OPERA TOR "S MA NUA L

THANK YOU

Thank you for buying this quality product. This modern outdoor power tool will provide many hours of useful service. You will find it to be a great labor-saving device.

This operator's manual provides you with easy-tounderstand operating instructions.

Read the whole manual and follow all the instructions to keep your new outdoor power tool in top operating condition.

PRODUCT REFERENCES, ILLUSTRATIONS

SPECIFICATIONS

AND

All information, illustrations and specifications in this manual are based on the latest product information available at the time of printing. We reserve the right to make changes at any time without notice.

Copyright © 2003 MTD SOUTHWEST INC

All Rights Reserved.

SpeedSpool ® is a registered trademark of MTD

SOUTHWEST INC.

SERVICE INFORMATION

Service on this unit both within and after the warranty period should be performed only by an authorized and approved service dealer.

• Call 1-800-345-8746 in the United States. or

1-800-668-1238 in Canada, to obtain a list of authorized service dealers near you

Or

• Go to www.RyobiOutdoor.com on the World Wide

Web for a list of authorized service dealers

DO NOT RETURN THE UNIT TO THE RETAILER.

NOTE: PROOF OF PURCHASE WILL BE REQUIRED

FOR WARRANTY SERVICE.

Make sure you carefully read and understood this manual before starting or operating this equipment.

THIS PRODUCT IS COVERED BY ONE OR MORE US

PATENTS, OTHER PATENTS PENDING.

I, California Proposition 65 Warning: ...............

II.

Rules for Safe Operation .....................

A. Important Safety Information .................

B. Safety and International Symbols .............

C. Know Your Unit ...........................

III.

Assembly Instructions ........................

A. Installing and Adjusting the J-Handle ..........

B. Installing the Cutting Attachment Shield ........

IV, Oil and Fuel Information .......................

V, Starting/Stopping Instructions .................

Vl.

Operating Instructions

A. Operating the EZ-Link

....................

TM

System .............

B, Holding the Trimmer ......................

C. Adjusting Trimming Line Length .............

D, Tips for Best Trimming Results ..............

E, Decorative Trimming ......................

10

11-12

11

12

12

12

12

8

8

8

9

3

3-7

4

5

7

VII.

Maintenance and Repair Instructions .........

A, Maintenance Schedule ....................

B, Line Installation .........................

C, Installing a Prewound Reel .................

D. Cleaning the SpeedSpool ® .................

E, SpeedSpool ® Replacement Parts ............

F, Air Filter Maintenance .....................

G, Spark Arrestor Maintenance .................

H, Carburetor Adjustment ....................

I.

Replacing the Spark Plug ..................

J. Cleaning ................................

K, Storage ................................

L. Long Term Storage .......................

M, Transporting ..............................

N, Accessories/Replacement Parts .............

VIII.

Troubleshooting Chart .......................

IX.

Specifications ..............................

X.

Warranty ..................................

Xl.

Parts List ...........................

20

21

24

Back Cover

13-19

13

13

14

15

16

16

17

18

18

19

19

19

19

19

CONTENTS OF CARTON

• A Model 775r Trimmer

A J-Handle and Hardware

A Cutting Attachment Shield with Hardware

° SpeedSpool ® Bump Head Cutting Attachment

° Operator's Manual

° Product Registration Card

° Bottle of 2-Cycle Oil

A This item will either be installed on the unit or in the hardware pack

2

THE ENGINE EXHAUST FROM THIS

PRODUCT CONTAINS CHEMICALS

KNOWN TO THE STATE OF CALIFORNIA

TO CAUSE CANCER, BIRTH DEFECTS

OR OTHER REPRODUCTIVE HARM.

NOTE: For users on U.S. Forest Land and in the states of California, Maine, Oregon and Washington. All U.S.

Forest Land and the state of California (Public Resources Codes 4442 and 4443), Oregon and Washington require, by

law that certain internal combustion engines operated on forest brush and/or grass-covered areas be equipped with a spark arrestor, maintained in effective working order, or the engine be constructed, equipped and maintained for the prevention of fire. Check with your state or local authorities for regulations pertaining to these requirements. Failure to follow these requirements could subject you to liability or a fine. This unit is factory equipped with a spark arrestor. If

it requires replacement, ask your LOCAL SERVICE DEALER to install the Accessory Part #182747 Spark Arrestor Kit.

Read the Operator's Manual(s) and follow all warnings and safety instructions.

Failure to do so can result in serious injury to the operator and/or bystanders.

FOR QUESTIONS, CALL 1-800-345-8746 IN U.S.

OR 1-800-668-1238 in CANADA

The purpose of safety symbols isto attract your attention to possible dangers. The safety symbols, and their explanations, deserve your careful attention and understandingl The safety warnings do not by themselves eliminate any danger: The instructions or warnings they give are not substitutes for proper accident prevention measuresl

SYMBOL MEANING

SAFETY ALERT SYMBOL: Indicates danger, warning or caution.

Attention is required in order to avoid serious personal injury. Maybe used in conjunction with other symbols or pictographs.

NOTE:Advises you of information or instructions vital to equipment.

the operation or maintenance of the

SYMBOLMEANING

DANGER: Failure to obey a safety warning I will result in serious injury to yourself or to I others: Always follow the safety I precautions to reduce the risk of fire, I electric shock and personal injury.

J

WARNING: Failure to obey a safety

warning can result in injury to yourself and others. Always follow the safety precautions to reduce the risk of f re.

electric shock and personal injury.

CAUTION: Failure to obey a safety warning may result in property damage or personal injury to yourself or to others.

Always follow the safety precautions to reduce the risk of fire, electric shock and personal injury.

¸¸¸¸¸¸¸¸¸¸3

• IMPORTANT SAFETY INFORMATION •

READ ALL INSTRUCTIONS

WARNING: When using the unit, you must I follow the safety rules. For your own safety[ and that of bystanders, please read these instructions before operating the unit.

Please keep the instructions for later use. ]

I

BEFORE OPERATING

• Read the instructions carefully. Be familiar with the controls and proper use of the unit.

• Do not operate this unit when tired, ill or under the influence of alcohol, drugs or medication.

• Children under the age of 15 must not use the unit; teens may operate the unit with adult guidance.

• Inspect the unit before use. Replace damaged parts.

Check for fuel leaks. Make sure all fasteners are in place and secure. Replace cutting attachment parts that are cracked, chipped or damaged in any way.

Make sure the cutting attachment is properly installed and securely fastened. Be sure that the cutting attachment shield is properly attached, and positioned as recommended.

Failure to do so can result in personal injury to the operator and bystanders, as well as damage to the unit.

• Use only 0.080 inch (2.03 mm) diameter Genuine

Factory Parts

TM replacement line. Never use metalreinforced line, wire, chain or rope. These can break off and become dangerous projectiles.

• Be aware of risk of injury to the head, hands and feet.

• Clear the area to be cut before each use. Remove rocks, broken glass, nails, wire, string and other objects which may be thrown or become entangled in the cutting attachment.

Clear the area of children, bystanders and pets; keep them outside a 50-foot

(15 m.) radius, at a minimum. Even then, they are still at risk from thrown objects. Encourage bystanders to wear eye protection.

If you are approached, stop the unit immediately.

• Squeeze the throttle control and check that it returns automatically to the idle position. Make all adjustments or repairs before using the unit.

• This unit was not designed to be used as a brushcutter.

Do not attach or operate this unit with any type of brushcutting blade or brushcutting attachment.

SAFETY WARNINGS FOR GAS TRIMMERS

WARNING: Gasoline is highly flammable, [ and its vapors can explode if ignited. Take I the following precautions.

J

Store fuel only in containers specifically designed and approved for the storage of such materials.

Always stop the engine and allow it to cool before filling the fuel tank. Never remove the fuel tank cap or add fuel when the engine is hot. Never operate the unit without the fuel cap securely in place. Loosen the fuel tank cap slowly to relieve any pressure in the tank.

Add fuel in a clean, well-ventilated outdoor area where there are no sparks or flames. Remove the fuel cap slowly, and only after the engine stops. Do not smoke while fueling or mixing fuel. Wipe up any spilled fuel from the unit immediately.

Avoid creating a source of ignition for spilled fuel. Do not start the engine until fuel vapors dissipate.

Move the unit at least 30 feet (9.1 m) from the fueling source and site before starting the engine. Do not smoke. Keep sparks and open flames away from the area while adding fuel or operating the unit.

WHILE OPERATING

Never start or run the unit inside a closed room or building.

Breathing exhaust fumes can be fatal.

Operate this unit only in a well-ventilated outdoor area.

Wear safety glasses or goggles that meet ANSI Z87.1

standards and are marked as such. Wear ear/hearing protection when operating this unit. Wear a face or dust mask if the operation is dusty.

Wear heavy long pants, boots, gloves and a long sleeve shirt. Do not wear loose clothing, jewelry, short pants, sandals or go barefoot. Secure hair above shoulder level.

The cutting attachment shield must always be in place while operating the unit. Do not operate unit without both trimming lines extended, and the proper line installed. Do not extend the trimming line beyond the length of the shield.

This unit has a clutch. The cutting attachment remains stationary when the engine is idling. If it does not, have the unit adjusted by an authorized service technician.

Adjust the J-handle to your size in order to provide the best grip.

Be sure the cutting attachment is not in contact with anything before starting the unit.

Use the unit only in daylight or good artificial light.

Avoid accidental starting. Be in the starting position whenever pulling the starter rope. The operator and unit must be in a stable position while starting. Refer to Starting/Stopping Instructions.

Use the right tool. Only use this tool for its intended purpose.

4 ZZZZZZ

• Do not overreach. Always keep proper footing and balance.

• Always hold the unit with both hands when operating.

Keep a firm grip on both handles or grips.

• Keep hands, face, and feet at a distance from all moving parts. Do not touch or try to stop the cutting attachment when it rotates.

° Do not touch the engine, gear housing or muffler.

These parts get extremely hot from operation, even after the unit is turned off.

• Do not operate the engine faster than the speed needed to cut, trim or edge. Do not run the engine at high speed when not cutting.

• Always stop the engine when cutting is delayed or when walking from one cutting location to another.

• If you strike or become entangled with a foreign object, stop the engine immediately and check for damage. Do not operate before repairing damage. Do not operate the unit with loose or damaged parts.

• Stop the unit, switch the engine to off, and disconnect the spark plug for maintenance or repair.

• Use only Genuine Factory Parts

TM replacement parts and accessories for this unit. These are available from your authorized service dealer. Use of any unauthorized parts or accessories could lead to serious injury to the user, or damage to the unit, and void your warranty.

° Keep unit clean of vegetation and other materials.

They may become lodged between the cutting attachment and shield.

• To reduce fire hazard, replace a faulty muffler and spark arrestor. Keep the engine and muffler free from grass, leaves, excessive grease or carbon build up

OTHER SAFETY WARNINGS

• Never store a fueled unit inside a building where fumes may reach an open flame or spark.

* Allow the engine to cool before storing or transporting.

Be sure to secure the unit while transporting.

• Store the unit in a dry area, locked up or up high to prevent unauthorized use or damage, out of the reach of children.

Never douse or squirt the unit with water or any other liquid. Keep handles dry, clean and free from debris.

Clean after each use, see Cleaning and Storage instructions.

• Keep these instructions.

Refer to them often and use them to instruct other users. If you loan someone this unit, also loan them these instructions.

SAVE THESE INSTRUCTIONS

SAFETY AND INTERNATIONAL SYMBOLS

This operator's manual describes safety and international symbols and pictographs that may appear on this product,

Read the operator!s

manual for complete safety, assembly, operating and maintenance and repair information.

SYMBOL MEANING SYMBOL MEANING

Indicates danger, warning or caution.

• SAFETY ALERT SYMBOL symbols or pictographs.

/

-//_7_

_/_'_

• THROWN OBJECTS AND

ROTATING CUTTER CAN

CAUSE SEVERE INJURY

WARNING: Do not operate without the cutting attachment shield in place.

Keep away from the rotating cutting attachment.

• WARNING - READ

OPERATOR'S MANUAL

Read the operator's manual(s) and follow all warnings and safety instructions.

Failure to do so can result in serious injury to the operator and/or bystanders.

I • ON/OFF STOP

ON / START / RUN

CONTROL

• WEAR EYE AND HEARING

PROTECTION

WARNING: Thrown objects and loud noise can cause severe eye injury and hearing loss. Wear eye protection meeting ANSI Z87.1 standards and ear protection when operating this unit.

Use a full face shield when needed.

O • ON/OFF STOP CONTROL

OFF or STOP

• HOT SURFACE WARNING

Do not touch a hot muffler, gear housing or cylinder. You may get burned. These parts get extremely hot from operation.

They remain hot for a short time after the unit is turned off.

• KEEP BYSTANDERS AWAY

WARNING: Keep all bystanders, especially children and pets, at least

50 feet (15 m) from the operating area.

• SHARP BLADE

WARNING: Sharp blade on cutting attachment shield. To prevent serious injury, do not touch line cutting blade.

• UNLEADED FUEL

Always use clean, fresh unleaded fuel.

• OIL

Refer to operator's manual for the proper type of oil.

APPLICATIONS

Asa trimmer:

• Cuttinggrassandlightweeds

• Edging

• Decorative trimming around trees, fences, etc.

Fuel Cap

Starter Rope Grip

maybe usedwiththe775r:

Seealist of add-onsinthe

Operating the EZ.Link "M

System section.

On/Off Stop Control

Spark Plug

Shaft Grip

Throttle

Control

EZ-Start

Lever

J-Handle

EZ-Link TM

Air Filter/Muffler

Cover

Shaft

Housing

Primer Bulb

Cutting Attachment

Shield

Muffler

Line Cutting Blade

Cutting Attachment

¸¸¸¸¸¸¸¸¸¸7

On some units, the J-handle may be pre-installed.

In this case you must loosen screws and adjust the handle to fit the operator. Go to step 5 if the J-handle is pre-installed.

INSTALLING AND ADJUSTING THE J-HANDLE

.

Place the J-handle between the top and middle clamp pieces (Fig. 1).

(4)

/

J-Handle

Top Clamp

Middle Clamp

Bottom Clamp

Nuts _

Fig. 1 e

2.

While holding the three pieces together, install the four

(4) screws through the top clamp and into middle clamp.

NOTE: The holes in the top and middle clamp will line up only when assembled correctly.

.

Place the clamps and J-handle the over the shaft housing and onto the bottom clamp.

4.

Hold each hex nut in the bottom clamp recess with a finger. Start screws with a large Phillips screwdriver.

Do not tighten until you make the handle adjustment.

5.

Slide the J-handle in or out until the arrow/white line on the decal touches the clamp assembly (Fig. 2). You must first loosen the screws if the handle is pre-installed.

INSTALLING THE CUTTING ATTACHMENT SHIELD

Use the following instructions if the cutting attachment shield on your unit is not installed or if you ever need to re-install it.

WARNING:Never operate the trimmer without the cutting attachment shield in place to prevent serious personal injury. J

!

.

Slide the cutting attachment shield into the shield mount on the cutting attachment. Align the screw holes in the shield with the holes in the cutting attachment (Fig. 4).

Shaft Housing

Cutting Attachment

Shield

Shield Mount

Cutting Attachment

.

Fig. 4

Place a hex lock nut into one of the three recessed holes on the top of the cutting attachment shield (Fig 5).

Cutting Attachment

Shield

Fig. 2

6: While holding the unit in the operating position (Fig. 3), position the J-handle to the location that provides you the best grip.

Fig. 5

3.

Install a screw into the hole from the bottom of the cutting attachment shield and screw it into the nut installed in step 2 (Fig 6). Do not tighten.

4.

Repeat steps 2 and 3 until all three screws have been started, then tighten securely.

Fig, 3

7. Tighten the clamp screws evenly, until the J,handle

IS secure.

8

Fig. 6

OIL AND FUEL MIXING INSTRUCTIONS

Old and/or improperly mixed fuel are the main reasons for the unit not running properly. Be sure to use fresh, clean unleaded fuel. Follow the instructions carefully for the proper fuel/oil mixture.

Definition of Blended Fuels

Today's fuels are often a blend of gasoline and oxygenates such as ethanol, methanol, or MTBE (ether).

Alcohol-blended fuel absorbs water. As little as 1% water in the fuel can make fuel and oil separate. It forms acids when stored. When using alcohol-blended fuel, use fresh fuel (less than 60 days old).

Using Blended Fuels

If you choose to use a blended fuel, or its use is unavoidable, follow recommended precautions:

• Always use the fresh fuel mix explained in your operator's manual

° Always agitate the fuel mix before fueling the unit

• Drain the tank and run the engine dry before storing the unit

Using Fuel Additives

The bottle of 2-cycle oil that came with your unit contains a fuel additive which will help inhibit corrosion and minimize the formation of gum deposits. It is recommended that you use our 2-cycle oil with this unit.

If unavailable, use a good 2-cycle oil designed for air-cooled engines along with a fuel additive, such as

STA-BIL _ Gas Stabilizer or an equivalent. Add 0.8 oz.

(23 ml.) of fuel additive per gallon of fuel according to the instructions on the container.

NEVER add fuel additives directly to the unit's fuel tank.

CAUTION: For proper engine operation and maximum reliability, pay strict attention to the oil and fuel mixing instructions on the

2-cycle oil container. Using improperly mixed fue can severe y damage the engine. J

I

Thoroughly mix the proper ratio of 2-cycle engine oil with unleaded gasoline in a separate fuel can. Use a 40:1 fuel/oil ratio. Do not mix them directly in the engine fuel tank. See the table below for specific gas and oil mixing ratios.

NOTE: One gallon (3.8 liters) of unleaded gasoline mixed with one 3.2 oz. (95 ml.) bottle of

2-cycle oil makes a 40:1 fuel/oil ratio.

UNLEADED GAS

MIXING

2 CYCLE OIL

1 US. GALLON + 3.2 FL. OZ.

(3.8 LITERS) (95 ml)

1 LITER + 25 ml

RATIO - 40:1

WARNING: Gasoline is extremely flammable.

Ignited Vapors may explode.

Always stop the engine and allow it to cool before filling the fuel tank. Do not smoke while filling the tank. Keep sparks and open flames at a distance from the area.

WARNING: Remove fuel cap slowly to avoid injury from fuel spray. Never operate the unit without the fuel cap securely in place.

WARNING: Add fuel in a clean, well ventilated area outdoors.

Wipe up any spilled fuel immediately.

Avoid creating a source of ignition for spilt fuel. Do not start the engine until fuel vapors dissipate.

NOTE: Dispose of the old fuel/oil mix in accordance to

Federal, State and Local regulations.

I

ventilated outdoor area. Carbon monoxide exhaust

ARNING: Operate this unit only in a well-

WARNING: Avoid accidental starting.

Make sure you are in the starting position when pulling the starter rope (Fig. 9). To avoid serious injury, the operator and unit must be in a stable position while starting.

To avoid serious personal injury, ensure any

Add-On being used is installed correctly and secure before starting unit.

STARTING INSTRUCTIONS

....................

You are starting a warm engine, begin at step 4.

1.

Mix gas with oil. Fill fuel tank with fuel/oil mixture.

See Oil and Fuel Mixing Instructions. iii i1_ iii i i_ i!!

I_

2.

Put the On/Off Stop Control in the ON (I) position

(Fig. 7).

Fully press and release the primer bulb 10 times, slowly, until FUEL IS VISIBLE IN THE PRIMER

BULB (Fig. 8). If you can't see fuel in the bulb, press and release the bulb as many times as it takes before you can see fuel in it.

Push the EZ-Start

TM

Lever to the left until it clicks and locks into place (Fig. 8).

_

SQUEEZE THE THROTTLE CONTROL (Fig. 9). Pull the starter rope 5 times briskly, making sure the

EZ-Start

TM lever is pushed to the left.

....... 5.

With the unit in the starting position, DO NOT

.....IF... The engine does not start, go back to step 3.

iii "_

IF...

The engine starts to run before the fifth pull, go to step 6.

IF...

The outside temperature or engine temperature exceeds 90 ° F and the engine fails to start after 5 pulls, fully squeeze the throttle control and pull the starter rope briskly 3 to 8 more times. The engine should start within these pulls.

NOTE: When starting, the EZ-Start

TM

Lever will automatically click off when you squeeze the throttle control.

..............

When the engine starts, squeeze the throttle control to warm up the engine for 5 to 10 seconds. The EZ-

Start

TM

Lever will click off automatically (Fig. 8).

IF... The engine stalls while squeezing the throttle, go back to step 4.

STOPPING INSTRUCTIONS

1.

Release your hand from the throttle control (Fig. 9). Allow the engine to cool down by idling.

2.

Put the On/Off Stop Control in the OFF (O) position (Fig. 7).

10 control, hold the throttle control and pull the starter rope until the trimmer starts.

Stop/_f (O).

Fig. 7

Primer

Bulb

Starter Rope

Fig. 8

Throttle Control S'

Fig. 9

Start/On (I)

\

Lever

OPERATING THE EZ-LINK

TM

SYSTEM

The EZ-Link

TM system enables the use of these optional

Add-Ons:

Blower/Vacuum ..........................

Cultivator ..............................

BV720r

GC720r

Edger ..................................

Hedge Trimmer ..........................

Snow Thrower ...........................

Straight Shaft Trimmer ....................

Tree Pruner .............................

Turbo Blower ............................

LE720r

HS720r

ST720r

SS725r

TP720r

TB720r

WARNING:Read and understand the operator's manual for each add:on prior to operation.

I

Removing the Cutting Attachment or Add-Ons

1.

Turn the knob counterclockwise to loosen (Fig. 10).

2.

Press and hold the release button (Fig. 10).

3.

While firmly holding the upper shaft housing, pull the cutting attachment or add-on straight out of the

EZ-LinM M coupler (Fig. 11).

I

WARNING: To avoid serious personal injury I and damage to the unit, shut off the unit before removing or installing add,ons. ]

Installing the Cutting Attachment or Add-On

NOTE: Place the unit on the ground or on a work bench to make add-on installation or removal easier.

1.

Turn knob counterclockwise to loosen.

2.

While firmly holding the add-on, push it straight into the EZ-LinM M coupler (Fig. 11).

NOTE: Aligning the release button with the guide recess will help installation (Fig. 10).

EZ.Link

TM

Coupler Hole

Release Button

Fig. 11

.

Turn the knob clockwise to tighten (Fig. 12).

CAUTION: Lock the release button in the primary hole and securely tighten the knob before operat ng th sun t

90° Edging Hole

(Trimmer Only)

_-_

L

Fig. 12

/

/

180° Edging Hole

(Trimmer Only)

CAUTION: The cutting attachment and addons with the EZ-Link

TM system are to be used in the primary hole unless stated otherwise in the specific add-ons operator's manual. Using the wrong hole could lead to personal injury or damage to the unit.

For edging (when using the line head cutting attachment with EZ-Link

TM models), lock the release button of the cutting attachment into the 90 ° edging hole or the 180 ° edging hole (Fig. 12).

J

Fig. 10

Guide Recess

11

HOLDING THE TRIMMER

WARNING: Always wear eye, hearing; foot and body protection to reduce the risk of injury when operating this unit.

Before operating the unit, stand in the operating position

(Fig. 13). Check for the following:

° The operator is wearing eye protection and proper clothing

• With a slightly-bent right arm, the operator's right hand is holding the shaft grip

• The operator's left arm is straight, the left hand holding the J-handle

° The unit is at waist level

• The cutting attachment is parallel to the ground and easily contacts the grass without the need to bend over

Fig. 13

ADJUSTING TRIMMING LINE LENGTH

The Bump Head

TM cutting attachment allows you to release trimming line without stopping the engine. To release more line, lightly tap the cutting attachment on the ground (Fig. 14) while operating the trimmer at high speed.

NOTE: Always keep the trimming line fully extended.

Line release becomes more difficult as cutting line becomes shorter

NOTE: Do not rest the Bump Head

TM on the ground while the unit is running.

CAUTION: Do not remove or alter the line cutting blade assembly. Excessive line length will make the clutch overheat. This may lead to serious personal injury or damage to the unit.

Some line breakage will occur from:

• Entanglement with foreign matter

° Normal line fatigue

° Attempting to cut thick, stalky weeds

° Forcing the line into objects such as walls or fence posts

TIPS FOR BEST TRIMMING RESULTS

• Keep the cutting attachment parallel to the ground.

° Do not force the cutting attachment. Allow the tip of the line to do the cutting, especially along walls. Cutting with more than the tip will reduce cutting efficiency and may overload the engine.

° Cut grass over 8 inches (200 mm) by working from top to bottom in small increments to avoid premature line wear or engine drag.

° Cut from right to left whenever possible. Cutting to the left improves the unit's cutting efficiency. Clippings are thrown away from the operator.

° Slowly move the trimmer into and out of the cutting area at the desired height. Move either in a forwardbackward or side-to-side motion.

Cutting shorter lengths produces the best results.

° Trim only when grass and weeds are dry.

° The life of your cutting line is dependent upon;

° Following the previous trimming techniques

° What vegetation is being cut

° Where it's being cut

For example, the line will wear faster when trimming against a foundation wall as opposed to trimming around a tree.

DECORATIVE TRIMMING

Decorative trimming is accomplished by removing all vegetation around trees, posts, fences, etc.

Rotate the whole unit so that the cutting attachment is at a 30 ° angle to the ground (Fig. 15).

Fig. 14

Each time the head is bumped, about 1 inch (25.4 mm) of trimming line releases. A blade in the cutting attachment shield will cut the line to the proper length if any excess line is released.

For best results, tap the bump knob on bare ground or hard soil. If you attempt a line release in tall grass, the engine may stall. Always keep the trimming line fully extended. Line release becomes more difficult when the cutting line gets shorter.

Fig. 15

MAINTENANCE SCHEDULE

Perform these required maintenance procedures at the frequency stated in the table. These procedures should also be a part of any seasonal tune-up.

NOTE: Some maintenance procedures may require special tools or skills. If you are unsure about these procedures take your unit to any non-road engine repair establishment, individual or authorized service dealer.

WARNING: To prevent serious injury'never perform maintenance or repairs with unit running. Always service and repair a cool unit. I

Disconnect the spark plug wire to ensure that I the unit cannot start.

J

NOTE: Maintenance, replacement, or repair of the emission control devices and system may be performed by any non-road engine repair establishment, individual or authorized service dealer.

In order to assure peak performance of your engine, inspection of the engine exhaust port may be necessary after 50 hours of operation. If you notice lost RPM, poor performance or general lack of acceleration, this service may be required. If you feel your engine is in need of this inspection, refer service to any non-road engine repair establishment, individual or authorized service dealer for repair. DO NOT attempt to perform this process yourself as engine damage may result from contaminants involved in the cleaning process for the port.

Before starting engine

Every 10 hours

Every 25 hours

....

Lvery bu nours

Fill fuel tank with fresh fuel

Clean and re-oil air filter

Check and clean spark arrestor

Check spark plug condition and gap

Inspect exhaust port and spark arrestor screen for clogging or

.........

ODS[ruc[Ion [o assure maximum penormance levels

LINE INSTALLATION FOR THE SPEEDSPOOL _

WARNING: Never use metal-reinforced line, wire, chain or ropel These can break off and become dangerous projectiles.

Always use Genuine Factory Parts

TM

0.080 inch

(2.03 mm) replacement line. Lines other than those specified may make the engine overheat or fail.

There are two methods to replace the SpeedSpool ® trimming line:

• Wind the inner reel with new line

• Install a pre-wound inner reel

Winding the Inner Reel With New Line

NOTE: It Is unnecessary to remove the bump knob to install a new trimming line.

1.

Cut two pieces of 0.080 inch (2.03 mm) trimming line, 10 feet (3 m) long.

2.

Hold the outer spool and turn the inner reel counterclockwise to line up the arrows on the outer spool and inner reel (Fig. 16).

I

J

Page 9

Page 16

Page 17

Page 18

_ _ vage

//

WARNING: Always use the correct line !

length when installing trimming line on the I unit, The line may not release properly if the I line is too long.

J

Top View Of The SpeedSpoor

Arrows

Outer Spool

Inner Reel

Fig. 16 p Knob

13

4.

.

Pull old line out of the line loading and line locking holes (Fig. 17 and 18).

Insert a piece of trimming line straight into one of the two eyelets in the outer spool. Push it up through the line loading hole in the inner reel (Fig. 17). Do not bend the line when inserting it into the eyelet.

Trimming Line

Eyelet

7.

Repeat procedures 4-6 with the second piece of line.

8.

Hold the outer spool. Wind the inner reel counterclockwise until approximately four (4) inches

(102 mm) of line remain (Fig. 20).

NOTE: Do not wind the inner reel before installing the second piece of line.

.

Line Loading Hole

Fig. 17

Insert the line into the locking hole (Fig. 18). Do not push the line more than a 1/2 inch (12.7 mm) into the line locking hole. The line will form a small loop

(Fig. 18) when it is inserted correctly.

Fig. 20

9.

If winding the line becomes difficult or if the line jams, pull the ends of the line from the spool

(Fig. 21). Continue winding the inner reel counterclockwise.

14

.

Line Locking Hole

Fig. 18

Pull the line from the outer spool until the line is tight against the inner reel (Fig. 19).

Fig. 21

INSTALLING A PRE-WOUND REEL

1.

Turn the bump knob counterclockwise and remove the bump knob, spring and foam seal (Fig. 22).

Bump Knob ---_

Foam Seal --_=

,nner

Fig. 22

Fig. 19

3.

.

Pull the old inner reel with existing line from the outer spool.

Insert the ends of the prewound inner reel line into the outer spool eyelets (Fig. 23). Push the new inner reel, arrow side up, into the outer spool.

.

Remove any existing line from the inner reel before cleaning. Remove any debris or grass from the knob, spring, inner reel and foam seal. Wash the inner reel with warm soapy water (Fig. 25).

Inner Reel

.

Fig. 23

Hold the inner reel in place and install the bump knob, spring and foam seal. Press down and turn the bump knob clockwise.

Grasp the ends and pull firmly to release the line from the holding slots in the inner reel (Fig. 22).

Releasing the Inner Reel

If the SpeedSpool ® does not release line correctly, pull the ends of the line firmly from the spool (Fig. 21). If this does not the release line, follow the Cleaning the

SpeedSpool _ instructions.

CLEANING THE SPEEDSPOOL ®

Cleaning the SpeedSpool ® may be necessary if:

° A jammed or excessive line must be removed

° The SpeedSpool ® becomes difficult to wind or does not operate correctly when bumping the head on the ground

1.

Hold the outer spool, and unscrew the bump knob counterclockwise (Fig. 24).

2.

Pull out the bump knob, spring and foam seal (Fig. 22).

.

Fig. 25

Clean the shaft and the inner surface of the outer spool. To clean the shaft underneath the plunger, press down on the plunger (Fig. 26). Remove any dirt or debris from the shaft.

Shaft

Fig. 26

NOTE: The inner reel must be totally dry before reinstalling it into the outer spool. Do not lubricate the inner reel or outer spool assembly.

6.

Place the inner reel into the outer spool.

7.

Place the bump knob, spring and foam seal into the inner reel (Fig. 22).

8.

Press the bump knob down and tighten clockwise.

9.

Install new line as described in Line Installation for the SpeedSpool e.

Fig. 24

3.

Pull the inner reel with existing line from the outer spool (Fig. 23).

Replacement Line ........................

Replacement Line Cartridge ................

Inner Reel Spring ........................

Foam Seal ..............................

Inner Reel ..............................

Bump Knob Assembly ....................

These SpeedSpool c_replacement parts can be purchased from your local authorized dealer.

181472

181460

181465

181467

181464

181468

15

16

AIR FILTER MAINTENANCE

Removing the Air Filter/Muffler Cover

WARNING: To avoid serious personal inJury, always turn your trim mer off and allow it to cool before you clean or service it.

.

Remove the four (4) screws securing the air filter/muffler cover (Fig. 27). Use a flat blade or

T20 Torx bit screwdriver.

2.

Pull the cover from the engine. Do not force.

4.

Apply enough clean SAE 30 oil to lightly coat the filter (Fig. 30).

5.

Squeeze the filter to spread and remove excess oil

(Fig 31).

J

/

Air Filter

Lever

Inside Muffler

Cover

Fig. 28

\

"-_ , ,,//

//

Fig. 29

[

[

\

\

\

I

I

I

I

I

I

I

I

I

I

/

/

I

I

I

J i!.

Fig. 27

Cleaning the Air Filter

Clean and re-oil the air filter every 10 hours of operation.

It is an important item to maintain. Failure to maintain the air filter will VOID the warranty.

1.

Remove air filter/muffler cover. Refer to Removing the Air Filter/Muffler Cover.

2.

Turn cover over and look inside to locate the air filter.

Remove the air filter from inside the air filter/muffler

.

cover (Fig. 28).

Wash the filter in detergent and water (Fig. 29). Rinse the filter thoroughly.

Squeeze out excess water. Allow it to dry completely.

Fig. 30 Fig. 31

6.

Replace the air filter inside the air filter/muffler cover

(Fig. 28).

NOTE: Operating the unit without the air filter and air filter/muffler cover assembly will VOID the warranty.

Reinstalling the Air Filter/Muffler Cover

1.

Place the air filter/muffler cover over the back of the carburetor and muffler. Align the screw holes.

2.

Insert the four (4) screws into the holes in the air filter/muffler cover (Fig. 27) and tighten.

Do not over tighten.

SPARK ARRESTOR MAINTENANCE

1.

Remove air filter/muffler cover. Refer to Removing the Air Filter/Muffler Cover.

.

.

Locate muffler front and the two (2) bolts securing it to the engine (Fig. 32). Remove the two (2) bolts using a flatblade screwdriver or 5/16-inch socket or nut driver. Pull muffler off of the engine.

Turn muffler over to the back side and locate the exhaust gasket. Remove the muffler gasket from the muffler (Fig. 32).

NOTE: If the exhaust gasket is torn or damaged, replace it with a new gasket before reassembling muffler.

4.

Using a small flatblade screwdriver, carefully pry up the spark arrestor from the recessed hole (Fig. 33).

Remove the spark arrestor from the muffler.

5.

Clean the spark arrestor with a wire brush. Replace it if it is damaged or if it is impossible to clean thoroughly (Fig. 33).

6.

Reinstall the spark arrestor by pressing it into the recessed hole on the muffler's back side. Make sure it fits tightly against the muffler and is not raised up.

7.

Place the exhaust gasket against muffler's back side.

Align the gasket bolt holes with the bolt holes in the muffler. While holding exhaust gasket in place, insert the bolts into the muffler's front side (Fig. 32).

8.

Place the muffler (with the exhaust gasket in place and bolts inserted), against the engine, aligning the bolt holes. Tighten the bolts to secure the muffler to the engine.

If using a torque wrench, torque to:

80-90 in.,Ib.

(9-10.2 Nom)

9.

Reinstall the air filter/muffler cover.

WARNING:If the muffler is not tightened securely, it could fall off causing damage to I the unit and possib e serious persona injury J

_B°lt

\

X

Spark

Arrestor

\

Exhaust

Gasket

Muffler - Front Side

Fig. 32

Muffler - Back Side

Spark

Arrestor

Screwdriver

Muffler - Back Side

Fig. 33

\

Spark Arrestor

17

CARBURETOR ADJUSTMENT

The idle speed of the engine is adjustable through the air filter/muffler cover (Fig. 34).

NOTE: Careless adjustments can seriously damage your unit. An authorized service dealer should make carburetor adjustments.

Check Fuel Mixture

Old and/or improperly mixed fuel is usually the reason for improper unit performance.

Drain and refill the tank with fresh, properly-mixed fuel prior to making any adjustments.

Refer to Oil and Fuel Information.

Clean Air Filter

The condition of the air filter is important to the operation of the unit. A dirty air filter will restrict air flow and change the air/fuel mixture. This is often mistaken for an out of adjustment carburetor.

Check the condition of the air filter before adjusting the idle speed screw. Refer to

Air Filter Maintenance.

Adjust Idle Speed Screw

If, after checking the fuel mixture and cleaning the air filter, the engine still will not idle, adjust the idle speee screw as follows:

1.

Start the engine and let it run at a high idle for a minute to warm up. Refer to Starting/Stopping

Instructions.

WARNING: The cutting attachment may spin during idle speed adjustments.

Wear protective clothing and observe all safety instructions to prevent serious personal injury.

2.

Release the throttle trigger and let the engine idle. If the engine stops, insert a small phillips or flat blade screwdriver into the hole in the air filter/muffler cover

(Fig. 34). Turn the idle speed screw in, clockwise,

1/8 of a turn at a time (as needed) until the engine idles smoothly.

|

Idle Speed Screw

NOTE: The cutting attachment should not rotate when the engine idles.

3.

If the cutting attachment rotates when the engine idles, turn the idle speed screw counterclockwise 1/8 of a turn at a time (as needed), to reduce idle speed.

Checking the fuel mixture, cleaning the air filter, and adjusting the idle speed should solve most engine problems.

If not and all of the following are true:

° the engine will not idle

° the engine hesitates or stalls on acceleration

° there is a loss of engine power

Have the carburetor adjusted by an authorized service dealer.

WARNING: To prevent serious personal !

injury, make sure the cutting attachment has stopped rotating before you turn it off I

I and set it down.

J

REPLACING THE SPARK PLUG

Use a Champion RDJ7Y spark plug, or equivalent. The correct air gap is 0.020 inch (0.5 ram). Remove the plug after every 25 hours of operation and check its condition.

1.

Stop the engine and allow it to cool. Grasp the plug wire firmly and pull it from the spark plug.

2.

Clean around the spark plug. Remove the spark plug from the cylinder head by turning a 5/8-inch socket counterclockwise.

.

Replace a cracked, fouled or dirty spark plug. Set the air gap at 0.020 in. (0.5 ram) using a feeler gauge

(Fig. 35).

CAUTION: Do not sand blast, scrape or !

clean electrodes.

Grit in the engine could I damage the cylinder.]

4.

Install a correctly-gapped spark plug in the cylinder head. Tighten by turning the 5/8-inch socket clockwise until snug.

If using a torque wrench torque to:

110-120 in.,Ib.

(12.3-13.5 Nora)

Do not over tighten.

Fig. 35

Fig. 34

18

CLEANING

WARNING:To avoid serious personal injury, always turn your trimmer off and allow it to coo before you c ean or service it.

Use a small brush to clean off the outside of the unit.

Do not use strong detergents.

Household cleaners that contain aromatic oils such as pine and lemon, and solvents such as kerosene, can damage plastic housing or handle. Wipe off any moisture with a soft cloth.

STORAGE

° Never store a fueled unit where fumes may reach an open flame or spark.

• Allow the engine to cool before storing.

• Store the unit locked up to prevent unauthorized use or damage.

° Store the unit in a dry, well-ventilated area.

• Store the unit out of the reach of children.

LONG TERM STORAGE

If you plan on storing the unit for an extended time, use the following storage procedure:

1.

Drain all fuel from the fuel tank into a container with the same 2-cycle fuel mixture. Do not use fuel that has been stored for more than 60 days. Dispose of the old fuel/oil mix in accordance to Federal, State and Local regulations.

.

Start the engine and allow it to run until it stalls. This ensures that all fuel has been drained from the carburetor.

.

Allow the engine to cool. Remove the spark plug and put 1 oz. (30 ml) of any high quality motor oil or

2-cycle oil into the cylinder. Pull the starter rope slowly to distribute the oil. Reinstall the spark plug.

NOTE: Remove the spark plug and drain all of the oil from the cylinder before attempting to start the trimmer after storage.

.

Thoroughly clean the unit and inspect it for any loose or damaged parts. Repair or replace damaged parts and tighten loose screws, nuts or bolts. The unit is ready for storage.

TRANSPORTING

• Allow the engine to cool before transporting.

° Drain fuel from unit.

• Tighten fuel cap before transporting.

• Secure the unit while transporting.

ACCESSORIES/REPLACEMENT

2-Cycle Oil .............................

Spark Plug ..............................

Spark Arrestor ...........................

Replacement Line ........................

Replacement Line Cartridge ................

Inner Reel Spring ........................

Outer Spool .............................

Inner Reel ..............................

Bump Knob .............................

Fuel Cap ...............................

Shoulder Strap ..........................

PARTS

147543

610311

182747

181472

181460

181465

181457

181464

181468

180000

682075

For specific replacement parts, refer to the parts list located on the inside back cover of this manual.

19

CAUSE

On/Off Stop Control is in OFF position

Empty fuel tank

Primer bulb wasn't pressed enough

Engine is flooded

Old or improperly mixed fuel

Fouled spark plug

Plugged spark arrestor

EZ-Start lever wasn't set/flipped

CAUSE

Air filter is plugged

Old or improperly mixed fuel

Improper carburetor adjustment

ACTION

Turn On/Off Stop Control to ON

Fill fuel tank with properly mixed fuel

Press primer bulb fully and slowly 10 times

Squeeze the trigger and pull the starter rope

Drain gas tank and add fresh fuel mixture

Replace or clean the spark plug

Clean or replace spark arrestor

Flip EZ-Start lever

=

ACTION

Replace or clean the air filter

Drain gas tank and add fresh fuel mixture

Adjust according to the Carburetor Adjustments section

CAUSE

Old or improperly mixed fuel

Improper carburetor adjustment

Cutting attachment bound with grass

Dirty air filter

Plugged spark arrestor

ACTION

Drain gas tank and add fresh fuel mixture

Take to an authorized service dealer for carburetor adjustment

Stop the engine and clean the cutting attachment

Clean or replace the air filter

Clean or replace spark arrestor

CAUSE

Old or improperly mixed fuel

Improper carburetor adjustment

Fouled spark plug

Plugged spark arrestor

CAUSE

Cutting attachment bound with grass

Cutting attachment out of line

Inner reel bound up

Cutting head dirty

Line welded

Line twisted when refilled

Not enough line is exposed

ACTION

Drain gas tank and add fresh fuel mixture

Take to an authorized service dealer for carburetor adjustment

Replace or clean the spark plug

Clean or replace spark arrestor

ACTION

Stop the engine and clean cutting attachment

Refill with new line

Replace the inner reel

Clean inner reel and outer spool

Disassemble, remove the welded section and rewind

Disassemble and rewind the line

Push the bump knob and pull out line until 4 inches

(102 mm) of line is outside of the cutting attachment

2O

CAUSE

Oil, cleaner or lubricant in cutting head

ACTION

Clean and thoroughly dry the cutting head

If further assistance is required, contact your authorized service dealer.

Engine Type ..........................................................................................................................................

Stroke ....................................................................................................................................................

Displacement .............................................................................................................................................

Clutch Type .........................................................................................................................................................

Idle Speed RPM .......................................................................................................................................

Air-Cooled, 2-Cycle

1.25 in. (31.75 mm)

1.9 cu in. (31 cc)

Centrifugal

2,800 - 4,000 rpm

Operating RPM ...................................................................................................................................................

Ignition Type ..........................................................................................................................................................

Ignition Switch ...................................................................................................................................................

7,200+ rpm

Electronic

Slide Switch

Spark Plug Gap .......................................................................................................................................

Lubrication ...................................................................................................................................................

0.020 in. (0.5 mm)

Fuel/Oil Ratio .................................................................................................................................................................

Fuel/Oil Mixture

40:1

Carburetor .......................................................................................................................................

Starter ...............................................................................................................................................................

Diaphragm, All-Position

Auto Rewind

Muffler .....................................................................................................................................................

Baffled with Guard

Throttle ...............................................................................................................................................

Fuel Tank Capacity .......................................................................................................................................

Manual Spring Return

12 oz. (355 ml)

Drive Shaft Housing .........................................................................................................................

Throttle Control ........................................................................................................................................

Steel Tube (EZ-LinM M)

Finger-Tip Trigger

Approximate Unit Weight (No fuel, with cutting attachment, shield and J-handle) ..........................................

13 Ibs. (6 kg)

Cutting Mechanism ................................................................................................

Line Spool .................................................................................................................

SpeedSpool ® Dual String Cutting Head

Bump Line Releaser

Line Spool Diameter ........................................................................................................

Trimming Line Diameter ................................................................................

Cutting Path Diameter ........................................................................................................................

3 inches (76.2 mm)

0.080 inches (2.03 mm)

17 inches (43.18 cm)

21

EPA Emission Control Warranty Statement

Your Warranty Rights and Obligations

The Environmental Protection Agency and MTD LLC (MTD) are pleased to explain the emission control system warranty on your 2002 and later small off-road engine. New small off-road engines must be designed, built and equipped to meet stringent anti-smog standards.

Ryobi must warrant the emission control system on your small off-road engine for the periods of time listed below provided there has been no abuse, neglect or improper maintenance of your small off-road engine.

Your emission control system may include parts such as the carburetor or fuel-injected system, the ignition system, and catalytic converter. Also included may be hoses, belts, connectors and other emission-related assemblies.

Where a warrantable condition exists, Ryobi will repair your small off-road engine at no cost to you including diagnosis, parts and labor.

The 2002 and later small off-road engines are warranted for two years. If any emission-related part on your engine is defective, the part will be repaired or replaced by Ryobi.

Owners Warranty Responsibilities

• As the small off-road engine owner, you are responsible for the performance of the required maintenance listed in your operator's manual. Ryobi recommends that you retain all receipts covering maintenance on your small off-road engine, but Ryobi cannot deny warranty solely for the lack of receipts or for your failure to ensure the performance of all scheduled maintenance.

• As the small off-road engine owner, you however should be aware that Ryobi may deny you warranty coverage if your small off-road engine or a part has failed due to abuse, neglect, improper maintenance or unapproved modifications.

• You are responsible for presenting your small off-road engine to a Ryobi Authorized Service Center 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 call 1-800-345-8746.

Manufacturer's Warranty Coverage

° The warranty period begins on the date the engine or equipment is delivered to the retail purchaser.

° The manufacturer warrants to the initial owner and each subsequent purchaser, that the engine is free from defects in material and workmanship which cause the failure of a warranted part for a period of two years.

• Repair or replacement of warranted part will be performed at no charge to the owner at an Authorized Ryobi Service

Center. For the nearest location please contact Ryobi at: 1-800-345-8746.

• Any warranted part which is not scheduled for replacement, as required maintenance or which is scheduled for only for regular inspection to the effect of "Repair or Replace as Necessary" is warranted for the warranty period. Any warranted part which is scheduled for replacement as required maintenance will be warranted for the period of time up to the first scheduled replacement point for that part.

• The owner will not be charged for diagnostic labor which leads to the determination that a warranted part is defective, if the diagnostic work is performed at an Authorized Ryobi Service Center.

° The manufacturer is liable for damages to other engine components caused by the failure of a warranted part still under warranty.

• Failures caused by abuse, neglect or improper maintenance are not covered under warranty.

° The use of add-on or modified parts can be grounds for disallowing a warranty claim. The manufacturer is not liable to cover failures of warranted parts caused by the use of add-on or modified parts.

• In order to file a claim, go to your nearest Authorized Ryobi Service Center. Warranty services or repairs will be provided at all Authorized Ryobi Service Centers.

• Any manufacturer approved replacement part may be used in the performance of any warranty maintenance or repair of emission related parts and will be provided without charge to the owner. Any replacement part that is equivalent in performance or durability may be used in non-warranty maintenance or repair and will not reduce the warranty obligations of the manufacturer

° The following components are included in the emission related warranty of the engine, air filter, carburetor, primer, fuel lines, fuel pick up/fuel filter, ignition module, spark plug and muffler.

23

ENGINE PARTS - MODEL 775r

PPN- 41 ED775A034

I

\

\

Part No.

753-1192

791-180350

791-180351

753-04227

753-1194

753-04331

791-610675

791-181860

791-181558

753-1196

791-684451

753-1208

753-04332

791-612134

753-04311

791-182438

791-181168

791-682039

791-145308

791-182064

791-182736

791-181065

753-04232

791-613102

791-181441

791-611061

791-181079

791-613103

791-181443

Item

1

24

25

26

27

28

29

17

18

19

20

21

22

23

6

7

8

9

2

3

4

5

10

11

12

13

14

15

16

Description

Carburetor/Air Cleaner Cover Assembly

(includes 2 & 35)

Air Cleaner Filter

Carburetor Mounting Screw Assembly

Choke Extension

Choke Plate

Carburetor Assembly (includes 7 & 18)

Carburetor Gasket

Carb Mount Screw

Primer and Hose Assembly

Carb Mount Assembly (includes 8,11 & 12)

Reed Assembly

Carburetor Mount Gasket

Crank Case Service Assembly (includes 8)

Rear Mounting Pad

Fuel Tank Assembly (includes 16-18)

Fuel Cap Assembly

Fuel Return Line

Fuel Line Assembly

Front Mounting Pad

Shroud Extension and Stand

Flywheel Assembly

Spacer

Recoil Pulley Assembly

Recoil Spring

Pulley Retainer Assembly

Rope Guide

Pull Handle

Rope

Starter Housing Assembly

(includes 23-28, 30 36 & 37)

E22

Item

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

Pa_ No.

791-181862

791-182368

791-181445

791-153592

791-182797

791-181345

791-181442

791-180036

753-04324

791-610311

791-182065

791-182747

791-182066

791-147575

753-04323

753-1207

753-1197

791-182723

791-182519

753-04134

791-180608

791-181873

753-1209

753-04334

791-181599

Description

Housing Screw

Clutch Washer

Clutch Rotor Assembly

Clutch Drum Assembly

Clutch Cover Assembly (includes 35 & 48)

Screws

Switch Assembly

Wire Lead

Module Assembly

Spark Plug

Exhaust Gasket

Spark Arrestor

Muffler Assembly (includes 40, 41 & 43)

Muffler Mounting Bolt Assembly

Cylinder Assembly (includes 46 & 47)

Piston and Rod Assembly

Cylinder Gasket

Cylinder Bolt

Anti-Rotation Screw

Engine Gasket Kit

O.E.M. Carburetor Repair Kit

Gasket Diaphragm Repair Kit

Piston Ring

Short Block Assembly

(includes 8, 13, 39, 40, 44, 45 & 47)

Clutch Springs (Qty. 2)

BOOM & TRIMMER PARTS - MODEL 775r

PPN- 41ED775A034

Item

1

32

33

34

35

36

37

38

39

40

41

23

24

25

26

27

28

29

30

31

9

10

11

12

13

14

15

6

7

8

4

5

2

3

16

17

18

19

20

21

22

Part No.

791-182808

791-153597

791-145569

791-181566

791-180547

791-180548

791-180553

791-181457

791-181458

791-181561

791-181459

753-04257

791-181532

791-181531

791-181462

791-181463

791-181464

791-181465

791-181467

791-181468

791-610314

791-182385

753-04278

753-04344

791-180687

791-612831

791-612021

791-683295

791-181811

791-181812

791-181813

791-181814

791-181815

791-145569

791-181616

791-182057

791-181617

791-181618

791-181886

753-1212

791-181166

Description

Throttle Housing & Trigger Assembly

(includes 2 & 3)

Throttle Trigger Spring

Throttle Trigger

Throttle Cable Assembly

Upper Drive Shaft Housing Assembly

J-Handle Assembly (includes 7 & 8)

Grip

Tube Closure

Handle Bracket Assembly (includes 10-15)

Screw

Upper Handle Clamp

Middle Handle Clamp

Lower Handle Clamp

Nut

Anti-Rotation Screw

Click-Link Coupler (includes 17-20)

Screw

Bolt

Adjustment Knob

Knob Retaining Nut

Lower Drive Shaft Housing Assembly

Lower Flexible Drive Shaft

Lower Clamp Assembly (includes 24)

Anti-Rotation Screw

Gearbox Assembly

Shield Mounting Hardware

Shield and Blade Assembly (includes 28)

Blade Assembly

Outer Spool Assembly (includes 30)

Retainer

Thrust Washer

Small Spring

Slider

E-Clip

Spring

Plunger

C-Clip

Inner Reel

Large Spring

Foam Seal

Bump Knob Assembly(includes 39 & 40)

Optional

*

Accessories

791-181472

*

*

791-181460

791-682075

791-147543

Replacement Line, 0.80 Diameter

(Eight - 10 ft lengths)

Reel and Line Assembly

Shoulder Strap Assembly

2-Cycle Oil

Items Not Shown

E23

MANUFACTURER'S LIMITED WARRANTY FOR:

®

The limited warranty set forth below is given by MTD LLC

("MTD") with respect with new merchandise purchased and used in the United States, its possessions and territories.

MTD warrants this product against defects in material and workmanship for a period of two (2) years commencing on the date of original purchase and will, at its option, repair or replace, free of charge, any part found to be defective in material or workmanship.

This limited warranty shall only apply if this product has been operated and maintained in accordance with the Operator's Manual furnished with the product, and has not been subject to misuse, abuse, commercial use, neglect, accident, improper maintenance, alteration, vandalism, theft, fire, water or damage because of other peril or natural disaster. Damage resulting from the installation or use of any accessory or attachment not approved by MTD for use with the product(s) covered by this manual will void your warranty as to any resulting damage.

This warranty is limited to ninety (90) days from the date of original retail purchase for any MTD product that is used for rental or commercial purposes, or any other incomeproducing purpose.

HOW TO OBTAIN SERVICE: Warranty service is available,

WITH PROOF OF PURCHASE THROUGH YOUR LOCAL

AUTHORIZED SERVICE DEALER. To locate the dealer in your area, please check for a listing in the Yellow Pages or contact the Customer Service Department of MTD LLC by calling

1-800-345-8746 or writing to P.O. Box 361131, Cleveland

OH 44136-0019 or if in Canada call 1-800-668-1238.

No product returned directly to the factory will be accepted unless prior written permission has been extended by the

Customer Service Department of MTD LLC.

This limited warranty does not provide coverage in the following cases:

A.

Tune-ups - Spark Plugs, Carburetor Adjustments,

Filters

B.

Wear itemsBump Knobs, Outer Spools, Cutting Line,

Inner Reels, Starter Pulley,Starter Ropes, Drive Belts

C.

MTD does not extend any warranty for products sold or exported outside of the United States of America, its possessions and territories, except those sold through

MTD's authorized channels of export distribution.

MTD reserves the right to change or improve the design of any RYOBI Product without assuming any obligation to modify any product previously manufactured.

No implied warranty, including any implied warranty of merchantability or fitness for a particular purpose, applies after the applicable period of express written warranty above as to the parts as identified.

No other express warranty or guaranty, whether written or oral, except as mentioned above, given by any person or entity, including a dealer or retailer, with respect to any product shall bind MTD.

During the period of the

Warranty, the exclusive remedy is repair or replacement of the product as set forth above.

(Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.)

The provisions as set forth in this Warranty provide the sole and exclusive remedy arising from the sales.

MTD shall not be liable for incidental or consequential loss or damages including, without limitation, expenses incurred for substitute services, for transportation or replacement lawn care or for related expenses, or for rental expenses to temporarily replace a warranted product.

(Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.)

In no event shall recovery of any kind be greater than the amount of the purchase price of the product sold.

Alteration of the safety features of the product shall void this Warranty.

You assume the risk and liability for loss, damage, or injury to you and your property and/or to others and their property arising out of the use or misuse or

inability to use the product.

This limited warranty shall not extend to anyone other than the original purchaser, original lessee or the person for whom it was purchased as a gift.

How State Law Relates to this Warranty: This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

To locate your nearest service dealer dial 1-800-345-8746 in the United States or 1-800-668-1238 in Canada.

MTD LLC

P.O. Box 361131

Cleveland, OH 44136-0019

SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.

FOR QUESTIONS CALL 1-800-345-8746

OR 1-800-668-1238 IN CANADA

IN U.S.

OPERATOR'S MANUAL PART NO. 769-00511

PRINTED IN U.S.A.

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