Model No. 53020 — 8900001 & Up
Model No. 53021 — 8900001 & Up
16” & 18” Gas
Modèle No. 51903 — 790000001 et suivants
Modèle No. 51904 — 790000001 et suivants
Modèle No. 51906 — 790000001 et suivants
Modèle No. 51907 — 790000001 et suivants
FORM NO. 3321–134
16” & 18” Gas
Modelos N. 51903 — 790000001 y siguientes
Modelos N. 51904 — 790000001 y siguientes
Modelos N. 51906 — 790000001 y siguientes
Modelos N. 51907 — 790000001 y siguientes
Operator’s Manual
Manuel de l’Utilisateur
Manual del Usuario
Page 2
WARNING:
The engine exhaust from this product
contains chemicals known to the State of
California to cause cancer, birth defects,
or other reproductive harm.
Page 3
Figures
1
3
1. Gearcase
2. Shaft Assembly
3. Throttle Trigger and Stop
Switch
4. Bullhorn Handle
5. Shoulder Harness
Attachment
6. Shaft Grip
7. Clutch Drum Housing
8. Engine
2
9. Model and Serial Number
Decal (on rear of engine
stand)
All of us at Toro want you to be completely satisfied
with your new product, so feel free to contact your
local Authorized Service Dealer for help with service,
genuine Toro parts, or other information you may
require.
Whenever you contact your Authorized Service
Dealer or the factory, always know the model and
serial numbers of your product. These numbers will
help the Service Dealer or Service Representative
provide exact information about your specific
product. You will find the model and serial number
decal located in a unique place on the product
(Fig. 1).
For your convenience, write the product model and
serial numbers in the space below.
Model No.
Serial No.
Read this manual carefully to learn how to operate
and maintain your product correctly. Reading this
manual will help you and others avoid personal injury
and damage to the product.
1
Page 11
Although Toro designs, produces and markets safe,
state-of-the-art products, you are responsible for
using the product properly and safely. You are also
responsible for training persons who you allow to use
the product about safe operation.
The Toro warning system in this manual identifies
potential hazards and has special safety messages that
help you and others avoid personal injury, even death.
DANGER, WARNING and CAUTION are signal
words used to identify the level of hazard. However,
regardless of the hazard, be extremely careful.
DANGER signals an extreme hazard that will cause
serious injury or death if the recommended
precautions are not followed.
WARNING signals a hazard that may cause serious
injury or death if the recommended precautions are
not followed.
CAUTION signals a hazard that may cause minor or
moderate injury if the recommended precautions are
not followed. Two other words are also used to
highlight information. “Important” calls attention to
special mechanical information and “Note”
emphasizes general information worthy of special
attention.
3.Always wear eye protection that complies with
ANSI (American National Standards Institute)
Z87–1.
4.Always wear hearing protection.
5.Always wear heavy, long pants, a long sleeved
shirt, boots and gloves. Do not wear loose
clothing, jewelry, short pants, sandals, or go
barefoot. Secure hair so it is above shoulder
length.
6.Never operate this Brushcutter when you are
tired, ill, or under the influence of alcohol, drugs
or medication.
7.Never start or run the engine inside a closed
room or building. Breathing exhaust fumes can
cause death.
Safety
Operator Safety
1.Read and understand this Operator’s Manual
before using this product. Be thoroughly familiar
with the proper use of this product.
2.Never allow children to operate the Brushcutter.
It is not a toy. Never allow adults to operate the
unit without first reading the Operator’s Manual.
8.Keep handles clean of oil, fuel and dirt.
Brushcutter Safety
1.Make sure the Brushcutter is assembled correctly
and that the Brushcutter blade is correctly
installed and securely fastened as instructed in
the Assembly section.
2
Page 12
2.Inspect the Brushcutter before each use. Replace
damaged parts. Check for fuel leaks. Make sure
all fasteners are in place and tightened securely.
Follow the maintenance instructions beginning
on page 12.
4.Do not overfill the fuel tank. Stop filling 1/4–1/2
inch (6mm–13mm) from the top of the tank.
5.Wipe up any spilled fuel before starting the
engine.
3.Make sure the Brushcutter blade does not rotate
at engine idle speed. Refer to Idle Speed
Adjustment, page 10.
4.Inspect the Brushcutter cutting blade and replace
any parts that are cracked, chipped or damaged
before using the Brushcutter.
5.Make sure the blade shield is installed and
positioned correctly before using the
Brushcutter.
6.Never use a cutting blade or replacement parts
that are not approved by Toro.
7.Maintain the Brushcutter according to the
recommended maintenance intervals and
procedures in the Maintenance section on
page 12.
8.Shut off the engine and be certain the cutting
blade has completely stopped rotating before
inverting the Brushcutter, performing
maintenance on or working on the machine.
9.If running problems or excessive vibration occur,
stop immediately and inspect the unit for the
cause. If the cause cannot be determined or is
beyond your ability to correct, return the
Brushcutter to your servicing dealer for repair.
6.Move the Brushcutter at least 10 feet (3 m) away
from the fueling location before starting the
engine (Fig. 2).
7.Do not remove the Brushcutter fuel tank cap
while the engine is running, or right after
stopping the engine.
8.Allow the engine to cool before refueling.
9.Drain the tank and run the engine dry before
storing the unit.
10. Store fuel and Brushcutter away from open
flame, sparks and excessive heat. Make sure fuel
vapors cannot reach sparks or open flames from
water heaters, furnaces, electric motors, etc.
Power Brushcutter Operating
Safety
1.THIS BRUSHCUTTER CAN CAUSE
SERIOUS INJURIES. Read the instructions
carefully. Be familiar with all controls and the
proper use of the Brushcutter.
2.Make sure the 3mm hex wrench has been
removed from the gearcase and boss adapter
before you start the engine (Fig 10).
Fuel Safety
1.Gasoline is highly flammable and must be
handled and stored carefully. Use a container
approved for fuel for storing gasoline and/or
fuel/oil mixture.
2.Mix and pour fuel outdoors and where there are
no sparks or flames.
3.Do not smoke near fuel or Brushcutter, or while
using the Brushcutter.
3
3.Avoid using the Brushcutter near rocks, gravel,
stones and similar material that would cause
harmful missiles.
4.Keep children, bystanders and animals outside a
50 ft. (15 m) radius from the operator and
Brushcutter (Fig. 3).
5.If you are approached while operating the
Brushcutter, stop the engine and Brushcutter
blade rotation.
6.Use the Brushcutter only in daylight or good
artificial light.
Page 13
7.Never operate the Brushcutter without proper
guards or other protective safety devices in
place.
9.When cutting heavy brush or small trees, always
swing the Brushcutter from right to left to
prevent kick-back (Figs 17 and 18).
8.Do not put hands or feet near or under any
rotating parts. Keep clear at all times. Keep all
parts of your body away from the rotating
Brushcutter blade and hot surfaces such as the
muffler.
Safety and Instruction Decals
Safety decals and instructions are easily visible to the operator and are located near
any area of potential danger. Replace any decal that is damaged or lost.
(Part No. M221501)
10. Keep firm footing and balance. Do not
overreach.
11. Use the right tool for the job. Do not use the
Brushcutter for any job that is not recommended
by Toro.
ON SHAFT
ON SHAFT
(Part No. M221502)
ON ENGINE
(Part No. M266291)
4
Page 14
Assembly
Assembling Engine and Drive
2.Position the slotted fitting on the carburetor so
the recessed hole for the cable lug is away from
the cable adjuster sleeve (Fig. 7).
Shaft Assembly
The drive shaft, clutch drum housing and gearcase are
assembled. Attach the clutch drum housing to the
engine using the four M6 x 20 screws supplied with
the unit (Fig. 4).
Bullhorn Handle Installation
IMPORTANT: Be careful not to damage the
throttle cable and stop switch wires when you
remove the bullhorn handles from the
shipping carton.
1.Loosen the four Phillips hex head screws on the
top of the clamp bracket (Fig. 5).
2.Insert the left and right bullhorn handles into the
clamp bracket. Note that the bullhorn handle
with the throttle trigger and stop switch goes on
the right-hand side of the Brushcutter (Fig. 5).
3.Rotate the carburetor throttle cam clockwise and
slip the throttle cable through the slot in the
slotted fitting, making sure the cable lug drops
into the recessed hole (Figs. 7 and 8).
4.Operate the throttle trigger a few times to make
sure that it works correctly (Fig. 15).
5.Adjust the cable adjuster sleeve so the stop on
the carburetor throttle cam just contacts the
throttle stop when the throttle trigger is fully
depressed (Figs. 7 and 8).
6.When the throttle cable is adjusted correctly,
tighten the locknut (Fig. 7).
Installing Shield
3.Adjust the bullhorn handles to the desired
position, then tighten the four Phillips hex head
screws (Fig. 5).
Connecting Stop Switch Wires
1.Loosen the knob and remove the air cleaner
cover to access the stop switch wires (Fig. 6).
2.Plug the stop switch wires into the matching
connectors from the engine. Note that wire
polarity is not important.
Connecting Throttle Cable
1.With the air cleaner cover off, insert the throttle
cable through the cable adjuster sleeve on the
carburetor bracket. Make sure the end of the
cable housing is seated positively in the sleeve
(Figs. 7 and 8).
POTENTIAL HAZARD
• Foreign objects can be thrown by
Brushcutter.
WHAT CAN HAPPEN
• Contact with thrown objects can cause
personal injury.
HOW TO AVOID THE HAZARD
• Never operate the Brushcutter without the
blade shield in place.
1.Install the blade shield onto the gearcase
(Fig. 9).
2.Install and tighten the four M5 x 12 screws
(Fig. 9).
5
Page 15
Installing Brushcutter Blade
POTENTIAL HAZARD
• If the Brushcutter blade is not adequately
tightened, it can come loose from the
Brushcutter during use.
WHAT CAN HAPPEN
• This may cause damage to property or
personal injury.
HOW TO AVOID THE HAZARD
• Make sure the Brushcutter blade is securely
fastened to the splined shaft in the gearcase.
6.Remove the 3mm hex wrench from the boss
adapter and gearcase (Fig. 10).
Attaching Strap
POTENTIAL HAZARD
• Without the strap installed on the
Brushcutter, the blade can produce side
thrust which can expose the operator and
bystanders to blade contact.
WHAT CAN HAPPEN
• Contact with the Brushcutter blade can
cause severe personal injury.
1.Remove the blade bolt, stabilizer and clamping
washer from the splined shaft out of the gearcase
(Fig. 10).
Note:The blade bolt has left-hand threads.
POTENTIAL HAZARD
• Brushcutter blade is sharp.
WHAT CAN HAPPEN
• Contact with sharp blade can cause serious
personal injury.
HOW TO AVOID THE HAZARD
• Wear gloves when you handle the blade.
2.Install the brushcutter blade onto the boss
adapter, then reinstall the clamping washer,
stabilizer and blade bolt (Fig. 10).
3.Align the hole in the boss adapter with the hole
in the gearcase (Fig. 10).
4.Insert a 3mm hex wrench or other suitable tool
into the holes in the boss adapter and gearcase to
lock the splined shaft (Fig. 10).
HOW TO AVOID THE HAZARD
• Never operate the Brushcutter without
installing and using the strap.
Snap the strap hook into the ring on the drive shaft.
To detach the strap quickly from the Brushcutter, pull
upward on the red band (Fig. 11).
Installing Brushcutter Blade
Cover
POTENTIAL HAZARD
• Brushcutter blade is sharp.
WHAT CAN HAPPEN
• Contact with sharp blade can cause serious
personal injury.
• An unprotected blade is subject to damage.
HOW TO AVOID THE HAZARD
• Keep the blade cover on the blade when the
Brushcutter is not in use. This will protect
persons from injury from blade contact,
and will protect the blade from damage.
5.Tighten the blade bolt to 100 in.-lbs. (11.3 NSM)
(Fig. 10).
1.Insert the tips of the blade into the grooves in the
blade cover (Fig. 12).
6
Page 16
2.Wind the cover around the blade, then snap the
hook to secure the blade cover (Fig. 12).
Before Operation
Oil and Fuel
POTENTIAL HAZARD
• Gasoline contains gasses that can build up
pressure inside a gas tank.
WHAT CAN HAPPEN
• Fuel can be sprayed on you when removing
gas cap.
HOW TO AVOID THE HAZARD
• Remove fuel cap slowly to avoid injury
from fuel spray.
POTENTIAL HAZARD
• In certain conditions gasoline is extremely
flammable and highly explosive.
WHAT CAN HAPPEN
• A fire or explosion from gasoline can burn
you, others, and cause property damage.
HOW TO AVOID THE HAZARD
• Use a funnel and fill the fuel tank outdoors,
in an open area, when the engine is cold.
Wipe up any gasoline that spills.
• Do not fill the fuel tank completely full.
Add gasoline to the fuel tank until the level
is 1/4” to 1/2” (6 mm to 13 mm) below the
bottom of the filler neck. This empty space
in the tank allows gasoline to expand.
• Never smoke when handling gasoline, and
stay away from an open flame or where
gasoline fumes may be ignited by a spark.
• Store gasoline in an approved container
and keep it out of the reach of children.
• Never buy more than a 30-day supply of
gasoline.
4.Always open the fuel tank cap slowly to release
any possible overpressure inside the tank.
5.Do not overfill the fuel tank. Stop filling 1/4–1/2
inch (6mm–13mm) from the top of the tank.
6.Tighten the tank fuel cap carefully but firmly
after refilling.
7.Wipe up any spilled fuel before starting the
engine.
8.Move the Brushcutter at least 10 feet (3 m) away
from the fueling location and fuel storage
container before starting the engine (Fig. 2).
Recommended Oil Type
Only use a two-cycle engine oil formulated for use in
high-performance, air-cooled two-cycle engines. Toro
brand 2-cycle oil is formulated for use in
high-performance, air-cooled two-cycle engines.
1.Do not smoke near fuel.
2.Mix and pour fuel outdoors and where there are
no sparks or flames.
3.Always shut off the engine before refueling.
Never remove the Brushcutter fuel tank cap
while the engine is running or right after just
stopping the engine.
7
IMPORTANT: Do not use National Marine
Manufacturer’s Association (NMMA) or BIA
certified oils. This type of 2–cycle engine oil
does not have the proper additives for
air-cooled, 2–cycle engines and can cause
engine damage.
Do not use automotive motor oil. This type of
oil does not have the proper additives for
air-cooled, 2–cycle engines and can cause
engine damage.
Page 17
Recommended Fuel Type
Use clean, fresh lead-free gasoline, including
oxygenated or reformulated gasoline, with an octane
rating of 85 or higher. To ensure freshness, purchase
only the quantity of gasoline that can be used in 30
days. Use of lead-free gasoline results in fewer
combustion chamber deposits and longer spark plug
life. Use of premium grade fuel is not necessary or
recommended.
Use Of Fuel Additives
IMPORTANT: NEVER USE METHANOL,
GASOLINE CONTAINING METHANOL,
GASOHOL CONTAINING MORE THAN
10% ETHANOL, PREMIUM GASOLINE,
OR WHITE GAS BECAUSE ENGINE
FUEL SYSTEM DAMAGE COULD
RESULT.
Mixing Gasoline And Oil
IMPORTANT: The engine used on this
Brushcutter is of a 2–cycle design. The
internal moving parts of the engine, i.e.,
crankshaft bearings, piston pin bearings and
piston to cylinder wall contact surfaces,
require oil mixed with the gasoline for
lubrication.
Failure to add oil to the gasoline or failure to
mix oil with the gasoline at the appropriate
ratio will cause major engine damage which
will void your warranty.
For your fuel premix, only use a quality oil
designed for 2–cycle air cooled engines. Toro
50:1 2–Cycle Oil is formulated to meet the
requirements of high-performance, air-cooled
two-cycle engines.
Fuel Mixture
The fuel:oil ratio is 50 parts gasoline to 1 part oil or
50:1.
DO NOT USE FUEL ADDITIVES OTHER
THAN THOSE MANUFACTURED FOR
FUEL STABILIZATION DURING
STORAGE SUCH AS TORO’S
STABILIZER/CONDITIONER OR A
SIMILAR PRODUCT. TORO’S
STABILIZER/CONDITIONER IS A
PETROLEUM DISTILLA TE BASED
CONDITIONER/STABILIZER.
TORO DOES NOT RECOMMEND
STABILIZERS WITH AN ALCOHOL BASE
SUCH AS ETHANOL, METHANOL OR
ISOPROPYL. ADDITIVES SHOULD NOT
BE USED TO TRY TO ENHANCE THE
POWER OR PERFORMANCE OF
MACHINE.
Note:Never use a mixing ratio less than
50:1 regardless of the oil package
mixing instructions. Ratios less the
50:1, (for example, 60:1, 80:1,
100:1), reduce the amount of
lubrication to the internal moving
parts of the engine and can cause
damage.
Fuel Mixture Chart
Gasoline50:1 2-cycle oil
1 gallon2.6 oz.
2 gallons5.2 oz.
5 gallons12.8 oz.
8
Page 18
Mixing Instructions
Starting And Stopping
IMPORTANT: Never mix gasoline and oil
directly in the Brushcutter fuel tank.
1.Always mix fuel and oil in a clean container
approved for gasoline.
2.Mark the container to identify it as fuel mix for
the Brushcutter.
3.Use regular unleaded gasoline and fill the
container with half the required amount of
gasoline.
4.Pour the correct amount of oil into the container
then add the remaining amount of gasoline.
5.Close the container tightly and shake it
momentarily to evenly mix the oil and the
gasoline before filling the fuel tank on the
Brushcutter.
Before Starting The Engine
1.Fill the fuel tank as instructed in the Before
Operation section of this manual.
2.Rest the Brushcutter on the ground.
3.Make sure the Brushcutter blade is clear of any
broken glass, nails, wire, rocks or other debris.
4.Keep all bystanders, children and animals away
from the working area.
Cold Starting Procedure
The carburetors on Toro engines contain a choke
system. To start a “cold” engine properly, perform the
following procedure:
1.Pump the primer bulb at the bottom of the
carburetor until fuel can be seen flowing through
the fuel return line to the fuel tank (Fig. 13).
(Flowing fuel should be almost clear, not foamy
or full of bubbles.)
2.Move the choke lever to the closed (
and move the stop switch to the “ON” position
(Figs. 14 and 15).
) position
6.When refilling the Brushcutter fuel tank, clean
around the fuel tank cap to prevent dirt and
debris from entering the tank during cap
removal.
7.Always shake the premix fuel container
momentarily before filling the fuel tank
8.Always use a spout or funnel when fueling to
reduce fuel spillage.
9.Fill the tank only to within 1/4–1/2 inch
(6mm–13mm) from the top of the tank. Avoid
filling to the top of the tank filler neck.
3.Lock the throttle trigger in the fast-idle start
position, then pull the starter handle (Figs. 14
and 15).
4.After the engine starts, move the choke lever to
the open (
the throttle trigger to allow it to return to the idle
position (Figs. 14 and 15).
If the engine stops running before you move the
choke lever to the open (
A.Go ahead and open the choke (Fig. 14).
B.Make sure the throttle trigger is set to the
fast-idle start position (Fig. 15).
C.Pull the starter handle until the engine starts
(Fig. 14).
) position, then squeeze and release
) position:
9
Page 19
Hot Restart
To start an engine that is already warmed up (hot
restart), or if the ambient temperature exceeds 68_F
(20_C):
1.Pump the primer bulb at the bottom of the
carburetor until fuel can be seen flowing through
the fuel return line to the fuel tank (Fig. 13).
2.Move the choke lever to the open (
and move the stop switch to the “ON” position
(Figs. 14 and 15).
3.Leave the throttle trigger in the idle position and
pull the starter handle (Figs. 14 and 15).
4.If the engine fails to start after three to four
pulls, follow the instructions in the Cold Starting
Procedure section above.
If the engine fails to start after you follow the
above procedures, contact an authorized Toro
dealer.
) position
To Stop The Engine:
1.Release the throttle trigger (Fig. 15).
POTENTIAL HAZARD
• Engine must be running to make some
carburetor adjustments.
• When engine is running, Brushcutter blade
is rotating and other parts are moving.
WHAT CAN HAPPEN
• Contact with rotating Brushcutter blade or
other moving parts could cause serious
personal injury or death.
HOW TO AVOID THE HAZARD
• Keep hands, feet and clothing away from
Brushcutter blade and other moving parts.
• Keep all bystanders and pets away from
unit while making carburetor adjustments.
The Brushcutter blade may be rotating during idle
speed adjustment. Wear the recommended personal
protective equipment and observe all safety
instructions. Keep hands and body away from the
Brushcutter blade.
When the throttle trigger is released, the engine
should return to an idle speed between 2400 and 2800
RPM, or just below the clutch engagement speed.
The Brushcutter blade must not rotate and the engine
should not stall (stop running) at engine idle speed.
To adjust the engine idle speed, rotate the idle speed
adjustment screw on the carburetor (Fig. 16).
2.Slide the stop switch to the “STOP”
(Fig. 15).
position
Idle Speed Adjustment
This Brushcutter is equipped with non-adjustable fuel
mixture carburetor. The engine idle speed is the only
adjustment for the operator.
•Turn the idle speed screw in (clockwise) to
increase the engine idle speed.
•Turn the screw out (counterclockwise) to
decrease the engine idle speed.
If idle speed adjustment is necessary, and after
adjustment the Brushcutter blade rotates or the
engine stalls, stop using the Brushcutter
immediately!
Contact your local authorized Toro Dealer for
assistance and servicing.
10
Page 20
Operation
POTENTIAL HAZARD
• Foreign objects can be thrown by
Brushcutter.
WHAT CAN HAPPEN
• Contact with thrown objects can cause
personal injury.
HOW TO AVOID THE HAZARD
• Never operate the Brushcutter without the
blade shield in place.
• Read the Safety instructions on page 2
concerning proper use of the Brushcutter.
POTENTIAL HAZARD
• Without the strap installed, the Brushcutter
blade can produce side thrust which can
expose the operator and bystanders to
blade contact.
• If the Brushcutter is not correctly
positioned on the operator’s right side, the
blade can produce side thrust which can
expose the operator and bystanders to
blade contact.
WHAT CAN HAPPEN
• Contact with the Brushcutter blade can
cause severe personal injury.
HOW TO AVOID THE HAZARD
• Never operate the Brushcutter without
installing and using the strap.
• Always operate the Brushcutter with the
unit on your right side.
Operating Position
Before using the Brushcutter, check the following:
1.Make sure the 3mm hex wrench has been
removed from the gearcase and boss adapter
before you start the engine (Fig 10).
2.The operator must be wearing the strap attached
to the Brushcutter, and the Brushcutter must be
on the operator’s right side.
3.The operator’s right hand should be holding the
right-hand bullhorn grip, with his or her fingers
on the throttle trigger.
4.The left hand should be holding the left-hand
bullhorn grip with the fingers and thumb fully
enclosed around the grip.
5.Always release the throttle trigger and allow the
engine to return to idle speed when not cutting.
6.Stop the Brushcutter engine when moving
between work sites.
• Always wear gloves and protective clothing
when operating the Brushcutter.
11
Page 21
•If the Brushcutter blade becomes jammed, stop
the engine immediately.
•Make certain all moving parts have stopped and
disconnect the spark plug before inspecting the
equipment for damage.
•Never use a Brushcutter that has chipped,
cracked or broken blade or blade shield.
IMPORTANT: To detach the strap quickly
from the Brushcutter, pull upward on the red
band (Fig. 11).
Cutting Direction
4.If a blade produces eccentric rotation or
vibration, replace the blade and the boss adapter
with genuine Toro parts (Fig. 10).
Maintenance
NOTICE:Maintenance, replacement or repair
of the emission control devices and
systems may be performed by any
nonroad engine repair establishment
or individual. However, to obtain no
charge repairs under the terms and
provisions of the Toro warranty
statement, any service or emission
control part repair or replacement
must be performed by an
Authorized Toro Service Dealer.
POTENTIAL HAZARD
• Cutting heavy brush or small trees from the
wrong direction can cause the Brushcutter
blade to kick back.
WHAT CAN HAPPEN
• Contact with the Brushcutter blade can
cause severe personal injury.
HOW TO AVOID THE HAZARD
• Always swing the Brushcutter from right to
left when cutting heavy brush or small trees
as shown in Fig. 17.
When cutting heavy brush or small trees, always
swing the Brushcutter from right to left (Fig. 17).
Swinging the Brushcutter from left to right can cause
the blade to kick back (Fig. 18).
Cutting Blades
1.Use only the correct blade (Toro genuine part)
approved for the application and model
Brushcutter.
2.Carefully check the condition of the blades
before and after operation.
3.Sharpen dull blades. Replace any blade that is
worn, cracked or damaged.
Air Filter
Maintenance Interval
•The air filter should be cleaned daily, or more
often when working in extremely dusty
conditions.
•Replace after every 100 hours of operation.
Air Filter Cleaning
1.Loosen the knob and remove the air filter cover
(Fig. 19).
2.Remove the foam ring and filter screen from the
air filter cover (Fig. 19).
3.Clean the foam ring and filter screen with warm,
soapy water. Let the screen and ring dry
completely.
4.Apply a light coat of SAE 30 motor oil to the
foam ring and squeeze out all excess oil.
5.Reassemble the filter screen and foam ring to the
air filter cover (Fig. 19).
IMPORTANT: The air filter screen is
designed to fit into the air filter cover ONE
WAY ONLY. Make sure the cutouts in the
12
Page 22
screen fit onto the matching plastic posts in
the air filter cover. The fit should be snug
(Fig. 20).
Spark Plug
Maintenance Interval
6.Reinstall the air filter cover and tighten the knob
(Fig. 19).
Fuel Filter
Maintenance Interval
The fuel filter should be replaced after every 100
hours of operation.
Fuel Filter Replacement
The fuel filter is attached to the end of the fuel
pick-up hose inside the fuel tank (Fig. 21).
•The spark plug should be removed from the
engine and checked after each 25 hours of
operation.
•Replace the spark plug after every 100 hours of
operation.
Spark Plug Maintenance
1.With the engine at ambient (room) temperature,
loosen the knob and remove the air cleaner cover
(Fig. 6).
2.Loosen the knob and lift off the cylinder cover
(Fig. 6).
3.Twist the high tension lead boot on the spark
plug back and forth a couple of times to loosen
the boot, then pull the boot off of the spark plug.
4.Remove the spark plug.
To replace the fuel filter:
1.Make sure the fuel tank is empty.
2.Remove the fuel cap.
3.Using a wire hook, gently pull the fuel filter out
through the fuel filler opening (Fig. 21).
4.Grasp the fuel hose next to the fuel filter fitting
and remove the filter, but do not release the hose.
5.While still holding on to the fuel hose, attach the
new fuel filter.
6.Drop the new fuel filter back into the fuel tank.
7.Make sure that the fuel filter is not stuck in a
corner of the tank, and that the fuel hose is not
doubled over (kinked) before refueling.
5.Clean the electrodes with a stiff brush (Fig. 22).
6.Adjust the electrode air gap to .024–.028 in.
(0.6–0.7mm) (Fig. 22).
7.Replace the spark plug if it is oil-fouled,
damaged, or if the electrodes are worn down.
8.Do not overtighten the spark plug when
installing. The tightening torque is 95–148 in.
lbs. (10.7–16.6 NSm).
9.Reinstall the cylinder and air cleaner covers
(Fig. 6).
Cylinder Cooling Fins
Maintenance Interval
The cylinder cooling fins should be cleaned after
every 25 hours of operation, or once a week,
whichever comes first.
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Air must flow freely around and through the cylinder
cooling fins to prevent engine overheating. Leaves,
grass, dirt and debris buildup on the fins will increase
the operating temperature of the engine, which can
reduce engine performance and shorten engine life.
Cooling Fin Cleaning
1.With the engine at ambient (room) temperature,
loosen the knob and remove the air cleaner cover
(Fig. 6).
2.Loosen the knob and lift off the cylinder cover
(Fig. 6).
Spark Arrester Maintenance
1.With the engine at ambient (room) temperature,
loosen the knob and remove the air cleaner cover
(Fig. 6).
2.Loosen the knob and lift off the cylinder cover
(Fig. 6).
3.Remove the two socket head screws holding the
spark arrester assembly to the muffler (Fig. 23).
4.Remove and clean the tail, gasket and spark
arrester with a safety solvent and a stiff brush. If
any part cannot be thoroughly cleaned, it must
be replaced.
3.Clean all dirt and debris from the cooling fins
and from around the cylinder base.
4.Reinstall the cylinder and air cleaner covers
(Fig. 6).
Spark Arrester
POTENTIAL HAZARD
• Muffler surface becomes hot when
Brushcutter is in operation and remains
hot for some time after the engine is shut
off.
WHAT CAN HAPPEN
• Contact with hot muffler surfaces could
cause a burn.
HOW TO AVOID THE HAZARD
• Make sure the muffler is cool before
inspecting and cleaning the spark arrester.
Maintenance Interval
•The spark arrester should be inspected and
cleaned after every 25 hours of use.
5.Reinstall the spark arrester, gasket and tail onto
the muffler, then reinstall and tighten the two
socket head screws (Fig. 23).
6.Reinstall the cylinder and air cleaner covers
(Fig. 6).
Exhaust Muffler
Maintenance Interval
The muffler should be inspected and cleaned after
each 100 hours of use.
Muffler Maintenance
1.With the engine at ambient (room) temperature,
loosen the knob and remove the air cleaner cover
(Fig. 6).
2.Loosen the knob and lift off the cylinder cover
(Fig. 6).
3.Remove the two socket head screws holding the
spark arrester assembly to the muffler and
remove the tail, gasket and spark arrester
(Fig. 23).
4.Remove the three socket head screws holding the
muffler cover to the muffler body and remove
the muffler cover (Fig. 23).
•Replace the screen if it cannot be thoroughly
cleaned, or if it is damaged.
5.Clean the muffler body and cover with a safety
solvent and a stiff brush (Fig. 23).
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Page 24
IMPORTANT: Be careful not to allow any
dirt or debris to fall into the exhaust ports, as
this can cause engine damage.
6.To reassemble the muffler cover to the muffler:
A.Apply liquid gasket (p/n M261910) to the
muffler cover sealing surfaces, then reinstall
the cover onto the muffler body (Fig. 23).
B.Apply removable Loctite to the three socket
head muffler cover screws, then reinstall
and tighten the three screws (Fig. 23).
7.Reinstall the spark arrester, gasket and tail onto
the muffler, then reinstall and tighten the two
socket head screws (Fig. 23).
8.Reinstall the cylinder and air cleaner covers
(Fig. 6).
The Toro Brushcutter will provide maximum
performance for many, many hours if it is maintained
properly. Good maintenance includes regular
checking of all fasteners for correct tightness, and
cleaning the entire machine.
Blade Sharpening
IMPORTANT: Replace any blade that is
worn, cracked or damaged.
IMPORTANT: Sharpen every tooth evenly so
the blade rotates smoothly. If you sharpen a
blade with a grinder, do not overheat the
blade, and do not quench a hot blade in water
to cool it.
Four-tooth Blade
Sharpen with a single-cut flat file (Fig. 24).
Gearcase Maintenance
The gearcase is a sealed unit which has been greased
at the factory. No gearcase maintenance or lubrication
is required or recommended.
General Cleaning and
Tightening
POTENTIAL HAZARD
• When engine is running, cutting blade is
rotating and other parts are moving.
WHAT CAN HAPPEN
• Contact with rotating cutting blade or
other moving parts could cause serious
personal injury or death.
HOW TO AVOID THE HAZARD
• Always turn off your Brushcutter before
you clean or perform any maintenance on
it.
Eight-tooth Blade
Sharpen with a single-cut flat file and a round file
(Fig. 25).
80-tooth Blade
Sharpen with a single-cut flat file and a round file
(Fig. 26).
Storage
For long-term storage of the Brushcutter (Fig. 27):
1.Empty the fuel tank into a suitable fuel storage
container.
2.Pump the primer bulb on the carburetor until all
fuel is discharged through the clear fuel return
hose.
3.Run the engine to remove any fuel that may
remain in the carburetor.
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Page 25
4.Perform all regular maintenance procedures and
any needed repairs.
5.Remove the spark plug and squirt a very small
amount of oil into the cylinder.
POTENTIAL HAZARD
• Oil may squirt out of the spark plug
opening when you pull the starter handle.
WHAT CAN HAPPEN
• Oil can cause eye injuries.
HOW TO AVOID THE HAZARD
• Protect your eyes and keep your face away
from the spark plug opening.
2.String Trimmer Conversion Kit, Model No.
53051—allows you to convert the Brushcutter to
a String Trimmer.
POTENTIAL HAZARD
• If the Brushcutter blade is not adequately
tightened, it can come loose from the
Brushcutter during use.
WHAT CAN HAPPEN
• This may cause damage to property or
personal injury.
HOW TO AVOID THE HAZARD
• Make sure the Brushcutter blade is securely
fastened to the splined shaft in the gearcase.
6.Pull the starter handle once.
7.Slowly pull the starter handle to bring the piston
to the top of the cylinder (TDC).
8.Reinstall the spark plug.
9.Store the Brushcutter in a dry place away from
excessive heat, sparks or open flame.
Accessories
The following accessories may be purchased at your
local authorized TORO Service Dealer.
1.Deluxe Strap Harness, Model No.
46–2961—safety release straps made out of
durable nylon webbing (Fig. 11).
3.10” Brushcutter Blades—four-tooth,
eight-tooth and 80-tooth blades are available for
various cutting conditions (Fig. 28).
•Four-tooth blade—exclusively for grass
cutting, especially softer grass such as
meadow grass.
•Eight-tooth blade—for grass and lawns.
•80-tooth blade—for bush cutting, bamboo
grass, and hard and thick grass.
IMPORTANT: Use only the correct
Brushcutter blades approved for your model.
IMPORTANT: Make sure the blade is
installed for LEFT-HAND rotation (as viewed
from the operator’s position), and all blade
holding parts are assembled correctly and are
secure. (Refer to the Installing Brushcutter
Blade on page 6.)
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Page 26
Troubleshooting
ProblemCauseAction
Engine Will Not Start
Engine Will Not IdleIdle speed set incorrectlySet idle speed
Engine Lacks Power or Stalls When
Cutting
STOP switch set to off position
Empty fuel tank
Primer bulb wasn’t pushed enoughPress primer bulb until fuel flows
Engine floodedUse warm engine starting
Throttle wire has come looseTighten throttle wire
Dirty air filterClean or replace air filter
Move switch to on position
Fill fuel tank
through fuel return line
procedure
If further assistance is required, contact your local authorized Toro service dealer.
Specifications
Note:All models are CARB approved.
53020
Engine Displacement26cc
53021
Engine Displacement32cc
ShaftStraight (59”/150 cm)
steel with 6 ball bearings, 5 bushings
Anti VibrationDual Isolation – grip
and engine mount
CarburetorWalbro – Choke Type
Ignition SystemSolid State
Fuel Tank Capacity0.85 qts. (0.8 liter)
Gas to Oil Ratio50:1
Standard Blade Type10”, 8-tooth
Weight15.7 lbs. (7.1 kg)
Spark PlugNGK BPM6Y
Spark Plug Gap.024–.028 in
and engine mount
CarburetorWalbro – Choke Type
Ignition SystemSolid State
Fuel Tank Capacity1.05 qts. (1 liter)
Gas to Oil Ratio50:1
Standard Blade Type10”, 8-tooth
Weight16.2 lbs. (7.3 kg)
Spark PlugNGK BPM6Y
Spark Plug Gap.024–.028 in
Federal and California Emission Control Warranty Statement
A Two Year Limited Warranty
Your Warranty Rights and Obligations
The U.S. Environmental Protection Agency (EPA), the California Air Resources Board (CARB) and Toro
are pleased to explain the emission control system warranty on your 1995 and later utility/lawn/garden
equipment engine. In California, new utility/lawn/garden equipment engines must be designed, built and
equipped to meet the State’s stringent anti–smog standards. In other states, new 1997 and later model
year utility/lawn/garden equipment engines must be designed, built and equipped, at the time of sale, to
meet the U.S. EPA regulations for small nonroad engines. The equipment engine must be free from
defects in materials and workmanship which cause it to fail to conform with U.S. EPA standards for the
first two years of engine use from the date of sale to the ultimate purchaser. Toro must warrant the
emission control system on your utility/lawn/garden equipment engine for the period of time listed above
provided there has been no abuse, neglect or improper maintenance of your utility/lawn/garden
equipment engine.
Your emission control system may include parts such as the carburetor or fuel injection system, the
ignition system, and catalytic converter. Also included may be hoses, belts, and connectors and other
emission related assemblies.
Where a warrantable condition exists, Toro will repair your engine at no cost to you including diagnosis,
parts and labor.
Manufacturer’s Warranty Coverage:
Utility/Lawn/Garden equipment engines are warranted for two years from the date of delivery. If
any emission–related part on your engine is defective in materials or workmanship, the part will be
repaired or replaced by Toro free of charge.
Owner’s Warranty Responsibilities:
•As the engine owner, you are responsible for the performance of the required maintenance listed
in your owner’s manual. Toro recommends that you retain all receipts covering maintenance on
your equipment, but Toro cannot deny warranty solely for the lack of receipts or for your failure
to ensure the performance of all scheduled maintenance.
•Any replacement part or service that is equivalent in performance and durability may be used in
non–warranty maintenance or repairs, and shall not reduce the warranty obligations of the
engine manufacturer.
•As the engine owner, you should, however, be aware that Toro may deny you warranty
coverage if your engine or a part has failed due to abuse, neglect, improper maintenance or
unapproved modifications or parts.
•You are responsible for presenting your equipment engine to a TORO Service Dealer as soon as
a problem exists. The warranty repairs should be completed in a reasonable amount of time,
not to exceed 30 days.
•If you have any questions regarding your warranty rights and responsibilities or if you need a
referral to a TORO Service Dealer, please feel free to contact us at the following address:
Toro Customer Service Department
8111 Lyndale Avenue South
Bloomington, MN 55420–1196
612–888–8801
800–348–2424
Warranted Parts:
The warranty period begins on the date the engine or equipment is delivered to a retail purchaser.
The manufacturer warrants to the initial owner and each subsequent purchaser that the engine is free
from defects in materials and workmanship which cause the engine to fail to conform with
applicable regulations for a period of two years.
Rev. 10/29/97
Page 28
Failures caused by abuse, neglect, or improper maintenance are not covered. The use of add–on or
modified parts can be grounds for disallowing a warranty claim. The manufacturer is not liable to
cover failures of warranted parts caused by the use of add–on or modified parts. Toro is liable for
damages to other engine components caused by the failure of a warranted part still under warranty.
The owner is responsible for the performance of the required maintenance, as defined by the
manufacturer in the written instructions.
Any warranted part which is not scheduled for replacement as required maintenance, or which is
scheduled only for regular inspection to the effect of ”repair or replace as necessary” shall be
warranted for the warranty period. Any warranted part which is scheduled for replacement as
required maintenance shall be warranted for the period of time up to the first scheduled replacement
point for that part. Coverage under this warranty extends only to the parts listed below (the
emissions system parts) to the extent that these parts were present on the engine when purchased.
–Fuel Metering System
•Cold start enrichment system including the choke mechanism or priming system
•Fuel pump
•Air fuel ratio feed back system
•Carburetor and internal parts
•Fuel injection system
–Air Induction System
•Air cleaner
•Reed intake system
•Intake manifold
•Controlled hot air intake system
–Ignition System
•Spark plug(s)
•Ignition coils and electronics
•Advance/retard mechanisms
–Catalytic Converter/Thermal Reactor System
•Catalytic converter
•Thermal reactor
•Exhaust manifold
–Air Injection System
•Air injection system or pulse valve
•Valves affecting distribution of air
–Exhaust Gas Recirculation (EGR) System
•EGR valve body and piping system connecting to the intake side of the engine
•EGR control system
–Particulate Controls
•Traps filters, precipators and any other device used to capture particulate emissions
–Miscellaneous Items Used in the Above Systems
•Vacuum, temperature, and time sensitive valves and switches
•Electronic controls
•Hoses, connectors, and assemblies of same
How to Get Warranty Service:
Should you feel your TORO Product requires warranty service, contact the dealer who sold you the
product or any Authorized TORO Service Dealer or TORO Master Service Dealer. The Yellow
Pages of your telephone directory is a good reference source. The dealer will either arrange service
at his/her dealership or recommend another Authorized Service Dealer who may be more
convenient. You may need proof of purchase (copy of registration card, sales receipt, etc.) for
Page 29
warranty validation. The owner shall not be charged for diagnostic labor which leads to the
determination that a warranted part is defective, if the diagnostic work is performed at a warranty
station.
The Toro Company is not liable for indirect, incidental or consequential damages in connection
with the use of the TORO Products covered by this warranty, except for damages to other engine
components caused by the failure of a warranted part still under warranty. Some states do not
allow exclusions of incidental or consequential damages, so the above exclusion may not apply to
you.
This warranty gives you specific legal rights, and you may also have other rights which vary from
state to state.
The Toro Company promises to repair any TORO Product
used for commercial, institutional, or rental purposes if defective in materials or workmanship for a period of one year from
the date of purchase. The cost of parts and labor are included, but the customer pays the transportation cost. Transportation within a 15-mile radius of a TORO ProLine Service
Dealer is covered under this warranty for Riding Products,
Mid-size Mowers and Turf Maintenance Equipment.
What Products Are Covered By This Warranty?
The following products and their attachments are covered by
this warranty:
TORO Products used for residential use are covered by a full
two-year warranty.
How Do You Get Warranty Service?
Should you feel your TORO Product contains a defect in materials or workmanship, contact the dealer who sold you the
product or any TORO ProLine Service Dealer. The Yellow
Pages of your telephone directory is a good reference
source; look under TORO Commercial Service Dealers. The
Service Dealer will either arrange service at his/her dealership or recommend another authorized Service Dealer who
may be more convenient. You may need proof of purchase
(copy of registration card, sales receipt, etc.) for warranty
validation.
If for any reason you are dissatisfied with a Service Dealer ’s
analysis of the defect in materials or workmanship or if you
need a referral to a TORO ProLine Service Dealer, please feel
free to contact us at the following address:
What Must You Do To Keep The Warranty In Effect?
You must maintain your TORO Product by following the maintenance procedures described in the operator’s manual. Such
routine maintenance, whether performed by a dealer or by
you, is at your expense.
What Does This Warranty Not Cover?
and
How Does Your State Law Relate To This Warranty?
There is no other express warranty except for special emission system coverage on some products and as described
above. This express warranty does not cover:
SCost of regular maintenance service or parts, such as
SAny product or part which has been altered or misused or
required replacement or repair due to normal wear, accidents, or lack of proper maintenance.
SRepairs necessary due to improper fuel, contaminants in
the fuel system, or failure to properly prepare the fuel system prior to any period of non-use over three months.
SPickup and delivery charges for distances beyond a
15-mile radius from a TORO ProLine Service Dealer.
All repairs covered by this warranty must be performed by a
TORO Service Dealer using T o ro approved replacement parts.
The Toro Company is not liable for indirect or consequential damages in connection with the use of the TORO
Products covered by this warranty, including any cost or
expense of providing substitute equipment or service during reasonable periods of malfunction or non-use pending completion of repairs under this warranty. Some
states do not allow exclusions of incidental or consequential damages, so the above exclusion may not apply
to you.
This warranty gives you specific legal rights, and you may
also have other rights which vary from state to state.