OPERATOR’S MANUAL
Trimmer / Brushcutter
PBC3046E
RY70105A
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.
Thank you for buying a Ryobi trimmer.
SAVE THIS MANUAL FOR FUTURE REFERENCE
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SAFETY
■ Inspect the unit before each use for loose fasteners, fuel
SPECIFIC SAFETY RULES FOR BRUSHCUTTER AND
BLADE USE
leaks etc. Replace any damaged parts before use.
■ The string head or blade will rotate during carburettor
■ After engine stops, keep rotating blade in heavy grass
adjustments.
or pulpy weeds until it stops.
■ 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
development of these symptoms. It is not known at
present 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:
■ Do not operate the brushcutter unless the blade guard is
firmly secured in place and in good condition.
■ Use heavy gloves while installing or removing blades.
■ Always stop the engine and remove the sparking plug
wire before attempting to remove any obstruction caught
or jammed in the blade or before removing and install-
ing the blade.
■ Do not attempt to touch or stop the blade when it
is rotating.
■ A coasting blade can cause injury while it continues to
spin after the engine is stopped or throttle trigger
released. Maintain proper control until the blade has
completely stopped rotating.
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.
■ Replace any damaged blade. Always make sure blade
is installed correctly and securely fastened before each
use. Failure to do so may cause serious injury.
b) After each period of operation, exercise to increase
blood circulation.
■ Use only the manufacturer’s replacement TRI-ARC
blade intended for use on this brushcutter. Do not use
any other blade.
c) Take frequent work breaks. Limit the amount of
exposure per day.
■ The TRI-ARC blade is suited for cutting pulpy weeds
and vines only. Do not use for any other purpose. Never
use the TRI-ARC blade to cut woody brush.
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 doctor about
these symptoms.
■ Exercise extreme caution when using the blade with this
unit. Blade thrust is the reaction which 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 may
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. For cutting ease and safety,
approach the weeds being cut from the right to the left.
In the event that an unexpected object or woody stock is
encountered, this could minimise the blade thrust
reaction.
■ Mix and store fuel in a container approved for petrol.
■ Mix fuel outdoors where there are no sparks or flames.
Wipe up any fuel spillage. Move 9 m (30 ft) away from
refuelling site before starting engine.
■ Stop the engine and allow to cool before refuelling or
storingtheunit.
■ Allow the engine to cool; empty the fuel tank and secure
the unit from moving before transporting in a vehicle.
SPECIFIC SAFETY RULES FOR TRIMMER USE
■ 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.
■ Never cut any material over 13 mm (1/2 in) diameter.
■ Always wear the shoulder strap when using the
brushcutter and adjust to a comfortable operating
position. Maintain a firm grip on both handles while
cutting with a blade. Keep the blade away from body
and below waist. Never use the brushcutter with the
blade located 76 cm (30 in) or more above the
ground level.
■ 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.
■ Cover the blade with the blade protector before storing
the unit or during transport. 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.
■ 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
the ground.
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 more safely.
SYMBOL
NAME
EXPLANATION
Safety Alert Symbol
Indicates danger, warning or caution. It means
attention!!! Your safety is involved.
Read Your Operator’s Manual
Weareyeandhearingprotection
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 ensure satisfaction and
safe use.
Wear eye and hearing protection when operating this
equipment.
Keep bystanders away
Ricochet
Keep all bystanders at least 15 m (50 ft) away.
Danger of Ricochet.
Tri-Arcblade
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
Boots
Rotational direction and maximum speed of the shaft
forthecuttingattachment.
10,000 min-1
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.
Petrol
Use unleaded petrol intended for motor vehicle use
with an octane rating of 87 ([R + M] / 2) or higher.
Oil
Use 2-cycle oil for air cooled engines.
Mix Petrol and Oil
Mix the fuel mix thoroughly and also each time before
refuelling.
4
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SYMBOLS
SYMBOL
NAME
EXPLANATION
Switch
On/OffSwitch
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 which 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 cutting attachment ....................................................................................................... 6.3 Kg
With blade .......................................................................................................................................... 6.62 Kg
With string head .................................................................................................................................. 6.49 Kg
Fuel tank volume ....................................................................................................................................................42.5cm3
Cuttingswath .......................................................................................................................................................... 457mm
Enginedisplacement .................................................................................................................................................. 30 cm3
Maximum engine performance (in accordance with ISO 8893) ............................................................................... 0.78 kW
Maximum rotational frequency of the spindle ...................................................................................................10,000/min-1
Engine Speed (rotational frequency) at recommended max. spindle rotational frequency .................................12,500/min-1
Engine speed (rotational frequency) at idle .............................................................................................2,000 - 2,500/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
RearHandle .......................................................................................................................... 4.2
FrontHandle ......................................................................................................................... 9.3
RearHandle .......................................................................................................................... 7.1
Vibration level racing
Sound pressure level (in accordance with EN ISO 11806:1997, ISO 7917:1987) ............................................................ 97
Sound power level (in accordance with ISO 10884) ...................................................................................................... 112
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
■ Bladeguard
damageoccurredduringcarriage.
■ Tri-Arcblade
■ Do not discard the packing material until you have
■ Shoulderstrap
inspected and operated the product.
■ Silencer guard, torque wrench and screws
■ FrontHandle
■ Holdingpin
■ Spanners - 13 mm (1/2 in) and 16 mm (5/8 in)
■ Fixings
■ Operator’smanual
FEATURES
ENGINE HOUSING
CUTTING
LINE
THROTTLE
INTERLOCK
GRASS DEFLECTOR
IGNITION
SWITCH
FRONT HANDLE
COUPLER
STARTER GRIP
LINE CUT-
OFF BLADE
THROTTLE
TRIGGER
STRAP
HANGER
SHAFT
HANDLE BARRIER
BAR
GEAR HEAD
KNOB
SHOULDER
STRAP
BLADE GUARD
Fig. 1
TRI-ARC BLADE
6
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ASSEMBLY
ATTACHING THE POWER HEAD TO THE
TRIMMER ATTACHMENT
See Figure 2.
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.
Slightly rotate from side to side until the button is locked
into 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
separate ends.
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 also be
used for hanging.
7
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ASSEMBLY
ATTACHING THE HANDLE
See Figure 4.
SPACER
A barrier handle should be used for ensuring the best
control and maximising operator safety.
HANDLE BASE
SCREWS
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.
HANDLE
BASE
3. Place the front handle grip onto the handle base and
install the two screws. Tighten securely.
HANDLE
BARRIER
BAR
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 remove or modify the spacer.
This spacer limits the upper position of the handle grip.
See Figure 4.
NUTS
BRACKET
STRAP HANGER
SPACER
FRONT HANDLE GRIP
SCREWS
Fig. 4
8
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ASSEMBLY
ATTACHING THE SHOULDER STRAP
See Figure 5.
REAR HOUSING
1. Connect the latch on the shoulder strap to the strap
hanger.
TORQUE
WRENCH
2. Adjust the strap to a comfortable position.
NOTE: To quickly release the product from the shoulder
strap, sharply pull the quick release tab.
SCREWS
SILENCER
GUARD
SHOULDER
STRAP
QUICK
RELEASE
TAB
BENT END OF
SILENCER GUARD
LATCH
OPENING IN REAR
HOUSING
Fig. 6
STRAP HANGER
NOTE: When converting from brushcutter to trimmer, or
trimmer to brushcutter, make sure the correct guard/
deflector is being used. See Figure 7.
Fig. 5
SILENCER GUARD
See Figure 6.
GRASS DEFLECTOR FOR
TRIMMER USE
1. Remove silencer guard and two screws from the
owner’skit.
2. Attach the silencer guard to the rear housing.
NOTE: Make sure the bent end of the silencer guard
fits securely into the opening of the rear housing.
3. Using the torque wrench supplied, install the two screws
and tighten securely.
BLADE GUARD FOR
BRUSHCUTTER USE
Fig. 7
9
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ASSEMBLY
BLADE GUARD
FOUR SCREWS
MOUNTING CLAMP
See Figure 8.
1. Attach the blade guard to the mounting bracket; install
the four screws (10-24 x 3/4 in) from the top of the mount-
ing bracket through the blade guard and into the
threaded mounting plates.
2. Using the torque wrench supplied, tighten all four screws
securely.
BLADE GUARD
NOTE: Whenusingthestringhead, thestringshieldmustbe
attached to blade guard.
NOTCHES
GRASS DEFLECTOR
See Figure 8.
1. Attach the grass deflector to the blade guard by placing
the three locking tabs into the three notches.
LOCKING TABS
2. Snap the blade guard and grass deflector together to
lock into place.
THREADED
MOUNTING PLATES
WARNING:
Always stop the engine and remove the sparking
plug wire before making any adjustments such as
changing cutting heads; this is to reduce the risk of
serious personal injury.
GRASS DEFLECTOR
Fig. 8
CONVERTING FROM TRIMMER TO
BRUSHCUTTER
REMOVING THE STRING HEAD
See Figure 9.
GEAR HEAD
1. Align the slot in the upper flange washer with the hole in
the gear head. Place the holding pin through the slot in
the upper flange washer and the hole in the gear head.
Turn the spool retainer clockwise to remove. Remove
the spool and string head from the drive connector.
UPPER FLANGE
WASHER
2. Place the holding pin through the upper flange washer
and the gear head. Using the 16 mm (5/8 in) spanner
supplied, turn the drive connector clockwise to remove.
GRASS
DEFLECTOR
3. Remove the upper flange washer from the gear shaft
and retain for blade installation.
SPANNER
(16 mm)
4. Remove the grass deflector by pushing in on the three
locking tabs while pulling on the grass deflector to
separate from the blade guard.
HOLDING PIN
NOTE: Store the string head parts together for later use.
DRIVE CONNECTOR
SPOOL RETAINER
STRING HEAD
Fig. 9
10
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ASSEMBLY
INSTALLING THE BLADE
See Figure 10.
1. Place the upper flange washer over the gear shaft with
the hollow side towards the blade guard.
GEAR HEAD
2. Centre the blade on the upper flange, making sure the
blade sits flat. Install the cupped washer with the raised
centre away from the blade. Install the blade nut. The
blade turns anticlockwise from the operator’s position.
BLADE
GUARD
3. Place the holding pin through the slot in the upper flange
washer and the hole in the gear head. Using the 13 mm
(1/2 in) spanner supplied, turn the blade nut
anticlockwise.
UPPER FLANGE
WASHER
4. Tighten nut securely.
BLADE
HOLDING PIN
CONVERTING FROM BRUSHCUTTER TO
TRIMMER
SPANNER
(13 mm)
REMOVING THE BLADE
CUPPED
See Figure 10.
WASHER
1. Place the holding pin through the slot in the upper flange
washer and the gear head. Turn the blade nut clockwise
to remove.
Fig.10
BLADE NUT
2. Remove the cupped washer and the blade.
3. Remove the upper flange washer from the gear shaft
and retain for the string head installation.
4. Attach the grass deflector to the blade guard by placing
the three locking tabs into the three notches.
5. Snap the blade guard and grass deflector together to
lock into place.
NOTE: Store the brushcutter parts together for later use.
INSTALLING THE STRING HEAD
See Figure 9.
1. Install the upper flange washer onto the gear shaft with
the hollow side towards the gear head.
2. Place the holding pin through the slot in the upper flange
washer and the hole in the gear head. Using the 16 mm
(5/8 in) spanner supplied, turn the drive connector
anticlockwise to install. Tighten securely.
3. Place the string head on the drive connector.
4. Place the holding pin through the slot in the upper flange
washer and the hole in the gear head. Install the spool
retainer and turn anticlockwise to tighten securely.
11
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OPERATION
FUEL AND REFUELLING
WARNING
HANDLING THE FUEL SAFELY
Always shut off engine before refuelling. Never add
fuel to a machine with a running or hot engine. Move
at least 9 m (30 ft) from refuelling 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 vapour.
■ Do not let petrol or oil come in contact with your skin.
■ Keep petrol and oil away from the eyes. If petrol or oil
comes in contact with the eyes, wash them immediately
with clean water. If irritation is still present, see a doctor
immediately.
■ Clean up spilled fuel immediately.
1 Litre
+
+
+
+
+
20 ml
40 ml
60 ml
80 ml
100 ml
=
=
=
=
=
2 Litres
3 Litres
4 Litres
5 Litres
MIXING THE FUEL
50:1
■ This product is powered by a 2-cycle engine and
requires pre-mixing petrol and 2-cycle oil. Pre-mix
unleaded petrol and 2-cycle engine oil in a clean
container approved for petrol.
}
■ This engine is certified to operate on unleaded petrol
intended for motor vehicle use with an octane rating of
87 ([R + M] / 2) or higher.
OPERATING THE TRIMMER
Hold the trimmer/brushcutter 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. See Figure 11.
■ Do not use any type of pre-mixed petrol/oil from fuel
service stations. This includes the pre-mixed petrol/oil
intended for use in mopeds, motorcycles etc.
■ Use high a quality 2-cycle self-mixing oil for air-cooled
engines. Do not use motor vehicle oil or 2-cycle out-
board oil.
Always operate trimmer at full throttle. Cut tall grass from
the top down. This will prevent grass from wrapping round
the shaft housing and string head, which may cause
damage from overheating. If grass becomes wrapped
round the string head, stop the engine, disconnect the
sparking plug wire, and remove the grass. Prolonged
cutting at partial throttle will result in oil dripping from
the silencer.
■ Mix 2% oil into the petrol. This is a 50:1 ratio.
■ Mix the fuel thoroughly and also each time before
refuelling.
■ Mix in small quantities. Do not mix quantities larger than
usable in a 30 day period. A 2-cycle oil containing a fuel
stabiliser 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 round 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 refuelling
site before starting engine.
NOTE: It is normal for smoke to be emitted from a new
engine during and after first use.
Fig.11
12
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OPERATION
ADVANCING THE STRING
GRASS DEFLECTOR LINE TRIMMING CUT-
OFF BLADE
See Figure 13.
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. Runengineatfullthrottle.
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. Resume trimming.
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 12.
■ Keep the trimmer tilted towards the area being cut; this
is the best cutting area.
Fig.13
■ 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, kerbs and wood may
wear string rapidly.
■ Avoid trees and shrubs. Tree bark, wood mouldings,
cladding and fence posts can easily be damaged by
thestring.
DANGEROUS
CUTTING AREA
BEST CUTTING
DIRECTION OF
AREA
ROTATION
Fig.12
13
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OPERATION
OPERATING THE BRUSHCUTTER
Hold the brushcutter 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. Brushcutter should be held
at a comfortable position with the trigger handle about hip
height. Maintain your grip and balance on both feet.
Position yourself so that you will not be drawn off balance
by the kick-back reaction of the cutting blade.
APPROACH THE WEEDS BEING
CUT FROM THE RIGHT. THE
WEEDS WILL BE CUT AGAINST
THE LEFT SIDE OF THE BLADE
GUARD.
Adjust the shoulder strap to position the brushcutter at a
comfortable operating position and to ensure that the
shoulder strap will reduce the risk of operator contact with
the blade. See Figure 14.
Fig.15
TRI-ARC BLADE
The TRI-ARC blade is suited only for pulpy weeds and
vines. When the blade becomes dull, it can be turned over
to extend the life of the blade. Do not sharpen the TRI-ARC
blade.
Use only TRI-ARC blade, part number 984227001, avail-
able at your local retailer.
CUTTING TECHNIQUE - BLADE
WARNING
Extreme care must be taken when using blades to
insure safe operation. Read the safety information for
safe operation using the blade. Refer to “Specific
Safety Rules for Brushcutter and Blade Use” earlier
in this manual.
■ Always hold brushcutter with both hands when operating.
Use a firm grip on both handles.
■ Maintain your grip and balance on both feet. Position
yourself so that you will not be drawn off balance by the
kick-back reaction of the cutting blade.
Fig.14
■ Inspect and clear the area of any hidden objects such
as glass, stones, concrete, fencing, wire, wood,
metal etc.
Exercise extreme caution when using the blade with this
unit. Blade thrust is the reaction which 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 may 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 mate-
rial being cut. For cutting ease and safety, approach the
weeds being cut from the right to the left. In the event that an
unexpected object or woody stock is encountered, this
could minimise the blade thrust reaction. See Figure 15.
■ Never use blades near footpaths, fencing, posts,
buildings or other immovable objects.
■ Never use a blade after hitting a hard object without first
inspecting it for damage. Do not use if any damage
is detected.
■ The unit is used as a scythe, cutting from the right to the
left in a broad sweeping action from side to side.
14
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OPERATION
STARTING AND STOPPING
IGNITION SWITCH
See Figures 16 and 17.
I
= ON TO RUN
O = OFF TO STOP
NOTE: The unit is equipped with an automatic choke feature.
Thestartinginstructionsforthisfeaturearedifferentfromunits
with a manual choke. Be sure to read and follow the starting
instructionsbelow.
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.
2 Push primer bulb 8 to 10 times.
NOTE: Do not squeeze the throttle trigger before engine
starts. Squeezing the throttle trigger at this time will prevent
the unit from starting.
THROTTLE
TRIGGER
3 Move the lever to the “COLD START” position. See
Fig.16
Figure17.
4 Pull the starter rope until engine runs.
5 Allow the engine to warm up for 4-10 seconds.
PRIMER BULB
6 Depress the throttle interlock, then squeeze and release
the throttle trigger. This allows the choke to automati-
cally set to the “WARM START” position. Your unit is
now ready for use.
NOTE: The lever will automatically set to the “WARM
START” position after the throttle trigger is squeezed for
thefirsttime.
TO START A WARM ENGINE:
WARM START
POSITION
1. Lay trimmer on a flat, bare surface.
2. Choke lever should already be in the “WARM
START” position. If not, squeeze and release throttle
trigger. Pull the starter rope until unit runs.
TO STOP THE ENGINE:
To stop the engine, depress the switch to the “O” position.
COLD START
POSITION
Fig.17
LEVER
15
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MAINTENANCE
6. Make sure the string head and the spool retainer are
installed on the shaft by turning the retainer
anticlockwise to tighten.
WARNING:
Use only original manufacturer’s replacement parts,
accessories and attachments. Failure to do so may
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
authorised service dealer.
■ Consequences of improper maintenance may include
excess carbon deposits resulting in loss of performance
and discharge of black oily residue dripping from
the silencer.
■ Make sure all guards, straps, deflectors and handles are
properly and securely attached to avoid the risk of
personal injury.
SPOOL
RETAINER
SPOOL REPLACEMENT
EZ LINE™ TAP ADVANCE SYSTEM
NEW PRE-WOUND SPOOL
Fig.18
See Figures 18 and 19.
If replacing string only, refer to “String Replacement” later in
this manual.
SPRING
Use only 2.4 mm (0.095 in) diameter monofilament string.
Use the manufacturer’s replacement string for best perfor-
mance.
SPOOL
SLOTS
1. Stop the engine, disconnect the sparking plug wire.
Hold the string head and unscrew the spool retainer.
Turn clockwise.
STRING HEAD
2. Remove the empty spool from the string head. Keep the
spring attached to the spool.
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
SHAFT
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.
EYELETS
Fig.19
5. Push down and turn the spool anticlockwise until it no
longer turns. Hold the spool down and rotate clockwise
a small amount. Release the spool. The spool should
be locked down in the string head. If not, hold down and
rotate until locked.
16
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MAINTENANCE
STRING REPLACEMENT
See Figures 20 and 21.
1. Stop the engine, disconnect the sparking plug wire.
Hold the string head and unscrew the spool re-
tainer. Turn clockwise.
2. Remove the spool from the string head. NOTE:
Keep the spring attached to the spool. Remove any
old string remaining on the spool.
SECOND
STRING
3. Cut two pieces of string, each being approximately
2.7m(9ft)long.
4. Insert the first string into the anchor hole in the upper
part of the spool. Wind the first string round the
upper part of the spool anticlockwise, 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.
Fig.22
SLOT
ARROWS ON
SPOOL
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.
Fig.23
SPOOL
SPRING
BLADE PROTECTOR
See Figures 24.
ARROWS ON
SPOOL
Always place the blade protector on the blade when the
unit is not in use. The blade protector has clips round the
edges to snap over the blade and keep it in place. Wear
gloves and be cautious when handling the blade.
ANCHOR
HOLE
NOTE: 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.
FIRST STRING
Fig.20
FIRST STRING
SLOT
BLADE
BLADE
PROTECTOR
Fig.21
CLIPS
Fig.24
17
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MAINTENANCE
CLEANING THE EXHAUST PORT AND
SILENCER
LATCH
Depending on the type of fuel used, the type and amount of
oil used, and/or your operating conditions, the exhaust port
and silencer may become blocked with carbon deposits. If
you notice a power loss with your petrol-powered tool, a
qualified service technician will need to remove these
deposits to restore performance.
PULL COVER
TO OPEN
SPARK ARRESTER
The spark arrester must be cleaned or replaced every
25 hours or yearly to ensure proper performance of your
product. Spark arresters may be in different locations
depending on the model purchased. Please contact your
nearest service dealer for the location of the spark arrester
for your model.
Fig.25
Cleaning Instructions:
FILTER
■ Remove the spark arrester from the silencer.
■ If your spark arrester is made of fibreglass, discard
andreplace.
■ If your spark arrester is made of metal, follow these
cleaning instructions:
1. Spray the spark arrester with a quality carbon
cleaner.
2. Gently clean using a wire brush.
SLOTS ON AIR
FILTER BASE
3. Install the new or cleaned spark arrester and reas-
semble completely before use.
REPLACING AND CLEANING AIR FILTER
See Figures 25 and 26.
TABS ON AIR
FILTER COVER
For proper performance and long life, keep air filter clean.
1 Remove the air filter cover by pushing down on the latch
with your thumb while gently pulling on the cover.
Fig.26
2 Remove the filter and clean it in warm soapy water.
Rinse and let dry completely. For best performance,
replace annually.
3 Reinstall the filter.
4 Replace the air filter cover by inserting the tabs on the
bottom of the cover into the slots on the air filter base;
push the cover up until it latches securely in place.
18
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MAINTENANCE
FUEL CAP
STORAGE (1 MONTH OR LONGER)
1. Drain all fuel from tank into a container approved for
petrol. Run engine until it stops.
WARNING:
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.
A leaking fuel cap is a fire hazard and must be
replacedimmediately.
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, the check valve may be faulty or the filter
clogged. Replace fuel cap if required.
3. Cover the blade with the blade protector before storing
theunit,orduringtransport.
4. Abide by all ISO and local regulations for the safe
storage and handling of petrol. Excess fuel should be
used up in other 2-cycle engine-powered equipment.
SPARKING PLUG
This engine uses a Champion RCJ-6Y with 0.63 mm
(0.025 in) electrode gap. Use an exact replacement and
replace annually.
19
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TROUBLESHOOTING
IFTHESE SOLUTIONS DO NOT SOLVETHE PROBLEM CONTACTYOUR AUTHORISED SERVICE DEALER.
PROBLEM
POSSIBLE CAUSE
SOLUTION
Engine will not start:
1. No spark.
1. Check spark. Remove sparking plug. Reattach
the sparking plug cap and lay sparking plug on
metal cylinder. Pull the starter rope and watch
for spark at sparking plug tip. If there is no
spark, repeat test with a new sparking plug.
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
2. No fuel.
next item).
3. Flooded engine.
3. Remove sparking plug and turn trimmer so
sparking plug hole is aimed at the ground.
Make sure lever is in the “WARM START”
position and pull starter cord 10 to 14 times.
This will clear excess fuel from engine. Clean
and reinstall sparking plug.With the throttle
trigger fully depressed, pull starter cord three
times with lever at “WARM START” position. If
engine does not start, move choke lever to
“COLD START”and follow normal starting
instructions in “STARTING AND STOPPING”
section. If engine still fails to start, repeat
procedure with a new sparking plug.
4. Starter rope pulls harder now than
when new.
4. Contact a service dealer.
Throttle trigger is depressed.
Release throttle trigger.Refer to “Starting and
Stopping” earlier in this manual.
Lever will not go into the
“COLD START” position:
*Turn “L” needle anticlockwise 1/16 turn. If “L” low
needlecannotbeturnedanticlockwise;donotforce
plastic limiter caps. Contact a service dealer. See
Figure27.
Engine starts but will not
accelerate:
Carburettorrequiresadjustment.
1. Use fresh fuel and the correct 2-cycle oil mix.
2. Cleanairfilter. Referto“ReplacingandCleaning
Air Filter” earlier in this manual.
Engine does not reach full
speed and emits excessive
smoke:
1. Check oil fuel mixture.
2. Air filter dirty.
3. Turn “H” needle clockwise 1/16 - 1/8 turn. See
Figure27.
3.Carburettorrequiresadjustment.
Carburettorrequiresadjustment.
Turn idle speed screw clockwise to increase
idle speed. See Figure 27.
Engine starts, runs, and
accelerates but will not
idle:
Turn idle speed screw anticlockwise to reduce
idle speed. See Figure 27. If after adjustment,
blade continues to rotate, return to an authorised
service dealer for repair.
Blade continues to rotate at
idle speed:
Carburettorrequiresadjustment.
20
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TROUBLESHOOTING
IFTHESE SOLUTIONS DO NOT SOLVETHE PROBLEM, CONTACTYOUR AUTHORISED SERVICE DEALER.
PROBLEM
POSSIBLE CAUSE
SOLUTION
String will not advance:
1. String welded to itself.
1. Lubricate with silicone spray.
2. Not enough string on spool.
2. Install more string. Refer to “String Replacement”
earlier in this manual.
3. Stringworntooshort.
4. String tangled on spool.
5. Engine speed too slow.
3. Pull strings while alternately pressing down on and
releasing spool retainer.
4. Remove string from spool and rewind. Refer to “String
Replacement” earlier in this manual.
5. Advance string at full throttle.
Grass wraps round shaft
housing and string
head:
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.
Spoolretainerhard
to turn:
Screw threads dirty or
damaged.
Clean threads and lubricate with grease - if no improve-
ment, replace spool retainer.
1. Operating trimmer at part
throttle.
1. Operate trimmer at full throttle.
Oil drips from silencer:
2. Checkoil/fuelmixture.
3. Airfilterdirty.
2. Use fresh fuel and the correct 2-cycle oil mix.
3. Clean per instruction in Maintenance Section.
4. Carburettor requires adjust-
ment.
4. Turn“H”needle clockwise 1/16 - 1/8 turn.See Figure 27.
NOTE: The carburettor adjustment needle(s) are equipped
with plastic cap(s) which prevent anticlockwise rotation from
the original factory adjustment. If your unit exhibits specific
performance problem(s) where the Troubleshooting Section
recommends an anticlockwise needle adjustment and no
adjustments have been made since original purchase, the
unit should be taken to a factory-authorised service dealer
for repair. In most cases, the needed adjustment is a simple
task for the factory-trained service representative.
IDLE SPEED
SCREW
“L” LO
NEEDLE
“H” HIGH
NEEDLE
Fig.27
21
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WARRANTY
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, unauthorised/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.
Ryobi Technologies GmbH, Itterpark, D-40724 Hilden, Germany
Ryobi Technologies, Customer Services, Anvil House, Tuns Lane, Henley-on-Thames, RG9 1SA, UK
Ryobi Technologies, BP 50012 - 95945 Roissy CDG Cedex – FRANCE
Ryobi Technologies Australia PTY Limited, 359-361 Horsley Road, Milperra, NSW 2214 Australia
SAFETY DIRECTIVE
SOUND POWER/PRESSURE AND HANDLE VIBRATION CHART FOR 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
MODELNO.
PBC3046E
RY70105A
97
112
7.1
EC DECLARATION OF CONFORMITY
According to machinery directive 98/37/EC and EMC directive 89/336/EEC - We,
Ryobi Technologies Inc., 1428 Pearman Dairy Road, Anderson, SC 29625, USA
declare in sole responsibility that the product: PBC3046E (RY70105A) - to which this certificate applies, conforms to the basic health
and safety requirements of the Machinery Directive 98/37/EC and other relevant directives, such as EMC Directive 89/336/EEC and
Outdoor Directive 2000/14/EC.
To effect correct application of the health and safety requirements stated in the EEC directives, the following European and/or
national standards and/or technical specifications were consulted: EN ISO 14982:1998, ISO 7916 & 7917, EN ISO 11806:1997, ISO
7918-1995, ISO 8380-1993, ISO 8893-1989, ISO 10884-1995. EN 292-1.1991, EN 292-2-1991, EN 292-2:1991/A1;1995, EN
563-1994, EN 27917-1991, ISO 7112-1982, ISO 7113-1991
Wayne Hill
Director, Environmental Compliance
Ryobi Technologies Inc.
1428 Pearman Dairy Road
Anderson, SC 29625, USA
December 21, 2002
22
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NOTES
23
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OPERATOR’S MANUAL
Trimmer / Brushcutter
PBC3046E
RY70105A
Ryobi Technologies GmbH
Itterpark 7
D-40724 Hilden
Germany
Tel.: +49 (0)2103 / 29 58 0
Fax : +49 (0)2103 / 29 58 29
Ryobi Technologies
Customer Services
Anvil House
Tuns Lane
Henley-on-Thames
RG9 1SA
UK
Ryobi Technologies
BP 50012 - 95945 Roissy CDG Cedex – FRANCE
Ryobi Technologies Australia PTY Limited
983000-322
6-03
359-361 Horsley Road, Milperra, NSW 2214 Australia
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