MTD tb25cs-41adt25c966 Parts Manuals

Operator’s Manual

2-Cycle Gasoline Trimmers

TB75SS & TB25CS

SAVE THESE INSTRUCTIONS

For service call 1-800-520-5520 in the United States, or 1-800-668-1238 in Canada to obtain a list of authorized service

dealers near you. For more details about your unit, visit our website at www.troybilt.com.

DO NOT RETURN THE UNIT TO THE RETAILER. PROOF OF PURCHASE WILL BE REQUIRED FOR WARRANTY SERVICE.

THIS PRODUCT IS COVERED BY ONE OR MORE U.S. PATENTS. OTHER PATENTS PENDING.

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

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.

WARNING: When using the unit, you must follow

the safety rules. Please read these instructions before operating the unit in order to ensure the safety of the operator and any bystanders. Please keep these instructions for later use.

SPARK ARRESTOR NOTE 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 #753-05169 Spark Arrestor Kit.

CALIFORNIA PROPOSITION 65 WARNING

P/N 769-02486 (7/06)

TABLE OF CONTENTS

Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Rules for Safe Operation . . . . . . . . . . . . . . . . . . . . . . . . . .2

Oil and Fuel Information . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Starting/Stopping Instructions . . . . . . . . . . . . . . . . . . . . . .6

Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Maintenance and Repair Instructions . . . . . . . . . . . . . . . .9

Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E19

WARNING

THE ENGINE EXHAUST FROM THIS PRODUCT CONTAINS

CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO

CAUSE CANCER, BIRTH DEFECTS OR OTHER

REPRODUCTIVE HARM.

Starting

READ ALL INSTRUCTIONS 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 and teens under the age of 15 must not use the unit, except for teens guided by an adult.

• All guards and safety attachments must be installed properly before operating the unit.

• Inspect the unit before use. Replace damaged parts. Check for fuel leaks. Make sure all fasteners are in place and secure. Replace parts that are cracked, chipped, or damaged in any way. Do not operate the unit with loose or damaged parts.

• Carefully inspect the area before starting the unit. Remove all debris and hard or sharp objects such as glass, wire, etc.

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

• Clear the area of children, bystanders, and pets. At a minimum, keep all children, bystanders, and pets outside a 50 feet (15 m.) radius; there still may be a risk to bystanders from thrown objects. Bystanders should be encouraged to wear eye protection. If you are approached, stop the unit immediately.

• Use only 0.095 inch (2.41 mm) diameter original equipment manufacturer replace-ment line. Never use metal-reinforced line, wire or rope. These can break off and become dangerous projectiles.

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

SAFETY WARNINGS FOR GAS UNITS

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

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

• 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.

• Mix and 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. 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 as a trimmer. 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 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.

• 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, or for changing the cutting attachment or other attachments.

• Use only original equipment manufacturer 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

• IMPORTANT SAFETY INSTRUCTIONS •

WARNING: Gasoline is highly flammable, and its

vapors can explode if ignited. Take the following precautions:

WARNING:

When using the unit, you must follow the safety rules. Please read these instructions before operating the unit in order to ensure the safety of the operator and any bystanders. Please keep these instructions for later use.

RULES FOR SAFE OPERATION

SYMBOL MEANING

• ON/OFF STOP CONTROL

ON / START / RUN

• 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.

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.

• ON/OFF STOP CONTROL

OFF or STOP

SYMBOL MEANING

• SAFETY ALERT SYMBOL

Indicates danger, warning or caution. May be used in conjunction with other symbols or pictographs.

• 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.

• KEEP BYSTANDERS AWAY WARNING: Keep all bystanders, especially

children and pets, at least 50 feet (15 m) from the operating area.

• 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.

• 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.

• UNLEADED FUEL

Always use clean, fresh unleaded fuel

• OIL

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

OIL AND FUEL INFORMATION

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 2cycle 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.

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.

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

Federal, State and Local regulations.

UNLEADED GAS 2 CYCLE OIL

1 GALLON US

(3.8 LITERS)

3.2 FL. OZ. (95 ml)

1 LITER 25 ml

MIXING 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

outdoor area. Wipe up any spilled fuel immediately. Avoid creating a source of ignition for spilt fuel. Do not start the engine until fuel vapors dissipate.

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 fuel can severely damage the engine.

APPLICATIONS

As a trimmer:

• Cutting grass and light weeds.

• Edging

• Decorative trimming around trees, fences, etc. Other optional accessories may be used with the TB75SS and

TB25CS. Refer to Operating the EZ-Link System for a list of add-ons.

Cutting Attachment

Shield

Fuel Cap

Throttle

Control

D-Handle

Cutting Attachment

Shaft Grip

Primer Bulb

Air Filter/Muffler

Cover

Engine

Stand

Spark Plug

Shaft Housing

Starter Rope Grip

EZ-Link™

Spark Plug

Muffler

Guard

Muffler

EZ-Start™ Lever

Line Cutting Blade

On/Off Stop

Control

Blue EZ-Start

Lever

KNOW YOUR UNIT

INSTALLING AND ADJUSTING THE D-HANDLE Install

1. Remove the screws and bottom clamp piece that were installed on the D-handle for shipping.

2. Place D-handle the over the shaft housing and onto the bottom clamp (Fig. 1). Place it a minimum of 6 inches (15.24 cm) from the end of the shaft grip.

3. Start screws with a large Flat-head or T-25 Torx screwdriver. Do not tighten until you make the handle adjustment.

Adjust

4. If the D-handle was pre-installed, loosen the screws on the handle just enough to move it.

(4) Screws

Shaft

Housing

D-Handle

Bottom Clamp

Shaft Grip

Minimum 6 inches

(15.24 cm)

On/Off Stop Control

5. While holding the unit in the operating position, manuever the D-handle to the location that provides you the best grip.

6. Tighten the clamp screws evenly, until the D-handle is secure.

Fig. 1

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.

Install on a Straight Shaft (TB75SS)

1. 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. 2).

2. Place a hex lock nut into one of the three recessed holes on the top of the cutting attachment shield (Fig 3).

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 3). Do not tighten.

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

Fig. 2

Fig. 3

Screws (3)

Shaft Housing

Hex Lock

Nut

Cutting

Attachment

Shield

Cutting Attachment

Recessed Holes

Shield Mount

Install on a Curved Shaft (TB25CS)

1. Place the cutting attachment shield onto the shaft housing above the clamp assembly (Fig. 4).

2. Push the cutting attachment shield down to the top of the cutting attachment assembly and then rotate the cutting attachment shield until the screw holes align and the guard fits into the recessed pocket (Fig. 4).

3. Install the screws with a Phillips screwdriver (Fig. 5).

Fig. 4

(4) Screws

Clamp

Assembly

Cutting

Attachment

Assembly

Cutting

Attachment Shield

Recessed

Pocket

Fig. 5

ASSEMBLY INSTRUCTIONS

WARNING: Never operate the trimmer without

the cutting attachment shield in place to prevent serious personal injury.

STARTING INSTRUCTIONS

Fig. 6

Fig. 7

Throttle Control

(Do NOT squeeze during

a standard start)

STOPPING INSTRUCTIONS

1. Release your hand from the throttle control. Allow the engine to cool down by idling.

2. Put the On/Off Stop Control in the OFF (O) position (Fig. 6).

Primer

Bulb

Fig. 8

1. Mix gas with oil. Fill fuel tank with fuel/oil mixture. See Oil and Fuel Mixing Instructions.

NOTE: There is no need to turn the unit on. The On/Off Stop

Control is in the ON ( I ) position at all times.

2. Fully press and release the primer bulb 10 times, slowly. Some amount of fuel should be visible in the primer bulb and fuel lines (Fig. 7). 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.

3. Push the blue EZ-Start™ lever towards the primer bulb until it clicks and locks into place (Fig. 7).

4. Crouch in the starting position and do not squeeze the

throttle control (Fig. 8). Pull the starter rope out with a controlled and steady motion until the engine attempts to

start. Repeat until the engine starts.

NOTE: The unit uses Spring Assist Starting™, which

significantly reduces the effort required to start the engine. You must pull the starter rope out far enough to hear the engine attempt to start. There is no need to pull the rope briskly-- there is no harsh resistance when pulling. Be aware that this starting method is vastly different from (and much easier than) what you may be used to.

5. When the engine starts, squeeze the throttle control for 15 to 30 seconds. This will warm up the unit. The blue EZ-Start™ lever will click off automatically when you squeeze the throttle control.

IF...

The engine does not start, go back to step 2.

IF...

The engine stops while you are squeezing the throttle, go back to step 3.

IF...

The engine stops before you squeeze the throttle control, hold the throttle control and pull the starter rope until the trimmer starts.

NOTE: If you are having trouble starting the unit or are

operating in extreme temperatures (below 40º F, above 90º F), refer to the Troubleshooting section.

Start/On ( I )

Stop/Off (O)

Throttle

Control

Starting Position

Trimmer

Equipped With

Spring Assist

Starting ™

Blue EZ-Start

Lever

STARTING / STOPPING INSTRUCTIONS

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 AddOn being used is installed correctly and secure before starting the unit.

WARNING:

Operate this unit only in a wellventilated outdoor area. Carbon monoxide exhaust fumes can be lethal in a confined area.

For decorative trimming/edging with the line head cutting attachment, lock the release button of the cutting attachment

into the 90° hole (Fig. 11).

OPERATING THE EZ-LINK™ SYSTEM

The EZ-Link™ system enables the use of these optional AddOns.

Cultivator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBGC

Edger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBLE

Hedge Trimmer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBAH

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

Turbo Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBTB

Pole Saw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBPS

Brushcutter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TBBC*

*Do NOT use this attachment with an electric powered product.

Removing the Cutting Attachment or Add-Ons

1. Turn the knob counterclockwise to loosen (Fig. 9).

2. Press and hold the release button (Fig. 9).

3. While firmly holding the upper shaft housing, pull the cutting attachment or add-on straight out of the EZLink™ coupler (Fig. 10).

Installing the Cutting Attachment or Add-Ons

NOTE: To make installing or removing the add-on

easier, place the unit on the ground or on a work bench.

1. Turn knob counterclockwise to loosen (Fig. 9).

Fig. 9

EZ-Link™ Coupler

Release Button

Guide Recess

Knob

Primary Hole

Upper Shaft Housing

90˚ Edge

Trimming Hole

EZ-Link™ Coupler

2. While firmly holding the add-on, push it straight into the EZ-Link™ coupler (Fig. 10).

NOTE: Aligning the release button with the guide recess will

help installation (Fig. 9).

3. Turn the knob clockwise to tighten (Fig. 11).

Fig. 10

Fig. 11

Knob

Lower Shaft Housing

Release Button

OPERATING INSTRUCTIONS

WARNING: Before you begin using any

attachment, read and understand the manual that came with the attachment. Follow all safety information contained within.

WARNING: To avoid serious personal injury and

damage to the unit, shut the unit off before removing or installing add-ons.

CAUTION: The add-ons with the coupler system

is to be used in the primary hole only. Using the wrong hole could lead to personal injury or damage to the unit.

CAUTION: Lock the release button in the

primary hole (Fig. 10) and securely tighten the knob before operating this 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 forward-backward 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 trimming techniques

• What vegetation is being cut

• Where vegetation is cut

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

HOLDING THE TRIMMER

Before operating the unit, stand in the operating position (Fig.

12). Check for the following:

• The operator is wearing eye protection and proper clothing

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

• The operator’s left arm is straight, the left hand holding the D-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 ove

ADJUSTING TRIMMING LINE LENGTH

The Bump Head™ 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. 13) while operating the trimmer at high speed.

NOTE: Always keep the trimming line fully extended. Line release

becomes more difficult when the cutting line gets shorter.

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.

NOTE: Do not rest the Bump Head™ on the ground while the

unit is running.

Fig. 13

Fig. 12

DECORATIVE TRIMMING

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

Rotate the whole unit so that the cutting attachment is at a 30° angle to the ground (Fig. 14).

Fig. 14

TB75SS

TB25CS

TB75SS

OPERATING INSTRUCTIONS

WARNING: Always wear eye, hearing, foot and

body protection to reduce the risk of injury when operating this unit.

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.

LINE INSTALLATION FOR THE SPEEDSPOOL

Always use original equipment manufacturer 0.095 inch (2.41 mm) replacement line. Lines other than the 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 0.095 inch (2.41 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. 15).

Top View Of The SpeedSpool

Outer Spool

Inner Reel

Fig. 15

Bump Knob

Arrows

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.

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.

MAINTENANCE AND REPAIR INSTRUCTIONS

WARNING: Never use metal-reinforced line,

wire, chain or rope. These can break off and become dangerous projectiles.

WARNING: To prevent serious injury, never

perform maintenance or repairs with unit running. Always service and repair a cool unit. Disconnect the spark plug wire to ensure that the unit cannot start.

WARNING: Always use the correct line length

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

FREQUENCY MAINTENANCE REQUIRED REFER

Before starting Fill fuel tank with fresh fuel Page 3 Every 10 hours Clean and re-oil air filter Page 12

Every 25 hours

Check and clean spark arrestor Check spark plug condition and gap

Page 12 Page 14

Every 50 hours

Inspect exhaust port and spark arrestor screen for clogging or obstruction to assure maximum performance levels

Page 12

Line Locking Hole

Trimming Line

Line Loading Hole

Eyelet

5. Insert the line into the locking hole (Fig. 17). 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. 17) when it is inserted correctly.

3. Pull old line out of the line loading and line locking holes (Fig. 16 and 17).

4. 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. 16). Do not bend the line when inserting it into the eyelet.

Fig. 16

Fig. 17

4. 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. 20).

Releasing the Inner Reel

If the SpeedSpool®does not release line correctly, pull the ends of the line firmly from the spool (Fig. 20). If this does not the release line, follow the Cleaning the SpeedSpool

instructions.

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

3. Insert the ends of the prewound inner reel line into the outer spool eyelets (Fig. 22). Push the new inner reel, arrow side up, into the outer spool.

Fig. 22

6. Pull the line from the outer spool until the line is tight against the inner reel (Fig. 18).

Fig. 18

INSTALLING A PRE-WOUND REEL

1. Turn the bump knob counterclockwise and remove the bump knob, spring and foam seal (Fig. 21).

9. If winding the line becomes difficult or if the line jams, pull the ends of the line from the spool (Fig. 20). Continue winding the inner reel counterclockwise.

Fig. 19

Fig. 20

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. 19).

NOTE: Do not wind the inner reel before installing the second

piece of line.

Bump Knob

Foam Seal

Spring

Inner Reel

Fig. 21

MAINTENANCE AND REPAIR INSTRUCTIONS

Fig. 31

SPARK ARRESTOR MAINTENANCE

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

2. Locate the muffler, but do not remove it. Find the screw on the bottom of the muffler (Fig. 31). Remove the screw using either a torx #20 or flat blade screwdriver.

3. Carefully pry up the left side spark arrestor hood. Two tabs act as hinges on the right side of the hood. Flip open the spark arrestor hood like a door and then pull its tabs out of the muffler slots.

4. Using a small flat blade screwdriver, carefully pry the spark arrestor screen out from the inside of the spark arrestor hood.

5. Clean the spark arrestor screen with a wire brush. Replace it if it is damaged, or if you are unable to clean it thoroughly.

6. Reinstall the spark arrestor screen snugly back into the spark arrestor hood.

7. Reinstall the two hood tabs into the two muffler slots and flip the spark arrestor hood closed.

8. Replace the screw you removed in Step 2 and tighten it securely.

9. Reinstall the air filter/muffler cover.

Spark Arrestor

Screen

Spark Arrestor

Hood

Screw

Muffler

Engine

Tabs

Slots

Fig. 27

Fig. 28

Fig. 29

Fig. 30

6. Replace the air filter inside the air filter/muffler cover (Fig.

27).

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. 26) and tighten.

Do not over tighten.

Air Filter

Inside Muffler

Cover

MAINTENANCE AND REPAIR INSTRUCTIONS

WARNING:

If the exhaust deflector assembly is not tightened securely, it could fall off causing damage to the unit and possible serious personal injury.

CLEANING

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.

REPLACING THE SPARK PLUG

Use a Champion RDJ7Y spark plug (or equivalent). The correct air gap is 0.020 inch (0.5 mm). 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 in. socket counterclockwise.

3. Replace a cracked, fouled or dirty spark plug. Set the air gap at 0.020 in. (0.5 mm) using a feeler gauge (Fig. 33).

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.•lb. (12.3-13.5 N•m) Do not over tighten.

0.020 in.

(0.5 mm)

Fig. 3

STORAGE

• Never store the unit with fuel in the tank 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 the unit will be stored 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.

2. Start the engine and allow it to run until it stalls. This

ensures that all fuel has been drained from the carburetor.

3. 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.

4. 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.

MAINTENANCE AND REPAIR INSTRUCTIONS

WARNING: To avoid serious personal injury,

always turn your unit off and allow it to cool before you clean or service it.

WARNING: Do not sand blast, scrape or clean

electrodes. Grit in the engine could damage the cylinder.

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

CAUSE ACTION

Cutting attachment bound with grass Stop the engine and clean cutting attachment Cutting attachment out of line Refill with new line Inner reel bound up Replace the inner reel

Cutting head dirty Clean inner reel and outer spool Line welded Disassemble, remove the welded section and rewind Line twisted when refilled Disassemble and rewind the line Not enough line is exposed Push the bump knob and pull out line until 4 inches

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

CAUSE ACTION

Old or improperly mixed fuel Drain gas tank and add fresh fuel mixture Improper carburetor adjustment Take to an authorized service dealer for an adjustment Fouled spark plug Replace or clean the spark plug Plugged spark arrestor Clean or replace spark arrestor

CAUSE ACTION

Empty fuel tank Fill fuel tank with properly mixed fuel Primer bulb wasn't pressed enough Press primer bulb fully and slowly 10 times Engine is flooded Squeeze the trigger and pull the starter rope Old or improperly mixed fuel Drain gas tank and add fresh fuel mixture Fouled spark plug Replace or clean the spark plug Plugged spark arrestor Clean or replace spark arrestor Blue EZ-Start™ lever wasn’t flipped/set Move lever to the starting position The outside temperature is below 40º F Pull the starter rope up to 10-15 times The outside temperature is above 90º F Squeeze the throttle control and pull the starter rope

ENGINE WILL NOT START

ENGINE WILL NOT IDLE

ENGINE WILL NOT ACCELERATE

CAUSE ACTION

Air filter is plugged Replace or clean the air filter Old or improperly mixed fuel Drain gas tank and add fresh fuel mixture Improper carburetor adjustment Adjust according to the Carburetor Adjustments section

CAUSE ACTION

Old or improperly mixed fuel Drain gas tank and add fresh fuel mixture Improper carburetor adjustment Take to an authorized service dealer for an adjustment Cutting attachment bound with grass Stop the engine and clean the cutting attachment Dirty air filter Clean or replace the air filter Plugged spark arrestor Clean or replace spark arrestor

CAUSE ACTION

Oil, cleaner or lubricant in cutting head Clean and thoroughly dry the cutting head

CUTTING LINE ADVANCES UNCONTROLLABLY

TROUBLESHOOTING

ENGINE LACKS POWER OR STALLS WHEN CUTTING

CUTTING ATTACHMENT WILL NOT ADVANCE LINE

ENGINE*

*All specifications 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.

Engine Type............................................................................................................................................................... Air-Cooled, 2-Cycle

Stroke ......................................................................................................................................................................... 1.25 in. (31.75 mm)

Displacement .................................................................................................................................................................. 1.9 cu in. (31 cc)

Clutch Type............................................................................................................................................................................... Centrifugal

Idle Speed RPM............................................................................................................................................................ 2,800 - 4,000 rpm

Operating RPM ....................................................................................................................................................................... 7,200+ rpm

Ignition Type............................................................................................................................................................................... Electronic

Ignition Switch ................................................................................................................................................................... Rocker Switch

Spark Plug Gap ............................................................................................................................................................ 0.020 in. (0.5 mm)

Lubrication ........................................................................................................................................................................ Fuel/Oil Mixture

Fuel/Oil Ratio....................................................................................................................................................................................... 40:1

Carburetor ............................................................................................................................................................ Diaphragm, All-Position

Starter .................................................................................................................................................................................... Auto Rewind

Muffler .......................................................................................................................................................................... Baffled with Guard

Throttle .................................................................................................................................................................... Manual Spring Return

Fuel Tank Capacity ............................................................................................................................................................ 13 oz. (384 ml)

Drive Shaft Housing ............................................................................................................................................... Steel Tube, EZ-Link™

Throttle Control.............................................................................................................................................................. Finger-Tip Trigger

Approximate Unit Weight (No fuel, with cutting attachment, shield and D-handle) ............................................................ 13 lbs. (6 kg)

Cutting Mechanism ....................................................................................................................... SpeedSpool Dual String Cutting Head

Line Spool .................................................................................................................................................................. Bump Line Releaser

Line Spool Diameter ................................................................................................................................................... 3 inches (76.2 mm)

Trimming Line Diameter....................................................................................................................................... 0.095 inches (2.41 mm)

Cutting Path Diameter.............................................................................................................................................. 17 inches (43.18 cm)

SPECIFICATIONS

DRIVE SHAFT & CUTTING ATTACHMENT*

California / EPA Emission Control Warranty Statement

Your Warranty Rights and Obligations

The California Air Resources Board, the Environmental Protection Agency and MTD LLC (MTD) are pleased to explain the emission control system warranty on your 2005 and later small off-road engine. New small off-road engines must be designed, built and equipped to meet stringent anti-smog standards. MTD 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, Troy-Bilt will repair your small off-road engine at no cost to you including diagnosis, parts and labor.

The 2005 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 Troy-Bilt.

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. Troy-Bilt recommends that you retain all receipts covering maintenance on your small off-road engine, but Troy-Bilt 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 Troy-Bilt may deny you warranty coverage if your small offroad 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 Troy-Bilt 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 1-800-520-5520.

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 Troy-Bilt Service Center. For the nearest location please contact Troy-Bilt at: 1-800-520-5520.

• 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 Troy-Bilt 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 Troy-Bilt Service Center. Warranty services or repairs will be provided at all Authorized Troy-Bilt 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.

MANUFACTURER’S LIMITED WARRANTY FOR:

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 Troy-Bilt. 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. Troy-Bilt shall not be liable for incidental or consequential loss or damages including, without limitation, expenses incurred for substitute or replacement lawn care services, for transportation 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 1-800-520-5520 in the United States or 1-800-668-1238 in Canada.

Troy-Bilt LLC

P.O. Box 361131

Cleveland, OH 44136-0019

The limited warranty set forth below is given by Troy-Bilt LLC (“Troy-Bilt”) with respect with new merchandise purchased and used in the United States, its possessions and territories.

Troy-Bilt 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 Troy-Bilt 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 Troy-Bilt 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 Troy-Bilt by calling 1- 800-520-5520 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 Troy-Bilt.

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

A. Tune-ups - Spark Plugs, Carburetor Adjustments, Filters B. Wear items - Bump Knobs, Outer Spools,Cutting Line,

Inner Reels, Starter Pulley,Starter Ropes, Drive Belts

C. Troy-Bilt 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 Troy-Bilt’s authorized channels of export distribution.

Troy-Bilt reserves the right to change or improve the design of any Troy-Bilt product without assuming any obligation to modify any product previously manufactured.

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