WWW.BEARCATPRODUCTS.COM
STUMP GRINDER
SG340 - 340cc HONDA
ENGLISH ESPAÑOL FRANÇAIS
PN: 12399
Rev. 010111
Companion to 12398
SN Range: B00001 - C09759
OWNER'S MANUAL
Before You Begin
DEAR ECHO BEAR CAT CUSTOMER
Thank you for purchasing a ECHO Bear Cat product. The ECHO Bear Cat line is designed, tested, and manufactured
to give years of dependable performance. To keep your machine operating at peak efciency, it is necessary to adjust
it correctly and make regular inspections. The following pages will assist you in the operation and maintenance of your
machine. Please read and understand this manual before operating your machine.
If you have any questions or comments about this manual, please call us toll-free at 1-800-247-7335.
If you have any questions or problems with your machine, please call or write your local authorized ECHO Bear Cat Dealer.
This document is based on information available at the time of its publication. ECHO Bear Cat is continually making
improvements and developing new equipment. In doing so, we reserve the right to make changes or add improvements
to our product without obligation for equipment previously sold.
PLEASE SEND US YOUR WARRANTY CARD
A warranty card is included in your owner's kit packaged with your machine. Please take the time to ll in the information
requested on the card. When you send your completed card to us, we will register your machine and start your
coverage under our limited warranty.
FOR MACHINE SERVICE OR PARTS:
For service assistance, contact your nearest authorized
ECHO Bear Cat dealer or the factory. For parts, contact
your authorized dealer. Your dealer will need to know the
serial number of your machine to provide the most efcient
service. See below for information on how to identify and
record the serial number for your machine.
FOR ENGINE SERVICE OR PARTS:
For engine service or parts, contact your nearest authorized
engine dealer. ECHO Bear Cat does not handle any parts,
repairs or warranties for engines.
SERIAL NUMBER LOCATION
Please record the serial number in the space provided and
on the warranty and registration card.
MANUFACTURED BY CRARY INDUSTRIES
WEST FARGO, NORTH DAKOTA 58078 U.S.A.
SERIAL NUMBER
MANUFACTURED IN U.S.A.
XXXXXX
ORDERING PARTS
Only genuine ECHO Bear Cat replacement parts should
be used to repair the machine. Replacement parts
manufactured by others could present safety hazards,
even though they may t on this machine. Replacement
parts are available from your ECHO Bear Cat dealer.
Provide the following when ordering parts:
The SERIAL NUMBER of your machine.
The PART NUMBER of the part.
The PART DESCRIPTION.
The QUANTITY needed.
SERIAL NUMBER
HOW TO CONTACT ECHO BEAR CAT
ADDRESS PHONE E-MAIL HOURS
237 NW 12th Street
P.O. Box 849
West Fargo, ND 58078
*Original instructions
© 2012, CRARY INDUSTRIES, ALL RIGHTS RESERVED. PRODUCED AND PRINTED IN THE U.S.A.
800.247.7335
701.282.5520
FAX: 701.282.9522
sales@bearcatproducts.com
service@bearcatproducts.com
Monday - Friday,
8 am to 5 pm
Central Time
LIMITED WARRANTY
This warranty applies to all AG and Outdoor Power Equipment manufactured by Crary Industries.
Crary Industries warrants to the original owner each new Crary Industries product to be free from defects
in material and workmanship, under normal use and service. The warranty shall extend 1 year from date of
delivery for income producing (commercial) applications and 2 years from date of delivery for non-income
producing (consumer) use of the product. The product is warranted to the original owner as evidenced by a
completed warranty registration on le at Crary Industries. Replacement parts are warranted for (90) days
from date of installation.
THE WARRANTY REGISTRATION MUST BE COMPLETED AND RETURNED TO CRARY INDUSTRIES
WITHIN 10 DAYS OF DELIVERY OF THE PRODUCT TO THE ORIGINAL OWNER OR THE WARRANTY
WILL BE VOID.
In the event of a failure, return the product, at your cost, along with proof of purchase to the selling Crary
Industries dealer. Crary Industries will, at its option, repair or replace any parts found to be defective in
material or workmanship. Warranty on any repairs will not extend beyond the product warranty. Repair or
attempted repair by anyone other than a Crary Industries dealer as well as subsequent failure or damage
that may occur as a result of that work will not be paid under this warranty. Crary Industries does not warrant
replacement components not manufactured or sold by Crary Industries.
1. This warranty applies only to parts or components that are defective in material or workmanship.
2. This warranty does not cover normal wear items including but not limited to bearings, belts, pulleys, filters
and chipper knives.
ENGLISH
3. This warranty does not cover normal maintenance, service or adjustments.
4. This warranty does not cover depreciation or damage due to misuse, negligence, accident or improper
maintenance.
5. This warranty does not cover damage due to improper setup, installation or adjustment.
6. This warranty does not cover damage due to unauthorized modifications of the product.
7. Engines are warranted by the respective engine manufacturer and are not covered by this warranty.
Crary Industries is not liable for any property damage, personal injury or death resulting from the unauthorized modication or alteration of a Crary product or from the owner’s failure to assemble, install, maintain or
operate the product in accordance with the provisions of the Owner’s manual.
Crary Industries is not liable for indirect, incidental or consequential damages or injuries including but not
limited to loss of crops, loss of prots, rental of substitute equipment or other commercial loss.
This warranty gives you specic legal rights. You may have other rights that may vary from area to area.
Crary Industries makes no warranties, representations or promises, expressed or implied as to the performance of its products other than those set forth in this warranty. Neither the dealer nor any other person has
any authority to make any representations, warranties or promises on behalf of Crary Industries or to modify
the terms or limitations of this warranty in any way. Crary Industries, at its discretion, may periodically offer
limited, written enhancements to this warranty.
CRARY INDUSTRIES RESERVES THE RIGHT TO CHANGE THE DESIGN AND/OR SPECIFICATIONS
OF ITS PRODUCTS AT ANY TIME WITHOUT OBLIGATION TO PREVIOUS PURCHASERS OF ITS
PRODUCTS.
TABLE OF CONTENTS
DESCRIPTION PAGE
SAFETY .................................................................................................................................... 1
1.1 SAFETY ALERT SYMBOL ..........................................................................................1
1.2 EMISSION INFORMATION ......................................................................................... 1
1.3 BEFORE OPERATING ................................................................................................ 1
1.4 OPERATION SAFETY ................................................................................................. 2
1.5 MAINTENANCE & STORAGE SAFETY......................................................................2
1.6 SAFETY DECALS .......................................................................................................3
ASSEMBLY ..............................................................................................................................4
2.1 ASSEMBLE UPPER HANDLE BAR ............................................................................ 4
2.2 ADD MOTOR OIL ........................................................................................................ 4
2.3 FILL THE FUEL TANK ................................................................................................. 4
FEATURES & CONTROLS ...................................................................................................... 5
OPERATION ............................................................................................................................. 6
4.1 STARTING INSTRUCTIONS ....................................................................................... 6
4.2 STUMP REMOVALL .................................................................................................... 7
SERVICE & MAINTENANCE ................................................................................................... 8
5.1 MAINTENANCE SCHEDULE ...................................................................................... 8
5.2 CHECK OPIL AND CHANGE FILTER ......................................................................... 8
5.3 SHARPEN CUTTING TEETH .....................................................................................9
5.4 SHARPENING GUIDE ................................................................................................ 9
5.5 CHECK & REPLACE DRIVE BELT ........................................................................... 10
5.6 ADJUST ENGINE SHUTDOWN LEVER ................................................................... 10
TROUBLESHOOTING ........................................................................................................... 11
SPECIFICATIONS .................................................................................................................. 12
BOLT TORQUE ................................................................................................................ 13
OPTIONS ................................................................................................................................ 12
1
Section
SAFETY
1.1 SAFETY ALERT SYMBOL
The Owner/Operator's manual uses this symbol to alert
you of potential hazards. Whenever you see this symbol,
read and obey the safety message that follows it. Failure
to obey the safety message could result in personal injury,
death or property damage.
DANGER
Indicates an imminently hazardous situation that, if not
avoided, will result in death or serious injury.
combustion engine that burns gasoline or diesel fuel
(hydrocarbons). Therefore, your power equipment must
be equipped with a spark arrester mufer in continuous
effective working order. The spark arrester must be
attached to the engine exhaust system in such a manner
that ames or heat from the system will not ignite ammable
material.
Failure of the owner/operator of the equipment to comply
with this regulation is a misdemeanor under California law
and may also be a violation of other state and/or federal
regulations, laws, ordinances, or codes. Contact your
local re marshal or forest service for specic information
about which regulations apply in your area.
The standard mufer installed on the engine is not equipped
with a spark arrester. One must be added before using
this machine in an area where a spark arrester is required
by law. Contact the local authorities if these laws apply to
you. See your authorized engine dealer for spark arrester
options.
1.3 BEFORE OPERATING
ENGLISH
WARNING
Indicates a potentially hazardous situation that, if not
avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that, if not
avoided, may result in minor or moderate injury.
1.2 EMISSION INFORMATION
Under California Law and the laws of several other
states, you are not permitted to operate an internal
combustion engine using hydrocarbon fuels on any forest
covered, brush covered or grass covered land or on land
covered with grain, hay or other
ammable agricultural crops,
without an engine spark arrester
in continuous effective working
order.
The engine on your power
equipment, like most outdoor
power equipment, is an internal
1. Read and understand this owner’s manual. Be
completely familiar with the controls and the proper
use of this equipment.
2. Familiarize yourself with all of the safety and operating
decals on this equipment and on any of its attachments
or accessories.
3. Keep safety decals clean and legible. Replace missing
or illegible safety decals.
4. Obtain and wear safety glasses
and use hearing protection at
all times when operating this
machine.
5. Avoid wearing loose fitted
clothing. Never operate this
machine while wearing clothing
with drawstrings that could wrap around or get caught
in the machine.
6. Do not operate this machine if you are under the
influence of alcohol, medications, or substances that
can affect your vision, balance or judgement. Do not
operate if tired or ill. You must be in good health to
operate this machine safely.
STUMP GRINDER
1
SAFETY
7. Do not operate this equipment in the vicinity of
bystanders. Keep the area of operation clear of all
persons, particularly small children. It is recommended
that bystanders keep at least 50 feet (15 meters) away
from the area of operation.
8. Do not allow children to operate this equipment.
9. Use only in daylight or good artificial light.
10. Do not run this equipment in an enclosed area. Engine
exhaust contains carbon monoxide gas, a deadly
poison that is odorless, colorless and tasteless. Do not
operate this equipment in or near buildings, windows
or air conditioners.
11. Always use an approved fuel container. Do not remove
gas cap or add fuel when engine is running. Add fuel
to a cool engine only.
12. Do not fill fuel tank indoors. Keep open flames, sparks,
smoking materials and other sources of combustion
away from fuel.
13. Do not operate machine without shields in place.
Failure to do so may cause serious injury or death.
14. Keep all guards, deflectors, and shields in good
working condition.
15. Before inspecting or servicing any part of this machine,
shut off the machine and make sure all moving parts
have come to a complete stop. Disconnect the battery
and remove the ignition key where applicable.
16. Check that all screws, nuts, bolts, and other fasteners
are secured, tightened and in proper working condition
before starting the machine.
1.4 OPERATION SAFETY
1. Always stand clear of discharge area when operating
this machine. Keep face and body away from
discharge openings.
2. Keep hands and feet out of cutting area while machine
is operating to avoid serious personal injury. Stop
and allow machine to come to a complete stop before
clearing obstructions.
3. Set up your work site so you are not endangering traffic
or the public. Take great care to provide adequate
warnings.
4. Do not allow the cutter teeth to come into contact
with metal, rocks, bottles, cans or any other foreign
material.
5. Ensure debris does not blow
into traffic, parked cars, or
pedestrians.
6. Keep the machine clear of debris
and other accumulations.
7. Do not run the engine indoors.
8. Maintain firm control of the machine during operation
to prevent tipping. Always be sure of your footing.
9. Immediately stop the engine by releasing bottom bail if
the cutter teeth strike any foreign object and allow the
blades to come to a complete stop before removing
object.
10. Stop engine immediately by releasing bottom bail if
the machine starts vibrating abnormally and correct
the problem before restarting.
11. Release bottom bail to stop engine before leaving
machine unattended.
12. Shut off the power source, and make sure all moving
parts have come to a complete stop before inspecting
or servicing any part of the machine.
13. Do not allow processed material to build up in the
discharge area. This may prevent proper discharge.
14. Shut off machine immediately if the machine becomes
clogged, the cutting mechanism strikes any foreign
object, or the machine starts vibrating or making an
unusual noise. Shut off the machine, remove the
ignition key and make sure all moving parts have come
to a complete stop. After machine stops:
• Inspect for damage.
• Replace or repair any damaged parts.
• Check for and tighten any loose parts.
15. Check blade bolts for proper torque after every eight
hours of operation. Check blade sharpness daily and
re-sharpen as required to keep blades sharp. Failure
to do so may cause poor performance, damage or
personal injury and will void the machine warranty.
1.5 MAINTENANCE & STORAGE SAFETY
1. Before inspecting, servicing, storing, or changing
an accessory, shut off the machine and make sure
all moving parts have come to a complete stop.
Disconnect the battery and remove the ignition key
where applicable.
2. Replace any missing or unreadable safety decals.
Refer to the safety decal section for part numbers.
3. Allow machine to cool before storing in an enclosure.
4. Store the machine out of reach of children and where
fuel vapors will not reach an open flame or spark.
5. Never store this machine with fuel in the fuel tank
inside a building where fumes may be ignited by an
open flame or spark. Ignition sources can be hot water
and space heaters, furnaces, clothes dryers, stoves,
electric motors, etc.
6. Drain the fuel and dispose of it in a safe manner for
storage periods of three months or more.
2
STUMP GRINDER
SAFETY
1.6 SAFETY DECALS
Familiarize yourself with all of the safety and operational decals on the machine and the associated hazards. See the
engine owner’s manual or contact the engine manufacturer for engine safety instructions and decals. Make certain that
all safety and operating decals on this machine are kept clean and in good condition. Decals that need replacement
must be applied to their original locations.
PN 14942-00
ENGLISH
PN 12172
READ AND UNDERSTAND THIS OWNER/OPERATORS
MANUAL. BE COMPLETELY FAMILIAR WITH THE CONTROLS
AND THE PROPER USE OF THIS EQUIPMENT
OBTAIN AND WEAR SAFETY GLASSES AND USE HEARING
PROTECTION AT ALL TIMES WHEN OPERATING THIS
MACHINE.
BEFORE INSPECTING OR SERVICING ANY PART OF THIS
MACHINE, SHUT OFF POWER SOURCE, REMOVE THE
KEY, DISCONNECT SPARK PLUG WIRE FROM SPARK PLUG
AND MAKE SURE ALL MOVING PARTS HAVE COME TO A
COMPLETE STOP.
PN 12254
KEEP HANDS AND FEET OUT OF INLET AND DISCHARGE
OPENINGS WHILE MACHINE IS OPERATING TO AVOID
SERIOUS PERSONAL INJURY. STOP AND ALLOW MACHINE
TO COME TO A COMPLETE STOP BEFORE CLEARING
OBSTRUCTIONS.
STUMP GRINDER
3
2
ASSEMBLY
Section
2.1 ASSEMBLE UPPER HANDLE BAR 2.2 ADD MOTOR OIL
1. Remove machine from shipping crate.
2. Loosen the two handle knobs and bolts attaching the
upper handle bar.
3. Rotate the upper handle bar back to align with the
lower handle bar support bracket.
4. Retighten the handle bar bolts with the handle knobs.
Refer to figure below.
Loosen these
knobs to adjust
handle bar
Check the oil level and, if needed, ll the engine crankcase
with the type and amount of oil specied in the engine
owner’s manual.
2.3 FILL THE FUEL TANK
WARNING
Gasoline and diesel fuels are highly
ammable and their vapors are explosive.
To prevent personal injury or property
damage:
Store fuel only in approved containers,
in well ventilated, unoccupied buildings,
away from sparks or ames. A container
with a capacity of 2 gallons or less with a pouring
spout is recommended. Do not ll the fuel tank while
the engine is hot or running, since spilled fuel could
ignite if it comes in contact with hot parts or sparks
from ignition. Do not start the engine near spilled fuel.
Never use fuel as a cleaning agent. DO NOT MIX OIL
WITH FUEL.
Use only those types of fuels that are recommended in
your engine owner’s manual.
To add fuel:
1. Stop engine, wait for all parts to stop moving and
disconnect spark plug wire. Remove key from key
switch. Allow the engine and muffler to cool for at least
three minutes.
2. Clean area around fuel fill cap and remove cap.
3. Using a clean funnel, fill fuel tank to 1/2” below bottom
of filler neck to provide space for any fuel expansion.
Install fuel fill cap securely and wipe up any spilled
gasoline.
4
STUMP GRINDER
3
Section
FEATURES & CONTROLS
1. FUEL CAP
Open to rell fuel.
2. RECOIL STARTER
Pull recoil starter handle out smoothly to start engine.
Repeat if necessary.
3. THROTTLE LEVER
The throttle adjusts engine speed. Move the throttle lever
to choke position when starting the engine. After the engine is warmed up, move the throttle lever to run.
4. BOTTOM BAIL
Hold the bottom bail up to the handle during operation.
Releasing the bottom bail will stop the engine.
5
4
5. TOP BAIL
The top bail controls the left wheel brake. When grinding
stumps, depress the top bail to the handle so that the
Stump Grinder can be pivoted from side to side on the
left wheel.
6. TOP COVER
Remove top cover to check and change drive belt.
7. SCREENED OPENING
Watch through the opening to accurately position the
stump grinder during operation.
8. CARBIDE CUTTING TEETH
The tip of the cutting teeth is made of carbide, which is
many times harder than steel. The sharpness of the teeth
should be checked every eight operating hours.
ENGLISH
3
1
STUMP GRINDER
2
6
7
8
5
4
Section
OPERATION
DANGER
• Become familiar with the safety instructions in this
manual before starting the Stump Grinder.
• WEAR EYE PROTECTION at all times when
operating the Stump Grinder.
• Do not operate without all guards in place.
CAUTION
Fill engine with oil before starting. Make sure machine
is level when lling oil and fuel. See engine owners
manual for amount and type of oil to use.
4.1 STARTING INSTRUCTIONS
Move machine to a clear, level area outdoors before
starting. Bystanders should remain at least 50 ft.
away from the operating area.
NOTE
It may not be necessary to use full choke when restarting a warm engine after a short shutdown. Move
lever to run or partial choke if engine fails to start.
OFF
SLOW
RUN
FAST
1. Check engine oil level and ll if necessary. See engine
manual for lling and maintenance instructions.
2. Fill fuel tank with fresh, clean unleaded fuel.
3. Make sure engine fuel valve is in ON position.
4. Place engine throttle lever in the choke position
5. Pull the bottom bail up to the handle. Hold the bottom bail up during operation. Releasing the bail will
automatically stop the engine.
6. Grasp the recoil starter handle and pull out smoothly
to start the engine. Repeat if necessary.
7. Move choke lever to run position after engine starts.
The engine may need partial choke until it is fully
warmed up.
Throttle decal description
Hold bottom bail up to
keep engine running
Release bottom bail
to stop engine
Handle decal description
CHOKE
Pull top bail down
to engage left
wheel brake
6
STUMP GRINDER
4.2 STUMP REMOVALL
OPERATION
WARNING
• Follow all safety instructions listed in this manual.
• WEAR EYE PROTECTION at all times when
operating the Stump Grinder.
• Do not operate without all guards in place.
1. Position the stump grinder so the cutter head is adjacent to the stump. Start the stump grinder and hold up the
bottom bail so it doesn't shut off.
2. Pull the top bail to the handle and hold it there to activate the left wheel brake, holding it so it does not turn.
3. Gradually, using the locked left tire as a pivot point, slowly pivot the cutter head until the cutting teeth contact the
stump.
4. Pivot the stump grinder on the left wheel in a slow, smooth sweeping motion from left to right as the teeth grind the
stump. Do not force the cutting teeth. Check position by watching through the screen opening.
5. Grind the stump down to a maximum of 4 inches below ground level.
6. Release bottom bail to shut down engine.
7. The carbide blades must be sharpened regularly. Check for dullness every eight hours of operating time, or when it
becomes noticeably harder to push the stump grinder into the stumps. See Section 5.3 for sharpening instructions.
TOP BAIL-
BRAKE CONTROL
THROTTLE LEVER
ENGLISH
STUMP GRINDER
BOTTOM BAIL ENGINE SHUTDOWN
CONTROL
7
5
SERVICE & MAINTENANCE
Section
5.1 MAINTENANCE SCHEDULE
The items listed in this service and maintenance schedule
are to be checked, and if necessary, corrective action
taken. This schedule is designed for units operating under
normal conditions. If the unit is operating in adverse or
severe conditions, it may be necessary for the items to be
checked and serviced more frequently.
SEE ENGINE OWNER’S MANUAL FOR FURTHER
ENGINE MAINTENANCE AND TROUBLESHOOTING
INFORMATION.
SERVICE AND MAINTENANCE SCHEDULE
COMPONENT MAINTENANCE REQUIRED
AIR CLEANER CHECK AND CLEAN (1)
AIR INTAKE CLEAN (1)
ENGINE OIL CHANGE (1)
FUEL FILTER REPLACE
SPARK PLUG CHECK CONDITION AND GAP
ENGINE OIL CHECK/FILL
FUEL TANK CHECK/FILL
CUTTING TEETH CHECK SHARPNESS
ALL INTERNAL AND
EXTERNAL NUTS AND BOLTS
ENTIRE MACHINE CLEAN
DRIVE BELT CHECK
CHECK TIGHTNESS
WARNING
Disconnect the spark plug wire from the spark plug
and make sure all moving parts are completely
stopped before inspecting or servicing any part of this
machine. The cutting teeth are sharp! Use care when
working on the machine to avoid injury.
FREQUENCY
REFER TO
ENGINE
OPERATOR’S
MANUAL
BEFORE
EACH
USE
EVERY
8
HOURS
EVERY
25
HOURS
BELT TENSION CHECK
BELT/PULLEY ALIGNMENT CHECK
(1) PERFORM MORE FREQUENTLY UNDER EXTREMELY DUSTY CONDITIONS.
As the Limited Warranty states, failure by the Owner to perform normal maintenance will void
the machine's warranty. The aggressive, high-speed nature of stump removal REQUIRES THE
OWNER TO PERFORM THE ABOVE LISTED NORMAL MAINTENANCE. Special consideration to
maintain and re-torque the CUTTING TEETH AND ALL INTERNAL AND EXTERNAL NUTS AND
BOLTS is the sole responsibility of the Owner. Failure by the Owner to do so shall be cause for
denial of warranty.
5.2 CHECK OIL AND CHANGE FILTER
Check oil and change the lter as recommended in the engine owner's manual.
8
STUMP GRINDER
SERVICE & MAINTENANCE
Sharpen
WARNING
Before inspecting or servicing any part of this machine, shut off power source,
and make sure all moving parts have come to a complete stop.
5.3 SHARPEN CUTTING TEETH
The carbide cutting teeth stay sharp for approximately
two to eight hours of operation. A person familiar with
sharpening carbide should use the following instructions
to sharpen the cutting teeth when they become dull.
TO SHARPEN THE CARBIDE TEETH:
1. Remove cutting teeth from cutter assembly by
removing the 1/2" bolt and washer from the spindle on
bottom disk and the twelve (12) 3/8" X 3/4" carriage
bolts and nylock nuts. See diagram below.
5.4 SHARPENING GUIDE
• Dry grinding is suggested when sharpening to reduce
the chance of cracking from insufficient coolants. Dry
grinding also allows better visibility and longer wheel
life due to better grinding action control.
• Use a silicon carbide grinding wheel for the carbide
portions of the teeth. Grinding the steel portions of the
teeth with a carbide wheel is possible, but the wheel
lasts longer if an aluminum oxide wheel is used for
the steel portions. The following wheels are recom-
mended:
• Silicon carbide 60 grit for carbide.
• Aluminum oxide 24 grit for steel.
• Move cutting teeth constantly when in contact with the
grinding wheel surface to reduce heat concentration,
which may damage the teeth. This method will reduce
uneven wheel wear. Refer to diagram below.
• Never place the cutting teeth in water immediately
after grinding; the carbide tip may crack. Carbide is
many times harder than steel, but does not have the
same thermal characteristics.
ENGLISH
2. Grind teeth to sharpen, maintaining original angles.
Duplicate all clearance and relief angles. The cutting
teeth last longer if the original contour of the tip is
maintained as closely as possible during grinding. Be
sure to leave adequate steel to support the carbide
(see below).
3. Replace sharpened cutting teeth on spindle.
this surface
11°
15°
STUMP GRINDER
Position tip as shown here to sharpen. Use a side-to-side
motion while grinding to keep original radius.
9
SERVICE & MAINTENANCE
WARNING
Before inspecting or servicing any part of this machine, shut off power source,
and make sure all moving parts have come to a complete stop.
5.5 CHECK & REPLACE DRIVE BELT
This machine is equipped with a 3VX530 2-groove banded
belt. Check the condition of the drive belt annually or after
every 30 hours of operation, whichever comes rst. If the
belt is cracked, frayed, or worn, replace it.
TO REPLACE THE DRIVE BELT:
1. Shut off engine and allow all moving parts to come to
a complete stop.
2. Take off the top cover of the stump grinder by removing the four bolts on the sides.
4. Loosen the nut on the back of the machine (see
below) and push the engine slightly forward to take
tension off the drive belt.
Loosen this nut
View of drive belts with top cover off
3. Loosen the four engine mounting bolts. Two bolts are
located on top of the engine mount plate (see below).
Two are located on the other side of the engine under
the engine mount plate.
Loosen these bolts
5. Remove drive belt and discard.
6. Install new belt.
7. Tighten the nut at the back of the machine until there
is a 1/32" gap between the idler spring coils (see
Engine
Pulley
Idler Arm
Idler Pulley
Idler Spring
Spindle Pulley
below).
8. Tighten engine mounting bolts
Loosen these two bolts and two on the other side
under the plate
10
9. Reinstall top cover.
5.6 ADJUST ENGINE SHUTDOWN LEVER
When the bottom bail is released, the engine should shut
down every time. Adjust the cable so when the shutdown
control just begins to move, the cable will begin to move
the lever on the end of it.
STUMP GRINDER
6
Section
TROUBLESHOOTING
PROBLEM PROBABLE CAUSE SUGGESTED REMEDIES
Broken or damaged belt. Replace belt.
Cutting teeth do not turn.
Cutting is slow or rough.
Stump grinder requires
excessive power or stalls.
Drive belt squealing or
smoking.
Broken drive shaft. Repair drive shaft.
Failed bearings. Repair bearings.
Dull cutter teeth. Sharpen or replace cutter teeth.
Not using brake control. Use brake control to help pivot machine.
Stump is too large. Limit size of stump to 18 inches in diameter.
Dull cutter teeth. Sharpen or replace cutter teeth.
Drive belt is loose or worn. Replace or tighten drive belt.
Stump is too large. Limit size of stump.
Cutting swath is too large. Limit size of swath.
ENGLISH
Engine won’t start or is hard
to start.
Drive belt is loose or worn. Replace drive belt.
Gas tank is empty. Fill gas tank.
Spark plug wire is disconnected. Connect loose wire to spark plug.
Spark plug is defective. Replace spark plug.
Remove gas line at carburetor and check for
Gas line is obstructed.
Dirty, stale, water-contaminated gas.
Flooded engine.
Dirty or plugged air cleaner. Clean air cleaner and replace.
obstruction. Drain gas tank and rell with fresh,
clean gasoline.
Drain tank and ll with fresh, clean unleaded
gasoline.
Put throttle control in run position and crank engine
several times to clear out excess gas.
STUMP GRINDER
11
7
SPECIFICATIONS
Section
SPECIFICATIONS SG340
ENGINE SIZE GRINDER WEIGHT TIRES
WHEEL
BASE
CONTROL
VIBRATION
LEVEL
NOISE LEVEL
340cc
HONDA
8
Section
76292-00 CUTTING TEETH REPLACEMENT KIT
52” X 23” X 44”
12 CARBIDE
TEETH
195 LBS
480/400-8”
PNEUMATIC
OPTIONS
PART NUMBER DESCRIPTION
22”
<1.9 m/s
2
87 dB”
12
STUMP GRINDER
BOLT TORQUE
The tables below are for reference purposes only and their use by anyone is entirely voluntary, unless otherwise noted.
Reliance on their content for any purpose is at the sole risk of that person and any loss or damage resulting from the
use of this information is the responsibility of that person.
SAE
SAE - 2
SAE - 5
SAE - 8
BOLT DIAMETER
Grade
and
Head
Markings
ENGLISH
BOLT DIAMETER
(A)
1/4" 7.5 5.5 11 8 16 12
5/16" 15 11 23 17 34 25
3/8" 27 20 41 30 61 45
7/16" 41 30 68 50 95 70
1/2" 68 50 102 75 149 110
9/16" 97 70 149 110 203 150
5/8" 122 90 203 150 312 230
3/4" 217 160 353 260 515 380
7/8" 230 170 542 400 814 600
1" 298 220 786 580 1220 900
1-1/8" 407 300 1085 800 1736 1280
1-1/4" 570 420 2631 1940 2468 1820
METRIC
Grade
and
Head
Markings
4.8
4.8
SAE 2 SAE 5 SAE 8
N.m Ft-lb. N.m Ft-lb. N.m Ft-lb.
8.8
8.8 10.9
BOLT TORQUE *
10.9
12.9
12.9
ENGLISH
A
BOLT DIAMETER
A
METRIC
BOLT DIAMETER
(A)
M3 0.5 0.4 - - - - - M4 3 2.2 - - - - - M5 5 4 - - - - - M6 6 4.5 11 8.5 17 12 19 14.5
M8 15 11 28 20 40 30 47 35
M10 29 21 55 40 80 60 95 70
M12 50 37 95 70 140 105 165 120
M14 80 60 150 110 225 165 260 190
M16 125 92 240 175 350 255 400 300
M18 175 125 330 250 475 350 560 410
M20 240 180 475 350 675 500 800 580
M22 330 250 650 475 925 675 1075 800
M24 425 310 825 600 1150 850 1350 1000
M27 625 450 1200 875 1700 1250 2000 1500
4.8 8.8 10.9 12.9
N.m Ft-lb. N.m Ft-lb. N.m Ft-lb. N.m Ft-lb.
* Torque value for bolts and capscrews are identied by their head markings.
Torque gures indicated above are valid for non-greased or non-oiled threads and heads unless otherwise specied. Therefore,
do not grease or oil bolts or capscrews unless otherwise specied in this manual. When using locking elements, increase torque
values by 5%.
BOLT TORQUE *
STUMP GRINDER
13
ECHO BEAR CAT
www.bearcatproducts.com
237 NW 12th Street, West Fargo, ND 58078-0849
Phone: 701.282.5520 • Toll Free: 800.247.7335 • Fax: 701.282.9522
E-mail: service@bearcatproducts.com • sales@bearcatproducts.com
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