, especially your eyes, and wear rubber gloves to avoid acid burns whenever doing

anything with the battery. Battery caps must be tightly in place if the battery has removable caps.

WARNING: The battery contains sulfuric acid that can cause blindness and severe burns. Avoid

contact with eyes, skin, and clothing. If acid contacts eyes, call 911 immediately and flush eyes with

water for 15 minutes or until emergency medical help arrives. If acid contacts skin, flush area with plenty

of water. If acid is ingested, drink large quantities of water or milk then follow with milk of magnesia,

beaten egg, or vegetable oil, and get medical attention immediately.

Avoid contact with battery components. Wear rubber gloves and wash hands after handling any battery

components.

WARNING: Battery posts, terminals, and related accessories contain lead and lead compounds,

chemicals known to cause cancer and reproductive harm. Acid can cause blindness and severe burns

if leaked from the battery.

Do not charge or jump-start the battery near flames or sparks, or while smoking.

WARNING: Battery fumes are flammable and explosive. Avoid explosion hazard that could blind

and burn. Tools and jumper cable clamps can make sparks, so use them with care. Shield eyes and

face, and wear rubber gloves.

BATTERY MAINTENANCE is in the OWNER’S MANUAL.

30SG OPERATOR’S MANUAL 11/25/13 Page 7 of 24

STUMP GRINDER OPERATING INSTRUCTIONS

READ SAFETY INSTRUCTIONS BEFORE OPERATING! Both the SAFETY INSTRUCTIONS and

OPERATING INSTRUCTIONS are in this manual.

Be sure that the engine oil and fuel, and the machine hydraulic fluid are all at proper levels before starting

the engine.

STUDY AND UNDERSTAND CONTROLS BEFORE BEGINNING OPERATION.

CONTROLS

1. KEYED IGNITION SWITCH: This remote switch is located with the other grinder controls for your

convenience. Use it to start and stop the engine equipped with an electric starter. Refer to the ENGINE

START UP PROCEDURE.

2. ENGINE: This is the throttle - controls engine speed. Operate at full throttle (all the way forward).

3. TRACK CONTROL: Controls the travel direction and speed.

•Track controls are designed to be operated with two hands.

•Pushing the control handles forward from neutral position causes the machine to move forward.

•Pulling the control handles back from neutral position causes the machine to move backward.

•Moving the track control handles farther from the neutral position increases the speed.

•Steer the machine by moving one track control handle farther than the other handle. This causes the

track on one side to rotate at a different speed than the opposite track. Pivot turns can be made by

moving one control forward and the other control back.

THROTTLE CABLE

LEFT TRACK RIGHT TRACK

30SG OPERATOR’S MANUAL 11/25/13 Page 8 of 24

CONTROLS (continued)

4. CUTTER WHEEL CONTROL: To start the cutter wheel, hold down the thumb button on the control

handle. Then pull the trigger back. After the wheel is started, the thumb button can be released, but the

trigger must be held to keep the cutter wheel turned on. To raise the cutter head, pull the control handle

back. Push the control handle forward to lower the cutter head. The cutter head is moved to the left and

right by leaning the control lever left or right.

TRIGGER THUMB BUTTON

5. PARKING BRAKE: It is located behind the left hand track motor. Move the handle down to engage the

brake, and up to disengage it.

30SG OPERATOR’S MANUAL 11/25/13 Page 9 of 24

ENGINE CONTROLS

FUEL SHUTOFF VALVE: Must be in OPEN position for engine to run.

CHOKE: Use to aid starting the Vanguard engine only when it is cold.

KEYED IGNITION SWITCH: This remote switch is located with the engine controls for your

convenience. Use it to start and stop the engine equipped with an electric starter. Refer to the ENGINE

START UP PROCEDURE.

ENGINE: This is the throttle lever. It controls the engine speed. Operate stump grinder at full throttle (all

the way forward).

VANGUARD CHOKE VANGUARD KEYED IGNITION SWITCH

KOHLER KEYED IGNITION SWITCH

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ENGINE START UP PROCEDURE

Only operate machine outdoors and avoid breathing engine exhaust and fumes.

WARNING: Engine exhaust contains carbon monoxide gas that is toxic. Breathing it can cause

unconsciousness and death. Avoid any areas or actions that expose you to carbon monoxide.

1. Check engine oil level.

2. Check hydraulic oil level. HYDRAULIC OIL LEVEL

3. Check fuel level.

4. Open the FUEL SHUTOFF VALVE.

5. If the engine is cold, close the CHOKE. Turn choke off (open) after engine warms up enough. To

restart a warm engine, leave the choke in the open position. (Briggs/Vanguard engine only).

6. Move the ENGINE THROTTLE to about 1/3 of the way forward.

7. ELECTRIC STARTER: Turn the ignition key to the START position, and hold it there until the engine

starts. If the engine fails to start within 10 seconds, release the key, and wait at least 10 seconds before

operating the starter again.

NOTICE - Using the electric starter for more than 10 seconds at a time will overheat the starter motor

and can damage it.

When the engine starts, release the key, allowing it to return to the ON position.

Open the CHOKE (turn choke off) after the engine warms up enough. (Briggs/Vanguard engine only).

COLD WEATHER OPERATIONS: Before operating in cold weather, refer to the Engine Owner’s Manual

for recommended engine oil. Do not spray starting fluid into the air cleaner as engine damage could result.

If the machine is operated at temperatures below +32°F (0°C) then changing the hydraulic fluid to ISO 46

is recommended. If you do not want to change the hydraulic fluid but want to operate the machine at

temperatures below +32°F (0°C), then do the following:

•Warm up engine at a low speed.

•Gradually increase engine speed, allowing 30 minutes for the hydraulic fluid to warm up.

Reduce the engine speed if the hydraulic pump whines. Pump noise may indicate a lack of hydraulic fluid

flow that could damage the pump.

For frequent starts below 18°F consult your Barreto Manufacturing, Inc. dealer.

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KOHLER START UP PROCEDURE

1. Check the oil level. Add oil if low. Do not overfill.

2. Check the fuel level. Add fuel if low. Check the fuel system components and lines for leaks.

3. Check and clean the cooling areas, air intake areas and external surfaces of the engine

(particularly after storage).

4. Check that the air cleaner components and all shrouds, equipment covers, and guards are

in place and securely fastened.

5. Check the spark arrestor (if equipped).

6. Place the throttle control midway between slow and fast positions.

7. Turn the key switch to the START position. Release the switch as soon as engine starts. If the starter

does not turn the engine over, shut off the key switch immediately. Do not make further attempts to start

engine until condition is corrected. Do not jump start. See your Kohler authorized

dealer for trouble analysis.

NOTE: To prime a dry fuel system, turn the key switch to ON position for one minute. Allow fuel pump to

cycle and prime system. Turn the key switch OFF.

NOTE: Do not crank the engine continuously for more than 10 seconds. Allow a 60 second cool down

period between starting attempts. Failure to follow these guidelines can burn out the starter motor.

NOTE: Upon start-up, a metallic ticking may occur. Run the engine for 5 minutes. If noise continues, run

the engine at mid throttle for 20 minutes. If noise persists, take the engine to your local Kohler authorized

dealer.

Only operate the stump grinder outdoors and avoid breathing engine exhaust and fumes.

WARNING: Engine exhaust contains carbon monoxide gas that is toxic. Breathing it can cause

unconsciousness and death. Avoid any areas or actions that expose you to carbon monoxide.

30SG OPERATOR’S MANUAL 11/25/13 Page 12 of 24

BRIGGS/VANGUARD CONTROLS & START UP PROCEDURE

STARTING THE ENGINE

Note: Some engines and equipment have remote controls. See the equipment manual for location and

operation of remote controls.

1. Check the oil level. See the How To Check/Add Oil section in the engine owner’s manual.

2. Make sure equipment drive controls, if equipped, are disengaged.

3. Turn the fuel shut-off valve (A), if equipped, to the on position (Figure 4).

4. Move the throttle control (B) to the fast position. Operate the engine in the fast position.

5. Pull out the choke control (C), if equipped, to the choke position.

Note: To start the engine with a dry fuel system (first time starting or after running out of fuel), additional

cranking time in the choke position will be required. This will give the fuel pump time to prime the fuel

system.

6. Push the stop switch (D), if equipped, to the on position.

7. Turn the electric start switch (E) to the on/start position (Figure 4).

8. If the engine fires but will not continue to run, move the choke control (C) to the run position to start the

engine.

NOTICE: To extend the life of the starter, use short starting cycles (five seconds maximum). Wait one

minute between starting cycles. Note: If the engine does not start after repeated attempts, go to

VanguardEngines.com or call 1-800-999-9333 (in USA).

9. As the engine warms up, move the choke control (C) to the run position.

Only operate the stump grinder outdoors and avoid breathing engine exhaust and fumes.

WARNING: Engine exhaust contains carbon monoxide gas that is toxic. Breathing it can cause

unconsciousness and death. Avoid any areas or actions that expose you to carbon monoxide.

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OPERATOR PREPARATION

Each operator must:

•Become familiar with the controls and operation of the stump grinder, preferably under the supervision

of an experienced operator.

•Be at least 18 yrs. of age and be mentally and physically capable of operating the stump grinder safely.

•Have studied the SAFETY AND OPERATING INSTRUCTIONS in this manual.

PERSONAL PROTECTION: For safety, stump grinder operator should wear personal protection

equipment. Keep observers at a safe distance and do not operate if people are near, especially children and

pets.

Wear a face safety shield and hard hat while operating or

observing!

WARNING: The cutter wheel may throw wood chips,

stones and debris.

Wear safety boots and gloves. Wear close-fitting clothing.

Contain long hair. Do not wear jewelry. Wear reflective clothing

if working near traffic.

Wearing adequate hearing (ear) protection while operating or

observing is recommended.

WARNING: Exposure to loud noise is cumulative

Hearing protection devices do not all provide the same level of

protection. Those that completely surround each ear are better

than earplugs. It is important to select a device that is adequate and appropriate for your specific work

environment since the peak noise level varies. A local environmental noise specialist may help you to

determine the level of hearing protection required.

NOISE EMISSION DATA

Machinery Directive declaration

DECLARED DUAL-NUMBER NOISE EMISSION VALUES

in accordance with ISO 4871

Normal Operation

Measured A-weighted sound power level, LWA (ref.

1pW) in decibels

104

Uncertainty, KWA, in decibels

Measured A-weighted sound pressure level, L

(ref.

20µPa) at the operator's position in decibels

Uncertainty, KpA, in decibels

Values determined according to noise test code given in BS EN ISO 4254-1 Annex B using the basic

standard ISO 3744: 1994

NOTE 1 - The sum of a measured noise emission value and its associated uncertainty represents an

upper boundary of the range of values, which is likely to occur in measurements.

Values listed above are rounded to the nearest decibel according to ISO 4871

Noise Emissions Directive result.

Guaranteed sound power level

107

NOTE - The guaranteed sound power level is calculated from unrounded values, and may differ from the values above

30SG OPERATOR’S MANUAL 11/25/13 Page 14 of 24

VIBRATION EMISSION DATA

Declared vibration emission value in accordance with EN 12096: the average measured vibration emission

value is 2.0 m/s². The uncertainty in the measurement is 2.4 m/s². Safety gloves help to isolate the hands

from the vibration, keep them warm and dry, maintain blood circulation, and make operators less

susceptible to vibration induced injury.

The Barreto Stump Grinder, Model E30SG when operated in accordance with its instructions, and tested in

accordance with EN 1033:1995, results in the following vibration emission declared in accordance with EN

12096:1996.

Average measured vibration emission value ahv 2.0 m/s2

Uncertainty

2.4

m/s

These values are suitable for comparison with the vibration emission levels of other tools that have been

obtained using the same test method.

Note: these figures represent the average value over 5 tests, with the figures in the x, y, and z axes

combined in a vector sum (ahv = ahwx

+ ahwy

+ ahwz

). It is this sum that is averaged over all tests.

Since the value stated above is an average of several tests, and is based on data from all three exes, we

consider it to be a reasonable approximation of the true value, particularly considering the uncertainty in

the results (K).

This machine is unlikely to cause hand-arm vibration syndrome, as the average emission level is

equal to or less than 2.5 m/s²

30SG OPERATOR’S MANUAL 11/25/13 Page 15 of 24

DETERMINE LOCATION OF UNDERGROUND UTILITIES

OSHA CFR 29 1926.651 requires that the estimated location of underground utilities be determined before

beginning excavation or an underground drilling operation. When the actual excavation or bore approaches

an estimated utility location, the exact location of the underground installation must be determined by a

safe, acceptable and dependable method. If any utility cannot be precisely located, the appropriate utility

company must shut it off.

Call before you cut. If you do not call, you may cause an accident; suffer injuries or death; cause

interruption of services; damage the environment; and/or incur project delays. Expect to be held liable for

any damages caused, if you fail to call.

DANGER: Buried electric cables or gas lines can cause serious injury or death if struck with cutter

wheel. Always determine location of utilities before operating the machine.

WARNING: Fiber optic cables convey laser light that can injure your eyesight.

To locate utilities before beginning your grinding project, call 811 or 1-888-258-0808 (US. or Canada).

This free service will provide a “One-Call” number for the geographic area that you select. Before you start

any cutting project, be sure to call the local One-Call system in your area and any utility company that does

not subscribe to the One-Call system. The One-Call representative will notify participating utility

companies of your proposed cutting activities. Utilities will then mark their underground facilities by using

the following international marking codes:

Red Electric

Yellow Gas, oil, or petroleum

Orange Communication, telephone, television

Blue Potable water

Green/brown Sewer

White Proposed excavation

Pink Surveying

For areas not represented by One-Call Systems International, contact the appropriate utility companies to

locate and mark the underground installations. Do not rely on visual evidence of underground utilities such

as manhole covers or electrical drop boxes…CALL!

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WORK SITE ASSESSMENT

Examine the work area for any conditions or obstructions that may inhibit cutting or create a safety hazard

for the operator or others. Use the information in this manual combined with good judgment to identify any

hazards to avoid.

In addition to calling to DETERMINE LOCATION OF UNDERGROUND UTILITIES (see previous

section for details) the operator and/or job foreman should visually inspect the work site. Look for electrical

drop boxes; notices of underground placements; manhole covers; recent cutting activity; any evidence of

possible underground placements; banks; overhangs; drop-offs; rocks; tree limbs; wire; uneven terrain; any

existing trenches or holes; and toxic ground conditions.

Only operate stump grinder outdoors and avoid breathing engine exhaust and fumes.

WARNING: Engine exhaust contains carbon monoxide gas that is toxic. Breathing it can cause

unconsciousness and death.

Do not operate stump grinder near any source of flammable dust or vapors.

WARNING: Sparks from the engine exhaust can cause an explosion or fire in a flammable or

explosive atmosphere. Fuel fumes can catch fire or explode.

Allow adequate side and overhead clearances between stump grinder and any objects such as buildings,

fences, and trees.

Adequate lighting is required, daylight or artificial, for safe operation of the stump grinder.

Keep others away. If the job site is near a road or pedestrian path, warn and divert both motorized traffic

and pedestrians. As appropriate, erect barriers, use traffic flag personnel, signs, cones, and lighting devices

to insure safety.

30SG OPERATOR’S MANUAL 11/25/13 Page 17 of 24

CONTACT WITH UNDERGROUND UTILITIES

After LOCATING UNDERGROUND UTILITIES and performing the WORK SITE ASSESSMENT,

accidental contact with a buried utility might still occur. If it does, stop and call 911 for help.

If you cut a wire or cable, assume that you do not know what kind it is. It may be electrical or any one of

several communication lines: telephone, television, or fiber optic. In any case, do not touch it or even look

at the ends of it. Stop cutting and call 911 for help. Do not cut any more until the appropriate utility

company has assessed the situation, taken appropriate action, and informed you that is safe to proceed.

If you strike a pipe, it could be gas, oil, petroleum, water, or sewer. In any case, stop cutting, shut off the

engine, and evacuate the area immediately. Call 911 for help.

Electrical wires or cables: If you think that you may have severed electrical wires, stop cutting and call 911

for help. Keep yourself and other people away from the area.

DANGER: An electric shock could kill you. Assume that any severed wire or cable is HOT with

voltage and do not touch it!

Gas lines: If you think that you may have struck a gas line, shut off the engine and evacuate the area

immediately. Call 911 for help.

DANGER: A gas explosion could kill you. Sparks will likely occur from the cutter head scraping

the metal pipe. If gas leaks out an explosion could easily occur.

Fiber optic cables: If you think that you may have severed a fiber optic cable, do not touch or even look at

the ends of it.

WARNING: Fiber optic cables convey laser light that can injure your eyesight. Call 911 for help.

30SG OPERATOR’S MANUAL 11/25/13 Page 18 of 24

STUMP GRINDING PROCEDURE

1. Raise the cutter head and move the machine into position to cut. Position the machine so the cut head

can swing across near the edge of the stump.

2. Have engine at full throttle (lever forward).

3. Start cutter wheel.

4. Using the cutter head control lever, slowly swing the cutter wheel across the edge of the stump. Adjust

cut depth and swing speed to prevent the engine from bogging and to prevent cutter wheel stall.

5. After the swing is complete, move the machine forward a few inches, then repeat the cutter wheel

swing.

6. Continue making a series of cuts across the top of the stump. Depending on the height of the stump, it

may be necessary to back the machine up and then begin making another series of cuts until the stump

is cut to below ground level.

GRINDING TIPS

Clear the work area of debris, branches and rocks.

Operate the cutter with engine at full throttle.

Listen to engine speed and watch cutter wheel speed. Adjust swing speed and cut depth to maintain high

engine and cutter speed. Avoid bogging the engine and stalling cutter wheel.

It is more efficient to cut the edge of the stump, rather than cutting a wide area. Once the teeth are cutting at

a depth below half the wheel radius, lift the cutter and move the machine forward to begin cutting a new

edge.

SHUT DOWN PROCEDURE

1. Always leave machine parked on a level surface.

WARNING: Do not park on incline. Move the machine to a level

surface and set the parking brake located behind the left hand track

motor, near decal shown. Move the handle down to engage the brake.

2. Unless loaded on a trailer, lower the cutter head to the ground.

3. Reduce the ENGINE THROTTLE to idle.

4. Move the IGNITION KEYED SWITCH to the OFF position to stop the engine, and remove the key.

5. Close the FUEL SHUTOFF VALVE.

Shut off engine and allow it to cool before refueling.

WARNING: Fuel fumes can catch fire or explode. Do not smoke or allow flames or sparks in the

area.

Do not touch the engine, muffler, or any of the hydraulic components until

cool. WARNING: Muffler and engine get hot enough to cause serious

burns. For the safety of yourself and others, allow enough time for the

engine, muffler, and the hydraulic fluid to cool completely before performing

any cleaning or maintenance.

30SG OPERATOR’S MANUAL 11/25/13 Page 19 of 24

JUMP STARTING ENGINE WITH ELECTRIC STARTER