SG13-968999353
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Operator ’s Manual
MANUAL NO. 539109280 REV. 03 (12/01/05)
Models:
SG13A/CE/968999239
SG13/968999353
©2005 Husqvarna.
All Rights Reserved.
Printed Beatrice, Nebraska
2
TABLE OF CONTENTS
Stump Grinder SG13A
Introduction ................................................ 4
Congratulations ..................................... 4
Use ........................................................ 4
Insure your machine .............................. 4
Good service .........................................4
Serial number ........................................ 4
Symbols and decals ................................... 5
Location of decals.................................. 6
Translation of instructions...................... 6
Safety instructions..................................... 7
General use ........................................... 7
Controls ................................................. 9
Operation...............................................10
Movement/Transport.............................. 11
Storage .................................................. 11
Children .................................................11
Fuel System ..........................................12
Maintenance .......................................... 13
Protective Equipment ...............................14
Personal Equipment .............................. 14
Set-Up ......................................................... 15
Equipment set-up .................................. 15
Controls ...................................................... 18
Presentation ..........................................18
Main Components and
Operating Instructions ...........................18
Engine ................................................... 19
Cutting Unit ............................................ 22
Operation.................................................... 24
Starting the Engine................................. 24
Normal Shutdown .................................. 26
Shutdown in Emergency Situations....... 26
Before You Start..................................... 27
Using Y our S tump Grinder ..................... 28
Operating on Hills .................................. 30
Transport ............................................... 30
Maintenance............................................... 31
Maintenance Schedule ........................... 31
Cleaning the Cyclone Filter .................... 32
Replacing the Air Filter............................33
Cleaning the Sludge Reservoir............... 34
Idle Adjustment ....................................... 34
Ignition System....................................... 35
Adjusting the Drive Belt ..........................36
Disassembling & Reassembling
the Blade, Pockets & Teeth .................... 37
Removing & Refitting the Wheels ..........38
Adjusting the Brake................................. 38
Two Minute Rule..................................... 39
Cleaning & Washing............................... 39
Lubrication ................................................. 40
Lubrication Schedule.............................. 40
Lubricating the Cables............................ 42
Troubleshooting ........................................ 43
Storage ....................................................... 45
Winter Storage .......................................45
Service ................................................... 45
Technical Data ............................................ 46
Wiring Diagram........................................... 47
Service Journal....................................... 48
Delivery Service ..................................... 48
After the First 20 Hours ..........................48
3
INTRODUCTION
Congratulations
Thank you for purchasing a Husqvarna stump grinder. Through your confidence in us, you have
chosen an exceptionally high quality product.
This manual is a valuable document. It describes your new Husqvarna machine. Read the manual
carefully before attempting to use the machine. Following the instructions (use, service, maintenance, etc.) can considerably increase the life-span of your machine and even increase its resale
value. Please contact your dealer for more information.
If you sell your Husqvarna machine, make sure to give the operator’s manual to the new owner.
Use
The stump grinder is used to remove tree stumps. By moving the blade in sweeping movements
laterally over the top and front of the stump, you can gradually grind it away . Read the chapter
“Safety instructions” before you use the machine for the first time.
Insure your machine
Contact your insurance company to check on insurance coverage for your new machine. You
should have all-inclusive insurance for liability , fire, damage and theft.
Good service
Husqvarna products are sold all over the world and only in specialized retail trade with complete
service. This ensures that you as a customer receive only the best support and service. Before the
machine was delivered it underwent inspection and was adjusted by your dealer. When you need
spare parts or support in service questions, guarantee issues, etc., please consult the following
professional:
This Operator’s Manual belongs to machine with
serial number:
Engine number:
Serial number
The serial number can be found on the printed plate attached to the frame in front of engine. The
plate includes the following information:
• The machine’s type designation (MODEL).
• The machine’s serial number (S/N).
Please state the type designation and serial number when ordering spare parts.
The engine’s serial number is punched in the crankcase under the oil level guard.
The engine type is specified on the crankcase to the right of the oil level guard but also appears on
the decal on the starter .
Please state these when ordering spare engine parts.
4
SYMBOLS AND DECALS
WARNING!
Xxxx xxx xxxx xx xxxx x xxxx.
IMPORT ANT INFORMA TION
Xxxx xxx xxxx xx xxxx x xxxx.
Used in this publication to notify the reader of a risk
of personal injury, p articularly if the reader DOES
NOT follow the instructions given in the manual.
Decals and machine-bound instructions
6
Used in this publication to notify the reader of a risk
of material damage, particularly if the reader DOES
NOT follow the instructions given in the manual.
Used also when there is a potential for misuse or
misassembly.
5
9
10
8
3
2
12
4
Decals that are missing or illegible should be replaced before using the machine.
1. Husqvarna logo
2. Husqvarna logo
3. General precautions
4. Exhaust warnings
11
7
7. Model designation SG13A
8. Engine switch on the handle
9. Throttle
10. Handle adjustment
1
5. Use ear and eye protection
6. DANGER risk for injury from cutter blade
1 1. No step
12. Sound power
5
Location of decals
SYMBOLS AND DECALS
9
5
10
4
11
7
6
12
3
8
2
Translation of instructions
Decal 3
Important information
Read and make sure you understand the
Operator’s Manual before use or maintenance.
To obtain a replacement manual, please contact
your dealer .
Observe all safety instructions; otherwise you may
injure yourself or others around you.
Make sure that the machine is in serviceable condition prior to use.
Stop the engine and wait until all machine movement comes to a standstill before service, adjustment or cleaning.
Do not run the engine in poorly ventilated spaces.
Make sure nobody is in the vicinity of the machine
before starting and during use.
Avoid slopes that are too steep to use the ma-
chine safely .
Clear any debris prior to use.
1
Decal 4
Warning
Engine exhaust, some of its constituents and certain vehicle components contain or emit chemicals
considered by the Sate of California to cause cancer, birth defects or other reproductive harm. The
engine emits carbon monoxide, which is a colorless, poisonous gas. DO NOT use the machine in
enclosed spaces.
Decal 5
Wear goggles or safety glasses and ear protections when using the unit.
Decal 6
There is DANGER to your feet from the cutting
blades.
Decal 8
O = off, I = on
Decal 9
Rabbit = Fast engage clutch.
Turtle = Slow disengage clutch.
Decal 10
Handle adjustment.
Decal 11
No step.
Decal 12
Sound power rating.
6
SAFETY INSTRUCTIONS
General use
The object of this manual is to help you use your
Husqvarna machine safely and to give you
information about how to maintain your machine.
Please read the manual carefully before attempting
to use the machine.
If after reading the operator’s manual you are still
unsure about the safety risks associated with use
of the machine, you should not use the machine.
Please contact your dealer for more information.
These safety instructions only address the basics
for safe use. It would be impossible in the safety
instructions to describe all possible risk situations
that could arise when using the machine. Y ou can,
however, prevent accidents by always using
common sense.
To obtain extra copies of the operator’s manual,
please contact your dealer .
WARNING!
Under no circumstances may the original
design of the machine be modified
without written approval from the
manufacturer. Such modifications not
only affect the performance and
durability of the machine but may even
pose a safety risk for users and those in
the vicinity. Unauthorized modifications
to the design of the machine may
absolve the manufacturer from liability
for any resulting personal injury or
property damage. Modifying the machine
without written approval from the
manufacturer may void the guarantee.
IMPORTANT INFORMATION
Do not use the machine until you have
read the operator’s manual carefully and
understand the instructions given. All
maintenance work or adjustments not
described in this manual must be
performed by an authorized Husqvarna
service workshop.
WARNING!
The stump grinder can be dangerous if
used improperly or with out due care and
can lead to serious accidents, in the
worst cases even fatal accidents. It is
very important that you read this
operator’s manual and understand the
instructions before you attempt to use
the machine.
• Read this manual carefully and make sure you
understand it before using the machine or
performing any maintenance. If the user cannot
read this manual, it is the responsibility of the
machine owner to explain the contents to the
user.
8011-208chg
Read this manual carefully before starting the machine.
7
SAFETY INSTRUCTIONS
• Follow all safety instructions. Failure to do so
may result in injury to yourself or others.
• Accident prevention regulations, other general
safety regulations, occupational safety rules
and traffic regulations must be followed without
fail.
• All users shall be trained in use of the machine.
The owner is responsible for training users.
• Engage an authorized Husqvarna workshop
for all service and repairs not described in this
manual.
• Husqvarna original spare parts are designed
and specified to maintain high quality and
correct fit for optimal durability and life-span.
From a safety point of view, you should only
use Husqvarna original spare parts.
• Learn how to use the machine and its controls
safely and learn to recognize the safety decals.
• Only use the machine for removing tree stumps.
It is not intended for any other use.
• Check that the machine is in serviceable
condition prior to use; see the chapter
”Maintenance/Maintenance schedule”.
WARNING!
The engine can become very hot. To
avoid being burned, you must turn off the
engine and wait until all parts have
cooled before touching the engine.
WARNING!
Overexposure to vibration may lead to
circulatory or nerve damage, particularly
in people who have impaired circulation.
Contact your doctor if you experience
symptoms that could have been caused
by overexposure to vibration. Examples
of common symptoms include numbness,
pain, muscle weakness, change of skin
color or an uncomfortable feeling of
tingling. These symptoms appear most
frequently in the fingers, hands or wrists.
• Only use the machine in daylight or in other welllit conditions. Keep the machine a safe distance
from holes or other irregularities in the ground.
Pay attention to other possible risks.
• Only allow the machine to be used by adults
who are familiar with its use.
• Never allow children or persons not trained in
the use of the machine to use or service it.
Local laws may regulate the age of the user.
• People and animals can distract you causing
you to lose control of the machine. For this
reason, you should always concentrate and
focus on the task at hand.
• Never leave the machine unsupervised with the
engine running.
• Make sure that other people are nearby when
you are using the machine so that you can call
for help should an emergency arise.
• The machine is tested and approved only with
the equipment originally provided or
recommended by the manufacturer.
IMPORTANT INFORMATION
Never use a stump grinder that is
damaged or incorrectly adjusted. Never
use the stump grinder if any component
is missing or if it is not properly
assembled. Check that the cutting tools
stop rotating when you reduce the throttle.
If you find yourself in a situation where you
are not sure what to do, always seek
expert assistance. DO NOT try to attack
any problem you are not qualified to
resolve.
8
SAFETY INSTRUCTIONS
Preparations
• Make sure that you always have first aid
equipment at hand when using the machine.
• Make sure nobody else is in the vicinity of the
machine when you start the engine, engage the
drive or run the machine.
• Make sure animals and people maintain a safe
distance from the machine.
• Clear the area of objects such as stones, toys,
steel wire, etc. that could become caught in
moving machine parts and thrown out.
• Find and locate all fixed objects in the ground,
such as sprinkler systems, poles, water valves,
bases for washing lines, etc. Be certain to
check for hidden electrical cables or similar in
the surface of the lawn. Always run the machine
around these objects. Never intentionally run
the machine over foreign objects.
• Check that the dead man’s grip and all guards
are fitted and functioning. DO NOT use the
machine if it is not working properly .
• Makes sure no clothing, long hair or jewelry can
catch in moving machine parts.
• Check that all safety decals are in place. See
the chapter “Location of decals”.
• Use mouth protection, protective gloves with
good grip and protective clothing which you can
move unrestricted. Also use leg protection to
protect your legs from sparks and the cutting
tools.
8011-198
Clear the work area before beginning work.
8011-189
Use appropriate equipment.
• Never use the machine when barefoot. Always
wear protective shoes or protective boots with
anti-slip and preferably with steel toes.
• Use a helmet with a full face visor or a mesh
visor and protective glasses. Wear approved
ear-protection when running the machine. Ask
your dealer about approved protective glasses,
ear protection and recommended helmets.
WARNING!
Always use approved protective clothing
and approved protective equipment when
using the machine. Protective clothing and
protective equipment cannot eliminate
the risk of accidents, but wearing proper
clothing and the correct equipment will
reduce the degree of injury should an
accident occur. Ask your dealer about
approved protective clothing and
approved protective equipment
recommended by Husqvarna.
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SAFETY INSTRUCTIONS
Operating
• DO NOT use the machine on grades of more
than 10°.
• DO NOT use the machine if you are tired, if
you have consumed alcohol, or if you are taking
other drugs or medication that can affect your
vision, judgment or coordination.
• Never use the machine indoors or in spaces
lacking proper ventilation.
• Make sure you have a proper foothold when
using the machine, particularly when backing.
Walk, don’t run. Never work on wet grass. Poor
traction may cause you to slip.
• Keep your hands and feet away from moving
parts.
• Keep your hands and feet away from the work
tools.
• DO NOT use your feet or other parts of your
body to gain greater bearing pressure against
the stump.
8011-209chg
The engine exhaust is poisonous. Never run the engine indoors.
• Smoking, open flames or sparks in the vicinity
of the machine are strictly forbidden. Gasoline
is extremely flammable and carelessness in
handling can result in personal injury or fire.
• Never use a machine with a defective muffler.
• In very warm and dry climates, stump grinder
operation poses a risk of forest fires.
• Stop and inspect the equipment if you run over
or into anything. If necessary, make repairs
before beginning again.
• Whatever happens, you should always park the
machine on even ground, disengage the drive,
activate the parking, turn off the engine and wait
until all moving parts have stopped before
leaving the operating position behind the
machine.
8011-091
Make sure you keep your hands and feet away from moving
parts.
8011-291chg
Smoking near the machine is strictly prohibited.
WARNING!
Engine exhaust, some of its constituents and certain vehicle components contain or emit
chemicals considered to cause cancer, birth defects or other reproductive harm. The
engine emits carbon monoxide, which is a colorless, poisonous gas. Do not use the
machine in enclosed spaces.
10
SAFETY INSTRUCTIONS
Movement/Transport
• To turn and steer the machine, press down on
the handle and turn on the back wheels.
• Turn off the engine and allow it to cool at least 2
minutes before transport.
• Collapse the handle if the machine is equipped
with a collapsible handle.
• Be careful and use safe lifting and moving
techniques when loading/unloading the
machine.
• We recommend having two people to lift the
machine.
8011-278chg
• Activate the parking brake during transport.
• Fasten the machine properly in place with
approved fasteners, such as tension belts,
chains or rope. Always check that you are in
compliance with applicable traffic regulations
before transporting the machine.
Storage
• Allow the engine to cool before storing the
machine. Never store the machine near a open
flame.
• Store the machine with the fuel valve closed.
• Store the machine and fuel in such a way that
there is no risk that leaking fuel or fumes can
come in contact with flames or sparks from
electrical machines, electric engines, relays,
switches, boilers or similar.
• Store the machine in a locked space away from
children and adults untrained in use of the
machine.
We recommend having two people lift the machine.
8011-207chg
Keep children away from the machine.
Children
Serious accidents can occur if you fail to be on
guard for children in the vicinity of the machine.
Never assume that children will stay put where you
last saw them.
• Keep children away from the machine.
• Keep children away from the work area and
under close supervision by another adult.
• Keep an eye out and shut off the machine if
children enter the work area.
• Never allow children to operate the machine.
• Be particularly careful near corners, bushes,
trees or other objects that block your view .
8011-206chg
Never allow children to operate the machine.
11
SAFETY INSTRUCTIONS
Fuel system
W ARNING!
Gasoline and gasoline fumes are
poisonous and extremely flammable.
Be especially careful when handling
gasoline, as carelessness can result
in personal injury or fire.
• Only store fuel in containers approved for that
purpose.
• Never remove the fuel cap and fill the fuel tank
when the engine is running.
• Always stop the engine when refueling.
• Do not smoke when filling the gasoline tank and
do not pour gasoline in the vicinity of sparks or
open flame.
• Never fill the fuel tank indoors.
• Before starting the machine after refueling, it
should be moved at least 10 feet (3 M) from
the location where it was filled.
• Turn off the fuel supply for storage or transport.
• If leaks arise in the fuel system, the engine must
not be started until the problem has been
resolved.
8011-205chg
Never fill the fuel tank indoors.
1
8011-186
Close the fuel valve.
1. FUEL V ALVE
• Check the fuel level before each use and leave
space for the fuel to expand, because the heat
from the engine and the sun can otherwise
cause the fuel to expand and overflow .
• Avoid overfilling. If you spill gasoline on the
machine, wipe up the spill and wait until it has
evaporated before starting the engine. If you
spill gasoline on your clothing, change your
clothing.
12
8011-222chg
Fueling always poses an element of risk.
SAFETY INSTRUCTIONS
Maintenance
• Never make adjustments with the engine
running.
• Disengage the drive units, shut off the engine
and wait until all moving parts come to a
complete stop before making adjustments,
performing maintenance or cleaning the
machine.
• Disconnect the spark plug cable before
beginning repair work.
• Keep all components in serviceable condition
and make sure all nuts, bolts, etc. are tight.
Replace worn or damaged decals.
• Be careful when checking work tools. Use
gloves when performing maintenance work.
• Never allow persons not trained in the use of
the machine to perform service on it.
• Always park the machine on even ground before
performing maintenance or making
adjustments.
8011-027
Remove the spark plug cable.
W ARNING!
Wait until all moving part s are completely
still before performing maintenance on
the machine.
• Do not disassemble the engine. This can
invalidate your engine warranty. Contact your
dealer if you have any questions regarding
service or guarantee matters. Follow all
maintenance instructions.
• Do not change the setting of governors and
avoid running the engine with overly high RPM.
If you run the engine too fast, you risk damaging
the machine components.
• Do not modify safety equipment. Check
regularly to be sure it works properly. The
machine must not be run with defective or
disassembled safety equipment.
• The muffler is designed to maintain sound levels
at an approved level and keep direct exhaust
away from the user. Exhaust gases from the
engine are extremely hot and may contain
sparks that can cause fires or burn the user.
• Never use a machine with a defective muffler .
• Reduce the risk of fire by removing grass,
leaves and other debris that may have caught
in the machine.
Turn off the engine and remove the
spark plug cable.
8011-210chg
Keep the machine clean.
13
PROTECTIVE EQUIPMENT
Personal equipment
Consult your Husqvarna dealer when selecting
protective equipment. Our dealers have a broad
assortment of equipment for professionals such
as forestry workers and knowledge about
occupational environment requirements and
protective levels.
Before using the stump grinder, you may in many
cases need to cut back the object with a power
saw. Hence, it is appropriate to use personal
protective equipment that fulfils requirements for
working with both stump grinders and power
saws.
The main difference is that you should wear
protective glasses when operating the stump
grinder while the wire mesh visor gives sufficient
protection when using a power saw. Thus when
using the stump grinder, we recommend using
both a wire mesh visor to protect your face and
protective glasses. Alternatively, you can use a
Plexiglas face guard, but it scratches more easily
and is more susceptible to soiling and fogging.
You require the following personal protective
equipment:
1. Protective helmet (hard hat)
2. Ear protection
3. Face guard
4. Protective trousers
5. Protective glasses
6. Breathing protection (risk of dusty work
environment)
7. Protective gloves
8. First aid kit
9. Protective boots or steel-toed shoes
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8011-140
Equipment set-up
1. Remove crate top and sides.
SET-UP
2. Remove upper handle bar assembly and lay
aside.
3. Open bag containing loose hardware.
4. Using four (4) screws, flat washers and nuts
attach the upper handle bar assembly to lower
handle bar assembly. See Figure 1.
NOTE: Handle fit is tight. When aligning holes use
a tapered type pilot to help align holes (i.e.
punch or phillips style screw driver).
5. Attach the position adjusting rod to bracket on
the lower and upper handle bar assemblies.
See Figure 1.
6. Assemble the compression spring, two (2) flat
washers and yoke to brake rod assembly . See
Figure 2. Screw yoke onto the rod assembly
till rod is even or thru threaded portion of yoke
about 1/4” (6.35 mm).
7
FIGURE 1
1. WASHERS (2)
2. COTTER PINS (2)
3. UPPER HANDLE BAR
4. ADJUSTING ROD
4
1
2
3
4
5
6
5. COTTER PIN (1)
6. LOWER HANDLE BAR
7. HARDWARE
1
3
2
7. Attach brake rod assembly to brake handle on
the upper handle bar assembly . See Figure 3.
FIGURE 2
1. WASHERS
2. YOKE
3. SPRING
4. BRAKE ROD ASSEMBL Y
1
2
3
4
FIGURE 3
1. WASHER (1)
2. COTTER PIN (1)
3. BRAKE HANDLE
4. BRAKE ROD ASSEMBL Y
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