OPERATOR'S MANUAL
String Trimmer
PLT3043S
Your new trimmer has been engineered and manufactured to Ryobi’s high standard for dependability, ease of operation, and operator
safety. Properly cared for, it will give you years of rugged, trouble-free performance.
WARNING: To reduce the risk of injury, the user must read and understand the operator’s manual before
using this product.
Thank you for buying a Ryobi trimmer.
SAVETHIS MANUAL FOR FUTURE REFERENCE
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SAFETY
■ Secure long hair so it is above shoulder level to prevent
b) After each period of operation, exercise to increase
bloodcirculation.
entanglement in any moving parts.
■ Keep all bystanders, children, and pets at least 15 m
c) Take frequent work breaks. Limit the amount of
exposure per day.
(50 ft.) away.
■ Do not operate this unit when you are tired, ill, or under
d) Keep the tool well maintained, fasteners tightened
andwornpartsreplaced.
the influence of alcohol, drugs, or medication.
■ Do not operate in poor lighting.
If you experience any of the symptoms of this condition,
immediately discontinue use and see your physician
about these symptoms.
■ Keep firm footing and balance. Do not overreach.
Overreaching can result in loss of balance or exposure
to hot surfaces.
■ Mix and store fuel in a container approved for gasoline.
■ Keep all parts of your body away from any moving part.
■ Mix fuel outdoors where there are no sparks or flames.
Wipe up any fuel spillage. Move 9 m (30 ft. ) away from
refueling site before starting engine.
■ Do not touch areas around the muffler or cylinder of the
trimmer, these parts get hot from operation.
■ Stop the engine and allow to cool before refueling or
■ Always stop the engine and remove the spark plug wire
before making any adjustments or repairs except for
carburetoradjustments.
storing the unit.
■ Allow the engine to cool; empty the fuel tank and secure
the unit from moving before transporting in a vehicle.
■ Inspect the unit before each use for loose fasteners,
fuel leaks, etc. Replace any damaged parts before use.
SPECIFIC SAFETY RULES FOR TRIMMER USE
■ The string head will rotate during carburetor adjust-
■ Replace string head if cracked, chipped, or damaged in
any way. Be sure the string head is properly installed
and securely fastened. Failure to do so can cause
serious injury.
ments.
■ It has been reported that vibrations from hand-held tools
may contribute to a condition called Raynaud’s Syn-
drome in certain individuals. Symptoms may include
tingling, numbness and blanching of the fingers, usually
apparent upon exposure to cold. Hereditary factors,
exposure to cold and dampness, diet, smoking and work
practices are all thought to contribute to the develop-
ment 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 effects of vibra-
tion:
■ Make sure all guards, straps, deflectors and handles are
properly and securely attached.
■ Use only the manufacturer's replacement string in the
cutting head. Do not use any other cutting attachment.
■ Never operate unit without the grass deflector in place
and in good condition.
■ Maintain a firm grip on both handles while trimming.
Keep string head below waist level. Never cut with the
string head located over 76 cm (30 in.) or more above
theground.
a) Keep your body warm in cold weather. When operat-
ing the unit wear gloves to keep the hands and wrists
warm. It is reported that cold weather is a major
factor contributing to Raynaud’s Syndrome.
■ The cutting attachment should stop turning when the
engine idles because it is equipped with a clutch. If the
cutting attachment continues to turn when the engine
idles, contact a service dealer for repair.
3
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SYMBOLS
Important: Some of the following symbols may be used on your tool. Please study them and learn their meaning. Proper
interpretation of these symbols will allow you to operate the tool better and safer.
SYMBOL
NAME
EXPLANATION
Safety Alert Symbol
Indicates danger, warning or caution. It means
attention!!! Your safety is involved.
ReadYourOperator’sManual
Your manual contains special messages to bring
attention to potential safety concerns as well as
operating and servicing information. Please read all
the information carefully to assure satisfaction and
safe use.
Weareyeandhearingprotection.
Wear eye and hearing protection when operating this
equipment.
Keep bystanders away.
Ricochet.
Keep all bystanders at least (15 m) 50 feet away.
Danger of Ricochet.
Noblade.
Do not install any type of blade on this unit.
RPM Decal
Boots
Rotational direction and maximum speed of the shaft
for the cutting attachment.
9,000
-1
min
Wear non-slip safety footwear when using this
equipment.
Gloves
Wear non-slip, heavy-duty gloves.
NoSmoking
Do not smoke when mixing fuel or filling fuel tank.
Gasoline
Use unleaded gasoline intended for automotive use
with an octane rating of 87 ([R + M] / 2) or higher.
Oil
Use 2-cycle oil for air cooled engines.
Mix Gasoline and Oil
Switch
Mix the fuel mix thoroughly and also each time before
fueling.
On/Off Switch
I = ON to Run
O = OFF to Stop
4
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SYMBOLS
The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols, and the explanations
with them, deserve your careful attention and understanding. The safety warnings do not by themselves eliminate any
danger. The instructions or warnings they give are not substitutes for proper accident prevention measures.
SYMBOL
MEANING
DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury. It may also be used to alert against unsafe practices that may cause property damage.
NOTE:
Advises you of information or instructions vital to the operation or maintenance of the equipment.
SAVE THESE INSTRUCTIONS
TECHNICAL DATA
Weight
Without fuel and string head ................................................................................................................4.07 Kg
Without fuel, w/string head ..................................................................................................................5.09 Kg
Fuel tank volume ................................................................................................................................................... 42.5 cm3
Cutting swath .......................................................................................................................................................... 432 mm
Enginedisplacement ................................................................................................................................................ 30 cm3
Maximum engine performance (in accordance with ISO 8893) ............................................................................... 0.78 kW
Maximum rotational frequency of the spindle ..................................................................................................... 9000 min-1
Engine Speed (rotational frequency) at recommended max. spindle rotational frequency ..................................12500min-1
Engine speed (rotational frequency) at idle ............................................................................................... 2800 - 3200 min-1
Fuel consumption (in accordance with ISO 8893) at max. engine performance ................................................... 0.52 kg/h
Specific fuel consumption (in accordance with ISO 8893) at max. engine performance ...................................... 0.47 kg/h
Vibration level idling -
FrontHandle ................................................................................................................. 3.7 m/s2
RearHandle .................................................................................................................. 2.7 m/s2
FrontHandle ............................................................................................................... 11.0 m/s2
RearHandle .................................................................................................................. 8.1 m/s2
Vibration level racing
Sound pressure level (in accordance with EN ISO 11806:1997, ISO 7917:1987) ......................................... 101 LpA (dBA)
Sound power level (in accordance with ISO 10884) ................................................................................... 108 LwA (dBpA)
5
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UNPACKING
INSTRUCTIONS
PACKING LIST FOR OWNER'S KIT
■ Carefully remove the product from the carton.
■ Grass deflector
■ Inspect the product to make sure no breakage or
■ Fronthandle
damageoccurredduringshipping.
■ Muffler guard, torx wrench and screws
■ Hardware
■ Do not discard the packing material until you have
inspected and operated the product.
■ Operator'smanual
FEATURES
ENGINE HOUSING
THROTTLE
INTERLOCK
IGNITION
SWITCH
FRONT HANDLE
STARTER GRIP
THROTTLE TRIGGER
COUPLER
SHAFT
KNOB
GRASS DEFLECTOR
CUTTING
LINE
Fig. 1
6
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ASSEMBLY
ATTACHING THE POWER HEAD TO THE
TRIMMER ATTACHMENT
See Figure 2.
STRING TRIMMER
SHAFT
COUPLER
WARNING:
Never attach or adjust any attachment while power head is
running. Failure to stop the engine can cause serious
personal injury.
GUIDE
RECESS
The trimmer attachment connects to the power head by
means of a coupler device.
1. Loosen the knob on the coupler of the power head shaft
and remove the end cap from the attachment.
KNOB
POSITIONING
HOLE
2. Push in the button located on the trimmer attachment
shaft. Align the button with the guide recess on the
power head coupler and slide the two shafts together.
Rotate the trimmer attachment shaft until the button
locks into the positioning hole.
TRIMMER ATTACHMENT
Fig. 2
NOTE: If the button does not release completely in the
positioning hole, the shafts are not locked into place.
Slightlyrotatefromsidetosideuntilthebuttonislockedinto
place.
3. Tighten the knob securely.
HANGER CAP
WARNING:
Be certain the knob is fully tightened before operating
equipment; check it periodically for tightness during use
to avoid serious injury.
HOLE
REMOVING THE ATTACHMENT FROM THE
POWER HEAD
For removing or changing the attachment:
1. Loosen the knob.
2. Push in the button and twist the shafts to remove and
separateends.
BUTTON
ATTACHING THE STORAGE HANGER
See Figure 3.
There are two ways to hang your attachment for storage.
Fig. 3
■ To use the hanger cap, push in the button and place the
hanger cap over end of the lower end attachment shaft.
Slightly rotate the cap from side to side until the button
locks into place.
■ The secondary hole in the attachment shaft can be used
for hanging purposes as well.
7
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ASSEMBLY
ASSEMBLY INSTRUCTIONS:
HANDLE BASE
SCREWS
GRASS DEFLECTOR
See Figure 4.
1. Remove wing nut, flat washer, lock washer, and bolt
from the Owner’s Kit.
HANDLE
BASE
2. Place grass deflector over shaft and bracket.
3. Install bolt through the slots in the tabs on grass
deflector and bracket on driveshaft housing.
4. Install flat washer, lock washer and wing nut.
5. TightenSecurely.
BRACKET
BOLT
GRASS
DEFLECTOR
NUTS
BRACKET
LOCK WASHER
SPACER
FLAT
WASHER
WING NUT
Fig. 4
FRONT HANDLE
See Figure 5.
1. Place the handle base and the bracket on the driveshaft
housing below the spacer.
HANDLE GRIP
2. Install the two handle base screws and nuts, but do not
tighten completely.
3. Place the handle grip onto the handle base and install the
two screws.Tighten securely.
4. Adjust the position of the handle for best balance and
comfort.
5. Tighten the two handle base screws securely.
NOTE: Do not attempt to remove or modify the spacer.This
spacer limits the upper position of the handle grip. See
Figure 5.
SCREWS
Fig. 5
8
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ASSEMBLY
MUFFLER GUARD ASSEMBLY
See Figure 6.
REAR HOUSING
1. Remove muffler guard and two screws from the owner's
kit.
TORX
WRENCH
2. Attach the muffler guard to the rear housing.
NOTE: Make sure the bent end of the muffler guard fits
securely into the opening of the rear housing.
3. Using the torx wrench supplied, install the two screws
and tighten securely.
SCREWS
MUFFLER
GUARD
BENT END OF
MUFFLER GUARD
OPENING IN REAR
HOUSING
Fig. 6
9
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OPERATION
FUEL AND REFUELING
WARNING
HANDLING THE FUEL SAFELY
Always shut off engine before fueling. Never add fuel
to a machine with a running or hot engine. Move at
least 9 m (30 ft.) from refueling site before starting
engine. Do not smoke!
■ Always handle fuel with care, it is highly flammable.
■ Always refuel outdoors where there are no sparks and
flames. Do not inhale fuel vapors.
■ Do not let gasoline or oil come in contact with your skin.
■ Keep gasoline and oil away from the eyes. If gasoline or
oil comes in contact with the eyes, wash them immedi-
ately with clean water. If irritation is still present, see a
doctorimmediately.
■ Clean up spilled fuel immediately.
1 Litre
+
+
+
+
+
20 ml
40 ml
60 ml
80 ml
100 ml
=
=
=
=
=
MIXING THE FUEL
2 Litres
3 Litres
4 Litres
5 Litres
■ This product is powered by a 2-cycle engine and requires
pre-mixing gasoline and 2-cycle oil. Pre-mix unleaded
gasoline and 2-cycle engine oil in a clean container
approvedforgasoline.
50:1
}
■ This engine is certified to operate on unleaded gasoline
intended for automotive use with an octane rating of 87
([R + M] / 2) or higher.
OPERATING THE TRIMMER
See Figure 7.
Hold the trimmer with the right hand on the rear handle and
the left hand on the front handle. Keep a firm grip with both
hands while in operation.Trimmer should be held at a
comfortable position with the rear handle about hip height.
■ Do not use any type of pre-mixed gasoline/oil from fuel
service stations, this includes the pre-mixed gasoline/oil
intended for use in mopeds, motorcycles, etc.
■ Use high a quality 2-cycle self mixing oil for air cooled
Always operate trimmer at full throttle. Cut tall grass from
the top down.This will prevent grass from wrapping around
the driveshaft housing and string head which may cause
damage from overheating. If grass becomes wrapped
around the string head, stop the engine, disconnect the
spark plug wire, and remove the grass. Prolonged cutting at
partial throttle will result in oil dripping from the muffler.
engines. Do not use automotive oil or 2-cycle outboard
oil.
■ Mix 2% oil into the gasoline. This is a 50:1 ratio.
■ Mix the fuel thoroughly and also each time before
fueling.
■ Mix in small quantities. Do not mix quantities larger than
usable in a 30 day period. A 2-cycle oil containing a fuel
stabilizer is recommended.
FILLING THE TANK
1. Clean surface around fuel cap to prevent contamination.
2. Loosen fuel cap slowly to release pressure and to keep
fuel from escaping around the cap.
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. Wipe up
any fuel spillage. Move 9 m (30 ft.) away from refueling
site before starting engine.
NOTE: It is normal for smoke to be emitted from a new
engine during and after first use.
Fig. 7
10
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OPERATION
ADVANCING THE STRING
GRASS DEFLECTOR LINE TRIMMING CUT-
OFF BLADE
See Figure 9.
ADVANCING STRING USING THE EZ LINE™ TAP
ADVANCE SYSTEM
This trimmer is equipped with a line trimming cut-off blade
on the grass deflector. For best cutting, advance string until
it is trimmed to length by the cut-off blade. Advance string
whenever you hear the engine running faster than normal.
This will maintain best performance and keep string long
enough to advance properly.
String advance is controlled by tapping string head on grass
while running engine at full throttle.
1. Run engine at full throttle.
2. Tap string head on ground to advance string. String
advances each time the head is tapped.
3. Several taps may be required until string strikes the cut
off blade.
4. Resumetrimming.
NOTE: If the string is worn too short you may not be able to
advance the string by tapping it on the ground. If so, STOP
THE ENGINE, and manually advance the string.
ADVANCING THE STRING MANUALLY
Push the spool retainer down while pulling on string(s) to
manually advance the string.
CUTTING TIPS
See Figure 8.
■ Keep the trimmer tilted toward the area being cut; this is
the best cutting area.
Fig. 9
■ Do not cut in dangerous cutting area.
■ Use the tip of string to do the cutting; do not force string
head into uncut grass.
■ Wire and picket fences cause extra string wear, even
breakage. Stone and brick walls, curbs, and wood may
wear string rapidly.
■ Avoid trees and shrubs. Tree bark, wood moldings,
siding, and fence posts can easily be damaged by the
string.
DANGEROUS
CUTTING AREA
BEST CUTTING
Fig. 8
AREA
11
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OPERATION
STARTING AND STOPPING
See Figures 10 and 11.
IGNITION SWITCH
I = ON TO RUN
O = OFF TO STOP
WARNING:
Never start or run the engine inside a closed or poorly
ventilated area; breathing exhaust fumes can kill.
THROTTLE INTERLOCK
TO START A COLD ENGINE:
1. Lay trimmer on a flat, bare surface. Move switch to “I”
(RUN)position.
NOTE: Unit is equipped with a positive on-off switch,
make sure switch is in the “I” (RUN) position before
starting the unit.
2. Push primer bulb 8 to 10 times.
3. Set choke lever to choke position (
).
THROTTLE
TRIGGER
4. Depress interlock, squeeze trigger and pull starter rope
until engine tries to run. (No more than 6 pulls.)
Fig. 10
5. Set choke lever to half choke position (
).
6. Hold trigger and pull starter rope until engine runs.
7. Run engine 30 to 45 seconds at full throttle (with trigger
CHOKE LEVER
depressed fully) on half choke position (
up. Move choke lever to run position ( ).
) to warm
PRIMER BULB
RUN POSITION
TO START A WARM ENGINE:
1. Move choke lever to run position ( ).
2. Hold trigger and pull starter rope until engine runs.
TO STOP THE ENGINE:
HALF
CHOKE
POSITION
To stop the engine, depress the switch to “O” position.
1
NOTE: Be sure to return the stop switch to the “I” (RUN)
position before trying to start unit.
CHOKE
POSITION
Fig. 11
12
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MAINTENANCE
6. Make sure the string head and the spool retainer are
installed on the drive shaft by turning the retainer
clockwise to tighten.
WARNING:
Use only original manufacturer's replacement parts,
accessories and attachments. Failure to do so can
cause possible injury, poor performance and may
void your warranty.
7. Pull the strings again to rotate the spool into cutting
position. Push the spool retainer down while pulling on
string(s) to manually advance the string and to check for
proper assembly of the string head.
■ You may make adjustments and repairs described here.
For other repairs, have the trimmer serviced by an
authorizedservicedealer.
■ Consequencesofimpropermaintenancemayinclude
excess carbon deposits resulting in loss of performance
and discharge of black oily residue dripping from the
muffler.
■ Make sure all guards, straps, deflectors and handles are
properly and securely attached to avoid the risk of
personalinjury.
SPOOL
RETAINER
SPOOL REPLACEMENT
EZ LINE™ TAP ADVANCE SYSTEM
NEW PREWOUND SPOOL
Fig. 12
See Figures 12 and 13.
If replacing string only, refer to “String Replacement” later in
this manual.
SPRING
Use only 2.0 mm (.080 in.) diameter monofilament string.
Use the manufacturer's replacement string for best perfor-
mance.
SPOOL
SLOTS
1. Stop the engine, disconnect the spark plug wire. Hold
the string head and unscrew the spool retainer. Turn
counterclockwise.
2. Remove the empty spool from the string head. Keep the
spring attached to the spool.
STRING HEAD
3. To install the new spool, make sure the two strings are
captured in the slots opposite each other on the new
spool. Make sure the ends of each string is extended
approximately 152 mm (6 in.) beyond each slot.
EYELETS
4. Thread the strings into the eyelets in the string head.
Carefully push the spool into the string head (gently pull
the strings to the outside if necessary). When the spool
is positioned in the string head, grasp the strings and
pull sharply to release them from the slots in the spool.
DRIVESHAFT
EYELETS
Fig. 13
5. Push down and turn the spool counterclockwise until it
no longer turns. Hold the spool down and rotate clock-
wise a small amount. Release the spool. The spool
should be locked down in the string head. If not, hold
down and rotate until locked.
13
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MAINTENANCE
STRING REPLACEMENT
See Figures 14, 15, 16 and 17.
SPOOL
SPRING
1. Stop the engine, disconnect the spark plug wire. Hold
the string head and unscrew the spool retainer. Turn
counterclockwise.
ARROWS ON
SPOOL
2. Remove the spool from the string head. NOTE: Keep
the spring attached to the spool. Remove any old string
remaining on the spool.
ANCHOR
HOLE
3. Cut two pieces of string, each being approximately
2.7 m (9 ft.) long.
4. Insert the first string into the anchor hole in the upper
part of the spool. Wind the first string around the upper
part of the spool counterclockwise, as shown by the
arrows on the spool. Place string in the slot on upper
spool flange, leaving about 152 mm (6 in.) extended
beyond the slot. Do not overfill. After winding the string,
there should be at least 6 mm (1/4 in.) between the
wound string and the outside edge of the spool.
FIRST STRING
Fig. 14
FIRST STRING
SLOT
5. Repeat above step with second string, using the bottom
part of spool. Do not overfill.
6. Replace the spool and the spool retainer. Refer to "Spool
Replacement " earlier in this manual.
CLEANING THE EXHAUST PORT AND
MUFFLER
Depending on the type of fuel used, the type and amount of
oil used, and/or your operating conditions, the exhaust port
and muffler may become blocked with carbon deposits. If
you notice a power loss with your gas powered tool, a
qualified service technician will need to remove these
deposits to restore performance.
Fig. 15
SPARK ARRESTOR
The spark arrestor must be cleaned or replaced every 25
hours or yearly to ensure proper performance of your
product. Spark arrestors may be in different locations
depending on the model purchased. Please contact your
nearest service dealer for the location of the spark arrestor
for your model.
SECOND
STRING
Cleaning Instructions:
■ Remove the spark arrestor from the muffler.
■ If your spark arrestor is made of a fiberglass material,
Fig. 16
discardandreplace.
■ If your spark arrestor is made of a metal material follow
these cleaning instructions:
1. Spray the spark arrestor with a quality carbon
cleaner.
SLOT
ARROWS ON
SPOOL
2. Gently clean using a wire brush.
3. Install the new or cleaned spark arrestor and reas-
semble completely before use.
Fig. 17
14
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MAINTENANCE
REPLACING AND CLEANING AIR FILTER
See Figures 18 and 19.
For proper performance and long life, keep air filter clean.
LATCH
1. Remove the air filter cover by pushing down on the latch
with your thumb while gently pulling on the cover.
2. Remove the filter, clean it in warm soapy water. Rinse
and let dry completely. For best performance, replace
annually.
PULL COVER
TO OPEN
3. Install the filter, align tabs, push in, and make sure the
latches are locked into place.
FUEL CAP
Fig. 18
WARNING:
A leaking fuel cap is a fire hazard and must be
replaced immediately.
FILTER
The fuel cap contains a non-serviceable filter and a check
valve. A clogged fuel filter will cause poor engine perfor-
mance. If performance improves when the fuel cap is
loosened, check valve may be faulty or filter clogged.
Replace fuel cap if required.
SPARK PLUG
This engine uses a Champion RCJ-6Y with 0,63 mm
(.025 in.) electrode gap. Use an exact replacement and
replace annually.
TRANSPORTING
Allow the engine to cool; empty the fuel tank and secure the
unit from moving before transporting.
AIR FILTER
COVER
STORAGE
STORAGE (LESS THAN 1 MONTH)
1. Clean all foreign material from the trimmer. Store it in a
well-ventilated place that is inaccessible to children.
Keep away from corrosive agents such as garden
chemicals and de-icing salts.
2. Abide by all ISO and local regulations for the safe
storage and handling of gasoline. Excess fuel should be
used up in other 2-cycle engine powered equipment.
Fig. 19
STORAGE (1 MONTH OR LONGER)
1. Drain all fuel from tank into a container approved for
gasoline. Run engine until it stops.
2. Clean all foreign material from the trimmer. Store it in a
well-ventilated place that is inaccessible to children.
Keep away from corrosive agents such as garden
chemicals and de-icing salts.
3. Abide by all ISO and local regulations for the safe
storage and handling of gasoline. Excess fuel should be
used up in other 2-cycle engine powered equipment.
15
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TROUBLESHOOTING
IFTHESE SOLUTIONS DO NOT SOLVETHE PROBLEM CONTACTYOUR AUTHORIZED SERVICE DEALER.
PROBLEM
POSSIBLE CAUSE
SOLUTION
Engine will not start:
1. Check spark. Remove spark plug. Reattach
the spark plug cap and lay spark plug on metal
cylinder. Pull the starter rope and watch for
spark at spark plug tip. If there is no spark,
repeat test with a new spark plug.
1. No spark.
2. Push primer bulb until bulb is full of fuel. If
bulb does not fill, primary fuel delivery system
is blocked. Contact a service dealer. If primer
bulb fills, engine may be flooded (see next
item).
2. No fuel.
3. Remove spark plug, turn trimmer so spark plug
hole is aimed at the ground. Move choke lever
to “RUN” and pull starter cord 10 to 15 times.
This will clear excess fuel from engine. Clean
and reinstall spark plug. Pull starter three
times with choke lever at “RUN”. If engine
does not start, move choke lever to “CHOKE”
and repeat normal starting procedure. If engine
still fails to start, repeat procedure with a new
spark plug.
3. Floodedengine.
4. Contact a service dealer.
4. Starter rope pulls harder now than
whennew.
Engine starts but will not
accelerate:
Turn “L” needle counterclockwise 1/16 turn. If
“L” low needle can not be turned counterclock-
wise, do not force plastic limiter caps. Contact a
service dealer. See Figure 20.
Carburetorrequiresadjustment.
Engine starts but will only
run at high speed at half
choke:
Turn “H” needlecounterclockwise 1/16 turn. If
“H” high needle can not be turned counterclock-
wise, do not force plastic limiter caps. Contact a
service dealer. See Figure 20.
Carburetorrequiresadjustment.
Engine does not reach full
speed and emits excessive
smoke:
1. Use fresh fuel and the correct 2-cycle oil mix.
2. Clean the air filter. Refer to “Replacing and
Cleaning the Air Filter ” earlier in this manual.
3. Turn “H” needle clockwise 1/16 - 1/8 turn. See
Figure20.
1. Check oil fuel mixture.
2. Air filter dirty.
3. Carburetorrequiresadjustment.
Carburetorrequiresadjustment.
Engine starts, runs, and
accelerates but will not idle:
Turn idle speed screw clockwise to increase idle
speed.
String will not advance:
1. Lubricate with silicone spray.
1. String welded to itself.
2. Install more string. Refer to “String Replace-
ment” earlier in this manual.
2. Not enough string on spool.
3. Pull strings while alternately pressing down on
andreleasingspoolretainer.
4. Remove string from spool and rewind. Refer to
“String Replacement” earlier in this manual.
5. Advance string at full throttle.
3. String worn too short.
4. String tangled on spool.
5. Engine speed too slow.
16
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TROUBLESHOOTING
IFTHESE SOLUTIONS DO NOT SOLVETHE PROBLEM CONTACTYOUR AUTHORIZED SERVICE DEALER.
PROBLEM
POSSIBLE CAUSE
SOLUTION
Grasswrapsaround
driveshafthousingand
stringhead:
1. Cutting tall grass at ground level.
2. Operating trimmer at part throttle.
1. Cut tall grass from the top down.
2. Operate trimmer at full throttle.
Spool retainer hard to turn:
Oil drips from muffler:
Screw threads dirty or damaged.
Clean threads and lubricate with grease - if no
improvement,replacespoolretainer.
1. Operating trimmer at part throttle
2. Check oil/fuel mixture.
3. Air filter dirty.
1. Operate trimmer at full throttle.
2. Use fresh fuel and the correct 2-cycle oil mix.
3. Clean air filter. Refer to “Replacing and
Cleaning the Air Filter” earlier in this manual.
4. Turn “H” needle clockwise 1/16 - 1/8 turn. See
Figure20.
4. Carburetorrequiresadjustment.
NOTE:The carburetor adjustment needle(s) are equipped with plastic
cap(s) that prevents counterclockwise rotation from the original
factory adjustment. If your unit exhibits specific performance
problem(s) where theTrouble Shooting Section recommends a
counterclockwise needle adjustment and no adjustments have been
made since original purchase, the unit should be taken to a factory
authorized service dealer for repair. In most cases, the needed
adjustment is a simple task for the factory trained service representa-
tive.
IDLE SPEED
SCREW
“L” LO
NEEDLE
1
“H” HIGH
NEEDLE
Fig. 20
SAFETY DIRECTIVE
SOUND POWER/PRESSURE & HANDLE VIBRATION CHART FOR STRING TRIMMERS /
BRUSHCUTTERS
Information on Noise Emission per European Machine Safety Directive 98/37/EC.
The individual equipment listed was operated in a manner consistent with normal working conditions.
The A-weighted sound pressure level (LpA) at the operator’s ear and the A-weighted sound power level (LWA) were both
measured in accordance with Directive 79/113/EEC. Hearing protection is recommended where levels exceed 85 dBA.
Handle vibration was measured in accordance to ISO 7916. Read the safety precautions section of the manual.
SOUNDPRESSURE
LpA (dBA)
SOUNDPOWER
LwA(dBpA)
VIBRATION
m/s2
MODEL
PLT3043S
101
108
11.0
17
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WARRANTY
GUARANTEE
GUARANTEE – STATEMENT
(RTSA / RTUK / RTG)
All Ryobi products are guaranteed from defects in material and workmanship, for a period of twenty-four (24)
months, effective and evidenced from date of original invoice or delivery note.
Defects caused by normal wear and tear, unauthorized/improper maintenance/handling or overload are excluded
from this guarantee as are accessories such as battery packs, bulbs, blades and bits,etc.
In the event of malfunction within the guarantee period, please return the assembled product with proof of purchase,
to your dealer or nearest Ryobi Service Centre.
Your statutory rights in respect of defective products remain unaffected by the warranty.
RyobiTechnologies GmbH, Itterpark 7, D-40724 Hilden, Germany
RyobiTechnologies, Customer Services, Anvil House, Tuns Lane, Henley-on-Thames, RG9 1SA, UK
RyobiTechnologies, BP 50012 - 95945 Roissy CDG Cedex – FRANCE
RyobiTechnologies Australia PTY Limited, 359-361 Horsley Road, Milperra, NSW 2214 Australia
18
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NOTES
19
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OPERATOR'S MANUAL
String Trimmer
PLT3043S
RyobiTechnologies GmbH
Itterpark 7
D-40724 Hilden
Germany
Tel.: +49 (0)2103 / 29 58 0
Fax : +49 (0)2103 / 29 58 29
RyobiTechnologies
Customer Services
Anvil House
Tuns Lane
Henley-on-Thames
RG9 1SA
UK
RyobiTechnologies
BP 50012 - 95945 Roissy CDG Cedex – FRANCE
RY70113
983000-225
3-03
RyobiTechnologies Australia PTY Limited
359-361 Horsley Road, Milperra, NSW 2214 Australia
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