OPERATOR'S MANUAL
30cc String Trimmers and Brushcutter
ZR30000 Series
SS30
ZR30002
CS30
ZR30000
BC30
ZR30004
Your 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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GENERAL SAFETY RULES
■ Keep all parts of your body away from any moving part.
■ To avoid hot surfaces, never operate the unit with the
WARNING:
Read and understand all instructions. Failure to follow
all instructions listed below may result in electric shock,
fire and/or serious personal injury.
bottom of the engine above waist level.
■ Do not touch area around the muffler or cylinder of the
unit, these parts get hot from operation.
■ Always stop the engine and remove the spark plug wire
before making any adjustments or repairs except for
carburetoradjustments.
READ ALL INSTRUCTIONS
■ For safe operation, read and understand all instructions
before using this product. Follow all safety instructions.
Failure to follow all safety instructions listed below, can
result in serious personal injury.
■ Inspect the unit before each use for loose fasteners, fuel
leaks, etc. Replace any damaged parts before use.
■ The string head or blade will rotate during carburetor
adjustments.
■ Do not allow children or untrained individuals to use this
■ 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 vibration:
unit.
■ Never start or run the engine in a closed or poorly
ventilated area; breathing exhaust fumes can kill.
■ Clear the work area before each use. Remove all objects
such as rocks, broken glass, nails, wire, or string which
can be thrown or become entangled in the cutting line or
blade.
■ Wear safety glasses or goggles that are marked to
comply with ANSI Z87.1 standard when operating this
product.
■ Product users on United States Forest Service land, and
in some states, must comply with fire prevention
regulations. This product is equipped with a spark
arrestor; however, other user requirements may apply.
Check with your federal, state, or local authorities.
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
bloodcirculation.
■ Wear heavy, long pants, boots, and gloves. Do not wear
loose fitting clothing, short pants, or go barefoot. Do not
wear jewelry of any kind.
c) Take frequent work breaks. Limit the amount of
exposure per day.
■ Never operate this unit on the operator's left side.
d) Keep the tool well maintained, fasteners tightened
andwornpartsreplaced.
■ Secure long hair above shoulder level to prevent en-
tanglement in moving parts.
If you experience any of the symptoms of this condition,
immediately discontinue use and see your physician
about these symptoms.
■ Keep all bystanders, children, and pets at least 15 m
(50 ft.) away.
■ Do not operate this unit when you are tired, ill, or under
■ Mix and store fuel in a container approved for gasoline.
the influence of alcohol, drugs, or medication.
■ 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 operate in poor lighting.
■ Keep firm footing and balance. Do not overreach.
Overreaching can result in loss of balance or exposure
to hot surfaces.
■ Stop the engine and allow to cool before refueling or
storing the unit.
■ Allow the engine to cool; empty the fuel tank and secure
the unit from moving before transporting in a vehicle.
Page3
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SPECIFIC SAFETY RULES
■ Replace any blade that has been damaged. Always
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.
make sure blade is installed correctly and securely
fastened before each use. Failure to do so can cause
serious injury.
■ Use only the manufacturer's replacementTRI-ARC®
blade intended for use on this brushcutter. Do not use
any other blade.To install any other brand blade or
cutting head to this brushcutter can result in serious
personal injury.
■ 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.
To install any other brand of cutting head to this string
trimmer can result in serious personal injury.
■ The TRI-ARC® blade is suited for cutting thicker weeds
or pulpy stalks only. Do not use for any other purpose.
Never use the TRI-ARC® blade to cut woody brush.
■ Exercise extreme caution when using the blade with this
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. For cutting ease and safety,
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.
■ 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
the ground.
SPECIFIC SAFETY RULES FOR
BRUSHCUTTER AND BLADE USE
■ After engine stops, keep rotating blade in thicker weeds
or pulpy stalks until it stops.
■ Do not operate the brushcutter unless the brushcutter
guard is firmly secured in place and in good condition.
■ Never cut any material over 13 mm (1/2 in.) diameter.
■ Use heavy gloves when operating the brushcutter and
when installing or removing blades.
■ Always wear the shoulder harness 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 level.
■ Always stop the engine and remove the spark plug wire
before attempting to remove any obstruction caught or
jammed in the blade or before removing and installing
theblade.
■ Never use the brushcutter with the blade located 76 cm
■ Do not attempt to touch or stop the blade when it is
(30 in.) or more above the ground level.
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.
Page4
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SYMBOLS
Someofthefollowingsymbolsmaybeusedonthistool.Pleasestudythemandlearntheirmeaningforsafeoperation
of this product.
SYMBOL
NAME
EXPLANATION
Safety Alert Symbol
Precautions that involve your safety.
.
Read the Operator’s Manual
Wear Eye and Hearing Protection
Keep Bystanders Away
Ricochet
To reduce the risk of injury, user must read and
understand operator’s manual before using this
product.
Wear eye protection which is marked to comply with
ANSI Z87.1 as well as hearing protection when
operatingthisequipment.
Keep all bystanders at least 50 ft. (15 m) away.
50' 15m
Thrown objects can ricochet and result in personal
injuryorpropertydamage.
NoBlade
Do not install or use any type of blade on a product
displaying this symbol.
BladeThrust
Bewareofbladethrust.Productsauthorizedforblade
use will display this symbol to warn of blade thrust.
Gasoline and Oil
Use unleaded gasoline intended for motor vehicle
usewithanoctaneratingof87([R+M]/2)orhigher.
This product is powered by a 2-cycle engine and
requires pre-mixing gasoline and 2-cycle oil.
Page5
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SYMBOLS
The following signal words and meanings are intended to explain the levels of risk associated with this product.
SYMBOL SIGNAL
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
moderateinjury.
CAUTION: (Without Safety Alert Symbol) Indicates a situation that may result in property damage.
SERVICE
Servicing requires extreme care and knowledge and should
WARNING:
be performed only by a qualified service technician. For
service we suggest you return the product to your nearest
AUTHORIZED SERVICE DEALER for repair. When ser-
vicing, use only identical replacement parts.
To avoid serious personal injury, do not attempt to
operate this product until you read thoroughly and
understand completely the operator's manual. Save this
operator's manual and review frequently for continuing
safe operation and instructing others who may use this
product.
WARNING:
Observe all normal safety precautions related to avoid
electrical shock.
WARNING:
The operation of any product can result in foreign objects being thrown into your eyes, which can result in
severe eye damage. Before beginning operation, always wear safety goggles or safety glasses with side
shields and a full face shield when needed. We recommend Wide Vision Safety Mask for use over eyeglasses
or standard safety glasses with side shields. Always wear eye protection which is marked to comply with ANSI
Z87.1.
SAVE THESE INSTRUCTIONS
Page6
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SPECIFICATIONS
Weight - (without fuel)
ZR30000 ............................................................................................................................................. 10.7 lbs. (4.9 kg.)
ZR30002 ............................................................................................................................................. 12.1 lbs. (5.4 kg.)
ZR30004 ............................................................................................................................................. 12.9 lbs. (5.9 kg.)
String cutting width
ZR30000 ................................................................................................................................................ 17 in. (432 mm)
ZR30002 ................................................................................................................................................ 18 in. (457 mm)
ZR30004 ................................................................................................................................................ 18 in. (457 mm)
Bladecuttingwidth
ZR30004 ......................................................................................................................................................... 8 in. (203)
Enginedisplacement ............................................................................................................................................... 30cc
Stringdiameter
ZR30000 .............................................................................................................................................. .080 in. (2.0 mm)
ZR30002 .............................................................................................................................................. .095 in. (2.4 mm)
ZR30004 .............................................................................................................................................. .095 in. (2.4 mm)
UNPACKING
PACKING LIST - ZR30002
■ Trimmer Assembly
■ Owner’s Kit
INSTRUCTIONS
■ Carefully remove the product from the carton.
■ Inspect the product to make sure no breakage or
damageoccurredduringshipping.
■ Fronthandle
■ Do not discard the packing material until you have
■ Straight Shaft Grass deflector
■ HardwareBags(2)
■ HangerCap
inspected and operated the product.
■ If any parts are damaged or missing, please call
1-800-860-4050 for assistance.
■ Operator'smanual
PACKING LIST - ZR30004
■ Trimmer Assembly
■ Owner’s Kit
WARNING:
If any parts are missing, do not operate this tool until the
missing parts are replaced. Failure to do so could result
in possible serious personal injury.
■ “J”BarrierHandle
■ Straight Shaft Grass Deflector
■ Gear Head Locking Tool
■ HardwareBag
PACKING LIST - ZR30000
■ Trimmer Assembly
■ Owner’s Kit
■ ShoulderHarness
■ String Head Assembly
■ HangerCap
■ Fronthandle
■ Curved Shaft Grass deflector
■ HardwareBags(2)
■ HangerCap
■ Operator'smanual
■ Operator'smanual
Page7
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FEATURES
ZR30000
STARTER
GRIP
PRIMER
BULB
REAR HANDLE
CHOKE LEVER
COUPLER
THROTTLE TRIGGER
DRIVE SHAFT
HOUSING
FRONT HANDLE
KNOB
CURVED SHAFT GRASS
DEFLECTOR
STRING HEAD
Fig. 1a
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FEATURES
ZR30002
STARTER GRIP
REAR HANDLE
PRIMER
BULB
CHOKE LEVER
COUPLER
THROTTLE TRIGGER
DRIVE SHAFT
HOUSING
FRONT HANDLE
STRING
HEAD
KNOB
STRAIGHT SHAFT
GRASS DEFLECTOR
Fig. 1b
ZR30004
STARTER
GRIP
PRIMER
BULB
REAR HANDLE
“J” BARRIER
HANDLE
CHOKE LEVER
COUPLER
THROTTLE TRIGGER
DRIVE SHAFT
HOUSING
KNOB
BLADE
SHOULDER HARNESS
BRUSHCUTTER GUARD
Fig. 1c
Page9
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ASSEMBLY
ATTACHING THE POWER HEAD TO THE
ATTACHMENT
See Figure 2.
STRING TRIMMER
SHAFT
COUPLER
GUIDE
RECESS
WARNING:
Never attach or adjust any attachment while power head
is running. Failure to stop the engine can cause serious
personal injury.
BUTTON
The 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.
POSITIONING
HOLE
2. Push in the button located on the attachment shaft.
Align the button with the guide recess on the power head
coupler and slide the two shafts together. Rotate the
attachment shaft until the button locks into the position-
ing hole.
KNOB
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.
HANGER CAP
3. Tighten the knob securely.
WARNING:
HOLE
Be certain the knob is fully tightened before operating
equipment; check it periodically for tightness during use
to avoid serious personal injury.
SECONDARY
HOLE
REMOVING THE ATTACHMENT FROM THE
POWER HEAD
For removing or changing the attachment:
BUTTON
1. Loosen the knob.
2. Push in the button and twist the shafts to remove and
separateends.
ATTACHING THE STORAGE HANGER
See Figure 3.
Fig. 3
There are two ways to hang your attachment for storage.
■ 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.
Page10
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ASSEMBLY
ATTACHING THE FRONT HANDLE - ZR30000
AND ZR30002
See Figure 4.
FRONT HANDLE
LOCK
WASHER
1. Remove the front handle, bolt, flat washer, lock washer,
and wing nut from the Owner’s Kit.
WING
NUT
2. Install the front handle onto the top side of the drive
shaft housing and move it to a comfortable position.
3. Place the bolt through the front handle
NOTE: The hex bolt head fits inside the hex recess
molded into one side of the handle.
4. Install the flat washer, lock washer, and wing nut.
5. Tighten wing nut securely.
BOLT
Fig. 4
FLAT WASHER
ATTACHING THE “J” BARRIER HANDLE -
ZR30004
See Figure 5.
A barrier handle must be used for ensuring the best control
and maximizing operator safety when using a brushcutter.
BOLT
1/4-20 x 1 in.
BOLT
1/4-20 x 1 1/2 in.
FRONT
HANDLE
1. Hold the top and bottom clamp snugly in position on the
shaft housing so that handle will be located to the
operator'sleft.
2. Insert the end of the handle between the clamps.
3. Align the bolt holes and push the long bolt (1/4-20
x 1-1/2 in.) through the handle side.
STRAP
HANGER
4. Place short bolt (1/4-20 x 1 in.) through opposite side of
clamp. Install flat washer, lock washers and hex nuts
to hold the assembly in place.
CLAMP
5. After assembly is complete, adjust the position of the
handle for best balance and comfort.
6. Tighten first the long bolt and then the short bolt.
FLAT WASHER
LOCK WASHER
CLAMP
HEX NUT
Fig. 5
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ASSEMBLY
ATTACHING THE GRASS DEFLECTOR
BOLT
GRASS
DEFLECTOR
WARNING:
The line cutting blade on the grass deflector is sharp.
Avoid contact with the blade. Failure to avoid contact
can result in serious personal injury.
BRACKET
TO ATTACH THE CURVED SHAFT GRASS DEFLECTOR
- ZR30000
LOCK WASHER
See Figure 6.
1. Press the grass deflector onto the bottom of the curved
shaft as shown.
FLAT
WASHER
2. Insert the hex head cap screw through the grass deflec-
tor and the bracket on the curved shaft.
WING NUT
Fig. 6
3. Place the flat washer and lock washer on the hex head
cap screw.
4. Place the wing nut on the hex head cap screw and
tighten securely.
HEX HEAD
SCREW
TO ATTACH THE STRAIGHT SHAFT GRASS DEFLEC-
TOR - ZR30002
See Figure 7.
STRAIGHT SHAFT
TAB
GRASS DEFLECTOR
1. Remove the slotted hex head screw from the grass
deflector.
SLOT
2. Insert the tab on the mounting bracket in the slot on the
grass deflector.
3. Align the screw hole in the mounting bracket with the
screw hole in the grass deflector.
4. Insert the slotted hex head screw through the mounting
bracket and into the grass deflector.
5. Tighten the screw securely.
ATTACHING THE BRUSHCUTTER GUARD -
ZR30004
See Figure 8.
Fig. 7
The guard is shipped installed on these brushcutter models.
Instructionshavebeenincludedforreferencewhenchanging
from string trimmer operation back to brushcutter operation.
GEAR HEAD
BRUSHCUTTER GUARD
1. With the string head removed, place the brushcutter
guard on the gear head as shown.
HEX HEAD
SCREW
2. Install the three screws from bottom through the guard
and into the gear head.
3. Tighten the screws securely and torque to 40-50 in.lbs.
minimum (finger right plus 1/4 turn).
Fig. 8
Page12
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ASSEMBLY
ATTACHING THE SHOULDER HARNESS -
ZR30004
See Figure 9.
LATCH
1. Connect the latch on the shoulder harness to the strap
hanger.
2. Adjust the strap to a comfortable position.
STRAP HANGER
CONVERTING FROM BRUSHCUTTER TO
STRING TRIMMER - ZR30004
To convert from the brushcutter to the string trimmer,
remove the blade and brushcutter guard, attach the straight
shaft grass deflector and install the string head.
SHOULDER
HARNESS
Fig. 9
REMOVING THE TRI-ARC® BLADE AND
BRUSHCUTTER GUARD
See Figures 10 and 11.
1. Align the slot in the flanged washer with the slot in the
gearhead.
2. Place the gear head locking tool through the slot in the
flangedwasherandgearhead.
GEAR HEAD
LOCKING TOOL
3. Remove the blade nut by turning it clockwise.
4. Remove the cupped washer and the blade
Fig. 10
5. Remove the flanged washer from the gear head shaft
and retain it for the string head installation.
GEAR HEAD
BRUSHCUTTER
GUARD
6. Remove the three screws securing the brushcutter guard
to gear head.
FLANGED WASHER
7. Removethebrushcutterguard.
NOTE: Store the brushcutter parts together for later use.
INSTALLING THE STRAIGHT SHAFT GRASS DEFLEC-
TOR AND STRING HEAD
See Figures 10 and 12.
1. Install the grass deflector. Refer to “To Attach the
Straight Shaft Grass Deflector” earlier in this manual.
SLOT
2. Place the flanged washer on the gear head shaft.
CUPPED
WASHER
NOTE: The hollow side of the flanged washer should
face the gear head.
Fig. 11
BLADE NUT
FLANGED WASHER
2. Align the slot in the flanged washer with the slot in the
gearhead.
GEAR HEAD
3. Place the gear head locking tool through the slot in the
flangedwasherandgearhead.
STRING HEAD
ASSEMBLY
4. Install the string head assembly onto the gear head
shaft by turning counterclockwise.
6. Tighten the string head assembly securely.
SLOT
TIGHTEN
Fig. 12
LOOSEN
Page13
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ASSEMBLY
CONVERTING FROM STRING TRIMMER TO
BRUSHCUTTER - ZR30004
GEAR HEAD
FLANGED WASHER
To convert from the string trimmer to the brushcutter,
remove the string head assembly and straight shaft grass
deflector, attach the brushcutter guard and install the blade.
STRING HEAD
ASSEMBLY
REMOVING THE STRAIGHT SHAFT GRASS DEFLEC-
TOR AND STRING HEAD
See Figures 10 and 13.
SLOT
1. Align the slot in the flanged washer with the slot in the
gearhead.
2. Place the gear head locking tool through the slot in the
flangedwasherandgearhead.
3. Remove the string head assembly.
4. Remove the flanged washer and retain it for the blade
installation.
TIGHTEN
LOOSEN
5. Remove the screw securing the grass deflector.
6. Remove the grass deflector.
Fig. 13
NOTE: Store the string head parts together for later use.
GEAR HEAD
INSTALLING THE TRI-ARC® BLADE AND
BRUSHCUTTER GUARD
See Figures 10 and 14.
1. Install the brushcutter guard. Refer to “Attaching the
Brushcutter Guard” earlier in this manual.
FLANGED WASHER
2. Place the flanged washer over the gear head shaft with
the hollow side toward the brushcutter guard.
3. Center the blade on the flanged washer, making sure the
blade fits flat and the raised hub of the flanged washer
goes through the hole in the blade.
4. Install the cupped washer with the raised center away
from the blade.
SLOT
5. Place the blade nut onto the gear head shaft.
CUPPED
WASHER
6. Place the gear head locking tool through the slot in the
flangedwasherandgearhead.
BRUSHCUTTER
GUARD
7. Install the blade nut by turning it counterclockwise (left
handedthreads).
BLADE NUT
Fig. 14
8. Tighten the blade nut securely and torque to 120 in.lbs.
minimum (finger tight plus 1/2 turn).
Page14
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OPERATION
FUELING AND REFUELING THE TRIMMER
WARNING:
FUEL MIXTURE
To avoid burns from hot surfaces, never operate unit with
the bottom of the engine above waist level.
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 1 gallon container
approved for gasoline.
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.
Recommended fuel: This engine is certified to operate on
unleaded gasoline intended for automotive use.
Mix a high quality 2-cycle engine oil at 2.6 oz. per
gallon (US).
Always operate trimmer at full throttle. Cut tall grass from
the top down.This will prevent grass from wrapping around
the shaft housing and string head which may cause dam-
age 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.
Do not use automotive oil or 2-cycle outboard oil.
DO NOT mix quantities larger than usable in a 30 day period.
FUEL MIXTURE
HIGH QUALITY 2-CYCLE ENGINE OIL
GASOLINE
1 gallon (US)
1 Liter
OIL
2.6 oz.
20 cc (20 ml)
FILLING TANK
1. Clean surface around fuel cap to prevent contamination.
2. Loosen fuel cap slowly. Rest the cap on a clean surface.
3. Carefully pour fuel into the tank. Avoid spillage.
OPERATING THE
CURVED SHAFT
TRIMMER
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.
NOTE: It is normal for smoke to be emitted from a new
engine after first use.
WARNING:
Always shut off engine before fueling. Never add fuel to
a machine with a running or hot engine. Move at least 30
ft. (9m) fromrefuelingsitebeforestartingengine. Donot
smoke!
OPERATING THE
STRAIGHT SHAFT
TRIMMER
OPERATING THE TRIMMER
See Figure 15.
WARNING:
Always position the unit on the operator's right side. The
use of the unit on the operator's left side will expose the
user to hot surfaces and can result in possible burn
injury.
Fig. 15
Page15
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OPERATION
TO ADVANCE THE CUTTING LINE
String advance is controlled by tapping the string head on
grass while running engine at full throttle.
CURVED SHAFT TRIMMER
DANGEROUS
CUTTING AREA
1. Run engine at full throttle.
DIRECTION OF
ROTATION
2. Tap the spool retainer on ground to advance string. The
string advances each time the spool retainer is tapped.
Do not hold the spool retainer on the ground.
NOTE: The line trimming cut-off blade on the grass deflector
will cut the line to the correct length.
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.
TO ADVANCE THE CUTTING LINE MANUALLY
Push the spool retainer down while pulling on string(s) to
manually advance the string.
BEST CUTTING
AREA
Fig. 16
STRAIGHT SHAFT TRIMMER
CUTTING TIPS
See Figures 16 and 17.
DANGEROUS
CUTTING AREA
■ Keep the trimmer tilted toward the area being cut; this is
the best cutting area.
■ The curved shaft trimmer cuts when passing the unit
from right to left. The straight shaft trimmer cuts when
passing the unit from left to right. This will avoid throw-
ing debris at the operator. Avoid cutting in the dangerous
area shown in Figures 16 and 17.
■ 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.
BEST CUTTING
AREA
DIRECTION OF
ROTATION
Fig. 17
■ Avoid trees and shrubs. Tree bark, wood moldings,
siding, and fence posts can easily be damaged by the
string.
STRAIGHT SHAFT
TRIMMER LINE TRIMMING
CUT-OFF BLADE
GRASS DEFLECTOR LINE TRIMMING CUT-OFF BLADE
See Figure 18.
The 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 the
string whenever you hear the engine running faster than
normal, or when trimming efficiency diminishes.This will
maintain best performance and keep the string long enough
to advance properly.
CURVED SHAFT TRIMMER
LINE TRIMMING CUT-OFF
BLADE
Fig. 18
Page16
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OPERATION
TRI-ARC® BLADE
OPERATING THE BRUSHCUTTER
The TRI-ARC® blade is suited only for thicker weeds and
pulpy stalks. When the blade becomes dull, it can be
turned over to extend the life of the blade. Do not sharpen
theTRI-ARC® blade.
See Figures 19 and 20.
Hold the brushcutter with the right hand on the rear handle
and the left hand on the “J” Barrier 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 kickback reaction of the cutting blade.
Use onlyTRI-ARC® blade, part number AP04105, available
at your local retailer.
CUTTING TECHNIQUE - BLADE
Adjust the shoulder harness to position the brushcutter at a
comfortable operating position and to assure that the
shoulder harness will reduce the risk of operator contact
with the blade.
WARNING:
Extreme care must be taken when using blades to
ensure 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 on your right side 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
kickback reaction of the cutting blade.
■ Inspect and clear the area of any hidden objects such as
glass, rocks, concrete, fencing, wire, wood, metal, etc.
■ Never use blades near sidewalks, 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.
Fig. 19
■ Use only the TRI-ARC® blade.To install any other brand
blade or cutting head to this brushcutter can result in
serious personal injury.
BLADE THRUST
Exercise extreme caution when using the blade with this
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. For cutting ease and safety, approach
the weeds being cut with the brushcutter, from the right to
the left. In the event an unexpected object or woody stock
is encountered, this practice could minimize the blade
thrust reaction.
DIRECTION OF ROTATION
WARNING:
CUTTING AREA
Fig. 20
To avoid burns from hot surfaces, never operate unit
with the bottom of the engine above waist level.
Page17
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OPERATION
STARTING AND STOPPING
See Figures 21, 22, and 23.
Trimmer should be on a flat, bare surface for starting.
1. Slowly press the primer bulb seven (7) times.
2. Set the choke lever to the FULL CHOKE position (A).
3. Squeeze the throttle trigger fully and pull starter handle
sharply until engine attempts to run. Do not pull the
starter handle more than eight (8) times.
IGNITION SWITCH
NOTE: Keep throttle trigger squeezed fully through
STEP 6.
4. Set the choke lever to the HALF CHOKE position (B).
5. Pull the starter handle until the engine runs. Do not pull
the starter handle more than six (6) times.
THROTTLE
TRIGGER
6. Allow the engine to run for 15 seconds, then set the
Fig. 21
choke lever to the RUN position (C).
TO STOP THE ENGINE:
See Figure 21.
PRIMER BULB
To stop the engine, depress the switch to the stop
position “ ”.
STARTER GRIP
IF ASSISTANCE IS REQUIRED FOR THIS PRODUCT:
Do not return this product to the retail store where it was
purchased.Please call our Customer Service Department
for any issues you may have.
For Help Call: 1-800-860-4050
IGNITION
SWITCH
STARTING
INSTRUCTION
LABEL
THROTTLE TRIGGER
Fig. 22
CHOKE LEVER
RUN (C)
HALF
CHOKE (B)
ST
OP
FULL
CHOKE (A)
Fig. 23
Page18
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MAINTENANCE
WARNING:
Use only original manufacturer's replacement parts,
accessories and attachments. Failure to do so can
cause poor performance, possible injury and may void
your warranty.
SPOOL
RETAINER
You can often make adjustments and repairs described
here. For other repairs, have the trimmer serviced by an
authorized service dealer.
Fig. 24
SPOOL REPLACEMENT
SPRING
NEW PREWOUND SPOOL
See Figures 24 and 25.
If replacing string only, refer to “String Replacement” later in
this manual.
SLOTS
Use only monofilament string. Use original manufacturer's
replacement string for best performance.
EYELETS
String Diameter:
STRING HEAD
ZR30000 - .080 in. (2.0 mm)
ZR30002 - .095 in. (2.4 mm)
ZR30004 - .095 in. (2.4 mm)
1. Stop the engine, disconnect the spark plug wire. Hold
the string head and unscrew the spool retainer.
To remove the spool retainer:
Turn the spool retainer counterclockwise for models
ZR30000.
Turn the spool retainer clockwise for models ZR30002
andZR30004.
SHAFT
2. Remove the empty spool from the string head. Keep the
spring attached to the spool.
Fig. 25
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 6 in. (152 mm) beyond each slot.
6. Make sure the string head and the spool retainer are
installed on the drive shaft.
To install the spool retainer:
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.
Turn the spool retainer clockwise for models ZR30000.
Turn the spool retainer counterclockwise for models
ZR30002andZR30004.
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.
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.
Page19
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MAINTENANCE
STRING REPLACEMENT
See Figures 26, 27, and 28.
SPOOL
SPRING
Use only monofilament string. Use original manufacturer's
replacement string for best performance.
ARROWS ON
String Diameter:
SPOOL
ZR30000 - .080 in. (2.0 mm)
ZR30002 - .095 in. (2.4 mm)
ZR30004 - .095 in. (2.4 mm)
ANCHOR
HOLE
1. Stop the engine, disconnect the spark plug wire. Hold
the string head and unscrew the spool retainer.
To remove the spool retainer:
FIRST STRING
Fig. 26
Turn the spool retainer counterclockwise for models
ZR30000.
Turn the spool retainer clockwise for models ZR30002
andZR30004.
2. Remove the spool from the string head.
FIRST STRING
NOTE: Keep the spring attached to the spool. Remove
any old string remaining on the spool.
3. Cut two pieces of string, each being approximately 9 ft.
(2.7 m) long.
SLOT
SECOND
STRING
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 6 in. (152 mm) extended
beyond the slot. Do not overfill. After winding the string,
there should be at least 1/4 in. (6 mm) between the
wound string and the outside edge of the spool.
Fig. 27
5. Repeat above step with second string, using the bottom
part of spool. Do not overfill.
SLOT
ARROWS ON
SPOOL
6. Replace the spool and the spool retainer. Refer to “Spool
Replacement” earlier in this manual.
Fig. 28
Page20
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MAINTENANCE
CLEANING THE EXHAUST PORT AND
MUFFLER
LATCH
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.
SPARK ARRESTOR
PULL COVER
TO OPEN
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.
Fig. 29
Cleaning Instructions:
■ Remove the spark arrestor from the muffler.
FILTER
■ If your spark arrestor is made of a fiberglass material,
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.
SLOTS ON AIR
FILTER BASE
2. Gently clean using a wire brush.
3. Install the new or cleaned spark arrestor and reas-
semble completely before use.
REPLACING AND CLEANING AIR FILTER
See Figures 29 and 30.
For proper performance and long life, keep air filter clean.
TABS ON AIR
FILTER COVER
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.
Fig. 30
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.
Page21
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MAINTENANCE
FUEL CAP
STORAGE (1 MONTH OR LONGER)
1. Drain all fuel from tank into a container approved for
gasoline. Run engine until it stops.
WARNING:
A leaking fuel cap is a fire hazard and must be replaced
immediately.
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.
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.
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.
SPARK PLUG
This engine uses a Champion RCJ-6Y with 0,63 mm
(.025 in.) electrode gap. Use an exact replacement and
replace annually.
Page22
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TROUBLESHOOTING
IFTHESE SOLUTIONS DO NOT SOLVETHE PROBLEM CONTACTYOUR AUTHORIZED SERVICE DEALER.
PROBLEM
POSSIBLE CAUSE
SOLUTION
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.
Engine will not start:
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 servicing dealer. If
primer bulb fills, engine may be flooded,
proceed to next item.
2. No fuel.
3. Engine is flooded.
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 proce-
dure. If engine still fails to start, repeat
procedure with a new spark plug.
4. Contact a servicing dealer.
4. Starter rope pulls harder now than
when new.
Allowenginetocompletelywarmup.Ifenginedoes
not accelerate after three minutes, contact a ser-
vicing dealer.
Engine starts but will not
accelerate:
Engine requires approximately three
minutes to warm up.
Contact a servicing dealer.
Engine starts but will only
run at high speed at half
choke:
Carburetor requires adjustment.
1. Use fresh fuel and the correct 2-cycle oil mix.
2. Clean air filter. Refer to “Replacing and
Cleaning Air Filter” earlier in this manual.
3. Contact a servicing dealer.
Engine does not reach full
speed and emits exces-
sive smoke:
1. Check oil fuel mixture.
2. Air filter is dirty.
3. Spark arrestor screen is dirty.
Turn idle speed screw clockwise to increase idle
speed. See Figure 31.
Engine starts, runs, and
accelerates but will not
idle:
Idle speed screw on carburetor needs
adjustment.
Page23
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TROUBLESHOOTING
IFTHESE SOLUTIONS DO NOT SOLVETHE PROBLEM CONTACTYOUR AUTHORIZED SERVICE DEALER.
PROBLEM
POSSIBLE CAUSE
SOLUTION
String will not advance
when using
the EZ Line™ tap advance
system:
1. String is welded to itself.
2. Not enough string on spool.
1. Lubricate with silicone spray.
2. Install more string. Refer to “String Replace-
ment” earlier in this manual.
3. Pull strings while alternately pressing down
on and releasing spool retainer.
3. String is worn too short.
4. String is tangled on spool.
5. Engine speed is too slow.
Screw threads are dirty or damaged.
4. Remove string from spool and rewind Refer to
“String Replacement” earlier in this manual.
5. Advance string at full throttle.
Spool retainer hard to turn
when using EZ Line™ tap
advance system:
Clean threads and lubricate with grease - if no
improvement, replace the spool retainer.
Grass wraps around
driveshaft 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 to prevent
wrapping.
2. Operate trimmer at full throttle.
Oil drips from muffler:
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 per instruction in Maintenance Section.
IDLE SPEED
SCREW
ST
OP
Fig. 31
Page24
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WARRANTY
THE FOLLOWING CARB STATEMENT ONLY APPLIES TO MODEL NUMBERS REQUIRED TO
MEET (CARB) REQUIREMENTS.
RYOBI TECHNOLOGIES INC. LIMITED WARRANTY FEDERAL AND CALIFORNIA EMISSION
CONTROL SYSTEMS NONROAD AND SMALL OFF-ROAD ENGINES
The U.S.Environmental Protection Agency (EPA), the California Air Resources Board (CARB), and RyobiTechnologies Inc. are pleased to
explain the Emission Control System Warranty on your nonroad or small off-road engine. In California, new small off-road engines must be
designed, built and equipped to meet the state's stringent anti-smog standards. In other states, new 2000 and later model year nonroad
engines must be designed, built and equipped, at the time of sale, to meet the U.S.EPA regulations for small nonroad engines.The nonroad
engine must be free from defects in materials and workmanship which cause it to fail to conform with U.S. EPA standards for the first one
year of engine use from the date of sale to the ultimate purchaser. RyobiTechnologies Inc.must warrant the emission control system on your
nonroad or small off-road engine for the period of time listed above provided there has been no abuse, neglect, or improper maintenance of
your nonroad or small off-road engine.
Your emission control system may include parts such as the carburetor or fuel injection system, the ignition system, the catalytic converter.
Also included may be hoses, belts, and connectors and other emission related assemblies.
Where a warrantable condition exists, RyobiTechnologies Inc. will repair your nonroad or small off-road engine at no cost to you, including
diagnosis (if the diagnostic work is performed at an authorized dealer), parts, and labor.
MANUFACTURER'SWARRANTY COVERAGE:
The 1995 and later small off road engines are warranted for one year in California. In other states, 1997 and later model year nonroad
engines are also warranted for one year. If any emission-related part on your engine is defective, the part will be repaired or replaced by
Ryobi Technologies Inc.free of charge.
OWNER'SWARRANTY RESPONSIBILITIES
(a) As the nonroad or small off-road engine owner, you are responsible for the performance of required maintenance listed in your owner's
manual. RyobiTechnologies Inc. recommends that you retain all receipts covering maintenance on your nonroad or small off-road
engine, but Ryobi Technologies Inc., cannot deny warranty solely for the lack of receipts or for your failure to ensure the performance of
all scheduled maintenance. Any replacement part or service that is equivalent in performance and durability may be used in non-warranty
maintenance or repairs, and shall not reduce the warranty obligations of the engine manufacturer.
(b) As the nonroad or small off-road engine owner, you should be aware, however, that Ryobi Technologies Inc., may deny you warranty
coverage if your nonroad or small off-road engine or a part has failed due to abuse, neglect, improper maintenance or unapproved
modifications.
(c) You are responsible for presenting your nonroad or small off-road engine to a RyobiTechnologies Inc., service dealer as soon as a
problem exists.The warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days.
If you have any questions regarding your warranty rights and responsibilities, you should contact a Ryobi Technologies Inc., Customer
Representative at 1-800-860-4050.
COVERAGE:
RyobiTechnologies Inc.warrants to the ultimate purchaser and each subsequent purchaser that your nonroad or small off-road engine will be
designed, built and equipped, at the time of sale, to meet all applicable regulations.RyobiTechnologies Inc. also warrants to the initial
purchaser and each subsequent purchaser that your nonroad or small off-road engine is free from defects in materials and workmanship
which cause the engine to fail to conform with applicable regulations for a period of one year.The 1995 and later small off road engines are
warranted for one year in California.In all other states for 1997 and later model years, EPA requires manufacturers to warrant non-road
engines for one year.These warranty periods will begin on the date the nonroad or small off-road engine is purchased by the initial purchaser.
If any emission-related part on your engine is defective, the part will be replaced by Ryobi Technologies Inc. at no cost to the owner.
Ryobi Technologies Inc.shall remedy warranty defects at any authorized Ryobi Technologies Inc. engine dealer or warranty station. Any
authorized work done at an authorized dealer or warranty station shall be free of charge to the owner if such work determines that a
warranted part is defective. Any manufacturer-approved or equivalent replacement part may be used for any warranty maintenance or
repairs on emission-related parts, and must be provided free of charge to the owner if the part is still under warranty. RyobiTechnologies Inc.
is liable for damages to other engine components caused by the failure of a warranted part still under warranty.
The California Air Resources Board's Emission Warranty Parts List specifically defines the emission-related warranted parts.(EPA's
regulations do not include a parts list, but EPA considers emission-related warranted parts to include all the parts listed below.)
These warranted parts are: Carburetor, Spark Plug, Ignition, Air Filter and Fuel Filter.
MAINTENANCE REQUIREMENTS
The owner is responsible for the performance of the required maintenance as defined by Ryobi Technologies Inc. in the operator's manual.
LIMITATIONS
The Emission Control Systems Warranty shall not cover any of the following:
(a) repair of replacement required because of misuse or neglect, lack of required maintenance, repairs improperly performed or replace-
ments not conforming to RyobiTechnologies Inc. specifications that adversely affect performance and/or durability, and alterations or
modifications not recommended or approved in writing by Ryobi Technologies Inc., and
(b) replacement of parts and other services and adjustments necessary for required maintenance at and after the first scheduled replace-
ment point.
The Emissions Compliance Period referred to on the Emissions Compliance label indicates the number of operating hours for which the
engine has been shown to meet Federal emission requirements. Category C=50 hours, B=125 hours, and A=300 hours.
Page25
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WARRANTY
EMISSIONSMAINTENANCESCHEDULEAND WARRANTEDPARTSLIST
EmissionsParts
InspectBefore
EachUse
CleanEvery
5 Hours
ReplaceEvery
25 Hours or Yearly
CleanEvery
25 Hours or Yearly
AIRFILTERASSY
INCLUDES:
FILTER .............................................................................. X........................................... X
SPARKSCREEN ............................................................................................................................................................... X
CARBURETORASSY
INCLUDES:
HEATDAM
GASKETS
FUELTANKASSY
INCLUDES:
FUELLINES ............................ X
FUELCAP ............................... X
FUELFILTER
IGNITIONASSY
INCLUDES:
SPARKPLUG ................................................................................................................... X
ALL EMISSIONS - RELATED PARTS ARE WARRANTED FOR ONE YEAR OR FOR THE PERIOD OF TIME PRIOR TO THE PARTS
FIRSTSCHEDULEDREPLACEMENTWHICHEVERCOMESFIRST.
Page26
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NOTES
Page27
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OPERATOR'S MANUAL
30cc String Trimmers and Brushcutter
ZR30000 Series
CS30 - ZR30000
SS30 - ZR30002
BC30 - ZR30004
• SERVICE
Now that you have purchased your tool, should a need ever exist for repair parts or service,
simply contact your nearest Ryobi Authorized Service Center. Be sure to provide all pertinent
facts when you call or visit. Please call 1-800-860-4050 for your nearest Ryobi Authorized
Service Center.
• MODEL NO. AND SERIAL NO.
The model number of this tool will be found on a plate attached to the motor housing.
Please record the model number and serial number in the space provided below.
• HOW TO ORDER REPAIR PARTS
WHEN ORDERING REPAIR PARTS,
ALWAYS GIVE THE FOLLOWING INFORMATION:
• MODEL NUMBER
• SERIAL NUMBER
RYOBI TECHNOLOGIES INC.
1428 Pearman Dairy Road
Post Office Box 1207
Anderson, SC 29625
Anderson, SC 29622
Phone 1-800-860-4050
983000-532
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