Ryobi CS30, SS30, BC30 Operator's manual

OPERATOR'S MANUAL

30cc String Trimmers and Brushcutters
RY30000 Series

CS30

(RY30020, RY30023)

SS30

(RY30040, RY30043)

BC30

(RY30060, RY30063)

Your new trimmer has been engineered and manufactured to Ryobi’s high standard for dependability, ease of operation, and
operator safety. Properly cared for, it will give you years of rugged, trouble-free performance.

WARNING: To reduce the risk of injury, the user must read and understand the operator’s manual before

using this product.

Thank you for buying a Ryobi trimmer.

SAVE THIS MANUAL FOR FUTURE REFERENCE

TABLE OF CONTENTS

C

AL

L

1

-

8

0

0

-

8

6

0

-

4

0

5

0

For any questions about operating or maintaining your trimmer, or brushcutte

r

call the Ryobi Help Line !

Your trimmer has been fully tested prior to shipment to ensure

your complete satisfaction.

Troubleshooting tips are also available in this operator's manual.

CALL US FIRST

®

n Introduction ...................................................................................................................................................................2

n General Safety Rules ....................................................................................................................................................3

n Specific Safety Rules ....................................................................................................................................................4

n Symbols .................................................................................................................................................................. 5 - 6

n Specifications ................................................................................................................................................................7

n Unpacking ....................................................................................................................................................................7

n Features ................................................................................................................................................................. 8 - 9

n Assembly............................................................................................................................................................. 10 - 14

n Operation ............................................................................................................................................................ 15 - 18

n Maintenance ..................................................................................................................................................... 19 - 22

n Troubleshooting................................................................................................................................................... 23 - 24

n Warranty.............................................................................................................................................................. 25 - 26

n Service Parts...............................................................................................................................................................28

INTRODUCTION

This product has many features for making its use more pleasant and enjoyable. Safety, performance, and dependability
have been given top priority in the design of this product making it easy to maintain and operate.

Page 2

GENERAL SAFETY RULES

WARNING:

Read and understand all instructions. Failure to follow all
instructions listed below may result in electric shock, fire
and/or serious personal injury.

READ ALL INSTRUCTIONS

n 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.

n Do not allow children or untrained individuals to use this

unit.

n Never start or run the engine in a closed or poorly ventilated

area; breathing exhaust fumes can kill.

n฀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.

n Wear safety glasses or goggles that are marked to comply

with ANSI Z87.1 standard when operating this product.

n฀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.

n 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.

n฀Never operate this unit on the operator's left side.

n฀Secure long hair above shoulder level to prevent

entanglement in moving parts.

n฀Keep all bystanders, children, and pets at least 15 m (50

ft.) away.

n฀Do not operate this unit when you are tired, ill, or under

the influence of alcohol, drugs, or medication.

n฀Do not operate in poor lighting.

n฀Keep firm footing and balance. Do not overreach.

Overreaching can result in loss of balance or exposure
to hot surfaces.

n฀Keep all parts of your body away from any moving part.

n To avoid hot surfaces, never operate the unit with the

bottom of the engine above waist level.

n Do not touch area around the muffler or cylinder of the

unit, these parts get hot from operation.

n Always stop the engine and remove the spark plug wire

before making any adjustments or repairs except for
carburetor adjustments.

n Inspect the unit before each use for loose fasteners, fuel

leaks, etc. Replace any damaged parts before use.

n The string head or blade will rotate during carburetor

adjustments.

n฀It has been reported that vibrations from hand-held tools

may contribute to a condition called Raynaud’s Syndrome
in certain individuals. Symptoms may include tingling,
numbness and blanching of the fingers, usually apparent
upon exposure to cold. Hereditary factors, exposure to
cold and dampness, diet, smoking and work practices
are all thought to contribute to the development of these
symptoms. It is presently unknown what, if any, vibrations
or extent of exposure may contribute to the condition.
There are measures that can be taken by the operator to
possibly reduce the effects of vibration:

a) Keep your body warm in cold weather. When oper-

ating the unit wear gloves to keep the hands and wrists
warm. It is reported that cold weather is a major factor
contributing to Raynaud’s Syndrome.

b) After each period of operation, exercise to increase

blood circulation.

c) Take frequent work breaks. Limit the amount of exposure

per day.

d) Keep the tool well maintained, fasteners tightened and

worn parts replaced.

If you experience any of the symptoms of this condition,

immediately discontinue use and see your physician about
these symptoms.

n Mix and store fuel in a container approved for gasoline.
n 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.

n Stop the engine and allow to cool before refueling or storing

the unit.

n Allow the engine to cool; empty the fuel tank and secure

the unit from moving before transporting in a vehicle.

Page 3

SPECIFIC SAFETY RULES

SPECIFIC SAFETY RULES FOR TRIMMER
USE

n 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.

n Make sure all guards, straps, deflectors and handles are

properly and securely attached.

n 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.

n฀Never operate unit without the grass deflector in place

and in good condition.

n 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

n฀After engine stops, keep rotating blade in thicker weeds

or pulpy stalks until it stops.

n Do not operate the brushcutter unless the brushcutter

guard is firmly secured in place and in good condition.

n Use heavy gloves when operating the brushcutter and

when installing or removing blades.

n 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
the blade.

n Do not attempt to touch or stop the blade when it is

rotating.

n 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.

n Replace any blade that has been damaged. Always make

sure blade is installed correctly and securely fastened
before each use. Failure to do so can cause serious
injury.

n Use only the manufacturer's replacement Tri-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.

n 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.

n฀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.

n฀Never cut any material over 13 mm (1/2 in.) diameter.

n Always wear the shoulder harness when using the brush-

cutter 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.

n Never use the brushcutter with the blade located 76 cm

(30 in.) or more above the ground level.

Page 4

SYMBOLS

50'฀15m

50'฀15m

Some of the following symbols may be used on this tool. Please study them and learn their meaning for safe
operation of this product.

฀฀฀฀฀SYMBOL NAME EXPLANATION

Safety Alert Symbol Precautions that involve your safety.
.

฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀

Read the Operator’s Manual To reduce the risk of injury, user must read and

understand operator’s manual before using this
product.

Wear Eye and Hearing Protection Wear eye protection which is marked to comply

with ANSI Z87.1 as well as hearing protection when
operating this equipment.

Keep Bystanders Away Keep all bystanders at least 50 ft. (15 m) away.

Ricochet Thrown objects can ricochet and result in personal

injury or property damage.

No Blade Do not install or use any type of blade on a product

displaying this symbol.

Blade Thrust Beware of blade thrust. Products authorized for

blade use will display this symbol to warn of blade
thrust.

Gasoline and Oil Use unleaded gasoline intended for motor vehicle

use with an octane rating of 87 ([R + M] / 2) or higher.
This product is powered by a 2-cycle engine and

Page 5

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

moderate injury.

฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀฀CAUTION: (Without Safety Alert Symbol) Indicates a situation that may result in property damage.

SERVICE

Servicing requires extreme care and knowledge and
should 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 servicing, use only identical replacement parts.

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

WARNING:

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.

Page 6

SPECIFICATIONS

Weight - (without fuel)

CS30 (RY30020, RY30023)..................................................................................................................10.7 lbs. (4.9 kg.)

SS30 (RY30040, RY30043) ..................................................................................................................12.1 lbs. (5.4 kg.)

BC30 (RY30060, RY30063).................................................................................................................. 12.9 lbs. (5.9 kg.)

String cutting width

CS30 (RY30020, RY30023).....................................................................................................................17 in. (432 mm)

SS30 (RY30040, RY30043) .....................................................................................................................18 in. (457 mm)

BC30 (RY30060, RY30063).....................................................................................................................18 in. (457 mm)

Blade cutting width

BC30 (RY30060, RY30063)..............................................................................................................................8 in. (203)

Engine displacement .................................................................................................................................................30cc

String diameter

CS30 (RY30020, RY30023)....................................................................................................................080 in. (2.0 mm)

SS30 (RY30040, RY30043) ....................................................................................................................095 in. (2.4 mm)

BC30 (RY30060, RY30063)....................................................................................................................095 in. (2.4 mm)

UNPACKING

INSTRUCTIONS

n Carefully remove the product from the carton.
n Inspect the product to make sure no breakage or damage

occurred during shipping.

n Do not discard the packing material until you have inspected

and operated the product.

n If any parts are damaged or missing, please call
1-800-860-4050 for assistance.

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.

PACKING LIST - CS30

n Trimmer Assembly
n Owner’s Kit
n Front handle
n Curved Shaft Grass deflector

n Hardware Bags (2)
n Bottle of 2-Cycle Oil

n Hanger Cap
n Operator's manual
n Warranty Registration Card

PACKING LIST - SS30

n Trimmer Assembly
n Owner’s Kit
n Front handle
n Straight Shaft Grass deflector

n Hardware Bags (2)
n Bottle of 2-Cycle Oil

n Hanger Cap
n Operator's manual
n Warranty Registration Card

PACKING LIST - BC30

n Trimmer Assembly
n Owner’s Kit
n “J” Barrier Handle
n Straight Shaft Grass Deflector

n Gear Head Locking Tool
n Hardware Bag
n Bottle of 2-Cycle Oil

n Shoulder Harness
n String Head Assembly
n Hanger Cap
n Operator's manual
n Warranty Registration Card

Page 7

FEATURES

CS30

(RY30020, RY30023)

DRIVE SHAFT

HOUSING

TRIGGER

LOCK

COUPLER

CURVED SHAFT GRASS

DEFLECTOR

STARTER

GRIP AND

ROPE

REAR HANDLE

PRIMER

BULB

THROTTLE TRIGGER

FRONT HANDLE

KNOB

STRING HEAD

Fig. 1a

Page 8

FEATURES

SS30

(RY30040, RY30043)

DRIVE SHAFT

HOUSING

STRING

HEAD

COUPLER

STRAIGHT SHAFT

GRASS DEFLECTOR

STARTER GRIP

AND ROPE

REAR HANDLE

TRIGGER

LOCK

PRIMER

BULB

THROTTLE TRIGGER

FRONT HANDLE

KNOB

BC30

(RY30060, RY30063)

DRIVE SHAFT HOUSING

BLADE

“J” BARRIER

HANDLE

COUPLER

Fig. 1b

STARTER GRIP

AND ROPE

REAR HANDLE

TRIGGER LOCK

PRIMER

BULB

THROTTLE TRIGGER

KNOB

SHOULDER HARNESS

BRUSHCUTTER GUARD

Fig. 1c

Page 9

ASSEMBLY

ATTACHING THE POWER HEAD TO THE
ATTACHMENT

See฀Figure฀2.

WARNING:

Never attach or adjust any attachment while power head
is running. Failure to stop the engine can cause serious
personal injury.

The attachment connects to the power head by means of a
coupler device.

1. Loosen the knob on the coupler of the power head shaft
and remove the end cap from the attachment.

2. Push in the button located on the 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 positioning hole.

฀฀฀฀NOTE:฀If the button does not release completely in the

positioning hole, the shafts are not locked into place.
Slightly rotate from side to side until the button is locked
into place.

3. Tighten the knob securely.

GUIDE

RECESS

BUTTON

POSITIONING

TRIMMER ATTACHMENT

STRING TRIMMER

SHAFT

COUPLER

HOLE

KNOB

Fig. 2

HANGER CAP

WARNING:

Be certain the knob is fully tightened before operating
equipment; check it periodically for tightness during use
to avoid serious personal injury.

REMOVING THE ATTACHMENT FROM THE
POWER HEAD

For removing or changing the attachment:

1. Loosen the knob.

2. Push in the button and twist the shafts to remove and
separate ends.

ATTACHING THE STORAGE HANGER

See฀Figure฀3.

There are two ways to hang your attachment for storage.
n 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.

n The secondary hole in the attachment shaft can be used

for hanging purposes as well.

HOLE

SECONDARY

HOLE

BUTTON

Fig. 3

Page 10

ASSEMBLY

ATTACHING THE FRONT HANDLE - CS30
AND SS30

See฀Figure฀4.

1. Remove the front handle, bolt, flat washer, lock washer,
and wing nut from the Owner’s Kit.

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.

ATTACHING THE “J” BARRIER HANDLE ­BC30

See฀Figure฀5.฀

A barrier handle must be used for ensuring the best control
and maximizing operator safety when using a brushcutter.

1. Hold the top and bottom clamp snugly in position on the
shaft housing so that handle will be located to the operator's
left.

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.

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.

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.

FRONT HANDLE

BOLT

FRONT

HANDLE

CLAMP

FLAT WASHER

BOLT

1/4-20 x 1 in.

LOCK

WASHER

WING

NUT

Fig. 4

BOLT

1/4-20 x 1 1/2 in.

STRAP

HANGER

Page 11

CLAMP

HEX NUT

FLAT WASHER

LOCK WASHER

Fig. 5

ASSEMBLY

ATTACHING THE 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.

TO ATTACH THE CURVED SHAFT GRASS DEFLECTOR

- CS30

See฀Figure฀6.

1. Press the grass deflector onto the bottom of the curved
shaft as shown.

2. Insert the hex head cap screw through the grass deflector
and the bracket on the curved shaft.

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.

TO ATTACH THE STRAIGHT SHAFT GRASS
DEFLECTOR - SS30

See฀Figure฀7.

1. Remove the slotted hex head screw from the grass
deflector.

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.

BOLT

BRACKET

STRAIGHT SHAFT

GRASS DEFLECTOR

SLOT

FLAT

WASHER

TAB

GRASS

DEFLECTOR

LOCK WASHER

WING NUT

HEX HEAD

SCREW

Fig. 6

ATTACHING THE BRUSHCUTTER GUARD

- BC30

See฀Figure฀8.

The guard is shipped installed on these brushcutter
models. Instructions have been included for reference when
changing from string trimmer operation back to brushcutter
operation.

1. With the string head removed, place the brushcutter guard
on the gear head as shown.

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 tight plus 1/4 turn).

Page 12

GEAR HEAD

Fig. 7

BRUSHCUTTER GUARD

HEX HEAD

SCREW

Fig. 8

ASSEMBLY

ATTACHING THE SHOULDER HARNESS ­BC30

See฀Figure฀9.

1. Connect the latch on the shoulder harness to the strap
hanger.

2. Adjust the strap to a comfortable position.

LATCH

CONVERTING FROM BRUSHCUTTER TO
STRING TRIMMER - BC30

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.

REMOVING THE TRI-ARC® BLADE AND
BRUSHCUTTER GUARD

See฀Figures฀10฀-11.

1. Align the slot in the flanged washer with the slot in the
gear head.

2. Place the gear head locking tool through the slot in the
flanged washer and gear head.

3. Remove the blade nut by turning it clockwise.

4. Remove the cupped washer and the blade

5. Remove the flanged washer from the gear head shaft and
retain it for the string head installation.

6. Remove the three screws securing the brushcutter guard
to gear head.

7. Remove the brushcutter guard.

NOTE: Store the brushcutter parts together for later use.

INSTALLING THE STRAIGHT SHAFT GRASS
DEFLECTOR AND STRING HEAD

See฀Figures฀10฀-฀12.

1. Install the grass deflector. Refer to “To Attach the Straight
Shaft Grass Deflector” earlier in this manual.

2. Place the flanged washer on the gear head shaft.

NOTE: The hollow side of the flanged washer should face

the gear head.

3. Align the slot in the flanged washer with the slot in the
gear head.

4. Place the gear head locking tool through the slot in the
flanged washer and gear head.

5. Install the string head assembly onto the gear head shaft
by turning counterclockwise.

6. Tighten the string head assembly securely.

GEAR HEAD

LOCKING TOOL

GEAR HEAD

SHOULDER

GEAR HEAD

SLOT

CUPPED

WASHER

BLADE NUT

FLANGED WASHER

STRAP HANGER

HARNESS

BRUSHCUTTER

GUARD

Fig. 9

Fig. 10

FLANGED

WASHER

Fig. 11

STRING HEAD

ASSEMBLY

Page 13

SLOT

LOOSEN

TIGHTEN

Fig. 12

ASSEMBLY

CONVERTING FROM STRING TRIMMER TO
BRUSHCUTTER - BC30

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.

REMOVING THE STRAIGHT SHAFT GRASS
DEFLECTOR AND STRING HEAD

See฀Figures฀10฀-฀13.

1. Align the slot in the flanged washer with the slot in the
gear head.

2. Place the gear head locking tool through the slot in the
flanged washer and gear head.

3. Remove the string head assembly.

4. Remove the flanged washer and retain it for the blade
installation.

5. Remove the screw securing the grass deflector.

6. Remove the grass deflector.

NOTE: Store the string head parts together for later

use.

INSTALLING THE TRI-ARC® BLADE AND
BRUSHCUTTER GUARD

See฀Figures฀10฀-฀14.

1. Install the brushcutter guard. Refer to “Attaching the
Brushcutter Guard” earlier in this manual.

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.

5. Place the blade nut onto the gear head shaft.

6. Place the gear head locking tool through the slot in the
flanged washer and gear head.

7. Install the blade nut by turning it counterclockwise (left
handed threads).

8. Tighten the blade nut securely and torque to 120 in.lbs.
minimum (finger tight plus 1/2 turn).

GEAR HEAD

BRUSHCUTTER

GUARD

SLOT

GEAR HEAD

SLOT

CUPPED

WASHER

FLANGED WASHER

LOOSEN

FLANGED WASHER

BLADE NUT

STRING HEAD

ASSEMBLY

TIGHTEN

Fig. 13

Fig. 14

Page 14

OPERATION

FUELING AND REFUELING THE TRIMMER

FUEL MIXTURE

This product is powered by a 2-cycle engine and requires pre­mixing gasoline and 2-cycle oil. Pre-mix unleaded gasoline
and 2-cycle engine oil in a clean 1 gallon container approved
for gasoline.

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).

Do not use automotive oil or 2-cycle outboard oil.
DO NOT mix quantities larger than usable in a 30 day

period.

HIGH QUALITY 2-CYCLE ENGINE OIL

GASOLINE

1 gallon (US) 2.6 oz.
1 Liter 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.

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.

OIL

WARNING:

To avoid burns from hot surfaces, never operate unit with
the bottom of the engine above waist level.

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.

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 damage from
overheating. If grass becomes wrapped around the string
head, STOP THE ENGINE, disconnect the spark plug wire,
and remove the grass. Prolonged cutting at partial throttle
will result in oil dripping from the muffler.

OPERATING THE

CURVED SHAFT

TRIMMER

WARNING:

Always shut off engine before fueling. Never add fuel to
a machine with a running or hot engine. Move at least
30 ft. (9 m) from refueling site before starting engine. Do
not smoke!

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.

OPERATING THE

STRAIGHT SHAFT

TRIMMER

Fig. 15

Page 15

OPERATION

TO ADVANCE THE CUTTING LINE

String advance is controlled by tapping the string head on
grass while running engine at full throttle.

1. Run engine at full throttle.

2. Tap the 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.

CUTTING TIPS

See฀Figures฀16฀-17.

n Keep the trimmer tilted toward the area being cut; this is

the best cutting area.

n 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 throwing debris at

the operator. Avoid cutting in the dangerous area shown
in illustration.

n Use the tip of string to do the cutting;฀do not force string

head into uncut grass.

n Wire and picket fences cause extra string wear, even

breakage. Stone and brick walls, curbs, and wood may
wear string rapidly.

n Avoid trees and shrubs. Tree bark, wood moldings, siding,

and fence posts can easily be damaged by the string.

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

DANGEROUS

CUTTING AREA

STRAIGHT SHAFT TRIMMER

DIRECTION OF

ROTATION

STRAIGHT SHAFT

TRIMMER LINE TRIMMING

CUT-OFF BLADE

BEST CUTTING

AREA

BEST CUTTING

AREA

CURVED SHAFT TRIMMER

LINE TRIMMING CUT-OFF

DIRECTION OF

ROTATION

Fig. 16

DANGEROUS

CUTTING AREA

Fig. 17

BLADE

Page 16

Fig. 18

OPERATION

OPERATING THE BRUSHCUTTER

See฀Figures฀19฀-฀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 rear 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.฀

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.

Fig. 19

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.

TRI-ARC® BLADE

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 the Tri-Arc®
blade.

Use only Tri-Arc® blade, part number AP04105, available at
your local retailer.

CUTTING TECHNIQUE - 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.

n Always hold brushcutter on your right side with both hands

when operating. Use a firm grip on both handles.

n 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.

n Inspect and clear the area of any hidden objects such as

glass, rocks, concrete, fencing, wire, wood, metal, etc.

n Never use blades near sidewalks, fencing, posts, buildings

or other immovable objects.

n Never use a blade after hitting a hard object without first

inspecting it for damage. Do not use if any damage is
detected.

n The unit is used as a scythe, cutting from the right to the

left in a broad sweeping action from side to side.

n Use only the Tri-Arc® blade. To install any other brand

blade or cutting head to this brushcutter can result in seri­ous personal injury.

DIRECTION OF ROTATION

WARNING:

To avoid burns from hot surfaces, never operate unit with
the bottom of the engine above waist level.

Page 17

CUTTING AREA

Fig. 20

OPERATION

STARTING AND STOPPING

See฀Figures฀21฀-฀23.

TO START A COLD ENGINE:
DO NOT squeeze the throttle trigger until the engine starts

and runs.

n Lay the trimmer on a flat, bare surface.฀

n PRIME - Press the primer bulb 7 times.
n SET the start lever to the START position.
n PULL the rope until the engine starts.
n Allow the engine to run for 15 seconds.
n Squeeze trigger lock and throttle trigger.

NOTE: Squeezing the throttle trigger releases the start lever
to the RUN position.

TO START A WARM ENGINE:
PULL the rope until the engine starts.

IGNITION

SWITCH

PRIMER BULB

TRIGGER

LOCK

TO STOP THE ENGINE:

Press and hold the switch in the stop “
engine stops.

THROTTLE

TRIGGER

฀” position until the

IGNITION

SWITCH

TRIGGER

LOCK

Fig. 21

THROTTLE TRIGGER

Fig. 22

START LEVER

START

POSITION

START LEVER

Page 18

RUN

POSITION

Fig. 23

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.

You can often make adjustments and repairs described here.
For other repairs, have the trimmer serviced by an authorized
service dealer.

SPOOL REPLACEMENT

NEW PREWOUND SPOOL

See฀Figures฀24฀-฀25.

If replacing string only, refer to “String Replacement” later
in this manual.

Use only
replacement string for best performance.

String Diameter:

CS30 - .080 in. (2.0 mm)
SS30 - .095 in. (2.4 mm)
BC30 - .095 in. (2.4 mm)

1. Stop the engine, disconnect the spark plug wire. Hold the

To remove the spool retainer:
Turn the spool retainer counterclockwise for models

Turn the spool retainer clockwise for models SS30 and

2. Remove the empty spool from the string head. Keep the

3. To install the new spool, make sure the two strings are

4. Thread the strings into the eyelets in the string head.

5. Push down and turn the spool counterclockwise฀until it no

monofilament string. Use original manufacturer's

string head and unscrew the spool retainer.

CS30.

BC30.

spring attached to the spool.

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.

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.

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.

SPOOL

RETAINER

SPRING

SLOTS

EYELETS

STRING HEAD

SHAFT

6. Make sure the string head and the spool retainer are
installed on the drive shaft.

To install the spool retainer:

Turn the spool retainer clockwise for models CS30.
Turn the spool retainer counterclockwise for models SS30

and BC30.

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.

Fig. 24

Fig. 25

Page 19

MAINTENANCE

STRING REPLACEMENT

See฀Figures฀26฀-฀28.

Use only monofilament string. Use original manufacturer's
replacement string for best performance.

String Diameter:

CS30 - .080 in. (2.0 mm)
SS30 - .095 in. (2.4 mm)
BC30 - .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

CS30.

Turn the spool retainer clockwise for models SS30 and

BC30.

2. Remove the spool from the string head.

฀฀฀฀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.

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

t least 1/4 in. (6 mm) bet

a
outside edge of the 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.

ween the wound string and the

SPRING

FIRST STRING

FIRST STRING

SLOT

SLOT

SPOOL

ARROWS ON

SPOOL

ANCHOR

HOLE

Fig. 26

SECOND

STRING

Fig. 27

ARROWS ON

SPOOL

Page 20

Fig. 28

MAINTENANCE

CLEANING THE EXHAUST PORT AND
MUFFLER

NOTE: Depending on the type of fuel used, the type and

amount of oil used, and/or your operating conditions, the
exhaust port, muffler, and/or spark arrestor screen may be­come blocked with carbon deposits. If you notice a power loss
with your gas powered tool, you may need to remove these
deposits to restore performance. We highly recommended
that only qualified service technicians perform this service.

SPARK ARRESTOR

The spark arrestor must be cleaned or replaced every 25
hours or yearly to ensure proper performance of your product.
Spark arrestors may be in different locations depending on
the model purchased. Please contact your nearest service
dealer for the location of the spark arrestor for your model.

REPLACING AND CLEANING AIR FILTER

See฀Figures฀29฀-฀30.

For proper performance and long life, keep air filter clean.

1. Remove the air filter cover by turning the knob
counterclockwise while gently pulling on the cover.

2. Remove the air filter, clean it in warm soapy water. Rinse
and let dry completely. For best performance, replace
annually.

3. Install the air filter. Align and install the air filter cover on
the air filter base. Secure the air filter cover by turning
the knob clockwise.

AIR FILTER COVER

KNOB

Fig. 29

AIR FILTER

BASE

AIR FILTER

Page 21

AIR FILTER

COVER

Fig. 30

MAINTENANCE

FUEL CAP

WARNING:

A leaking fuel cap is a fire hazard and must be replaced
immediately.

The fuel cap contains a non-serviceable filter and a check
valve. A clogged fuel filter will cause poor engine perfor­mance. If performance improves when the fuel cap is loos­ened, check valve may be faulty or filter clogged. Replace
fuel cap if required.

SPARK PLUG

This engine uses a Champion RCJ-6Y or NGK BPMR7A
spark plug with 0,63 mm (.025 in.) electrode gap. Use an
exact replacement and replace annually.

STORAGE (1 MONTH OR LONGER)

1. Drain all fuel from tank into a container approved for
gasoline. Run engine until it stops.

2. Clean all foreign material from the trimmer. Store it in a
well-ventilated place that is inaccessible to children. Keep
away from corrosive agents such as garden chemicals
and de-icing salts.

3. Abide by all ISO and local regulations for the safe storage
and handling of gasoline. Excess fuel should be used up
in other 2-cycle engine powered equipment.

Page 22

TROUBLESHOOTING

IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM CONTACT YOUR AUTHORIZED SERVICE DEALER.

PROBLEM POSSIBLE CAUSE SOLUTION

Engine will not start:

Engine does not reach full
speed and emits excessive
smoke:

Engine starts, runs, and ac­celerates but will not idle:

1. No spark.

2. No fuel.

3. Engine is flooded.

1. Incorrect oil/fuel mixture.

2. Air filter is dirty.

3. Spark arrestor screen is dirty.

4. Spark plug fouled.

1. Idle speed screw on carburetor
needs adjustment.

1. Check spark. Remove spark plug. Reattach the
spark plug cap and lay spark plug on metal cyl­inder. Pull the rope and watch for spark at spark
plug tip. If there is no spark, repeat test with a
new spark 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, proceed to
next item.

3. Squeeze the trigger and pull the rope repeatedly
until the engine starts and runs.

NOTE: Depending on the severity of the flooding,

this may require numerous pulls of the rope.

1. Use fresh fuel and the correct 2-cycle oil mix.
(50:1).

2. Clean air filter. Refer to “Replacing and Cleaning
Air Filter” earlier in this manual.

3. Contact a servicing dealer.

4. Clean or replace spark plug. Reset spark plug
gap. Refer to “Spark Plug Replacement” earlier
in this manual.

1. Turn idle speed screw clockwise to increase idle
speed. See Figure 31.

String will not advance:

1. String is welded to itself.

2. Not enough string on spool.

3. String is worn too short.

4. String is tangled on spool.

5. Engine speed is too slow.

IDLE SPEED

SCREW

Fig. 31

1. Lubricate string with silicone spray.

2. Install more string. Refer to “String Replacement”
earlier in this manual.

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.

Page 23

C

AL

L

1

-

8

0

0

-

8

6

0

-

4

0

5

0

For any questions about operating or maintaining your trimmer, or brushcutte

r

call the Ryobi Help Line !

Your trimmer has been fully tested prior to shipment to ensure

your complete satisfaction.

Troubleshooting tips are also available in this operator's manual.

CALL US FIRST

®

TROUBLESHOOTING

IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM CONTACT YOUR AUTHORIZED SERVICE DEALER.

PROBLEM POSSIBLE CAUSE SOLUTION

Spool retainer hard to turn:

Grass wraps around
driveshaft housing and string
head:

1. Screw threads are dirty or
damaged.

1. Cutting tall grass at ground level.

2. Operating trimmer at part
throttle.

1. Clean threads and lubricate with grease - if no
improvement, replace the spool retainer.

1. Cut tall grass from the top down to prevent
wrapping.

2. Operate trimmer at full throttle.

Page 24

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 Ryobi Technologies 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 two years of engine use from the date of sale to the ultimate purchaser. Ryobi Technologies 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, Ryobi Technologies 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'S WARRANTY COVERAGE:

The 1995 and later small off road engines are warranted for two years in California. In other states, 1997 and later model year nonroad
engines are also warranted for two years. 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'S WARRANTY 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. Ryobi Technologies 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 Ryobi Technologies 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:

Ryobi Technologies 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. Ryobi Technologies 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 two years. The 1995 and later small off
road engines are warranted for two years in California. In all other states for 1997 and later model years, EPA requires manufacturers to
warrant non-road engines for two years. 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 par t 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. Ryobi Tech­nologies 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 Ryobi Technologies 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 re-

placement point.

Page 25

NOTES

Page 26

WARRANTY

EMISSIONS MAINTENANCE SCHEDULE AND WARRANTED PARTS LIST
Emissions Parts Inspect Before Clean Every Replace Every

Each Use 5 Hours 25 Hours or Yearly

AIR FILTER ASSY

INCLUDES:

FILTER.................................................................................................. X ............................................X

CARBURETOR ASSY

INCLUDES:
HEAT DAM
GASKETS

FUEL TANK ASSY

INCLUDES:

FUEL LINES ..............................................X

FUEL CAP .................................................X

FUEL FILTER

IGNITION ASSY

INCLUDES:

SPARK PLUG....................................................................................................................................... X

ALL EMISSIONS - RELATED PARTS ARE WARRANTED FOR TWO YEARS OR FOR THE PERIOD OF TIME
PRIOR TO THE PARTS FIRST SCHEDULED REPLACEMENT WHICH EVER COMES FIRST.

Page 27

OPERATOR'S MANUAL

30cc String Trimmers and Brushcutters
RY30000 Series

• 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 rerope 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

983000-451

6-04

RYOBI TECHNOLOGIES INC.

1428 Pearman Dairy Road Anderson, SC 29625
Post Office Box 1207 Anderson, SC 29622

Phone [phone]