Troy-Bilt TB90BC User Manual [en, es, fr]

Operator’s Manual

Starting

2-Cycle Gasoline Trimmer/

Brushcutter

TB90BC

SAVE THESE INSTRUCTIONS

For service call 1-800-828-5500 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.

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 769-03454 (03/08)

TABLE OF CONTENTS

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

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

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

Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Oil and Fuel Information . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Starting/Stopping Instructions . . . . . . . . . . . . . . . . . . . . . .9

Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Maintenance and Repair Instructions . . . . . . . . . . . . . . .12

Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . .19, 20

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E22

WARNING

THE ENGINE EXHAUST FROM THIS PRODUCT CONTAINS

CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO

CAUSE CANCER, BIRTH DEFECTS OR OTHER

REPRODUCTIVE HARM.

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 0.105 inch (2.67 mm) diameter original equipment manufacturer replacement 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 cap of the fuel tank, 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. Slowly remove the fuel cap only after stopping engine. Do not smoke while fueling or mixing fuel. Wipe up any spilled fuel from the unit immediately. Always wipe unit dry before using.

• Move the unit at least 30 feet (9.1 m) from the fueling source and site before starting the engine. Do not smoke or allow sparks and open flames near 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 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.

• 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 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.

WHILE OPERATING WITH CUTTING BLADE

• Read and understand all safety warnings before operating this unit.

• Always use the shoulder harness when using the brush blade accessory.

• Keep the J-handle between the operator and cutting attachment or blade at all times.

• NEVER cut when the cutting blade is 30 inches (76 cm) or more above the ground level.

• Blade thrust may occur when the spinning blade contacts an object that it does not immediately cut. Blade thrust can be violent enough to propel the unit and/or operator in any direction, possibly causing a loss of control. Blade thrust can occur without warning if the blade snags, stalls or binds. This is more likely to occur in areas where it is difficult to see the material being cut.

• For operation with the brush blade, do not cut anything thicker than 1/2 inch or a violent kickback could occur.

• Do not attempt to touch or stop the blade when it is rotating.

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

• IMPORTANT SAFETY INSTRUCTIONS •

• A coasting blade can cause injury while it continues to spin after the engine is stopped or the throttle trigger is released. Maintain proper control until the blade has completely stopped rotating.

• Do not run the unit at high speed when not cutting.

• If you strike or become entangled with a foreign object, stop the engine immediately and check for damage. Have any damage repaired before attempting further operations. Do not operate unit with a bent, cracked or dull blade. Discard blades that are bent, warped, cracked or broken.

• Do not sharpen the cutting blade. Sharpening the blade can cause the blade tip to break off while in use. This can result in severe personal injury. Replace the blade.

• Do not use the cutting blade for edging or as an edger; severe personal injury to yourself or others may incur. Use the cutting blade only for the purpose described in this manual.

• Stop the engine IMMEDIATELY if you feel excessive vibration. Vibration is a sign of trouble. Inspect thoroughly for loose nuts, bolts or damage before continuing. Repair or replace affected parts as necessary.

After Use

• Clean cutting blades with a household cleaner to remove any gum buildup. Oil the blade with machine oil to prevent rust.

• Lock up and store the cutting blade in an appropriate area to protect the blade from unauthorized use or damage.

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

RULES FOR SAFE OPERATION

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

• 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.

• 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.

• BRUSHCUTTERS - REPLACE DULL BLADE

Do not sharpen the cutting blade. Sharpening the blade can cause the blade tip to break off while in use. This can result in severe personal injury.

• TRIMMER/ BRUSHCUTTER SAFETY WARNING: Thrown objects and rotating

cutter can cause severe injury. Keep bystanders, especially children and pets, at least 50 feet (15 m) away from the cutting area. The cutting attachment shield must be used when using the trimmer cutting attachment.

On some units, the J-handle may be pre-installed. In this case, loosen the screws and go to step 5.

INSTALL AND ADJUST THE J-HANDLE

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

(4) Screws

Top Clamp

J-Handle

Middle Clamp

Bottom Clamp

Nuts

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.

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

Fig. 1

KNOW YOUR UNIT

Cutting Attachment

Shield

Fuel Cap

Throttle

Control

Throttle Lock-Out

J-Handle

Cutting Attachment

Gear Housing

Shaft Grip

Primer Bulb

Blue Choke

Lever

Spark Plug

Engine Stand

On/Off Stop Control

Shaft

Housing

Starter Rope Grip

Blade Shield /

Shield Mount

Brush Blade

Line Cutting

Blade

Muffler

Shoulder Strap Clip

EZ-Link™

Air Filter/

Muffler

Cover

ASSEMBLY INSTRUCTIONS

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 preinstalled.

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

7. Tighten the clamp screws evenly, until the J-handle is secure.

Fig. 2

Fig. 3

Decal

APPLICATIONS

As a trimmer:

• Cutting grass and light weeds

• Edging

• Decorative trimming around trees, fences, etc. NOTE: The below illustration may differ slightly from your unit.

For example, the picture shows a straight shaft. Your unit may have a curved shaft.

INSTALL THE HARNESS

1. Push the strap through the center of the buckle.

2. Pull the strap over the cross bar and down through the slot in the buckle (Fig. 5).

3. Put the harness on over head and onto shoulder. Snap it on to the support fitting (Fig. 6).

4. Adjust length to fit the operator’s size. Pull tab to lengthen, pull strap to shorten (Fig 7).

Support Fitting

Fig. 6

Fig. 7

REMOVE AND INSTALL THE CUTTING ATTACHMENT SHIELD

Remove the cutting attachment shield when using the unit as a brushcutter

Remove the cutting attachment shield from the shield mount by removing the three (3) screws with a flat blade screwdriver (Fig. 4). Store parts for future use.

REMOVE THE CUTTING ATTACHMENT AND INSTALL THE CUTTING BLADE

NOTE: To make cutting blade removal and installation easier, place

the unit on the ground or on a work bench

Remove the Cutting Attachment Shield

See Remove and Install the Cutting Attachment Shield.

Remove the Cutting Attachment

Align the shaft bushing hole with the locking rod slot and insert the locking rod into the shaft bushing hole (Fig. 8).

(3) Screws

Cutting

Attachment

Shield

Shield Mount

Gear Housing

Fig. 4

ASSEMBLY INSTRUCTIONS

WARNING: The cutting attachment shield should

NOT be installed when operating the unit with a blade. Remove the cutting attachment shield before removing or installing the blade.

WARNING: Always use the shoulder harness

when using the cutting blade to avoid serious personal injury.

WARNING: The gear housing gets hot with use.

It can result in injury to the operator. The housing remains hot for a short time even after the unit is turned off. Do not touch the gear housing until it has cooled.

Fig. 5

Install the cutting attachment shield when using the unit as a grass trimmer

Install the cutting attachment shield on the shield mount by inserting the three (3) screws into the shield mount. Tighten securely with a flat blade screwdriver (Fig. 4).

WARNING: To avoid serious personal injury, the

cutting attachment shield MUST be in place at all times while operating the unit as a grass trimmer.

Shaft Bushing Hole

Locking Rod Slot

Output Shaft

Bushing

Locking Rod

Output Shaft

Fig. 8

2. Hold the locking rod in place by grasping it next to the boom of the unit (Fig. 9).

3. While holding the locking rod, remove the cutting attachment by turning it clockwise off of the output shaft (Fig. 10). Store the cutting attachment for future use.

NOTE: The blade retainer

under the cutting attachment will be used when installing the cutting blade.

Fig. 9

Cutting Attachment

Locking Rod

Slot

Locking Rod

Fig. 10

Fig. 15

Cutting Attachment

Locking Rod

Clockwise

6. Remove the locking rod.

7. Install the cutting attachment shield. Refer to Remove and

Install the Cutting Attachment Shield.

Blade Retainer

Output Shaft

Bushing

Fig. 14

4. Remove the nut, blade retainer and blade. Store the nut and blade together for future use in a secure place. Store out of children’s reach.

Install the Cutting Attachment

Align the shaft bushing hole with the locking rod slot and insert the locking rod into the shaft bushing hole (Fig. 8). Place the blade retainer on the output shaft with the flat surface against the output shaft bushing (Fig. 15). Screw the cutting attachment counterclockwise onto the output shaft. Tighten securely.

NOTE: The blade retainer must be installed on the output shaft

in the position shown for the cutting attachment to work correctly.

WARNING: To avoid serious personal injury, the

cutting attachment shield MUST be in place at all times while operating the unit as a trimmer.

Install the Cutting Blade

4. Place the cutting blade on the output shaft bushing (Fig. 11).

Shield Mount

Locking Rod

Cutting

Blade

Blade Retainer

Nut

Output Shaft

Bushing

Pilot Hole

Fig. 11

ASSEMBLY INSTRUCTIONS

WARNING: To avoid serious personal injury,

always wear gloves while handling or installing the blade.

5. Make sure that the cutting blade is centered on the pilot step and sitting flat against the output shaft bushing (Fig. 12).

WARNING: If the cutting blade is off-center, the

unit will vibrate and the blade may fly off, causing possible serious personal injury.

Fig. 12

Pilot Step

6. Align the shaft bushing hole with the locking rod slot and insert the locking rod into the bushing hole (Fig. 8).

7. Put the blade retainer and nut on the output shaft. Make sure that the blade is installed correctly.

8. Tighten nut counterclockwise against the blade while holding the locking rod:

• If using a torque wrench and a 13 mm socket tighten to: 325

- 335 in•lb, 27 - 28 ft.•lb, 37 - 38 N•m.

• Without a torque wrench, use a 13 mm closed-end or socket

wrench, turning the nut until the blade retainer is snug against the shaft bushing. Make sure that the blade is installed correctly, then rotate the nut an additional 1/4 to 1/2 turn counterclockwise (Fig. 13).

Fig. 13

1/4-1/2 turn

Counterclockwise

9. Remove the locking rod from the locking rod slot.

WARNING: To avoid serious personal injury or

damage to the unit, do not start or operate this unit with the locking rod in the locking rod slot.

WARNING:

Do not sharpen the cutting blade. Sharpening the blade can cause the blade tip to break off while in use. This can result in severe personal injury. Replace the blade.

REMOVE THE CUTTING BLADE AND INSTALL THE CUTTING ATTACHMENT

Remove the Cutting Blade

1. Align the shaft bushing hole with the locking rod slot and insert the locking rod into the bushing hole (Fig. 8).

2. Hold the locking rod in place by grasping it next to the boom of the unit (Fig. 9).

3. While holding the locking rod, loosen the nut on the blade by turning it clockwise with a 13 mm closed-end or socket wrench (Fig. 14).

WARNING: To avoid serious personal injury,

always wear gloves while handling or installing the blade.

For edging (when using the line head cutting attachment with EZLink™ models), lock the release button of the cutting attachment into the 90° edging hole (Fig. 18).

OPERATING THE EZ-LINk™ SYSTEM

The EZ-Link™ system enables the use of these optional Add-Ons:

Cultivator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GC720

Edger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LE720

Hedge Trimmer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AH720*

Straight Shaft Trimmer . . . . . . . . . . . . . . . . . . . . . . . . . . SS720

Turbo Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TB720

Pole Saw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PS720*

Brushcutter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BC720*

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

Removing the Cutting Attachment or Add-On

1. Turn the knob counterclockwise to loosen (Fig. 16).

2. Press and hold the release button (Fig. 16).

3. While firmly holding the upper shaft housing, pull the cutting attachment or add-on straight out of the EZ-Link™ coupler (Fig. 17).

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 (Fig. 16).

Fig. 16

EZ-Link™ Coupler

Release Button

Guide Recess

Knob

Primary Hole

Upper Shaft Housing

EZ-Link™ Coupler

2. While firmly holding the add-on, push it straight into the EZ-Link™ coupler (Fig. 17).

NOTE: Aligning the release button with the guide recess will

help installation (Fig. 16).

3. Turn the knob clockwise to tighten (Fig. 18).

Fig. 17

Fig. 18

Knob

Lower Shaft Housing

Release Button

90˚ Edging Hole

(Trimmer Only)

CAUTION: Lock the release button in the

primary hole and securely tighten the knob before operating this unit.

WARNING: To avoid serious personal injury and

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

CAUTION: Add-ons are to be used in the

primary hole only. Using the wrong hole could lead to personal injury or damage to the unit.

WARNING: When using any attachment, read

and understand that attachment’s specific manual before you begin operation. Follow all applicable safety information.

ASSEMBLY INSTRUCTIONS

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 2-cycle oil with this unit.

If unavailable, use a good 2-cycle oil de-signed 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.

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

Federal, State and Local regulations.

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 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.

STARTING INSTRUCTIONS

Fig. 19

Throttle Control

STOPPING INSTRUCTIONS

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

2. Press and hold On/Off Stop Control in the OFF (O) position until engine comes to a complete stop (Fig. 19).

Fig. 21

Starting Position

Trimmer

Equipped With

Spring Assist

Starting ™

Start/On ( I )

Stop/Off (O)

Throttle

Control

Throttle

Lock-Out

Fig. 20

Blue Choke

Lever

Primer

Bulb

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 (Fig. 19).

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. 20). 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. Place the blue choke lever in Position 1 (Fig. 20).

4. Crouch in the starting position (Fig. 21), squeeze the throttle lock-out and throttle control (Fig. 19), and pull the starter rope out with a controlled and steady

motion 5 times. 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. Place the blue choke lever in Position 2 (Fig. 20).

6. While squeezing the throttle lock-out and throttle control, pull the starter rope out with a controlled and steady motion until the engine starts.

7. Squeeze the throttle lock-out and the throttle control for 15 to 30 seconds to warm up the engine.

NOTE: Engine may take longer to warm up and reach maximum operating speed at colder temperatures.

NOTE: Unit is properly warmed up when engine accelerates without hesitation.

8. Once the engine is warmed up, place the blue choke lever in Position 3 (Fig. 20). The unit is ready for use.

IF...

the engine hesitates, return the blue choke lever to Position 2 (Fig. 20) and continue warm-up.

IF...

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

IF... the engine fails to start after a few attempts, place the

blue choke lever in Position 3 and squeeze the throttle control. Pull the starter rope out with a controlled and steady motion 3 to 8 times. The engine should start. If not, repeat.

IF WARM...

If the engine is already warm, start the unit

with the blue choke lever in Position 2. After the unit starts, move the blue choke lever to Position 3.

STARTING/STOPPING INSTRUCTIONS

WARNING: Avoid accidental starting. Make sure you are

in the starting position when pulling the starter rope (Fig. 21).

To avoid serious injury, the operator and unit must

be in a stable position while starting.

Make sure that any Add-On item is installed correctly and secure before starting the unit.

WARNING:

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

OPERATING INSTRUCTIONS

Fig. 24

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. 24).

USING THE CUTTING BLADE

WARNING:

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

Fig. 25

Before operating the unit with the cutting blade, stand in the operating position (Fig. 25). Refer to Holding the Trimmer.

WARNING: Do not use the cutting blade for

edging or as an edger. Severe personal injury to yourself or others can result.

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

unit is running.

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

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.

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. 23) while operating the trimmer at high speed.

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

becomes more difficult as the cutting line becomes shorter.

Fig. 23

Each time the head is bumped, about 1 inch (25.4 mm) of trimming line is released. A blade in the cutting attachment shield will cut the line to the proper length if excess line is released. For best results, tap the Bump Head™ on bare ground or hard soil. If line release is attempted in tall grass, the engine may stall. Always keep the trimming line fully extended. Line release becomes more difficult as the cutting line becomes shorter.

HOLDING THE TRIMMER

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

22). 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

Once you are in the operating position, hook the shoulder strap to the unit.

WARNING: Always wear eye, hearing, foot and

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

Fig. 22

TIPS FOR BEST TRIMMING RESULTS

• For best trimming results, operate unit at full throttle.

• 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 left to right whenever possible. Cutting to the right 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-toside 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: — Proper adherence of trimming techniques (explained above) — What vegetation is 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.

Fig. 26

Cutting Blade Operating Tips

To establish a rhythmic cutting procedure:

• Plant feet firmly, comfortably apart.

• Bring the engine to full throttle before entering the material to be cut. At full throttle the blade has maximum cutting power and is less likely to bind, stall or cause blade thrust (which can result in serious personal injury to the operator or others).

• Cut while swinging the upper part of your body from left to right.

• Always release the throttle trigger and allow the engine to return to idle speed when not cutting.

• When you are finished, always unsnap the unit from the harness before taking off the harness.

• Swing the unit in the opposite direction as the blade spins, which increases the cutting action.

• After the return swing, move forward to the next area to be cut plant your feet again.

WARNING:

The blade continues to spin after the engine is turned off. The coasting blade can seriously cut you if accidentally touched.

WARNING: Bl

ade thrust may occur when the spinning blade contacts an object that it does not immediately cut. Blade thrust can be violent enough to cause the unit and/or operator to be propelled in any direction, and possibly lose control of the unit. Blade thrust can occur without warning if the blade snags, stalls or binds. This is more likely to occur in areas where it is difficult to see the material being cut.

WARNING: Do not clear away any cut material

with the engine running or blade turning. To avoid serious personal injury, turn off the engine. Allow the blade to stop before removing materials wrapped around the blade shaft.

OPERATING INSTRUCTIONS

• The cutting blade is designed with a second cutting edge. You can use it by removing the blade, turning it upside down, and reinstalling it.

To reduce the chance of material wrapping around the blade, follow these steps:

• Cut at full throttle

• Swing the unit into material to be cut from your left to your right (Fig. 26)

WARNING: Do not sharpen the cutting blade.

Sharpening the blade can cause the blade tip to break off while in use. This can result in severe personal injury to yourself or others. Replace the blade.

• Avoid the material just cut as you make the return swing

Fig. 30

NOTE: SplitLine™ can only be used with the inner reel with the

slotted holes. Single line can be used on either type of inner reel. Use Figure 30 to identify the inner reel you have.

Slotted

Holes

For Use with SplitLine™

or Single Line

For Use with Single

Line ONLY

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.

FREQUENCY MAINTENANCE REQUIRED REFER TO

Before starting engine Fill fuel tank with fresh fuel Page 8 Every 10 hours Clean and re-oil air filter Page 14

Every 25 hours

Check and clean spark arrestor Check spark plug condition and gap

Page 14 Page 15

Every 50 hours

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

Page 14

Indexing Teeth

Fig. 28

Fig. 29

LINE INSTALLATION

This section covers both SplitLine™ and standard single line installation.

Always use original equipment manufacturer 0.105 in. (2.67 mm) replacement line. Other types of line may make the engine overheat or fail.

There are two methods to replace the trimming line:

• Wind the inner reel with new line

• Install a prewound inner reel

Winding the Existing Inner Reel

1. Hold the outer spool with one hand and unscrew the Bump Knob clockwise (Fig. 27). Inspect the bolt inside the bump knob to make sure it moves freely. Replace the bump knob if damaged.

2. Remove the inner reel from the outer spool (Fig. 27).

3. Remove spring from the inner reel (Fig. 27).

4. Use a clean cloth to clean the the inner reel, spring, shaft and inner surface of the outer spool (Fig. 28).

5. Check the indexing teeth on the inner reel and outer spool for wear (Fig. 29). If necessary, remove burrs or replace the reel and spool.

Inner Reel

Spring

Outer Spool

Bump Knob

Bolt

Fig. 27

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.

• MAINTENANCE SCHEDULE •

Fig. 36

Screws

Blue Choke

Lever

Fig. 31

Fig. 32

Fig. 34

Fig. 35

NOTE: 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.

Single Line Installation

Go To Step 8 for SplitLine™ Installation

6. Take approximately 18 feet (6 m) of new trimming line, loop it into two equal lengths. Insert each end of the line through one of the two holes in the inner reel (Fig. 31). Pull the line through the inner reel so that the loop is as small as possible.

Spring

7. Wind the lines in tight even layers, onto the reel (Fig. 32). Wind the line in the direction indicated on the inner reel. Place your index finger between the two lines to stop the lines from overlapping. Do not overlap the ends of the line. Proceed to step 11.

SplitLine™ Installation

8. Take approximately 9 feet (3 m) of new trimming line. Insert one end of the line through one of the two holes in the inner reel (Fig. 33). Pull the line through the inner reel until only about 4 inches is left out.

9. Insert the end of the line into the open hole in the inner reel and pull the line tight to make the loop as small as possible (Fig. 33).

Loop

Holding Slots

13. Insert the ends of the line through the eyelets in the outer spool and place inner reel with spring inside the outer spool (Fig. 35). Push the inner reel and outer spool together. While holding the inner reel and outer spool, grasp the ends and pull firmly to release the line from the holding slots in the reel.

10. Before winding, split the line back about 6 inches.

11. Wind the line in tight even layers in the direction indicated on the inner reel.

NOTE: Failure to wind the line in the direction indicated will cause

the cutting attachment to operate incorrectly.

12. Insert the ends of the line into the two holding slots (Fig. 34).

Fig. 33

MAINTENANCE AND REPAIR INSTRUCTIONS

AIR FILTER MAINTENANCE Removing the Air Filter/Muffler Cover

1. Place the blue choke lever in Position 2.

2. Remove the four (4) screws securing the air filter/muffler cover (Fig. 36). Use a flat blade or T20 Torx bit screwdriver.

3. Pull the cover from the engine. Do not force.

INSTALLING A PREWOUND REEL

1. Hold the outer spool with one hand and unscrew the bump knob

clockwise (Fig. 27). Inspect the bolt inside the bump knob to make sure it moves freely. Replace the bump knob if damaged.

2. Remove the old inner reel from the outer spool (Fig. 27).

3. Remove the spring from the old inner reel (Fig. 27).

4. Place the spring in the new inner reel.

NOTE: The spring must be assembled on the inner reel before

reassembling the cutting attachment.

5. Insert the ends of the line through the eyelets in the outer

spool (Fig. 35).

6. Place the new inner reel inside the outer spool. Push the inner

reel and outer spool together. While holding the inner reel and outer spool, grasp the ends and pull firmly to release the line from the holding slots in the spool.

7. Hold the inner reel in place and install the bump knob by

turning counterclockwise. Tighten securely.

WARNING: To avoid serious personal injury,

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

NOTE: The spring must be assembled on the inner reel before

reassembling the cutting attachment.

14. Hold the inner reel in place and install the bump knob by

turning counterclockwise. Tighten securely.

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. 41). Remove the screw using either a torx #20 or flat blade screwdriver.

Fig. 41

Spark Arrestor

Screen

Spark Arrestor

Hood

Screw

Muffler

Engine

Tabs

Slots

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 your air filter properly can result in poor performance or can cause permanent damage to your engine.

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. 37).

3. Wash the filter in detergent and water (Fig. 38). Rinse the filter thoroughly. Squeeze out excess water. Allow it to dry completely.

Fig. 37

Fig. 38

Fig. 39

Fig. 40

6. Replace the air filter inside the air filter/muffler cover (Fig. 37). 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. 36) and tighten.

Do not over tighten.

Air Filter

Inside Muffler

C over

MAINTENANCE AND REPAIR INSTRUCTIONS

4. Apply enough clean SAE 30 oil to lightly coat the filter (Fig. 39).

5. Squeeze the filter to spread and remove excess oil (Fig. 40).

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.

WARNING:

If the spark arrestor hood and spark arrestor screen are not tightened securely, they could fall off causing damage to the unit and possible serious personal injury.

MAINTENANCE AND REPAIR INSTRUCTIONS

Fig. 42

Idle Speed

Screw

CARBURETOR ADJUSTMENT

The idle speed of the engine is adjustable through the air filter/muffler cover (Fig. 42).

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 speed 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.

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.

42). Turn the idle speed screw in, clockwise, 1/8 of a turn at a time (as needed) until the engine idles smoothly.

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.

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.

REPLACING THE SPARK PLUG

Use a Champion RDJ7Y spark plug (or equivalent). The correct air gap is 0.025 inch (0.635 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 0.025 in. (0.635 mm) using a feeler gauge (Fig. 43).

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.

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: The cutting attachment may spin

during idle speed adjustments. Wear protective clothing and observe all safety instructions to prevent serious personal injury.

WARNING: To prevent serious personal injury,

make sure the cutting attachment has stopped rotating before you turn it off and set it down.

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.

0.025 in.

(0.635 mm)

Fig. 43

TRANSPORTING

• Allow the engine to cool before transporting.

• Drain fuel from unit.

• Tighten fuel cap before transporting.

• Secure the unit while transporting.

TROUBLESHOOTING

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

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 or take

to an authorized service dealer for an adjustment

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 Place blue choke lever in position 3, 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 The outside temperature is below 40º F Place blue choke lever in position 3, pull the starter rope up to

10-15 times The outside temperature is above 90º F Place blue choke lever in position 3, squeeze the throttle control

and pull the starter rope

CAUSE ACTION

Old or improperly mixed fuel Drain gas tank and add fresh fuel mixture Improper carburetor adjustment Adjust according to the Carburetor Adjustments section or 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

Old or improperly mixed fuel Drain gas tank and add fresh fuel mixture Improper carburetor adjustment Adjust according to the Carburetor Adjustments section or 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

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

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

ENGINE WILL NOT START

ENGINE WILL NOT IDLE

ENGINE WILL NOT ACCELERATE

ENGINE LACKS POWER OR STALLS WHEN CUTTING

CUTTING ATTACHMENT WILL NOT ADVANCE LINE

CUTTING LINE ADVANCES UNCONTROLLABLY

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............................................................................................................................................................ 2,600 - 3,600 rpm

Operating RPM ....................................................................................................................................................................... 6,500+ rpm

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

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

Spark Plug Gap ........................................................................................................................................................ 0.025 in. (0.635 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 with Lock-Out

Approximate Unit Weight (No fuel, with J-handle, cutting attachment and shield)....................................................... 14.75 lbs. (6.5 kg)

Cutting Mechanism ...................................................................................................... 4-Tooth Cutting Blade, Dual String Cutting Head

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

Line Spool Diameter .................................................................................................................................................. 4 inches (101.6 mm)

Trimming Line Diameter............................................................................................................................................ 0.105 inch (2.67 mm)

Cutting Path Diameter, Cutting Attachment .............................................................................................................. 18 inches (45.7 cm)

Cutting Path Diameter, Cutting Blade .......................................................................................................................... 8 inches (204 mm)

Shoulder Harness......................................................................................................................................................... Single Quick-Snap

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 Troy-Bilt LLC (Troy-Bilt) are pleased to explain the emission control system warranty on your 2007 and later small off-road engine. In California and the 49 states, new small off-road engines must be designed, built and equipped to meet the state’s stringent anti-smog standards. Troy-Bilt 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-injection 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 2007 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 should however 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 1-800-828-5500.

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: 1-800-828-5500.

• 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.

Emission Warranty Parts List:

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. Valves and Cam are additionally included if your engine is a 4-Stroke Model.

CALIFORNIA EVAPORATIVE EMISSION CONTROL WARRANTY STATEMENT

Your Warranty Rights and Obligations

The California Air Resources Board and Troy-Bilt LLC (Troy-Bilt) is pleased to explain the evaporative emission control system’s warranty on your 2007 model year and later small off-road (equipment type) engine. In California, new equipment that use small off-engines must be designed, built, and equipped to meet the State’s stringent anti-smog standards Troy-Bilt must warrant the evaporative emission control system on your small off-road Lawn & Garden engine for the period listed below provided there has been no abuse, neglect or improper maintenance of your equipment.

Your evaporative emission control system may include parts such as: carburetors, fuel tanks, fuel lines, fuel caps, valves, canisters, filters, vapor hoses, clamps, connectors, and other associated components. For engines less than or equal to 80 cc, only the fuel tank is subject to the evaporative emission control warranty requirements of this section. The displacement of your small off road engine is less than 80 cc.

Manufacturer’s Warranty Coverage

This evaporative emission control system is warranted for two years. If any evaporative emission-related part on your equipment is defective, the part will be repaired or replaced by Troy-Bilt.

Owner’s Warranty Responsibilities

• As the small off-road Lawn & Garden engine owner, you are responsible for performance of the required maintenance listed in your owner’s manual. Troy-Bilt recommends that you retain all receipts covering maintenance on your Lawn & Garden Engine but Troy-Bilt cannot deny warranty solely for the lack of receipts.

• As the small off-road Lawn & Garden engine owner, you should however be aware that the Troy-Bilt may deny you warranty coverage if your fuel tank has failed due to abuse, neglect, or improper maintenance or unapproved modifications.

• You are responsible for presenting your Lawn & Garden fuel tank to Troy-Bilt distribution center or service center as soon as the problem exists. The warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days. If you have a question regarding your warranty coverage, you should contact Troy-Bilt at 1-800-828-5500.

Defects Warranty Requirements

(a) The warranty period begins on the date the engine or equipment is delivered to an ultimate purchaser. (b) General Evaporative Emissions Warranty Coverage. The fuel tank must be warranted to the ultimate purchaser and any subsequent owner

that the evaporative emission control system when installed was: (1) Designed, built, and equipped so as to conform with all applicable regulations; and (2) Free from defects in materials and workmanship that causes the failure of a warranted part for a period of two years. (c) The warranty on evaporative emissions-related parts will be interpreted as follows: (1) Any warranted part that is not scheduled for replacement as required maintenance in the written instructions must be warranted for the warranty

period defined in subsection (b)(2). If any such part fails during the period of warranty coverage, it must be repaired or replaced by Troy-Bilt. Any

such part repaired or replaced under the warranty must be warranted for a time not less than the remaining warranty period. (2) Any warranted part that is scheduled only for regular inspection in the written instructions must be warranted for the warranty period

defined in subsection (b)(2). A statement in such written instructions to the effect of “repair or replace as necessary” will not reduce

the period of warranty coverage. Any such part repaired or replaced under warranty must be warranted for a time not less than the

remaining warranty period. (3) Any warranted part that is scheduled for replacement as required maintenance in the written instructions must be warranted for the period

of time prior to the first scheduled replacement point for that part. If the part fails prior to the first scheduled replacement, the part must be

repaired or replaced by the Troy-Bilt. Any such part repaired or replaced under warranty must be warranted for a time not less than the

remainder of the period prior to the first scheduled replacement point for the part. (4) Repair or replacement of any warranted part under the warranty provisions of this article must be performed at no charge to the owner

at a warranty station. (5) Not withstanding the provisions of subsection (4) above, warranty services or repairs must be provided at distribution centers that are

franchised to service the subject engines or equipment. (6) The owner must not be charged for diagnostic labor that leads to the determination that a warranted part is in fact defective, provided

that such diagnostic work is performed at a warranty station. (7) Throughout the evaporative emission control system’s warranty period set out in subsection (b)(2), Troy-Bilt must maintain a supply of

warranted parts sufficient to meet the expected demand for such parts. (8) Manufacturer approved replacement parts must be used in the performance of any warranty maintenance or repairs and must be

provided without charge to the owner. Such use will not reduce the warranty obligations of the manufacturer issuing the warranty. (9) The use of any add-on or modified parts will be grounds for disallowing a warranty claim made in accordance with this article. The

manufacturer issuing the warranty will not be liable under this Article to warrant failures of warranted parts caused by the use of an

add-on or modified part. (10) Troy-Bilt shall provide any documents that describe the warranty procedures or policies within five working days of request by

the Air Resources Board.

Emission Warranty Parts List

(1) Fuel Tank Written instructions for the maintenance and use of the evaporative emissions control system by the owner shall be furnished with each

new engine or equipment.

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 1-800-828-5500 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- 800-828-5500 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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Troy-Bilt TB90BC User Manual [en, es, fr]

Specifications and Main Features

Frequently Asked Questions

User Manual