Toro 51998 Operator's Manual
Form No. 3396-427 Rev. A
18 in. String Trimmer - Straight Shaft
Item No. 51998—315000001 & Up
NOTICE
Do not use E15, E20 or E85 fuel in this
product. It is a violation of federal law
and will damage the unit and void your
warranty. Only use unleaded gasoline
containing up to 10% ethanol.
If you have questions concerning
your trimmer, please call us
at 866-574-9242 (US) or
866-574-9243 (Canada).
WARNING:
To reduce the risk of injury, the user must read and understand the operator’s manual. Save this manual.
English (EN), French (FR), and Spanish (ES)
READ THIS INFORMATION
866-574-9243 (Canada)
STOP
Before you use your new trimmer, read the following helpful hints to
get you started.
Fueling
WARNING:
Gasoline and its vapors are highly ammable and
explosive. To prevent serious personal injury and
property damage, handle it with care. Keep away
from ignition sources and open ames, handle
outdoors only, do not smoke and wipe up spills
immediately.
1. Obtain a clean container that is approved for use with gasoline.
2. Mix all of the 2-cycle oil provided with 1 US gallon of 87-octane, unleaded gasoline (50:1).
3. Fill the trimmer’s gas tank carefully.
Cold Starting vs. Warm Starting
When you restart the trimmer and you are not sure whether the engine is still warm, set the choke
lever to RUN and pull the starter grip and rope. If the engine does not start within 5 pulls, refer to
“To Start a Cold Engine” later in this manual.
Flooded Engine
Will the engine start? If not, it may be ooded. Relax, this is easy to correct. Set the choke lever to
RUN. Squeeze the trigger and pull the starter grip and rope quickly for 10 to 12 pulls.
If the engine does not start, refer to “Troubleshooting” later in this manual or call toll-free at
866-574-9242 (US) or 866-574-9243 (Canada).
For questions concerning your trimmers,
call us toll free at 866-574-9242 (US) or
CALL
866-574-9242 (US) or
California Proposition 65
WARNING: This product, its exhaust, and other substances that may become airborne
from its use may contain chemicals, including lead, known to the State of California to cause cancer,
birth defects, or other reproductive harm. Wash hands after handling.
866-574-9243 (Canada).
2
Table of Contents
Introduction ...................................................................................................................................................................................4
General Safety Rules ................................................................................................................................................................. 5-6
Specic Safety Rules ....................................................................................................................................................................6
Symbols.........................................................................................................................................................................................7
Product Labels ..............................................................................................................................................................................8
Features ..................................................................................................................................................................................... 8-9
Product Specications ...........................................................................................................................................................8
Know Your Product ...............................................................................................................................................................9
Assembly................................................................................................................................................................................10-11
Unpacking ............................................................................................................................................................................10
Packing List .........................................................................................................................................................................10
Attaching the Front Handle .................................................................................................................................................10
Attaching the Grass Deector .............................................................................................................................................. 11
Operation ............................................................................................................................................................................... 12-16
Applications .........................................................................................................................................................................12
Fueling and Refueling the Trimmer .....................................................................................................................................12
Oxygenated Fuels ................................................................................................................................................................12
Starting the Product .............................................................................................................................................................13
Stopping the Product ............................................................................................................................................................14
Operating the Trimmer ........................................................................................................................................................14
To Advance the Cutting Line ...............................................................................................................................................15
Cutting Tips .........................................................................................................................................................................15
Installing Line in REEL-EASY String Head ......................................................................................................................16
Maintenance .......................................................................................................................................................................... 16-21
General Maintenance ...........................................................................................................................................................17
Cleaning the Product ............................................................................................................................................................17
Servicing the Product ...........................................................................................................................................................17
Checking the Fuel Cap, Tank, and Lines .............................................................................................................................17
Cleaning the Air Filter .........................................................................................................................................................17
Replacing the Spark Arrestor ...............................................................................................................................................18
Replacing the Spark Plug .....................................................................................................................................................18
Idle Speed Adjustment .........................................................................................................................................................19
Storing the Product ..............................................................................................................................................................19
Transporting the Product .....................................................................................................................................................19
Installing REEL-EASY String Head .................................................................................................................................20
High Altitude Engine Operation ..........................................................................................................................................21
Maintenance Schedule .........................................................................................................................................................21
Troubleshooting ..........................................................................................................................................................................22
Warranty ......................................................................................................................................................................................23
Table of Contents
3
Introduction
Thank you for purchasing a Toro product.
We would like for you to be completely satised with your new product, so feel free to contact a service dealer for help with
service, genuine Toro parts, or other information you may require.
Whenever you contact a service dealer, always know the item, serial and manufacturing numbers of the product. These numbers will help the service representative provide exact information about your specic product. You will nd the item, serial
and manufacturing number decal located on the motor housing.
For your convenience, write the numbers in the space below.
Item No.
Serial No.
Manufacturing
No.
Data
Label
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 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 you
allow to use the product about safe operation.
The Toro warning system in this manual identies potential hazards and has special safety messages that help you and others
avoid personal injury, even death. DANGER, WARNING, CAUTION and NOTICE are signal words that identify the level
of hazard. However, regardless of the hazard, be extremely careful. Two other words, “Important” and “Note,” highlight
information.
4
Introduction
General Safety Rules
WARNING:
Read and understand all instructions. Failure to follow all instructions may result in electric shock, re
and/or serious personal injury.
Read All Instructions
For safe operation, read and understand all instructions
before using this product. Follow all safety instructions.
Failure to follow all safety instructions listed below, can
result in serious personal injury.
Do not allow children or untrained individuals to use
this unit.
Do not start or operate the engine in a conned space,
building, near open windows, or in other unventilated
space where dangerous carbon monoxide fumes can
collect. Carbon monoxide, a colorless, odorless, and
extremely dangerous gas, can cause unconsciousness or
death.
Clear the work area before each use. Remove all objects
such as rocks, broken glass, nails, wire, or loose string
which can be thrown or become entangled in the cutting
line or blade.
Always wear eye protection with side shields marked to
comply with ANSI Z87.1 along with hearing protection
when operating this equipment.
Wear heavy, long pants, long sleeves, boots, and gloves.
Do not wear loose tting clothing, short pants, sandals,
or go barefoot. Do not wear jewelry of any kind.
Heavy protective clothing may increase operator fa-
tigue, which could lead to heat stroke. During weather
that is hot and humid, heavy work should be scheduled
for early morning or late afternoon hours when tem-
peratures are cooler.
Never operate this unit on the operator’s left side.
Secure long hair above shoulder level to prevent en-
tanglement in moving parts.
Keep all bystanders, children, and pets at least
50 ft. (15 m) away. Bystanders should be encouraged
to wear eye protection. If you are approached, stop the
engine and cutting attachment. If you are using a brush
cutter attachment, there is the added risk of injury to
bystanders from being struck with the moving blade in
the event of a blade thrust or other unexpected reaction
of the saw.
Do not operate this unit when you are tired, ill, upset, or
under the inuence of alcohol, drugs, or medication.
Do not operate in poor lighting.
Keep rm footing and balance. Do not overreach. Over-
reaching can result in loss of balance or exposure to hot
surfaces.
Do not use on a ladder, rooftop, tree, or other unstable
support. Stable footing on a solid surface enables better
control of the unit in unexpected situations.
Keep all parts of your body away from any moving
part.
To avoid hot surfaces, never operate the unit with the
bottom of the engine above waist level.
Do not touch area around the muer or cylinder of the
unit, these parts get hot from operation. Contact with hot
surfaces could result in possible serious personal injury.
Always stop the engine and remove the spark plug wire
before making any adjustments or repairs except for
carburetor adjustments.
Inspect the unit before each use for loose fasteners, fuel
leaks, etc. Replace any damaged parts before use.
The cutting attachment should never rotate at idle dur-
ing normal use. The cutting attachment may rotate at
idle during carburetor adjustments.
It has been reported that vibrations from hand-held
tools may contribute to a condition called Raynaud’s
Syndrome in certain individuals. Symptoms may in-
clude tingling, numbness, and blanching of the ngers,
usually apparent upon exposure to cold. Hereditary
factors, exposure to cold and dampness, diet, smok-
ing, and work practices are all thought to contribute
to the development of these symptoms. It is presently
unknown what, if any, vibrations or extent of exposure
may contribute to the condition. There are measures
that can be taken by the operator to possibly reduce the
eects of vibration:
a) Keep your body warm in cold weather. When oper-
ating the unit wear gloves to keep hands and wrists
warm. It is reported that cold weather is a major
factor contributing to Raynaud’s Syndrome.
b) After each period of operation, exercise to increase
blood circulation.
c) Take frequent work breaks. Limit the amount of
exposure per day.
d) Keep the tool well maintained, fasteners tightened,
and worn parts replaced.
If you experience any of the symptoms of this condi-
tion, immediately discontinue use and see your physi-
cian about these symptoms.
Mix and store fuel in a container approved for gasoline.
Safety Rules
5
Mix fuel outdoors where there are no sparks or ames.
Wipe up any fuel spillage. Move 30 ft. (9 m) away from
refueling site before starting engine. Slowly remove
the fuel cap after stopping engine. Do not smoke when
refueling.
Stop the engine and allow to cool before refueling or
storing the unit.
Specific Safety Rules
Allow the engine to cool; empty the fuel tank into a
container approved for fuel and secure the unit from
moving before transporting in a vehicle.
Wear your 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 o make sure the cutting
attachment has stopped before the unit is set down.
Specific Safety Rules For Trimmer Use
Inspect before use. Replace damaged parts. Make sure
fasteners are in place and secure. Check for fuel leaks.
Replace string head if cracked, chipped, or damaged in
any way. Be sure the string head or blade is properly
installed and securely fastened. Failure to do so can
cause serious injury.
Make sure all guards, straps, deectors, and handles are
properly and securely attached.
Never use blades, ailing devices, wire, or rope. Use
only recommended or equivalent replacement line in the
cutting head. Do not use any other cutting attachment.
To install any other brand of cutting head to this string
trimmer can result in serious personal injury.
Never operate unit without the grass deector in place
and in good condition.
Maintain a rm grip on both handles while trimming.
Keep string head below waist level. Never cut with the
string head located over 30 in. or more above the ground.
This product is intended for infrequent use by homeown-
ers and other occasional users for such general applications as trimming light and heavy vegetation, etc. It is not
intended for prolonged use. Prolonged periods of opera-
tion can cause circulatory problems in the user’s hands
due to vibration. For such use, it may be appropriate to
use a product having an anti-vibration feature.
Save these instructions. Refer to them frequently and
use them to instruct others who may use this tool. If
you loan someone this tool, loan them these instructions
also.
6
Safety Rules / Specific Safety Rules
Symbols
The following signal words and meanings are intended to explain the levels of risk associated with this product.
Symbol Signal Meaning
DANGER:
WARNING:
CAUTION:
NOTICE:
Some of the following symbols may be used on this product. Please study them and learn their meaning for safe operation
of this product.
Symbol Name Explanation
Safety Alert Indicates a potential personal injury hazard.
Read Operator’s Manual
Indicates a hazardous situation, which, if not avoided, will result in
death or serious injury.
Indicates a hazardous situation, which, if not avoided, could result in
death or serious injury.
Indicates a hazardous situation, that, if not avoided, may result in
minor or moderate injury.
(Without Safety Alert Symbol) Indicates information considered
important, but not related to a potential injury (e.g. messages relating
to property damage).
To reduce the risk of injury, user must read and understand opera-
tor’s manual before using this product.
Always wear eye protection with side shields marked to comply
Eye and Hearing Protection
Wear Gloves
Wear Safety Footwear Wear non-slip safety footwear when using this equipment.
Keep Bystanders Away Keep all bystanders at least 50 ft. (15 m) away.
Ricochet
No Blade
Gasoline and Lubricant
with ANSI Z87.1 along with hearing protection when operating this
equipment.
Wear non-slip, heavy-duty protective gloves when handling this
equipment.
Thrown objects can ricochet and result in personal injury or property damage.
Do not install or use any type of blade on a product displaying this
symbol.
Use unleaded gasoline intended for motor vehicle use with an
octane rating of 87 [(R + M)/2] or higher. This product is powered
by a 2-cycle engine and requires pre-mixing gasoline and 2-cycle
lubricant.
Symbols
7
Product Labels
STOP
Product labels and instructions are easily visible to the operator and are located near any area of potential danger.
Replace damaged or lost labels.
Part No. 940686148
Part No. 940657168
Part No. 940864003
STOP ON
Part No. 940865001
Features
Product Specifications
Name Specification
Engine 25.4cc Full Crank
Cutting Width 18 in.
Line Size .095 in.
8
Product Labels / Features
Know Your Product
See Figure 1.
The safe use of this product requires an understanding of the
information on the tool and in this operator’s manual as well
as a knowledge of the project you are attempting. Before
use of this product, familiarize yourself with all operating
features and safety rules, in both this manual and the operator’s manuals for all attachments that you are using with this
power head.
Engine
The engine is powerful and easy to start. It is eectively
counterbalanced, which allows for less vibration and more
durability.
Ergonomic Design
The design of the product provides for easy handling. It is
designed for comfort and ease of grasp when operating in
dierent positions and at dierent angles.
Grass Deflector
The grass deector helps protect you from ying debris.
Starter
Grip and
Muffler
Trigger
Lock-Out
On/Stop
Switch
Rope
Choke
Lever
String
Head
Grass
Deflector
Front Handle
Throttle
Trigger
Engine
Fuel
Cap
Primer
Bulb
Figure 1
Features
9
Assembly
Unpacking
This product requires assembly.
Carefully remove the product and any accessories from
the box. Make sure that all items listed in the packing
list are included.
WARNING:
To prevent accidental starting that could cause
serious personal injury, always disconnect the
engine spark plug wire from the spark plug
when assembling parts.
WARNING:
Do not use this product if any parts on the pack-
ing list are already assembled to your product
when you unpack it. Parts on this list are not as-
sembled to the product by the manufacturer and
require customer installation. Use of a product
that may have been improperly assembled could
result in serious personal injury.
Inspect the product carefully to make sure no breakage
or damage occurred during shipping.
Do not discard the packing material until you have
carefully inspected and satisfactorily operated the
product.
If any parts are damaged or missing, please call
866-574-9242 (US) or 866-574-9243 (Canada) for assistance.
Packing List
Straight Shaft Trimmer
Front Handle
Straight Shaft Grass Deector
Lubricant
Operator’s Manual
Attaching the Front Handle
See Figure 2.
Follow these steps to attach the front handle.
1. Press the front handle onto the top of the upper shaft, in
the position indicated by the arrow on the shaft, angling
the handle toward the throttle trigger.
2. Place the front handle along the upper shaft to a posi-
tion that allows for comfortable operation.
3. Insert the handle support tab into the slot in the front
handle.
4. Align the hole in the front handle with the hole in the
handle support.
5. Insert bolt through holes in front handle and handle
support. Secure handle in place using wing nut.
Note: Do not cover any portion of the warning label with
the front handle.
Front
Handle
Bolt
WARNING:
If any parts are damaged or missing do not
operate this product until the parts are replaced.
Use of this product with damaged or missing
parts could result in serious personal injury.
WARNING:
Do not attempt to modify this product or create
accessories not recommended for use with this
product. Any such alteration or modication is
misuse and could result in a hazardous condi-
tion leading to possible serious personal injury.
10
Tab
Slot
Throttle
Trigger
Handle
Support
Wing
Nut
Figure 2
Assembly
Attaching the Grass Deflector
See Figure 3.
WARNING:
The line cut-o blade on the grass deector
is sharp. Avoid contact with the blade. Failure
to avoid contact can result in serious personal
injury.
WARNING:
Always attach the grass deector prior to
operating trimmer. Failure to attach the grass
deector can result in debris being thrown at the
operator and result in serious injury.
1. Remove the bolt from the grass deector.
2. Insert the tab on the mounting bracket in the slot on the
grass deector.
3. Align the screw hole in the mounting bracket with the
screw hole in the grass deector.
4. Insert the bolt through the mounting bracket and into
the grass deector.
5. Tighten the bolt securely using a at blade screwdriver
or 5/16 in. wrench.
Bolt
Grass
Deflector
Slot
Tab
Figure 3
Assembly
11
Operation
WARNING:
Do not allow familiarity with this product to
make you careless. Remember that a careless
fraction of a second is sucient to inict
serious injury.
WARNING:
Always wear eye protection with side shields
marked to comply with ANSI Z87.1, along with
hearing protection. Failure to do so could result
in objects being thrown into your eyes and other
possible serious injuries.
WARNING:
Never use blades, ailing devices, wire, or rope
on this product. Do not use any attachments or
accessories not recommended by the manufacturer of this tool. The use of attachments or accessories not recommended can result in serious
personal injury.
Fueling and Refueling the Trimmer
WARNING:
Gasoline and its vapors are highly ammable
and explosive. To prevent serious personal
injury and property damage, handle it with care.
Keep away from ignition sources and open
ames, handle outdoors only, do not smoke and
wipe up spills immediately.
Fuel Mixture
This product is powered by a 2-cycle engine and requires
pre-mixing gasoline and 2-cycle lubricant. Pre-mix unleaded
gasoline and 2-cycle engine lubricant in a clean container
approved for gasoline. DO NOT mix quantities larger than
usable in a 30-day period.
Recommended fuel: This engine is certied to operate on
unleaded gasoline intended for automotive use.
Note: We recommend you use high-quality synthetic
2-cycle lubricant in this product. Mix at 2.6 oz. per gallon
(US).
Do not use automotive lubricant or 2-cycle outboard
lubricant.
NOTICE:
The spark arrestor on this product has not been
evaluated by the USDA Forest Service and cannot be used on U.S. forest lands. In addition,
product users must comply with Federal, State,
and local re prevention regulations. Check with
appropriate authorities. Contact customer service
or a qualifed service center to purchase a replacement spark arrestor.
NOTICE:
Before each use, inspect the entire product for
damaged, missing, or loose parts such as screws,
nuts, bolts, caps, etc. Tighten securely all fasteners and caps and do not operate this product until
all missing or damaged parts are replaced. Please
contact customer service or a qualied service
center for assistance.
Applications
Use this product for the following applications:
■ Cutting grass, weeds, and light undergrowth
■ Edging along sidewalks and driveways
HIGH QUALITY 2-CYCLE ENGINE LUBRICANT
GASOLINE LUBRICANT
1.0 gal. (US) (3.8 liter) 2.6 oz. (76 ml)
2.5 gal. (US) (9.5 liter) 6.4 oz. (189 ml)
Filling Tank
1. Clean surface around fuel cap to prevent contamination.
2. Loosen fuel cap slowly by turning counterclockwise. Rest
the cap on a clean surface.
3. Carefully pour fuel mixture into the tank. Avoid spillage.
4. Prior to replacing the fuel cap, clean and inspect the gasket.
5. Immediately replace fuel cap and hand tighten by turning
clockwise. Wipe up any fuel spillage.
6. Move at least 30 ft. (9 m) away from refueling area before
starting the product.
Note: It is normal for smoke to be emitted from a new
engine after rst use.
12
Operation
WARNING:
Always shut o engine before fueling. Never
remove fuel cap or add fuel to a machine with
a running or hot engine. Make sure the unit is
sitting on a at, level surface and only add fuel
outdoors. If the engine is hot, let the unit cool
for at least ve minutes before adding fuel.
After fueling, immediately replace fuel cap and
tighten securely. Move at least 30 ft. from refu-
eling site before starting engine. Do not smoke
and stay away from open ames and sparks!
Failure to follow these instructions could result
in a re and cause serious personal injury.
Ethanol-Blended Fuels
NOTICE:
Do not use E15, E20, or E85 fuel in this
product. It is a violation of federal law and
will damage the unit and void your warranty.
Only use unleaded gasoline containing up to
10% ethanol.
Starting the Product
See Figures 4 - 5.
Starting the product diers depending on whether the engine
is cold or warm. Refer to the label on the air lter cover.
To Start a Cold Engine:
Follow these steps to start a cold engine.
1. Lay the product on a at, bare surface.
2. Push the primer bulb approximately eight times.
3. Set the choke lever to FULL CHOKE.
4. Depress trigger lock-out and squeeze throttle trigger
fully (thru step 7) and pull starter grip and rope sharply
until engine attempts to start (no more than 4x).
Set Choke to FULL
5. Set the choke lever to HALF CHOKE.
6. Pull starter grip and rope until engine runs, no more
than 6 pulls.
7. Set the choke lever to RUN.
Note: In cooler environments, additional pulls of the
starter grip and rope may be required with the choke
lever in the FULL CHOKE position.
To Start a Warm Engine:
Follow these steps to start a warm engine.
1. Lay the product on a at, bare surface.
2. Push the primer bulb up to eight times.
3. Set the choke lever to RUN.
4. Depress trigger lock-out and squeeze throttle trigger
fully, pull the starter grip and rope.
Note: If the product does not start, repeat the previous
steps.
Set Choke to RUN
Figure 5
On/Stop
Switch
Throttle
Trigger
Operation
Lock-out
Switch
Primer
Bulb
Starter
Grip and
Rope
Figure 4
13
Stopping the Product
See Figure 6.
Follow these steps to stop the product.
1. Release the trigger.
2. Press and hold on/stop switch to STOP ( ) position
until the engine stops. The switch will automatically
return to the ON ( l ) position when released.
On/Stop
Switch
WARNING:
To avoid burns from hot surfaces, never operate
unit with the bottom of the engine above waist
level.
Follow these steps to operate the straight shaft trimmer.
1. Start the trimmer.
2. Hold the trimmer at waist level with your right hand
on the throttle trigger and your left hand on the front
handle.
3. Place the product on the right side of your body with
the engine behind and away from your body.
4. Trim grass and weeds in a left-to-right motion with the
line parallel to the ground.
WARNING:
Always hold the string trimmer away from the
body keeping clearance between the body and
the product. Any contact with the housing or
string trimmer cutting head can result in burns
and/or other serious personal injury.
Throttle
Trigger
Figure 6
Operating the Trimmer
See Figure 7.
WARNING:
Engine housing may become hot during
trimmer operation. Do not rest or place your
arm, hand, or any body part against the engine
housing during trimmer operation. Only hold
the trimmer as shown in Figure 7 with all body
parts clear of engine housing. Extended contact
with the engine housing can result in burns or
other injuries.
WARNING:
Always position the unit on the operator’s right
side. The use of the unit on the operator’s left
side will expose the user to hot surfaces and can
result in possible burn injury.
PROPER OPERATING
POSITION
Figure 7
14
Operation
To Advance the Cutting Line
See Figure 8.
Line advance is controlled by tapping the string head on
grass while running engine at full throttle.
1. Run engine at full throttle.
2. Tap the knob on ground to advance line. The line advances
each time the knob is tapped. Do not hold the knob on the
ground.
Note: The line trimming cut-o blade on the grass deector
will cut the line to the correct length.
Note: If the line is worn too short you may not be able to
advance the line by tapping it on the ground. If so, stop the
engine and manually advance the line.
To advance the cutting line manually:
1.Stop the engine and disconnect the spark plug wire.
2. Push the knob in while pulling on line(s) to manually
advance the line.
Cutting Tips
See Figures 7 and 9.
1. Avoid hot surfaces by always keeping the tool away
from your body. (Proper operating position is shown in
gure 7.)
2. Keep the trimmer tilted toward the area being cut; this
is the best cutting area.
3. The trimmer cuts when passing the unit from left to
right. This will avoid throwing debris at the operator.
Avoid cutting in the dangerous area shown in gure 9.
4. Use the tip of string to do the cutting; do not force
string head into uncut grass.
5. Wire and picket fences cause extra string wear, even
breakage. Stone and brick walls, curbs and wood may
wear string rapidly.
6. Avoid trees and shrubs. Tree bark, wood moldings, sid-
ing and fence posts can easily be damaged by the string.
Dangerous
Cutting Area
Retaining
Cap
Figure 8
Direction of
Rotation
Best Cutting
Area
Figure 9
Operation
15
Installing Line in REEL-EASY™ String
Head
See Figures 10 - 11.
Use .095 in./2.4 mm diameter monolament line.
1.Stop the engine and disconnect the spark plug wire.
2.Cut one piece of line approximately 25 ft. (7.6 m) in
length.
3.Rotate knob on string head until line on knob aligns
with arrows on top of string head.
4.Insert one end of line into eyelet located on either side
of the string head and push until line comes out through
eyelet on the other side. Continue to push line through
the string head until the middle section of the line is
inside the string head and line outside the string head is
evenly divided on each side.
5.While holding the string head in one hand with your
other hand, rotate the knob on the string head clockwise
to wind the line. Wind the line until approximately 8 in.
(203,2 mm) remains protruding from the string head.
Line
Arrows
Figure 10
Rotate
Clockwise
Maintenance
Normal maintenance, replacement or repair of emission con-
trol devices and systems may be performed by any qualied
repair establishment or individual with original or equivalent parts. Warranty and recall repairs must be performed
by an authorized service center; please contact customer
service for assistance.
WARNING:
Before inspecting, cleaning, or servicing the
machine, shut o engine, wait for all moving
parts to stop, and disconnect spark plug wire
and move it away from spark plug. Failure to
follow these instructions can result in serious
personal injury or property damage.
WARNING:
Always wear eye protection with side shields
marked to comply with ANSI Z87.1, along with
hearing protection. Failure to do so could result
in objects being thrown into your eyes and other
possible serious injuries.
Eyelet
Figure 11
WARNING:
When servicing, use only recommended or
equivalent replacement parts. Use of any other
parts could result in a personal injury hazard or
property damage..
NOTICE:
Periodically inspect the entire product for damaged, missing, or loose parts such as screws,
nuts, bolts, caps, etc. Tighten securely all fasteners and caps and do not operate this product
until all missing or damaged parts are replaced.
Please contact customer service or a qualied
service center for assistance.
16
Operation / Maintenance
General Maintenance
Avoid using solvents when cleaning plastic parts. Most
plastics are susceptible to damage from various types of
commercial solvents and may be damaged by their use. Use
clean cloths to remove dirt, dust, lubricant, grease, etc.
WARNING:
Do not at any time let brake uids, gasoline,
petroleum-based products, penetrating lubricants,
etc., come in contact with plastic parts. Chemicals can damage, weaken or destroy plastic which
could result in serious personal injury.
Cleaning the Product
1.Stop the product before cleaning.
2.Clean the exterior of the product with a damp cloth.
3.Avoid using solvents when cleaning plastic parts. Most
plastics are susceptible to damage from various types of
commercial solvents and may be damaged by their use.
4.Wipe or scrape the trimmer head and spool area when
they accumulate dirt or clippings.
5.Scrape debris away from air intake vents on both sides
of engine housing.
NOTICE:
Keeping air intake vents free of grass and debris
prevents engine overheating and possible engine
damage.
The fuel cap contains a non-serviceable lter and check
valve. A clogged fuel lter causes poor engine performance.
If performance improves when the fuel cap is loosened,
the check valve may be faulty or the lter may be clogged.
Replace the fuel cap if necessary.
Cleaning the Air Filter
See Figure 12.
Clean the air lter as indicated by the maintenance schedule.
Follow these steps to clean the air lter.
1. Stop the trimmer.
2. Remove the spark plug boot.
3. Loosen the air lter cover by turning the knob counter-
clockwise.
4. Remove the air lter cover.
5. Remove the air lter.
6. Clean the air lter with warm soapy water.
7. Rinse the air lter and let it dry completely.
8. Work two drops of oil into the air lter.
9. Replace the air lter (ts only one way).
10. Replace the air lter cover.
11. Tighten the air lter cover by turning the knob clock-
wise.
12. Replace the spark plug boot.
Note: Replace the air lter as indicated by the mainte-
nance schedule.
Air Filter
Servicing the Product
Check and tighten all fasteners. If any part is damaged or
lost, repair it or replace it.
Checking the Fuel Cap, Tank, and Lines
WARNING:
Check for fuel leaks. A leaking fuel cap, tank,
or line is a re hazard and must be replaced
immediately. If you nd any leaks, correct the
problem before using the product. Failure to do
so could result in a re that could cause serious
personal injury.
Air Filter
Knob
Cover
Figure 12
Maintenance
17
Replacing the Spark Arrestor
See Figure 13.
WARNING:
Stop engine, remove spark plug boot, and allow
engine and muer to cool before replacing
the spark arrestor. Contact with a hot muer
or engine could cause burns or other serious
personal injuries.
NOTICE:
The spark arrestor on this product has not been
evaluated by the USDA Forest Service and
cannot be used on U.S. forest lands. In addition,
product users must comply with Federal, State,
and local re prevention regulations. Check
with appropriate authorities. Contact customer
service or a qualied service center to purchase
a replacement spark arrestor.
Note: Depending on the type of fuel used, the type and
amount of lubricant used, and/or your operating conditions,
the exhaust port, muer, and/or spark arrestor screen may
become blocked with carbon deposits. If you notice a power
loss with your gas powered tool, you may need to remove
these deposits to restore performance. We highly recom-
mend that only qualied service technicians perform this
service.
The spark arrestor may need to be cleaned or replaced after
repeated use. If replacement is necessary, use Toro part
number 000998216.
To replace the spark arrestor:
1. Remove the ve screws that hold the cover.
Note: Removing these screws requires the use of a T20
and T25 torx screwdriver.
2. Remove the cover.
Cover
Screw(s)
3. Remove the two screws holding the muer assembly in
place.
4. Remove the muer assembly and muer gasket. It
may be necessary to work the muer assembly free
from the muer gasket.
5. Separate the muer cover from the muer.
6. Remove the three screws that hold the plates on the
muer.
7. Remove the spark arrestor.
8. Replace the old spark arrestor with the new one.
9. Reassemble the muer by reinstalling the plates and
tightening the three screws (torque to 7 in.lb
(0.79 Nm) minimum, 13 in.lb. (1.46 Nm) maximum).
10. Reassemble the muer and muer cover and attach to
the muer gasket with the two screws.
11. Reinsert the muer assembly and tighten two screws to
engine (torque to 60 in.lb (6.78 Nm) minimum, 80 in.lb.
(9.04 Nm) maximum).
12. Reinstall the cover on the tool and fasten with the ve
screws (torque to 16 in.lb (1.81 Nm) minimum,
22 in.lb. (2.49 Nm) maximum).
Note: Do not over-tighten screws.
Replacing the Spark Plug
See Figure 14.
All item numbers included in this manual use a Champion
RCJ4, RCJ6Y or equivalent spark plug. Use only a recommended or equivalent replacement and replace annually.
1. Remove the spark plug boot.
2. Loosen the spark plug by turning it counterclockwise
with a socket.
3. Remove the spark plug.
4. Inspect the new spark plug. The spark plug must be
properly gapped and free of deposits in order to ensure
proper engine operation. The correct gap is approximately 0.025 in. (0.64 mm). To widen gap, if necessary,
carefully bend the ground (top) electrode. To lessen
gap, gently tap ground electrode on a hard surface.
5. Hand thread the new spark plug, turning it clockwise.
Muffler
Gasket
18
Muffler
Plate
Spark
Arrestor
Screw(s)
Muffler
Cover
Screw(s)
Figure 13
Spark Plug Boot
Spark
Plug
Figure 14
Maintenance
6. Tighten with a socket [torque to 177 in.lb. (20 Nm)
minimum, 221 in.lb. (24.97 Nm) maximum]. Do not
over-tighten.
NOTICE:
Be careful not to cross-thread the spark plug.
Cross-threading will seriously damage the
product.
Idle Speed Adjustment
See Figure 15.
WARNING:
The cutting head will move when adjusting the
idle speed. Wear all protective clothing and keep
all bystanders, children, and pets at least 50 ft.
(15 m) away. Make adjustments with the unit
supported by hand so that the cutting head does
not contact the ground or any object. Keep all
parts of your body away from the cutting head
and muer. Failure to follow these instructions
could result in serious personal injury.
If the cutting attachment turns at idle, the idle speed screw
needs adjusting on the engine. Turn the idle speed screw
counterclockwise to reduce the idle RPM and stop the cutting attachment movement. If the cutting attachment still
moves at idle speed, contact a service dealer for adjustment
and discontinue use until the repair is made.
WARNING:
The cutting attachment should never turn at idle.
Turn the idle speed screw counterclockwise
to reduce the idle RPM and stop the cutting
attachment, or contact a service dealer for
adjustment and discontinue use until the repair
is made. Serious personal injury could result
from the cutting attachment turning at idle.
Idle Speed
Screw
Figure 15
Storing the Product
Storing the product diers depending on the amount of time
it will be in storage.
Note: If the product includes another attachment, place the
storage cap on the end of the attachment shaft and hang it up
to store.
To Store the Product Short Term:
Follow these steps to store the product short term.
1. Clean all foreign material from the product.
2. Store the product in a well-ventilated place that is inac-
cessible to children.
To Store the Product Long Term:
If you do not intend to use the product for more than one
month, follow the storage procedures below.
Follow these steps to store the product long term.
1. Drain all of the fuel from the tank into a container ap-
proved for gasoline.
2. Run the engine until it stops.
3. Clean all foreign material from the product.
4. Store the product in a well-ventilated place that is inac-
cessible to children.
Note: Keep the product away from corrosive agents
such as garden chemicals and de-icing salts.
Note: Abide by all federal and local regulations for the
safe storage and handling of gasoline.
Maintenance
Transporting the Product
Follow these steps to transport the product.
1. Drain the fuel mixture into a container that is approved
for use with gasoline.
2. Carry the product by the front handle.
3. Secure the product in your vehicle or on a trailer.
19
Installing REEL-EASY™ String Head
See Figures 16 - 17.
Stop the engine and disconnect the spark plug wire.
Open the REEL EASY™ string head by depressing the
latches on each side. The contents of the string head are
spring loaded, so keep your other hand over the string
head cover while depressing the latches.
Remove the string head cover, knob, and spool and set
aside.
Place the upper housing on the drive shaft. Make sure
the string head is fully seated.
Install the hex bolt into the opening on the drive shaft
and secure using the hex-shaped opening in the knob to
tighten. Turn counterclockwise to tighten.
Note: Only use the knob to tighten the bolt. The use of
other tools may allow overtightening of the bolt, which
could damage the string head.
If removed, replace the spring into the string head and
push down to seat.
Reinstall the spool. The spool should be placed so “This
side out for straight shaft” is visible.
Replace the knob in the spool.
Replace the string head cover, aligning latches with
openings in the string head. Press cover and string head
together until both latches snap into openings securely.
Install line as described in the operation section of this
manual.
Straight Shaft
Cover
Latches
Knob
Spool
Spring
Hex Bolt
String Head
Latch
Opening
Figure 16
Hex-Shaped
Opening
Knob
Hex Bolt
Figure 17
20
Maintenance
High Altitude Engine Operation
866-574-9243 (Canada)
Your engine is congured for operation below 2000 feet altitude at the factory. Your engine must be recongured for operation above 2000 feet altitude. Operating the engine with the wrong engine conguration at a given
altitude may increase its emissions, decrease fuel eciency, degrade performance and cause irreversible damage.
Engines congured for high altitude operation cannot be operated in standard altitude conditions. A qualied service center should ensure that your engine is properly congured for your location.
This Product Was Manufactured With a Catalyst Muffler
Congratulations! You have made an investment toward protecting the environment. In order to maintain this product’s origi-
nal emission level, please refer to the maintenance section below.
MAINTENANCE SCHEDULE
Inspect For Clean Clean or Replace Replace
Maintenance Damage Before Every Every 25 Hours Every
Part Each Use 5 Hours or Yearly 125 Hours
* CATALYTIC MUFFLER ASSEMBLY ................................................................................................................. X
SPARK SCREEN .......................................................................................................... X
* AIR FILTER ASSY
includes:
Filter .......................................................................................X
* CARBURETOR ASSY
includes:
Gaskets .......................................... X
* FUEL TANK ASSY
includes:
Fuel Lines ...................................... X
Fuel Cap ........................................ X
Fuel Filter ...................................................................................................................... X
* IGNITION ASSY
includes:
Spark Plug ..................................................................................................................... X
*NOTICE: THE USE OF EMISSION CONTROL COMPONENTS OTHER THAN THOSE DESIGNED FOR THIS
UNIT IS A VIOLATION OF FEDERAL LAW.
CALL
866-574-9242 (US) or
Maintenance
CALL US FIRST
For any questions about operating or maintaining your product,
call the Toro® Help Line!
Your product has been fully tested prior to shipment to ensure
your complete satisfaction.
21
Troubleshooting
Problem Possible Cause Solution
Engine will not start 1. No spark
2. No fuel
3. Flooded engine
4. Starter grip and rope pulls harder
now then when new
Engine does not reach full speed
and emits excessive smoke
Line will not advance when using automatic line lengthening
Grass wraps around the trimmer
head assembly and the attachment shaft
Oil drips from muer 1. Operating the product at part
1. Check oil fuel mixture
2. Air lter is dirty
3. Spark arrestor screen is dirty
1. Line welded to itself
2. Not enough line on the spool
3. Line worn too short
4. Line tangled on spool
5. Engine speed too slow
1. Cutting tall grass at ground level
2. Operating the product at part
throttle
throttle
2. Check oil/fuel mixture
3. Air lter is dirty
1. Remove the spark plug. Reattach the spark
plug cap and lay the spark plug on the metal
cylinder. Pull the starter grip and rope and
watch for a spark at the spark plug tip. If
there is no spark, repeat the test with a new
spark plug.
2. Push primer bulb until the bulb is full of
fuel. If the bulb does not ll, the primary
fuel delivery system is blocked. If the primer
bulb lls, the engine may be ooded. (See
next item.)
3. Remove the spark plug. Turn the product
so that the spark plug hole is aimed at the
ground. Make sure the choke lever is set to
RUN and pull the starter grip and rope 10
to 14 times. This clears excess fuel from the
engine. Clean and reinstall the spark plug.
With the trigger fully depressed, pull the
starter grip and rope 3 times. If the engine
does not start, set the choke lever to FULL
and follow normal starting instructions. If
the engine still fails to start, repeat the procedure with a new spark plug.
4. Contact a qualied service dealer.
1. Use fresh fuel and the correct 2-cycle oil
mix.
2. Clean the air lter.
3. Clean the spark arrestor.
1. Lubricate with silicone spray.
2. Install more line.
3. Pull line while alternately pressing down on
and releasing the retaining cap.
4. Remove line from spool and rewind.
5. Advance line at full throttle.
1. Cut tall grass from the top down.
2. Operate the product at full throttle.
1. Operate the product at full throttle.
2. Use fresh fuel and the correct 2-cycle oil
mix.
3. Clean the air lter.
If problem persists after trying the above solutions, contact customer service or a qualied service center for assistance.
NOTICE:
As the equipment owner, you are responsible for the performance of the required maintenance listed in the Maintenance
section. It is recommended that you retain all receipts covering maintenance on your equipment. Neglecting or failing to
perform the required maintenance may increase emissions, decrease fuel eciency, degrade performance, cause irreversible engine damage and/or void your warranty.
22
Troubleshooting
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