Ryobi Outdoor PBC3046E, RY70105 User Manual
OPERATOR'S MANUAL
String Trimmer / Brushcutter
PBC3046E
RY70105
Y our ne w trimmer has been engineered and manufactured to Ryobi’s high standard f or dependability , ease of operation, and operator
safety. Properly cared f or , it will give you y ears of rugged, trouble-free performance.
WARNING: To reduce the risk of injury, the user must read and understand the operator’ s man ual.
Thank you for buying a Ry obi trimmer .
SAVE THIS MANUAL FOR FUTURE REFERENCE
TABLE OF CONTENTS
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■ Safety.....................................................................................................................................................................2 - 3
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■ Symbols ........................................................................................................................ ......................................... 4 - 5
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■ Technical Data............................................................................................................................................................. 5
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■ Unpacking ................................................................................................................................................................... 6
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■ Features ...................................................................................................................................................................... 6
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■ Assembly ............................................................................................................................................................. 7 - 11
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■ Operation............................................................................................................................................................ 12 - 15
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■ Maintenance ....................................................................................................................................................... 16 - 19
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■ Troubleshooting................................................................................................................................................... 20 - 21
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■ Warranty .................................................................................................................................................................... 22
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■ Safety Directive......................................................................................................................................................... 22
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SAFETY
WARNING:
Do not attempt to operate this trimmer until you have read thoroughly and understand completely all instructions,
safety rules, etc. contained in this manual. Failure to comply can result in accidents involving fire, electric shock,
or serious personal injury. Save operator's manual and review frequently for continuing safe operation, and
instructing others who may use this tool.
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■ Secure long hair so it is above shoulder level to prevent
READ ALL INSTRUCTIONS
GENERAL SAFETY RULES
■ For safe operation, read and understand all instructions
before using the trimmer/brushcutter. 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.
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■ Never start or run the engine in a closed or poorly
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ventilated area; breathing exhaust fumes can kill.
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■ Clear the work area before each use. Remove all objects
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such as rocks, broken glass, nails, wire, or string which
can be thrown or become entangled in the string head or
blade.
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■ Wear full eye and hearing protection while operating this
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unit.
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■ Wear heavy long pants, boots, and gloves. Do not wear
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loose fitting clothing, short pants, jewelry of any kind, or
go barefoot.
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entanglement in any moving parts.
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■ Keep all bystanders, children, and pets at least 15 m
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(50 ft.) away.
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■ Do not operate this unit when you are tired, ill, or under
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the influence of alcohol, drugs, or medication.
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■ Do not operate in poor lighting.
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■ Keep firm footing and balance. Do not overreach.
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Overreaching can result in loss of balance or exposure
to hot surfaces.
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■ Keep all parts of your body away from any moving part.
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■ Do not touch area around the muffler or cylinder of the
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trimmer/brushcutter, these parts get hot from operation.
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■ Always stop the engine and remove the spark plug wire
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before making any adjustments or repairs except for
carburetor adjustments.
2
SAFETY
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■ Inspect the unit before each use for loose fasteners, fuel
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leaks, etc. Replace any damaged parts before use.
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■ The string head or blade will rotate during carburetor
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adjustments.
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■ It has been reported that vibrations from hand-held tools
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may contribute to a condition called Raynaud’s Syndrome 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 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 effects of vibration:
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.
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 condition,
immediately discontinue use and see your physician
about these symptoms.
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■ Mix and store fuel in a container approved for gasoline.
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■ Mix fuel outdoors where there are no sparks or flames.
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Wipe up any fuel spillage. Move 9 m (30 ft. ) away from
refueling site before starting engine.
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■ Stop the engine and allow to cool before refueling or
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storing the unit.
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■ Allow the engine to cool; empty the fuel tank and secure
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the unit from moving before transporting in a vehicle.
SPECIFIC SAFETY RULES FOR TRIMMER USE
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■ Replace string head if cracked, chipped, or damaged in
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any way. Be sure the string head or blade is properly
installed and securely fastened. Failure to do so can
cause serious injury.
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■ Make sure all guards, straps, deflectors and handles are
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properly and securely attached.
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■ Use only the manufacturer's replacement string in the
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cutting head. Do not use any other cutting attachment.
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■ Never operate unit without the grass deflector in place
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and in good condition.
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■ Maintain a firm grip on both handles while trimming. K eep
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string head below waist level. Never cut with the string
head located over 76 cm (30 in.) or more above the
ground.
SPECIFIC SAFETY RULES FOR BRUSHCUTTER AND
BLADE USE
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■ After engine stops, keep rotating blade in heavy grass
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or pulpy weeks until it stops.
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■ Do not operate the brushcutter unless the blade guard is
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firmly secured in place and in good condition.
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■ Use heavy gloves while installing or removing blades.
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■ Always stop the engine and remove the spark plug wire
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before attempting to remove any obstruction caught or
jammed in the blade or before removing and installing
the blade.
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■ Do not attempt to touch or stop the blade when it is
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rotating.
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■ A coasting blade can cause injury while it continues to
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spin after the engine is stopped or throttle trigger released. Maintain proper control until the blade has
completely stopped rotating.
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■ Replace any blade that has been damaged. Always
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make sure blade is installed correctly and securely
fastened before each use. Failure to do so can cause
serious injury.
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■ Use only the manuf acturer's replacement TRI-ARC b lade
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intended for use on this brushcutter . Do not use any other
blade.
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■ The TRI-ARC blade is suited f or cutting pulpy w eeds and
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vines only . Do not use for any other purpose. Ne v er use
the TRI-ARC b lade to cut woody brush.
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■ Exercise extreme caution when using the blade with this
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unit. Blade thrust is the reaction that may occur when
the spinning blade contacts anything it cannot cut. This
contact may cause the blade to stop for an instant, and
suddenly “thrust” the unit away from the object that was
hit. This reaction can be violent enough to cause the
operator to lose control of the unit. Blade thrust can
occur without warning if the blade snags, stalls, or binds.
This is more likely to occur in areas where it is difficult to
see the material being cut. F or cutting ease and saf ety,
approach the weeds being cut from the right to the left. In
the event an unexpected object or woody stock is
encountered, this could minimize the blade thrust
reaction.
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■ Nev er cut any material ov er 13 mm (1/2 in.) diameter .
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■ Always wear the shoulder strap when using the
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brushcutter and adjust to a comfortable operating
position. Maintain a firm grip on both handles while
cutting with a blade. K eep the blade a wa y from body and
below waist. Never use the brushcutter with the blade
located 76 cm (30 in.) or more above the ground level.
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■ Cover the blade with the blade protector before storing
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the unit, or during transportation. Always remove the
blade protector before using the unit. If not removed, the
blade protector could become a thrown object as the
blade begins to turn.
3
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.
Read Your Operator’s Manual 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.
Wear eye and hearing protection. Wear eye and hearing protection when operating this
equipment.
Keep bystanders away. Keep all bystanders at least 50 feet (15 m)
away.
Ricochet. Danger of Ricochet.
10,000 min
Tri-Arc blade. Tri-Arc blade is appropriate for this unit and is suited
for cutting pulpy weeds and vines.
Do not use toothed blade. This unit is not intended for use with a toothed saw
type blade.
RPM Decal Rotational direction and maximum speed of the shaft
-1
for the cutting attachment.
Boots Wear non-slip safety footwear when using this
equipment.
Gloves Wear non-slip, heavy-duty gloves.
No Smoking 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 Mix the fuel mix thoroughly and also each time before
fueling.
4
SYMBOLS
SYMBOL NAME EXPLANATION
Switch On/Off Switch
I = ON to Run
O = OFF to Stop
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 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 D ATA
Weight Without fuel and cutting attachment ......................................................................................................6.3 Kg
With blade ...........................................................................................................................................6.62 Kg
With string head ..................................................................................................................................6.49 Kg
Fuel tank volume ................................................................................................................................................... 42.5 cm
Cutting swath.......................................................................................................................................................... 457 mm
Engine displacement ................................................................................................................................................ 30 cm
Maximum engine performance (in accordance with ISO 8893) ............................................................................... 0.78 kW
Maximum rotational frequency of the spindle ....................................................................................................10000 min
Engine Speed (rotational frequency) at recommended max. spindle rotational frequency..................................12500 min
Engine speed (rotational frequency) at idle ...............................................................................................2000 - 2500 min
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 - Front Handle ......................................................................................................................... 3.7
Rear Handle .......................................................................................................................... 4.2
Vibration level racing Front Handle ......................................................................................................................... 9.3
Rear Handle .......................................................................................................................... 7.1
Sound pressure level (in accordance with EN ISO 11806:1997, ISO 7917:1987) ............................................................ 97
Sound power level (in accordance with ISO 10884) ....................................................................................................... 112
3
3
-1
-1
-1
5
UNPACKING
INSTRUCTIONS
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■ Carefully remove the product from the carton.
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■ Inspect the product to make sure no breakage or
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damage occurred during shipping.
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■ Do not discard the packing material until you have
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inspected and operated the product.
FEATURES
CUTTING
LINE
PACKING LIST FOR OWNER'S KIT
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■ Grass deflector
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■ Blade guard
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■ Tri-Arc blade
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■ Shoulder strap
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■ Muffler guard, torx wrench and screws
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■ Front Handle
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■ Holding pin
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■ Wrenches - 13 mm (1/2 in.) and 16 mm (5/8 in.)
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■ Hardware
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■ Operator's manual
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ENGINE HOUSING
THROTTLE
INTERLOCK
GEAR HEAD
GRASS DEFLECTOR
LINE CUT
OFF BLADE
SHAFT
BLADE GUARD
KNOB
FRONT HANDLE
COUPLER
IGNITION
SWITCH
STARTER GRIP
THROTTLE
TRIGGER
STRAP
HANGER
HANDLE
BARRIER BAR
SHOULDER
STRAP
TRI-ARC BLADE
Fig. 1
6
ASSEMBLY
ATTACHING THE POWER HEAD TO THE
TRIMMER ATTACHMENT
See Figure 2.
WARNING:
Never attach or adjust any attachment while power head is
running. Failure to stop the engine can cause serious
personal injury.
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.
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.
NOTE: If the button does not release completely in the
positioning hole, the shafts are not locked into place.
Slightly rotate from side to side until the button is locked into
place.
3. Tighten the knob securely.
WARNING:
Be certain the knob is fully tightened before operating
equipment; check it periodically for tightness during use
to avoid serious injury.
GUIDE
RECESS
POSITIONING
HOLE
TRIMMER ATTACHMENT
HOLE
STRING TRIMMER
SHAFT
COUPLER
KNOB
Fig. 2
HANGER CAP
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
separate ends.
ATTACHING THE STORAGE HANGER
See Figure 3.
There are two ways to hang your attachment for storage.
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■ To use the hanger cap, push in the button and place the
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hanger cap over end of the lower end attachment shaft.
Slightly rotate the cap from side to side until the button
locks into place.
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■ The secondary hole in the attachment shaft can be used
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for hanging purposes as well.
BUTTON
Fig. 3
7
ASSEMBLY
ATTACHING THE HANDLE
See Figure 4.
A barrier handle should be used for ensuring the best
control and maximizing operator safety.
1. Place the handle base and the bracket on the shaft
housing below the spacer .
2. Install the two handle base screws and nuts, but do not
tighten completely .
3. Place the front handle grip onto the handle base and
install the two screws. Tighten securely.
4. Adjust the position of the front handle for best balance
and comfort.
5. Tighten the two handle base screws securely.
NOTE: Do not attempt to remov e or modify the spacer . This
spacer limits the upper position of the handle grip.
Figure 4.
See
HANDLE BASE
SCREWS
BRACKET
SP ACER
HANDLE
BASE
HANDLE
BARRIER
BAR
NUTS
STRAP HANGER
SPACER
FRONT HANDLE GRIP
SCREWS
Fig. 4
8
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