Toro 53020, 53021 Operator's Manual
ProLine Brushcutter
Model No. 53020 — 895001 & Up
Model No. 53021 — 895001 & 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. 3322-369
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
Contents
Introduction 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operator Safety 3. . . . . . . . . . . . . . . . . . . . . . . . . . .
Brushcutter Safety 3. . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Safety 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Brushcutter Operating Safety 4. . . . . . . . . . .
Safety and Instruction Decals 5. . . . . . . . . . . . . . . . . . .
Assembly 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bullhorn Handle Installation 6. . . . . . . . . . . . . . . . .
Installing Shield 6. . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing Brushcutter Blade 7. . . . . . . . . . . . . . . . . .
Attaching Strap 8. . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing Brushcutter Blade Cover 8. . . . . . . . . . . .
Before Operation 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil and Fuel 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mixing Gasoline And Oil 10. . . . . . . . . . . . . . . . . . . .
Starting And Stopping 11. . . . . . . . . . . . . . . . . . . . . .
Hot Restart 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page
Page
Operation 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Position 12. . . . . . . . . . . . . . . . . . . . . . . . .
Cutting Direction 13. . . . . . . . . . . . . . . . . . . . . . . . . .
Cutting Blades 13. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Filter 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spark Plug 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Filter 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Idle Speed Adjustment 16. . . . . . . . . . . . . . . . . . . . . .
Cylinder Cooling Fins 16. . . . . . . . . . . . . . . . . . . . . .
Spark Arrester 17. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust Muffler 17. . . . . . . . . . . . . . . . . . . . . . . . . . .
Gearcase Maintenance 18. . . . . . . . . . . . . . . . . . . . . .
General Cleaning and Tightening 18. . . . . . . . . . . . .
Blade Sharpening 18. . . . . . . . . . . . . . . . . . . . . . . . . .
Storage 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Federal and California Emission Control
Warranty Statement 23. . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WARNING:
The engine exhaust from this product
contains chemicals known to the State of
California to cause cancer, birth defects,
or other reproductive harm.
The Toro Company – 1998
All Rights Reserved
1
Introduction
Thank you for purchasing a T oro product.
All of us at T oro 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
T oro 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).
Figure 1
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
9. Model and Serial Number
Decal (on rear of engine
stand)
10. Brushcutter Blade
11. Blade Shield
12. Strap
13. Throttle Cable and Stop
Switch Wires
14. Fuel Tank
15. Air Filter
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. Although T oro 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. T wo other words are also used to highlight
information. “Important” calls attention to special
mechanical information and “Note” emphasizes general
information worthy of special attention.
2
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.
3. Always wear eye protection that complies with ANSI
(American National Standards Institute) Z87–1.
4. Always wear hearing protection.
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. 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 14.
3. Make sure the Brushcutter blade does not rotate at
engine idle speed. Refer to Idle Speed Adjustment,
page 16.
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 T oro.
7. Maintain the Brushcutter according to the
recommended maintenance intervals and procedures in
the Maintenance section on page 14.
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.
8. Keep handles clean of oil, fuel and dirt.
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.
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.
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
6. Move the Brushcutter at least 10 feet (3 m) away from
the fueling location before starting the engine (Fig. 2).
m-3021
Figure 2
1. 10 feet (3m) Minimum
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.
Figure 3
1. 50 ft. (15 m) Minimum
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.
7. Never operate the Brushcutter without proper guards
or other protective safety devices in place.
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 .
9. When cutting heavy brush or small trees, always swing
the Brushcutter from right to left to prevent kick-back
(Figs 12 and 13).
m-2967
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 6).
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).
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
T oro.
4
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.
ON SHAFT
(Part No. M221501)
ON SHAFT
(Part No. M221502)
ON ENGINE
(Part No. M266291)
5
Assembly
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. 4).
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. 4).
3. Adjust the bullhorn handles to the desired position,
then tighten the four Phillips hex head screws (Fig. 4).
Installing Shield
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. 5).
2. Install and tighten the four M5 x 12 screws (Fig. 5).
1. Throttle Trigger/Stop
Switch
2. Stop Switch Wires/Throttle
Cable
Figure 4
3. Clamp Bracket
4. Screw (4)
5. Bullhorn Handle (2)
m-3022
1. Gearcase
2. Blade Shield
m-2990
Figure 5
3. M5 x 12 Screw (4)
6
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.
1. Remove the blade bolt, stabilizer and clamping washer
from the splined shaft out of the gearcase (Fig. 6).
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.
1. Gearcase
2. 3mm Hex Wrench
3. Splined Shaft
4. Boss Adapter
5. Edger Blade (eight-tooth)
m-2984
Figure 6
6. Clamping Washer
7. Stabilizer
8. Blade Bolt (left-hand
thread)
2. Install the brushcutter blade onto the boss adapter, then
reinstall the clamping washer, stabilizer and blade bolt
(Fig. 6).
3. Align the hole in the boss adapter with the hole in the
gearcase (Fig. 6).
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. 6).
5. Tighten blade bolt to 100 in.-lbs. (11.3 NSM) (Fig. 6).
6. Remove the 3mm hex wrench from the boss adapter
and gearcase (Fig. 6).
7
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