Toro 22604 User manual

Form No. 3366-779 Rev B
Brush Chipper
Model No. 22604-Serial No. 310000001 and Up
Model No. 22604THD-Serial No. 310000001 and Up
Register your product at www.Toro.com
Operator’s Manual
Original Instructions (EN)

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This product complies with the US National Highway Traffic
Safety Administration (NHTSA) regulations for street legal
trailers.
WARNING
The engine exhaust from this product contains chemicals
known to the State of California to cause cancer, birth
defects, or other reproductive harm.
This spark ignition system complies with Canadian
ICES-002.
In some areas, there are local, state, or federal regulations
requiring that a spark arrester be used on the engine of this
machine. A spark arrester is not incorporated with the muffler
assembly.
Important This engine is not equipped with a spark arrester
muffler. 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 without a spark
arrester muffler maintained in working order, or the engine
constricted, equipped, and maintained for the prevention of
fire. Other states or federal areas may have similar laws.
The enclosed Engine Owner’s Manual is supplied for
information regarding the US Environmental Protection
Agency (EPA) and the California Emission Control
Regulation of emission systems, maintenance, and
warranty. Replacements may be ordered through the
engine manufacturer.
INTRODUCTION
This brush chipper is designed to chip branches, vines, leaves,
and small tree limbs up to 6 in. (15.24 cm) in diameter. It is
not intended to chip rocks, wire, metal, or any materials other
than wood. The brush chipper can be towed behind a vehicle
equipped with an appropriate ball hitch.
You may contact Toro directly at www.Toro.com for product
and accessory information, help finding a dealer, or to register
your product.
Read this information carefully to learn how to operate and
maintain your product properly and to avoid injury and
product damage. You are responsible for operating the
product properly and safely.
Whenever you need service, genuine Toro parts, or additional
information, contact an Authorized Service Dealer or Toro
Customer Care and have the model and serial numbers of
your product ready. Write the numbers in the space provided.
This Manual identifies potential hazards and has safety
messages identified by the safety alert symbol, (Figure 1)
which signals a hazard that may cause serious injury or death
if you do not follow the recommended precautions.
Figure 1
1. Safety alert symbol
This manual uses two other words to highlight information.
Important calls attention to special mechanical information
and Note emphasizes general information worthy of special
attention.
Tire Information
The tire identification number (TIN) is branded into the
sidewall of all street legal tires (Figure 2).
Figure 2
1. Tire identification number (TIN)
SAFETY
Hazard control and accident prevention are dependent
upon the awareness, concern, and proper training of the
personnel involved in the operation, transport,
maintenance, and storage of the machine. Improper use or
maintenance of the machine can result in injury or death.
To reduce the potential for injury or death, comply with
the following safety instructions.
Safe Operating Practices
This product is capable of crushing and amputating hands and
feet. Always follow all safety instructions to avoid serious
injury or death.
WARNING
Engine exhaust contains carbon monoxide, an odorless,
deadly poison that can kill you.
Do not run the engine indoors or in an enclosed area.
If you believe that your vehicle* has a defect which could
cause a crash or could cause injury or death, you should
immediately inform the National Highway Traffic Safety
Administration (NHTSA) in addition to notifying The Toro
Company.
If NHTSA receives similar complaints, it may open an
investigation, and if it finds that a safety defect exists in a

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group of vehicles*, it may order a recall and remedy
campaign. However, NHTSA cannot become involved in
individual problems between you, your dealer, or The Toro
Company.
To contact NHTSA, you may call the Vehicle Safety Hotline
toll-free at 1–888–327–4236 (TTY: 1–800–424–9153); go to
http://www.safercar.gov ; or write to: Administrator, NHTSA,
400 Seventh Street, SW., Washington, DC 20590. You can
also obtain other information about motor vehicle safety from
http://www.safercar.gov.
* brush chipper trailer
Training
•Read the Operator’s Manual and other training material. If
the operator(s) or mechanic(s) can not read English, it is the
owner’s responsibility to explain this material to them.
•Do not allow anyone to operate the machine who has not
read the Operator’s Manual or has not been instructed on the
safe use of the machine.
•Never let children or untrained people operate or service the
equipment. Local regulations may restrict the age of the
operator.
•All operators and mechanics should be trained. The owner is
responsible for training the users.
•Keep the operator zone and adjacent area clear for safe,
secure footing.
Towing
Check with your local county or state safety towing
regulations, in addition to meeting Department of
Transportation (DOT) Safety Towing Regulations, before
towing the machine.
•In order to reduce the possibility of an accident while
transporting the machine on public roads, ALWAYS make
sure the towing vehicle is mechanically sound and in good
operating condition.
•ALWAYS shutdown engine before transporting the
machine.
•ALWAYS inspect the hitch and coupling for wear. NEVER
tow the machine with defective hitches, couplings, chains,
etc.
•Check the tire air pressure on both towing vehicle and
machine. The tires should be inflated to 60 psi (410 kpa) cold.
•Check the tire tread for wear.
•ALWAYS properly attach the safety chains to towing
vehicle.
•ALWAYS make sure that the towing vehicle’s directional,
backup, and brake lights are working properly.
•Avoid sudden stops and starts. This can cause skidding, or
jack knifing. Smooth, gradual starts and stops will improve
towing.
•Avoid sharp turns to prevent rolling. Tow only with a
vehicle that has a hitch designed for towing. Do not attach
towed equipment except at the hitch point.
Before towing check to make certain your machine is
correctly and securely attached to the towing vehicle.
•Be sure that the ball hitch you are using is the proper size
for the hitch coupler on the machine.
•Be sure the safety chains are properly hooked to the vehicle
leaving enough slack for turning.
•Be sure the jack stand is secured in the UP position.
•Do not tow the machine faster than 45 mph (75 km/h).
•Use caution when backing up; use a spotter outside the
vehicle to guide you.
•Do not allow anyone to sit or ride on unit when towing.
•Never carry any cargo or wood on unit when towing.
•Always disconnect the unit from the tow vehicle before
using it.
•Place chock blocks underneath wheel to prevent rolling
while unit is parked.
Preparation
Become familiar with the safe operation of the equipment,
operator controls, and safety signs.
•Always wear safety glasses or safety goggles while
operating this machine.
•Wear tight fitting gloves without draw strings or loose cuffs.
•Never wear jewelry or loose clothing that might become
entangled in moving or rotating parts of the machine.
•Wear shoes with non-slip treads when using your machine.
If you have safety shoes, we recommend wearing them. Do
not use the machine while barefoot or wearing open sandals.
•Wear long pants while operating the machine.
•Use ear protectors or ear plugs to protect your hearing.
•Make sure the machine is on level surface before operating.
•Always operate the machine from the side of the hopper.
•Block the wheels of the machine to prevent unintended
movement.
•Use extra care when handling gasoline and other fuels. They
are flammable and vapors are explosive.
•Use only an approved fuel container.
•Never remove the gas cap or add fuel when the engine is
running. Allow the engine to cool before refueling. Do not
smoke.
•Never refuel or drain the machine indoors.
•Replace gasoline cap and tighten securely.
•Keep container nozzle in contact with the tank during
filling.
•If gasoline is spilled, wipe it off the engine and equipment.
Operation
Before every use:
•Inspect the coupler, ball and hitch.
•Always use safety chains.
•Verify all lights are functioning properly.
•Verify the tires are properly inflated as recommended.
•Verify lug nuts are tight and torqued properly.
•Machine is properly secured.
•Before starting this machine, review the “Safety
Instructions.” Failure to follow these rules may result in
serious injury to the operator or bystanders.

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•Never leave this machine unattended with the engine
running.
•Never operate machine while under the influence of alcohol,
drugs, or medication.
•Never allow anyone to operate this machine without proper
instruction.
•Always operate this machine with all safety equipment in
place and working.
•Do not change the engine governor setting or over speed the
engine.
•Never place your hands, feet, or any part of your body in the
hopper, discharge chute opening, or near or under any moving
part while the machine is running.
•Keep area of discharge clear of people, animals, buildings,
glass, or anything else that will obstruct clear discharge, cause
injury, or damage. Wind can also change discharge direction,
so be aware. If it becomes necessary to push material into the
hopper, use a small diameter stick, not your hands.
•Never use the machine with the hopper or discharge chute
removed.
•Always operate the machine from along side the hopper.
Never pass or stand on the discharge side of the machine
when the engine is running or the flywheel is turning.
•Clear the area of objects such as wire, rope, etc. Inserting
these objects into the hopper could damage the flywheel
and/or cause injury.
•Keep your face and body back from the hopper to avoid
accidental bounce back of any material.
•If you hear or see material being kicked back against the
rubber flap shut the feeder chute door until the debris has
passed.
•When feeding material into the hopper, be extremely careful
that pieces of metal, rocks or other foreign objects are not
included. Personal injury or damage to the machine could
result.
•Whenever you leave the operating position or if you have to
remove processed material, leaves, or debris from the
machine, always shut off the engine and wait five minutes to
make certain the flywheel and all moving parts have come to
a complete stop and cool. Remove the key, disconnect the
spark plug wires and keep the wire away from the spark plug
to prevent accidental starting before adjusting the machine.
•If the cutting mechanism strikes a foreign object or if your
machine should start making an unusual noise or vibration,
stop the engine and wait five minutes for all moving parts to
come to a complete stop and cool. Vibration is generally a
warning of trouble. Disconnect the spark plug wires and
inspect for clogging or damage. Clean and repair and/or
replace damaged parts.
•Do not touch parts that may be hot from operation. Allow
them to cool before attempting to maintain, adjust, or service.
•Never run an engine in an enclosed area.
•Never move this machine while the engine is running.
•Lightning can cause severe injury or death. If lightning is
seen or thunder is heard in the area, do not operate the
machine; seek shelter.
•Do not touch the engine or muffler while the engine
is running or soon after it is stopped. These areas
could be hot enough to cause a burn.
Maintenance and Storage
•Stop the engine and remove the spark plug wires before
making any repairs. Wait for all movement to stop before
adjusting, cleaning, or repairing.
•Inspect the machine before each use. Make sure all nuts,
bolts, screws, hydraulic fittings, hose clamps, are securely
tightened.
•Clean debris from the muffler and engine to help prevent
fires. Clean up oil or fuel spillage.
•Let the engine cool before storing and do not store near
flame.
•Do not store fuel near flames or drain indoors.
•Park the machine on level ground. Never allow untrained
personnel to service the machine.
•Keep hands and feet away from moving parts. If possible,
do not make adjustments with the engine running.
•Keep all parts in good working condition and all hardware
tightened. Replace all worn or damaged decals.
•Use extra care when handling gasoline and other fuels. They
are flammable and vapors are explosive.
•Never store the machine or fuel container inside where there
is an open flame, such as near a water heater or furnace.
•Use only genuine Toro replacement parts to ensure that
original equipment standards are maintained.

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Safety and Instructional 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.
119-4698
1. Warning – read the Operator’s Manual.
2. Warning – do not operate the brush chipper unless you have
been trained.
3. Thrown object hazard – wear safety glasses.
4. Thrown object hazard – keep bystanders a safe distance from
the machine.
5. Rotating flywheel hazard – keep hands away from moving parts.
119-4699
1. Warning – wear leather gloves with narrow cuffs.
2. Warning – operate from the side of the hopper.
3. Severed hand hazard – keep hands out of the hopper
4. Thrown object hazard – keep bystanders a safe distance from
the machine.
119-4696
1. Warning – do not exceed 45 mph (72 km/h) when transporting
the machine.
117-1754
1. Rotation – direction of flywheel.
117-2718
117-4979
1. Belt entanglement hazard – keep hands away from moving parts.
119-4720
1. Cut hand hazard and thrown object hazard –
1 – stop the engine and remove the key
2 – wait for all moving parts to stop rotating
3 – before opening cover
120-3738
1. Maximum log size
*Kohler Part Number 24 113 176
1. Torque air filter nut to 60 in. lbs.

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Product Overview
Figure 3
1. Coupler 8. Hopper
2. Safety Chains 9. Key switch
3. Jack stand 10. Fuel cap
4. Chute locking pin 11. Air filter
5. Deflector locking knob 12. Throttle
6. Battery box 13. Choke
7. Flywheel bearing 14. Fuel filter
Controls
Hopper Latch
The hopper, mounted on the side of the machine, swings
down for machine operation. The revolving blades mounted
on a flywheel behind the hopper turns branches fed into the
hopper into “chips”. The chipper can chip branches and vines
ranging in size up to 6” in diameter.
To release the hopper latch (Figure 4), pull on the handle and
rotate up or down to engage latch pin behind stop.
Pull hopper down to open.
Figure 4
1. Hopper latch
7 6
5
8
4
1213
14
11
3 1
2
9
10

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Specifications
Engine......................................... 25 HP (18.6 kW) Kohler
Hopper Opening......................... 6 inch (15 cm) maximum
Wheels & Tires...............................High-Speed, 4.80 x 12
Hitch Coupler ................................................2 inch (5 cm)
Safety Chains........................................................Standard
Jack Stand with two caster wheels.................4.10/3.50 x 4
Fuel Tank Capacity..................................5.5 Gal. (20.8 L)
Length................................................ 101 inches (256 cm)
Width ................................................. 35.5 inches (90 cm)
Height .............................................. 79.4 inches (202 cm)
Weight ...................................................1056 lbs (478 Kg)
Towing
WARNING
Do not tow over 45 mph (75 km/h).
IMPORTANT Always turn fuel valve to the OFF position
before transporting the machine.
1. Raise hopper and lock into the up position. Rotate the chute
toward the rear of the machine, lock in position with the
chute locking pin and tighten chute locking knob.
2. Crank the handle of the lift jack to align the coupler with
the ball of the tow vehicle.
3. Remove the locking pin from the lever, squeeze the latch
lock and lift the lever up to open the coupler (Figure 5).
Figure 5
1. Tongue 4. Coupler
2. Lever in locked position 5. Safety chains
3. Locking pin
4. Attach coupler to a class I or higher 2 inch
(50.8 mm) ball on a towing vehicle and latch securely.
•If coupler does not fit over the ball, turn adjustment nut one
turn counter-clockwise.
•If coupler hitch is too loose on the ball, turn adjustment nut
one turn clockwise.
WARNING
Failure to properly engage the hitch ball in the coupler
ball socket and securely lock the coupler latch mechanism
can cause the unit to become detached from the tow
vehicle while traveling, which may cause serious injury
and property damage.
5. Install the locking pin to secure the lever (Figure 5).
6. Cross or “X” the safety chains and attach them to the holes
on the hitch.
7. Plug tail light wire harness connector to the tow vehicle
connector. Check to make sure the brake lights illuminate
properly with the brake pedal applied and the taillights
flash when the turning signals are use.
Figure 6
1. Release pin 2. Jack stand
8. Raise jack stand (Figure 6) so caster wheels are free of the
ground, pull the release pin and rotate wheels rearward and
lock in the horizontal position.
Tires and Wheels
The most common cause of tire trouble is under-inflation. It is
important that you maintain full air pressure as indicated by
the tire manufacturer on the tire’s sidewall or on the trailer
manufacturer’s certification label.
Inflate main axle tires to....................... 60 psi (410 kpa)
Check the torque of the wheel lug nuts initially and after the
first 10 hours of operation.
Torque wheel lug nuts to .... 80-90 ft. lbs (108-122 N·m)

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Operation
Before You Start
Review all the machine’s safety decals.
Disconnect the unit from the tow vehicle, position it on a
level location and block the wheels front and back to prevent
it from moving.
Ensure you are familiar with safety regulations and shutdown
procedures described in the Operator’s Manual.
Before operating the brush chipper, always wear protective
gear, such as safety goggles, face shield, hearing protection,
tight fitting gloves without draw strings or loose cuffs.
Check the fuel and oil level of the engine, and the hydraulic
fluid in the reservoir.
Adding Fuel
Use unleaded gasoline (87 pump octane minimum). Leaded,
regular gasoline may be used if unleaded us not available.
WARNING
In certain conditions, gasoline is extremely flammable
and highly explosive. A fire or explosion from gasoline
can burn you and others and can damage property.
• Fill the fuel tank outdoors, in an open area, when the
engine is cold. Wipe up any gasoline that spills.
• Never fill the fuel tank inside an enclosed trailer.
• Do not fill the fuel tank completely full. Add gasoline to
the fuel tank until the level is 1/4 to 1/2 inch (6 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.
• Do not operate without entire exhaust system in place
and in proper working condition.
WARNING
In certain conditions during fueling, static electricity can
be released causing a spark which can ignite the gasoline
vapors. A fire or explosion from gasoline can burn you
and others and can damage property.
• Always place gasoline containers on the ground away
from your vehicle before filling.
• Do not fill gasoline containers inside a vehicle or on a
truck or trailer bed because interior carpets or plastic
truck bed liners may insulate the container and slow the
loss of any static charge.
• When practical, remove gas-powered equipment from
the truck or trailer and refuel the equipment with its
wheels on the ground.
• If this is not possible, then refuel such equipment on a
truck or trailer from a portable container, rather than
from a gasoline dispenser nozzle.
• If a gasoline dispenser nozzle must be used, 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 methanol, gasoline containing methanol, or
gasohol containing more than 10% ethanol because the fuel
system could be damaged. Do not mix oil with gasoline.
Using Stabilizer/Conditioner
Use a fuel stabilizer/conditioner in the machine to provide the
following benefits:
• Keeps gasoline fresh during storage of 90 days or less. For
longer storage it is recommended that the fuel tank be
drained.
• Cleans the engine while it runs.
• Eliminates gum-like varnish buildup in the fuel system,
which causes hard starting.
Do not use fuel additives containing methanol or ethanol.
Add the correct amount of gas stabilizer/conditioner to the
gas.
A fuel stabilizer/conditioner is most effective when mixed
with fresh gasoline. To minimize the chance of varnish
deposits in the fuel system, use fuel stabilizer at all times.
Filling the Fuel Tank
1. Park the machine on a level surface and stop the engine.
2. Allow the engine to cool.
3. Clean around the fuel tank cap and remove it (Figure 7).
Figure 7
1. Fuel tank cap
4. Only fill tank to bottom of the fill neck tube, do not
overfill.
Hour Meter
The hour meter records the number of hours the engine has
operated. It operates when the engine is running.
Figure 8
1. Hourmeter

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Checking the Engine Oil Level
The best time to check the engine oil is when the engine is
cool before it has been started for the day. If it has already
been run, allow the oil to drain back down to the sump for at
least 10 minutes before checking. If the oil level is at or
below the “L” mark on the dipstick, add oil to bring the oil
level to the “H” mark. Do not overfill. If the oil level is
between the “H” and “L” marks, no oil addition is required.
1. Place the machine on a flat level surface, and stop the
engine.
2. Allow the engine to cool.
3. Clean around the oil dipstick.
4. Remove the dipstick and wipe the end clean.
5. Slide the dipstick fully into the dipstick tube without
threading it into the filler neck.
6. Pull the dipstick out and look at the end. The oil should be
to the top of the upper limit range (Figure 9).
Figure 9
1. Oil dipstick 3. Valve cover
2. Oil Fill 4. Metal end
Running the engine with low oil level can cause engine
damage. This type of damage is not covered by warranty.
7. If the oil level is low, slowly pour only enough oil into the
crankcase to raise the level to the upper limit. See
Maintenance section for oil specifications.
Do not overfill the crankcase with oil because the engine
may be damaged.
8. Replace the dipstick.
Changing the Chute Position
The chute on this machine can be rotated to use in various
positions. Rotate to the side, away from the hopper when
using the machine.
1. To rotate, loosen the clamp knob, then press the spring-
loaded button on the locking pin handle IN and pull the
locking pin from the chute plate (Figure 10).
2. Set the chute in the position desired and secure with clamp
knob.
Figure 10
1. Locking Pin - Button 2. Clamp knob
Changing the Deflector Position
The deflector on the end of the chute can be rotated up and
down to direct the discharge of chips.
1. Loosen the deflector knob and rotate the chute into the
desired position (Figure 11).
2. Tighten the deflector knob.
Figure 11
1. Chute deflector 2. Knob
1
2
2

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Starting and Stopping the
Engine
Starting the Engine
1. Move the choke lever left to the ON position if you are
starting a cold engine (Figure 12). A warm or hot engine
may not require choking.
2. Move the throttle lever 1/3 way to the FAST position
(Figure 12).
Figure 12
1. Choke 2. Throttle
3. Turn the engine ignition switch to the START position
(Figure 13).
Figure 13
1. Ignition Switch
6. After the engine starts, release key to the RUN position.
7. Gradually move the choke lever back to the Off position. If
the engine stalls or hesitates, move the choke back to On
again until the engine warms up. Then move it to the Off
position.
8. When ready to chip brush, move the throttle lever to the
FAST position.
Stopping the Engine
1. Move the throttle lever to the SLOW position. If the engine
has been working hard or is hot, let it run for a minute
before turning off. This helps to cool the engine before
stopping. In an emergency, the engine may be stopped
immediately.
2. Turn the ignition switch to the OFF position.
Using the Brush Chipper
WARNING
Do not attempt to operate the brush chipper without fully
understanding all instructions, safety precautions, and/or
warnings.
• Always wear protective gear, such as safety goggles or
face shield, hearing protection, tight-fitting gloves without
draw strings or loose cuffs when using the machine.
• Make sure you are standing in the safe operating area,
as shown in pictures (Figure 15 and 16).
• Never place any part of your body into a position that
causes an unsafe operating condition.
1. Place the brush chipper on level, dry ground, disconnect
from tow vehicle, and block the front and back of both
wheels to prevent any movement.
2. Make sure you read all the recommendations from the
“Safety” section before using the brush chipper.
3. Start the engine; refer to Starting the Engine and allow
engine to warm up at idle for two minutes.
4. Lower the hopper (Figure 14).
Figure 14
IMPORTANT:
• Do not force material into the chipper. If the machine does
not chip well, the chipper knife or cutter block may need to
be sharpened or replaced.
• Extremely hard knots will not process very well. Short stubs
that have not self-fed through the chipper can be pushed
through with the next branch to be chipped, or simply close
the upper chute.
1
2