Briggs & Stratton BP33-W, BP43-W Operator's Manual
MODEL
BP33-W / BP43-W
BRUSH CUTTER OPERATOR’ S MANUAL
©2010.
Briggs & Stratton Power Products Group, LLC.
All Rights Reserved.
2
Trimmer / Brushcutter
Model Number
Revision
Serial Number
Date Purchased
Thank You for purchasing this quality-built Briggs & Stratton Trimmer/Brushcutter. We’re
pleased that you placed your confi dence in our brand. When operated and maintained according to the instructions in this manual, your Briggs & Stratton Trimmer/Brushcutter will provide
dependable service.
This manual contains safety information to make you aware of the hazards and risks associated
with the machine and how to avoid them. This machine is intended for trimming and brushcutting
and is not intended for any other purpose. It is important that you read and understand these
instructions thoroughly before attempting to start or operate this equipment. Save these original
instructions for future reference.
The trimmer/brushcutter requires fi nal assembly before use. Refer to the Assembly section of
this manual for instructions on fi nal assembly procedures. Follow the instructions completely.
Where to Find Us For quality support and service for your Briggs & Stratton
Trimmer/Brushcutter. Contact your local distributor. To obtain an Illustrated Parts List for your
product, please visit our website, BRIGGSandSTRATTON.com.
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TABLE OF CONTENTS
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9
11
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12
13
13
14
14
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16
16
17
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18
18
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19
20
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23
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25
26
OPERATOR SAFETY
FEA TURES AND CONTROLS
ASSEMBLY
Install Trimmer Head to the Cutting Head
Install Trimmer Head Guard
Install Trimmer Head Line
Install Brushcutter Blade to the Cutting Head
Install Handle
OPERATION
Fuel Recommendations
How to Add Fuel
Starting the Engine
Stopping the Engine
Operating Position
Using Nylon Trimmer Line
Using Brushcutter Blade
Blade Thrust
Trimming and Edging
Operating on Slopes
MAINTENANCE
Maintenance Schedule
Spark Plug Maintenance
Air Filter Maintenance
Cutting Attachment Maintenance
STORAGE
Protect Fuel System
Clean the Unit
Storage Safety
TROUBLESHOOTING
WARRANTY
SPECIFICATIONS
4
FIRE
MOVING PARTS SHOCK
SAFETY
GOGGLES,
& EAR
PROTECTION
TOXIC FUMES KICKBACK EXPLOSION
HOT SURFACE
READ MANUAL
STURDY
FOOTWEAR
CHOKE
Safety Symbols and Meanings
OPERATOR SAFETY
THROWN
OBJECTS
SAFE DISTANCE
SAFETY
GLOVES
REMOVE
SPARK PLUG
360
15 meters (50 feet)
SAFE
DISTANCE
SAVE THESE INSTRUCTIONS - This manual contains
important instructions that should be followed during the
initial set-up, the operation, and the maintenance of the
equipment.
The safety alert symbol is used to identify safety
information about hazards that can result in personal
injury. A signal word (DANGER, WARNING, or CAUTION) is used with the alert symbol to indicate the likelihood and the potential severity of injury. In addition, a
hazard symbol may be used to represent the type of
hazard.
DANGER indicates a hazard which, if not avoided,
will result in death or serious injury.
WARNING indicates a hazard which, if not avoided,
could result in death or serious injury.
CAUTION indicates a hazard which, if not avoided,
could result in minor or moderate injury.
NOTICE indicates a situation that could result in
damage to the product.
WARNING Read understand and follow all the
instructions on the trimmer and in this manual
before operating the unit. Failure to observe the
safety instructions in this manual will result in death
or serious injury.
WARNING The engine exhaust from this product contains chemicals known to the State of California to cause cancer , birth defects, or other reproductive harm.
WARNING Certain components in this product
and its related accessories contain chemicals
known to the State of California to cause cancer,
birth defects, or other reproductive harm. Wash
hands after handling.
WARNING Gasoline and its vapors are extremely
fl ammable and explosive.
Fire or explosion can cause severe burns or death.
When Adding Fuel
• Fill fuel tank outdoors or in well-ventilated area.
• Check fuel lines, tank, cap, and fittings frequently
for cracks or leaks. Replace if necessary.
When Starting Engine
• Ensure that spark plug, muffler, and air cleaner (if
equipped) are in place and secured.
• Do not crank engine with spark plug removed.
When Operating Equipment
• Never start or run the engine with the air cleaner
assembly or the air filter removed.
When Transporting Equipment
• Transport with the fuel tank empty.
When Storing Fuel or Equipment With Fuel in Tank
• Store away from furnaces, stoves, water heaters
or other appliances that have pilot lights or other
ignition sources because they can ignite fuel vapors.
WARNING This cutting machine is capable of
amputating hands and feet and throwing objects
that can cause injury and damage! Failure to comply
with the following SAFETY instructions could result
in death or serious injury to the operator or bystanders. The operator must understand these instructions. The operator must be of sound mind and body
and must not be under the infl uence of any
substance that might impair vision, dexterity or judgment.
5
360
15 meters (50 feet)
OPERATOR SAFETY
WARNING Thrown debris could cause eye
injuries. Noise levels could cause hearing
damage. Nylon trimming line and blades can
cut through clothes and skin.
• NEVER operate unit without protective guards in
place.
• DO NOT wear loose clothing, jewelry or anything
that could be caught in the starter or other rotating
parts.
• Keep hands and feet away from rotating parts.
• Wear safety goggles that meet ANSI standards
whenever you use the trimmer.
• Wear hearing protectors.
• Wear protective clothing to reduce the risk and severity
of injury. Wear trimmer harness, gloves, a longsleeved shirt, long pants, and sturdy boots with
nonslip soles.
WARNING Running engine gives off carbon
monoxide, an odorless, colorless, poison gas.
Breathing carbon monoxide can cause headache,
fatigue, dizziness, vomiting, confusion, seizures,
nausea, fainting or death.
• Operate equipment ONLY outdoors.
• Keep exhaust gas from entering a confined area
through windows, doors, ventilation intakes, or
other openings.
WARNING Exhaust heat/gases could ignite
combustibles or structures resulting in death,
serious injury or property damage. Contact with
the muffl er area could cause burns resulting in
serious injury.
• DO NOT touch hot parts.
• Allow equipment to cool before touching.
• It is a violation of California Public Resource Code,
Section 4442, to use or operate the engine on any
forest-covered, brush-covered, or grass-covered
land unless the exhaust system is equipped with a
spark arrester, as defined in Section 4442, maintained in effective working order. Other states or
jurisdictions may have similar laws. Contact the
original equipment manufacturer, retailer, or
dealer to obtain a spark arrester designed for the
exhaust system installed on the engine.
WARNING Rapid retraction of starter cord
(kickback) will pull hand and arm toward engine
faster than you can let go. Broken bones,
fractures, bruises, or sprains could result.
• When starting engine, pull the starter cord slowly
until resistance is felt and then pull rapidly to avoid
kickback.
• Blade or trimmer head must be securely attached.
WARNING Improperly maintaining the trimmer,
or failure to correct a problem before operation, can
cause a malfunction in which you can be seriously
hurt or killed. Always follow the inspection and maintenance recommendations and schedules in this
manual.
WARNING Moving parts could crush and
cut. Starter and other rotating parts could
entangle hands, hair, clothing, or accessories
resulting in serious injury.
• NEVER operate unit without protective guards in place.
• DO NOT wear loose clothing, jewelry or anything
that could be caught in the starter or other rotating
parts.
• Tie up long hair.
• Keep hands and feet away from rotating parts.
WARNING Objects thrown by the trimmer
can cause serious injury.
• Clear the area to be cut before each use. Remove
all objects such as broken glass, nails, wires, or
string, which could be thrown or become
entangled in the cutting attachment.
• Clear the area of children, bystanders, and pets.
• Keep all children, bystanders outside of a 50 ft (15 m)
radius.
• Bystanders should be encouraged to wear eye
protection.
WARNING
Unintentional sparking can resul t in fire or electric
shock.
Unintentionalstart-up can result in entanglement,
traumatic amputation, or laceration.
Fire hazard.
Before performing adjustments or repairs:
• Disconnect the spark plug wire and keep it away
from the spark plug.
• Use only correct tools.
• Replacement parts must be of the same design and
installed in the same position as the original parts.
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OPERATOR SAFETY
Trimmer Safety
• Read, understand, and follow instructions and warnings
in this manual and on the machine, engine and
attachments.
• Know the controls and the proper use of the machine
before starting.
• The equipment should only be used in good weather
conditions and with clear visibility.
• To prevent injury to others, keep people at least 50
feet (15 meters) away from the working area during
operation.
• DO NOT touch the cutting head or blade in motion.
• Keep fi rm footing and balance. Do not over-reach.
Keep cutting attachment below waist level. Keep all
parts of your body away from the rotating cutting
attachment and hot surfaces.
• NEVER use the unit without the blade guard securely
in place.
• Do not strike objects that may cause harm or damage
to the unit.
• Always wear eye protection and protective clothing.
Always wear the safety glasses provided with the
unit. Protect yourself when operating unit by wearing
safety glasses, a dust mask, long pants, ear protection, and substantial footwear.
• Clear the working area. Objects thrown by the trimmer
can cause serious injury. Before operating the
trimmer, carefully inspect the area and remove any
broken glass, pieces of wire, and other loose objects.
• The cutting attachment may be spinning during
carburetor adjustments. Wear protective equipment
and observe all safety instructions. For units
equipped with a clutch, be sure the cutting attachment stops turning when the engine idles. When the
unit is turned off, make sure the attachment has
stopped before the unit is set down.
• A coasting blade can cause injury while it continues
to spin after the engine is stopped or throttle trigger is
released. Maintain proper control until the blade has
completely stopped rotating.
Protection for Children, Bystander, and Pets
Tragic accidents can occur if the operator is not alert to
the presence of children, bystanders, and pets. Children
are often attracted to the machine and the trimming
activity. Never assume that children will remain where
you last saw them.
• Keep children out of the trimming area and under the
watchful care of a responsible adult.
• Clear the area to be cut before each use. Remove all
objects such as broken glass, nails, wires, or string,
which could be thrown or become entangled in the
cutting attachment.
• Clear the area of children, bystanders, and pets.
• Keep all children, bystanders outside of a 50 ft (15 m)
radius.
• Bystanders should be encouraged to wear eye protection.
• Do not allow children or others to use the equipment
or attachments. They can be seriously injured.
• Allow only responsible persons who understand these
instructions to operate this equipment.
• Use extra care when approaching blind corners, shrubs,
trees, or other objects that may obscure vision.
Safe Handling of Gasoline
To avoid personal injury or property damage, use
extreme care in handling gasoline. Gasoline is extremely
flammable and the vapors are explosive.
• Extinguish all cigarettes, cigars, pipes and other sources
of ignition.
• Use only an approved fuel container.
• DO NOT fi ll fuel containers inside a vehicle or on a truck
or trailer with a plastic liner. Always place the containers on the ground away from the vehicle before fi lling.
• Keep the nozzle in contact with the rim of the fuel tank
or container opening at all times until fueling is complete. DO NOT use a nozzle lock-open device.
• DO NOT refuel the machine indoors.
• DO NOT remove fuel cap or add fuel with the engine
running. Allow the engine to cool before refueling.
• Remove gas-powered equipment from the vehicle or
trailer and refuel it on the ground. If this is not
possible, then refuel equipment using a portable
container, rather than a gasoline dispenser nozzle.
• Never overfi ll a fuel tank. Replace fuel cap and tighten
securely.
• DO NOT store the machine or fuel container inside
where there is an open fl ame, spark or pilot light such
as on a water heater or other appliance.
• If fuel is spilled on clothing, change clothing immediately.
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OPERATOR SAFETY
Maintenance Safety
• Keep engine free of grass, leaves or excess grease
to reduce fi re hazard and engine overheating.
• When draining fuel tank, drain fuel into an approved
container outdoors and away from open fl ame.
• Always provide adequate ventilation when running
engine. Exhaust gases contain carbon monoxide, an
odorless and deadly poison.
• Service engine and make adjustments only when engine
is stopped. Remove spark plug wire from spark plug
and secure wire away from spark plug.
• DO NOT change engine governor speed settings or
overspeed engine.
• DO NOT test for spark with spark plug removed.
Transporting and Storage Safety
• DO NOT store equipment or fuel container inside where
fumes may reach an open fl ame, spark or pilot light
such as in a water heater, furnace, clothes dr yer or
other gas appliance. Allow engine to cool before
storing equipment in an enclosure. Store fuel
container out of the reach of children in a well ventilated, unoccupied building.
• Do not stand the unit unsecured or unattended in the
vertical position. Do not store in the vertical position.
• Hand carry the unit in the horizontal position with the
engine stopped and the muffl er away from your body.
Ensure the blade is well clear of people and property.
• Allow the engine to cool before transporting or storing
the unit.
• Empty the fuel tank after each use and before storing
the unit.
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SAFETY LABEL LOCATIONS
The labels shown here contain important safety information. Please read them carefully. These labels are considered
permanent parts of your trimmer/brush cutter. If a label comes off or becomes hard to read, contact your authorized
dealer for a replacement.
9
NOTICE: The figures and illustrations in this manual are provided for reference only and may differ from your specific
model.
A. Engine
B. Fuel Cap
C. Air Filter
D. Clutch
E. Blade Guard
F. Line Limiter
G. Spool Head
H. Straight Shaft
I. Throttle Control Switch
J. Ignition Switch
K. Brushcutter Blade
L. Half throttle control switch
A
B
D
F
E
H
I
K
J
FEA TURES AND CONTROLS
C
G
L
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