MTD TB425CS User Manual

Operator’s Manual

4-Cycle

Gasoline Trimmer

Model TB425CS

IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY

P/N 769-00442 (10/02)

PRINTED IN USA

TABLE OF CONTENTS

Content Page

Calling Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Rules for Safe Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

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

Starting/Stopping Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Maintenance and Repair Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Cleaning and Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Accessories and Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inside Back Cover

Copy the model / parent part

number here:

Copy the serial number here:

FINDING MODEL NUMBER

CALLING CUSTOMER SUPPORT

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

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, Accessory Part #180890 Spark Arrestor Screen is available by contacting the service department.

This operator’s manual is an important part of your new trimmer. It will help you assemble, prepare and maintain the unit for best performance. Please read and understand what it says.

Before you start assembling your new equipment, please locate the model plate on the equipment and copy the information from it in the space provided below. This information is very important if you need help from our Customer Support Department or an authorized dealer.

If you have difficulty assembling this product or have any questions regarding the controls, operation or maintenance of this unit, please call the Customer Support Department.

Call 1-(330)-558-7220 or 1-(866)-840-6483 to reach a Customer Support representative. Please have your unit’s model number and serial number ready when you call. See the previous section to locate this information. You will be asked to enter the serial number in order to process your call.

WARNING

California Proposition 65 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.

• Inspect the unit before use. Replace damaged parts. Check for fuel leaks. Make sure all fasteners are in place and secure. Replace cutting attachment parts that are cracked, chipped or damaged in any way. Make sure the cutting attachment is properly installed and securely fastened. Be sure the cutting attachment shield is properly attached, and positioned as recommended. Failure to do so can result in personal injury to the operator and bystanders, as well as damage to the unit.

• Use only 0.095 inch (

2.41 mm) diameter Genuine

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

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

• Clear the area to be cut before each use. Remove all objects such as rocks, broken glass, nails, wire or string. They can be thrown or become entangled in the cutting attachment. Clear the area of children, bystanders, and pets. At a minimum, keep all children, bystanders and pets outside a 50-foot (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 engine and cutting attachment immediately.

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

• This unit was not designed to be used as a brushcutter. Do not attach or operate this unit with any type of brushcutting blade or brushcutting attachment.

SAFETY WARNINGS FOR GAS TRIMMERS

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

• Always stop the engine and allow it to cool before filling the fuel tank. Never remove the 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.

• 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.

• 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.

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

RULES FOR SAFE OPERATION

DANGER: Failure to obey a safety warning

will result in serious injury to yourself or to others. Always follow the safety precautions to reduce the risk of fire, electric shock and personal injury.

WARNING:Failure to obey a safety

warning can result in injury to yourself and others. Always follow the safety precautions to reduce the risk of fire, electric shock and personal injury.

CAUTION: Failure to obey a safety warning may result in property damage or personal injury to yourself or to others. Always follow the safety precautions to reduce the risk of fire, electric shock and personal injury.

SAFETY ALERT SYMBOL: Indicates danger, warning or caution. Attention is required in order to avoid serious personal injury. May be used in conjunction with other symbols or pictographs.

SYMBOL MEANING

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

NOTE: Advises you of information or instructions vital

to the operation or maintenance of the equipment.

SYMBOL MEANING

• Do not operate the engine faster than the speed needed to cut, trim or edge. Do not run the engine at high speed when you are 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 and switch the engine to off for maintenance, repair, or for changing the cutting attachment or other attachments.

Use only Genuine Factory Parts™ 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 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 the unit, with fuel in the tank, 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 the 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

WHILE OPERATING

• Never start or run the unit inside a closed room or building. Breathing exhaust fumes can kill. Operate this unit only in a well ventilated outdoor area.

• Wear safety glasses or goggles that are marked as meeting ANSI Z87.1-1989 standards. Also wear ear/hearing protection when operating this unit. Wear a face or dust mask if the operation is dusty. Long sleeve shirts are recommended.

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

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

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

• Adjust the J-handle to your size 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. See Starting/Stopping Instructions.

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

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

• Always hold the unit with both hands when operating. Keep a firm grip on both the front and rear handle 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 is rotating.

• Do not touch the engine or muffler. These parts get extremely hot from operation. They remain hot for a short time after you turn off the unit.

RULES FOR SAFE OPERATION

SYMBOL MEANING

• SAFETY ALERT SYMBOL

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

• 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.

• WEAR EYE AND HEARING PROTECTION

WARNING

Thrown objects and loud noise can cause severe eye injury and hearing loss. Wear eye protection meeting ANSI Z87.1-1989 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.

• UNLEADED FUEL

Always use clean, fresh unleaded fuel.

• OIL

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

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

• 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.

•ON/OFF STOP CONTROL

ON / START / RUN

•ON/OFF STOP CONTROL

OFF OR STOP

• HOT SURFACE WARNING

Do not touch a hot muffler or cylinder. You may get burned. These parts get extremely hot from operation. When turned off they remain hot for a short time.

• SHARP BLADE

WARNING: Sharp blade on cutting

attachment shield. To prevent serious injury, do not touch line cutting blade.

RULES FOR SAFE OPERATION

APPLICATIONS

As a trimmer:

• Cutting grass and light weeds

• Edging

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

TB425CS. Refer to Operating the EZ-Link System for a list of add-ons.

Cutting Attachment

Shield

Fuel Cap

Throttle

Control

J-Handle

Cutting Attachment

Shaft Grip

Primer Bulb

Oil Fill Plug / Dipstick

Air Filter Cover

Engine Feet

Spark Plug

On/Off Stop Control

Shaft

Housing

Starter Rope Grip

KNOW YOUR UNIT

EZ-Link™

Line Cutting Blade

Spark Plug

Muffler

Muffler Guard

Spark Arrestor

Shoulder Strap Clip

ASSEMBLY INSTRUCTIONS

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

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.

4. Hold each hex nut in the bottom clamp recess with a finger. Start screws with a large Phillips screwdriver. Do not tighten until you make the handle adjustment.

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

Fig. 1

Fig. 2

Fig. 3

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.

Decal

INSTALLING THE CUTTING 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.

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. Then rotate the shield until its screw holes line up with the holes in the cutting attachment. The shield guard should fit into the recessed pocket (Fig. 4).

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

WARNING: Never operate the trimmer

without the cutting attachment shield in place to prevent serious personal injury.

Fig. 4

Shaft

Housing

Cutting Attachment

Shield

Fig. 5

(4) Screws

Clamp

DANGER: OVERFILLING OIL CRANKCASE

MAY CAUSE SERIOUS PERSONAL INJURY. Check and maintain the proper oil level in the crank case; it is important and cannot be overemphasized. Check the oil before each use and change it as needed.

See Changing the Oil.

RECOMMENDED OIL TYPE

Using the proper type and weight of oil in the crankcase is extremely important. Check the oil before each use and change the oil regularly. Failure to use the correct oil, or using dirty oil, can cause premature engine wear and failure.

Use a high-quality SAE 30 weight oil of API (American Petroleum Institute) service class SF, SG, SH.

ADDING OIL TO CRANKCASE: INITIAL USE

NOTE: This unit is shipped without oil. In order to avoid

damage to the unit, put oil in the crankcase before you attempt to start the unit.

Your unit is supplied with one 3.4 fluid oz. (100 ml.) bottle of SAE 30 SF, SG, SH oil (Fig. 6).

NOTE: Save the bottle of oil. It can be used to measure

the correct amount during future oil changes. See Changing the Oil.

1. Unscrew the top of the bottle of oil and remove the paper seal covering the opening. Replace the top. Next, cut the tip off the funnel spout (Fig. 6).

2. Place the unit on a flat level surface.

3. Remove the oil plug / dipstick from the crankcase (Fig. 7).

Fig. 6

Fig. 8

Oil Fill

NOTE: Never add oil to the fuel or fuel tank.

5. Wipe up any oil that may have spilled and reinstall the oil fill plug / dipstick.

Check oil before each use and change as needed. Refer to Changing the Oil.

Oil Fill Plug/Dipstick

Oil Fill Hole

Fig. 7

4. Pour the entire bottle of oil into the oil fill hole (Fig. 8).

O-Ring

Funnel Spout

OIL AND FUEL INFORMATION

FUELING THE UNIT

1. Remove the fuel cap (Fig. 9).

Fig. 9

Fuel Cap

Fuel Tank

Gas Can Spout

2. Place the gas container’s spout into the fill hole on the fuel tank (Fig. 9) and fill the tank.

NOTE: Do not overfill the tank.

3. Wipe up any gasoline that may have spilled.

4. Reinstall the fuel cap.

5. Move the unit at least 30 ft. (9.1 m) from the fueling source and site before starting the engine.

NOTE: Dispose of the old gasoline in accordance to

Federal, State and Local regulations.

RECOMMENDED FUEL TYPE

Old fuel is the primary reason for improper unit performance. Be sure to use fresh, clean, unleaded gasoline.

NOTE: This is a four cycle engine. In order to avoid

damage to the unit, do not mix oil with

gasoline.

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 or form acids when stored. Use fresh fuel (less than 60 days old), when using alcohol-blended fuel.

Using Blended Fuels

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

• Always use fresh unleaded gasoline

• Use the fuel additive STA-BIL

or an equivalent

• Drain tank and run the engine dry before storing unit

Using Fuel Additives

The use of fuel additives, such as STA-BIL®Gas Stabilizer or an equivalent, will inhibit corrosion and minimize the formation of gum deposits. Using a fuel additive can keep fuel from forming harmful deposits in the carburetor for up to six (6) months. 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 gas tank.

Unleaded

Gasoline

WARNING: Add gasoline in a clean, wellventilated outdoor area. Avoid creating a source of ignition for spilt fuel.

WARNING: Never operate the unit without the fuel cap securely in place.

WARNING: Gasoline is extremely flammable and its vapors can explode if ignited. To avoid serious personal injury , 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 away from the area.

WARNING: Remove the fuel cap slowly to avoid injury from gasoline spray.

OIL AND FUEL INFORMATION

STARTING/STOPPING INSTRUCTIONS

Fig. 10

Fig. 11

Fig. 12

On/Off Stop

Control

Start/On (I)

Stop/Off (O)

STARTING INSTRUCTIONS

1. Check the oil level in the crankcase. Refer to

Checking the Oil Level.

2. Fill the fuel tank with fresh, clean unleaded gasoline. Refer to Fueling the Unit.

3. Make sure the On/Off Stop Control is in the ON (I) position (Fig. 10).

NOTE:For cold weather conditions (when the

temperature is below 40°F), flip the Cold Weather Start Lever (Fig. 13) to the choked position and continue to step 4. The choked position is down and closed. DO NOT flip this lever down if the temperature is above 40°F.

4. Fully press and release the primer bulb 10 times, slowly, until FUEL IS VISIBLE IN THE PRIMER BULB (Fig. 11). 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.

5. With the unit in the starting position (Fig. 12), DO NOT SQUEEZE THE THROTTLE CONTROL. Pull the starter rope briskly 5 times. If the engine starts to run before the fifth pull, proceed to step 6. If the engine does not start, go back to step 4.

NOTE:For cold weather conditions (when the

temperature is below 40°F), flip the Cold Weather Start Lever back to the open/up position.

6. Squeeze the throttle control to warm up the engine for 5 to 10 seconds. In cold weather, let the engine warm up for 30 to 60 seconds.

NOTE: If the engine stalls while squeezing the trigger, go

back to step 5.

Primer

Bulb

Starter Rope

Throttle Control

WARNING: Operate this unit only in a well-

ventilated area outdoors. Carbon monoxide exhaust fumes can be lethal in a confined area.

WARNING: Avoid accidental starting. Remain in the starting position when pulling the starter rope (Fig. 12). The operator and unit must be in a stable position while starting to avoid serious personal injury.

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

Cold Weather

Start Lever

(Fig. 13)

STOPPING INSTRUCTIONS

1. Release your hand from the throttle control (Fig. 12). Allow the engine to cool down by idling.

2. Put the On/Off Stop Control in the OFF (O) position (Fig. 10).

Fig. 13

Cold

Weather

Start Lever

Open

Closed

For edging when using the line head cutting attachment with EZ-Link™ models, lock the release button of the cutting attachment into the 90° edging hole or the 180°

edging hole (Fig. 16).

OPERATING THE EZ-LINK™ SYSTEM

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

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

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

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

Hedge Trimmer . . . . . . . . . . . . . . . . . . . . . . . . . . . TBHS

Snow Thrower . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBST

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

Tree Pruner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBTP

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

Removing the Cutting Attachment or Add-Ons

1. Turn the knob counterclockwise to loosen (Fig. 14).

2. Press and hold the release button (Fig. 14).

3. While firmly holding the upper shaft housing, pull the cutting attachment or add-on straight out of the EZ-Link™ coupler (Fig. 15).

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. 14).

Fig. 14

EZ-Link™ Coupler

Release Button

Guide Recess

Knob

Primary Hole

Upper Shaft Housing

90˚ Edging Hole

EZ-Link™ Coupler

2. While firmly holding the add-on, push it straight into the EZ-Link™ coupler (Fig. 15).

NOTE: Aligning the release button with the guide recess

will help installation (Fig. 14).

3. Turn the knob clockwise to tighten (Fig. 16).

Fig. 15

Fig. 16

Knob

180˚ Edging Hole

Lower Shaft Housing

Release Button

WARNING: To avoid serious personal injury

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

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

CAUTION: The cutting attachment and add-ons with the EZ-Link™ system are to be used in the primary hole unless stated otherwise in the specific add-ons operator’s manual. Using the wrong hole could lead to personal injury, or damage to the unit.

CAUTION: Lock the release button in the primary hole and securely tighten the knob before operating this unit.

OPERATING INSTRUCTIONS

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

TIPS FOR BEST TRIMMING RESULTS

• Keep the cutting attachment parallel to the ground.

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

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

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

• Slowly move the trimmer into and out of the cutting area at the desired height. Move either in a forwardbackward or side-to-side motion. Cutting shorter lengths produces the best results.

• Trim only when grass and weeds are dry.

• The life of your cutting line is dependent upon:

• Following the 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. 17). 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 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 ove

Fig. 17

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. 18) 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.

Fig. 18

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.

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. 19).

Fig. 19

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.

OPERATING INSTRUCTIONS

LINE INST ALLATION FOR THE SPEEDSPOOL

Always use Genuine Factory Parts™ 0.095 inch (2.41 mm) replacement line. Lines other than those specified may make the engine overheat or fail.

There are two methods to replace the SpeedSpool

trimming line:

• Wind the inner reel with new line

• Install a pre-wound inner reel

Winding the Inner Reel With New Line

NOTE: It Is unnecessary to remove the bump knob to

install a new trimming line.

1. Cut two pieces of 0.095 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. 20).

Top View Of The SpeedSpool

Outer Spool

Inner Reel

Fig. 20

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.

Bump Knob

Arrows

MAINTENANCE AND REPAIR INSTRUCTIONS

WARNING: Never use metal-reinforced line,

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

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.

WARNING: To prevent serious injury, never

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

FREQUENCY MAINTENANCE REQUIRED REFER TO

Before starting engine

Fill fuel tank with fresh fuel Check oil

Page 9 Page 16

Every 10 hours Clean and re-oil air filter Page 17

First change at 10 hours Every 25 hours thereafter Every 25 hours

Change oil Change oil Clean spark arrestor

Page 16 Page 16 Page 20

10 hours on new engine Every 25 hours Every 25 hours

Check rocker arm to valve clearance and adjust Check rocker arm to valve clearance and adjust Check spark plug condition and gap

Page 18 Page 18 Page 20

Line Locking Hole

Trimming Line

Line Loading Hole

Eyelet

5. Insert the line into the locking hole (Fig. 22). 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. 22) when it is inserted correctly.

3. Pull old line out of the line loading and line locking holes (Fig. 21 and 22).

4. Insert a piece of trimming line into one of the two eyelets in the outer spool. Push it up through the line loading hole in the inner reel (Fig. 21). Do not bend the line when inserting it into the eyelet.

Fig. 21

Fig. 22

6. Pull the line from the outer spool until the line is tight against the inner reel (Fig. 23).

Fig. 23

INSTALLING A PRE-WOUND REEL

1. Turn the bump knob counterclockwise and remove the bump knob, spring and foam seal (Fig. 26).

9. If winding the line becomes difficult or if the line jams, pull the ends of the line from the spool (Fig. 25). Continue winding the inner reel counterclockwise.

Fig. 24

Fig. 25

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. 24).

NOTE: Do not wind the inner reel before installing the

second piece of line.

Bump Knob

Foam Seal

Spring

Inner Reel

Fig. 26

MAINTENANCE AND REPAIR INSTRUCTIONS

SPEEDSPOOL®REPLACEMENT PARTS

Replacement Line . . . . . . . . . . . . . . . . . . . . . . . . 180120

Replacement Line Cartridge . . . . . . . . . . . . . 753-04218

Inner Reel Spring . . . . . . . . . . . . . . . . . . . . . . . . 181465

Foam Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181467

Inner Reel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181464

Bump Head™ Assembly . . . . . . . . . . . . . . . . . . . 181468

(Bump Knob, Foam Seal, Spring, ) These SpeedSpool®replacement parts can be

purchased from your local authorized dealer.

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. 25).

Releasing the Inner Reel

If the SpeedSpool®does not release line correctly, pull the ends of the line firmly from the spool (Fig. 25). 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. 27). Push the new inner reel, arrow side up, into the outer spool.

Fig. 27

4. Remove any existing line from the inner reel before cleaning. Remove any debris or grass from the knob, spring, inner reel and foam seal. Wash the inner reel with warm soapy water (Fig. 29).

Fig. 28

CLEANING THE SPEEDSPOOL

Cleaning the SpeedSpool®may be necessary if:

•A jammed or excessive line must be removed

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

1. Hold the outer spool, and unscrew the bump knob counterclockwise (Fig. 28).

2. Pull out the bump knob, spring and foam seal (Fig. 26).

Shaft

Plunger

NOTE: The inner reel must be totally dry before

reinstalling it into the outer spool. Do not lubricate the inner reel or outer spool assembly.

6. Place the inner reel into the outer spool.

7. Place the bump knob, spring and foam seal onto the inner reel (Fig. 26).

8. Press the bump knob down and tighten clockwise.

9. Install new line as described in Line Installation for

the SpeedSpool®.

5. Clean the shaft and the inner surface of the outer spool. To clean the shaft underneath the plunger, press down on the plunger (Fig. 30). Remove any dirt or debris from the shaft.

Fig. 30

Inner Reel

Fig. 29

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

MAINTENANCE AND REPAIR INSTRUCTIONS

CHECKING THE OIL LEVEL

The importance of checking and maintaining the proper oil level in the crankcase cannot be overemphasized. Check oil before each use:

1. Stop the engine and allow oil to drain into the crankcase.

2. Place the unit on a flat, level surface to get a proper oil level reading.

3. Keep dirt, grass clippings and other debris out of the engine. Clean the area around the oil fill plug/dipstick before removing it.

4. Remove the oil fill plug/dipstick and wipe off oil. Reinsert it all the way back in.

5. Remove the oil fill plug/dipstick and check the oil level. Oil should be up to the top of the dipstick (Fig. 31).

6. If the level is low, add a small amount of oil to the oil fill hole and recheck (Fig. 32). Repeat this procedure until the oil level reaches the top of the dipstick.

NOTE: Do not overfill the unit.

Top of Dipstick

O-Ring

Oil Fill Plug/Dipstick

CHANGING THE OIL

For a new engine, change the oil after the first 10 hours of operation. Change the oil while the engine is still warm. The oil will flow freely and carry away more impurities.

1. Unplug spark plug boot to prevent accidental starting.

2. Remove the oil fill plug/dipstick.

3. Pour the oil out of the oil fill hole and into a container by tipping the unit to a vertical position (Fig. 33). Allow ample time for complete drainage.

Fig. 33

Fig. 31

Fig. 32

NOTE: Make sure the O-ring is in place on the oil fill

plug/dipstick when checking and changing the oil (Fig. 32).

Oil Fill Plug/Dipstick

Oil Fill Hole

O-Ring

Full

Add 1.4-1.5 Oz.

(41-44 ml)

6. Replace the oil fill plug/dipstick.

7. Reconnect the spark plug boot.

4. Wipe up any oil residue on the unit and clean up any oil that may have spilled. Dispose of the oil according to Federal, State and local regulations.

5. Refill the crankcase with 3.4 fluid ounce (100 ml) of SAE 30 SF, SG, SH oil.

NOTE: Use the bottle and spout saved from initial use to

measure the correct amount of oil. The top of the label on the bottle measures approximately 3.4 ounces (100 ml) (Fig. 34). Check the level with the dipstick. If the level is low, add a small amount of oil and recheck. Do not overfill (Fig. 34).

Fill Level

CAUTION: To prevent extensive engine

wear and damage to the unit, always maintain the proper oil level in the crankcase. Never operate the unit with the oil level below the bottom of the dipstick.

CAUTION: Wear gloves to prevent injury when handling the unit.

Fig. 34

MAINTENANCE AND REPAIR INSTRUCTIONS

AIR FILTER MAINTENANCE

Cleaning the Air Filter

Clean and re-oil the air filter every 10 hours of operation. It is an important item to maintain. Failure to maintain the air filter will VOID the warranty.

1. Open the air filter cover. Push the tab on the right side of the cover inward. Then pull the air filter cover out and to the left (Fig. 35).

NOTE: It may be necessary to remove the fuel cap to

completely remove the air filter cover.

2. Remove the air filter (Fig. 35).

3. Wash the filter in detergent and water (Fig. 36). Rinse the filter thoroughly and allow it to dry.

4. Apply enough clean SAE 30 motor oil to lightly coat the filter (Fig. 37).

Air Filter

Air Filter Cover

Tab

Fig. 35

Fig. 36

5. Squeeze the filter to spread and remove excess oil (Fig. 38).

Fig. 39

Back Plate Slot

Slots

6. Replace the filter (Fig. 39).

NOTE: If the unit is operated without the air filter, you

will VOID the warranty.

7. Reinstall the air filter cover. Position the hooks on the left side of the air filter cover into the slots at the left side of the back plate (Fig. 39).

NOTE: It may be necessary to remove the fuel cap to

reinstall the air filter cover.

8. Swing the cover to the right until the tab on the air filter cover snaps into place in the slot on the back plate (Fig. 39).

9. Replace the fuel cap if it was removed.

Back Plate

WARNING: To avoid serious personal injury,

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

Fig. 37 Fig. 38

CARBURETOR ADJUSTMENT

The idle speed of the engine is adjustable. An idle adjustment screw is reached though a hole in the top of the engine cover (Fig. 40).

NOTE: Careless adjustments can seriously damage your

unit. An authorized service dealer should make carburetor adjustments.

Check Fuel

Old fuel is usually the reason for improper unit performance. Drain and refill the tank with fresh fuel prior to making any adjustments. Refer to Oil and Fuel Information.

Idle Adjustment Screw

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

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, 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.

Fig. 40

MAINTENANCE AND REPAIR INSTRUCTIONS

Remove Screws

Fig. 41

Engine Cover

2. Remove the two (2) screws on top of the engine cover with a Flat-head or T-20 Torx screwdriver (Fig. 42).

Fig. 42

Engine Cover

Muffler

ROCKER ARM CLEARANCE

This requires disassembly of the engine. If you feel unsure or unqualified to perform this, take the unit to an authorized service center.

NOTE: Inspect the valve to rocker arm clearance with a

feeler gauge after the first 10 hours of operation and then every 25 hours of operation thereafter.

• The engine must be cold when checking or adjusting the valve clearance.

• This task should be performed inside, in a clean, dust free area.

1. Remove the muffler cover by pressing down on it, separating it from the engine cover. Using a flat blade screwdriver, disengage the middle and front tabs and slots first. The cover will hinge off from the rear tab (Fig. 41).

Top View Of The Engine

Front Slot

Front Tab

Middle Tab

Middle Slot

Rear Slot

and Tab

MAINTENANCE AND REPAIR INSTRUCTIONS

4. Disconnect the spark plug wire.

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

6. Remove the engine cover (Fig. 42).

7. Clean dirt from around the rocker arm cover. Remove the screw holding the rocker arm cover with a large flat blade screwdriver or Torx T-25 bit (Fig. 44). Remove the rocker arm cover and gasket.

3. Remove the screw behind the engine cover (Fig. 43).

Rocker Arm Cover

Screw

Fig. 43

Fig. 44

Spark Plug Hole

8. Pull the starter rope slowly to bring the piston to the top of its travel, (known as top dead center). Check that:

• The piston is at the top of its travel while looking in the spark plug hole (Fig. 44)

• Both rocker arms move freely, and both valves are closed

If these statements are not true, repeat this step.

9. Slide the feeler gauge between the rocker arm and the valve return spring. Measure the clearance between the valve stem and rocker arm (Fig. 45). Measure both the intake and exhaust valves.

Adjusting Nuts

Feeler Gauge

Rocker Arms

Fig. 45

Fig. 46

The recommended clearance for the intake is .003 – .006 in. (.076 – 0.152 mm). The recommended clearance for the exhaust is .013 – .016 in. (.330 – 0.406 mm).

Use a standard automotive .005 in. (0.127 mm) feeler gauge. The feeler gauge should slide between the rocker arm and valve stem with a slight amount of resistance, without binding. Figure 45 shows how to measure the intake clearance, while Figure 46 shows the exhaust clearance.

Feeler Gauge

Exhaust

Adjusting Nut

Exhaust

Rocker Arm

Exhaust

Clearance:

.013–.016 in.

(.330–0.406 mm)

Exhaust Valve Stem

10. If the clearance is not within specification: a. Turn the adjusting nut using a 5/16 inch (8 mm)

wrench or nut driver (Fig. 46).

• To increase clearance, turn the adjusting nut counterclockwise.

• To decrease clearance, turn the adjusting nut clockwise.

b. Recheck both clearances, and adjust as necessary.

11. Reinstall the rocker arm cover using a new gasket. Torque the screw to 20–30 in

•lb (2.2–3.4 N•m).

12. Reinstall the engine cover. Check alignment of the cover before tightening the screws. Tighten screws.

13. Reinstall the muffler cover. Slip the rear tab on the muffler cover into the engine cover rear slot. Then slide the remaining slots into the tabs until they snap into place (Fig. 41).

14. Check the spark plug and reinstall. See Replacing the Spark Plug.

15. Replace the spark plug wire.

INTAKE

EXHAUST

Intake Valve

Stem

Intake Clearance:

.003–.006 in.

(.076–0.152 mm)

CAUTION: Do not sand blast, scrape, or

clean electrodes. Grit in the engine could damage the cylinder.

0.025 in.

(0.655 mm.)

REPLACING THE SPARK PLUG

Use only Champion RDZ19H spark plug or equivalent. The correct air gap is 0.025 in. (0.655 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 the cap from the spark plug.

2. Clean dirt from around the spark plug. Remove the spark plug from the cylinder head by turning a 5/8 in. socket counterclockwise.

3. Replace cracked, fouled or dirty spark plug. Set the air gap at 0.025 in. (0.655 mm.) using a feeler gauge (Fig. 47).

Fig. 47

4. Install a correctly-gapped spark plug in the cylinder head. Turn the 5/8 in. 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.

Fig. 48

Muffler

Spark Arrestor Screen

Spark Arrestor Cover

Screw

Tab

Slot

SPARK ARRESTOR MAINTENANCE

1. Remove the muffler cover. See Rocker Arm Clearance.

2. With a flat blade screwdriver or Torx T-20 bit, remove the screw attaching the spark arrestor cover to the muffler (Fig. 48).

3. Pull the tab on the spark arrestor cover out of the muffler. Remove the spark arrestor cover.

4. Remove the spark arrestor screen from the spark arrestor cover.

5. Clean the spark arrestor screen with a wire brush or replace it.

6. Reinstall the spark arrestor screen, spark arrestor cover and screw.

MAINTENANCE AND REPAIR INSTRUCTIONS

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.

• Lock up the unit to prevent unauthorized use or damage.

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

• Store the unit out of the reach of children.

WARNING: To avoid serious personal injury, always turn your trimmer off and allow it to cool before you clean or do any maintenance on it.

ACCESSORIES/REPLACEMENT PARTS

4-Cycle Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .181786

Spark Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .180852

Spark Arrestor Screen . . . . . . . . . . . . . . . . . . . . .180890

Replacement Line Cartridge . . . . . . . . . . . . . .753-04218

Fuel Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .753-1229

Shoulder Harness . . . . . . . . . . . . . . . . . . . . . . . .682075

For a full list of replacement parts, refer to the parts list located at the inside back cover of this manual.

NOTE: Remove the spark plug and drain all of the oil

from the cylinder before attempting to start the trimmer after storage.

4. Change the oil, referring to Changing the Oil. Dispose of the old oil in accordance to Federal, State and Local regulations.

5. Thoroughly clean the unit and inspect 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.

• Secure the unit while transporting.

• Drain the gas tank before transporting.

• Tighten gas cap before transporting.

LONG TERM STORAGE

1. Drain all gasoline from the gas tank into a container . Do not use gas that has been stored for more than 60 days. Dispose of the old gasoline in accordance to Federal, State, and Local regulations.

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

3. Allow the engine to cool. Remove the spark plug and put 1 oz. (30 ml) of high quality motor oil into the cylinder. Pull the starter rope slowly to distribute the oil. Reinstall the spark plug.

MAINTENANCE AND REPAIR INSTRUCTIONS

TROUBLESHOOTING

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 fuel Drain gas tank and add fresh fuel Improper carburetor adjustment Take to an authorized service dealer for 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 new fuel Primer bulb wasn't pressed enough Press primer bulb fully and slowly 10 times Old fuel Drain gas tank and add fresh fuel Fouled spark plug Replace or clean the spark plug Plugged spark arrestor Clean or replace spark arrestor

ENGINE WILL NOT START

ENGINE WILL NOT IDLE

ENGINE WILL NOT ACCELERATE

ENGINE LACKS POWER OR STALLS WHEN CUTTING

CAUSE ACTION

Air filter is plugged Replace or clean the air filter Old fuel Drain gas tank and add fresh fuel Improper carburetor adjustment Adjust carburetor

CAUSE ACTION

Old fuel Drain gas tank and add fresh fuel Improper carburetor adjustment Take to an authorized service dealer for 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

CUTTING ATTACHMENT WILL NOT ADVANCE LINE

CAUSE ACTION

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

CUTTING LINE ADVANCES UNCONTROLLABLY

When it is above 40°F outside, the Cold Weather Start Lever is in the CLOSED/DOWN position

When it is below 40°F outside, the Cold Weather Start Lever is in the OPEN/UP position

Flip the Cold Weather Start Lever to OPEN/UP Flip the Cold Weather Start Lever to CLOSED/DOWN

and follow the Starting Instructions

SPECIFICATIONS

ENGINE*

DRIVE SHAFT & CUTTING ATTACHMENT*

Drive Shaft Housing.................................................................................................................. Aluminum Tube (EZ-Link™)

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

Unit Weight (No Fuel, with J-handle, Cutting attachment shield and Cutting attachment) ........................ 13.15 lbs (6 kg)

Cutting Mechanism....................................................................................................................... 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)

*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, 4-Cycle

Displacement......................................................................................................................................... 1.6 cu. in. (26.2 cc)

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

Operating RPM........................................................................................................................................ 6,800 - 9,300 rpm

Idle Speed RPM ...................................................................................................................................... 3,000 - 3,600 rpm

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

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

Valve clearance (intake) ........................................................................................................ .003–.006 in. (.076–.152 mm)

Valve clearance (exhaust) ..................................................................................................... .013–.016 in. (.330–.406 mm)

Spark Plug Gap................................................................................................................................ 0.025 inch (0.655 mm)

Lubrication........................................................................................................................................................... SAE 30 Oil

Crankcase Oil Capacity................................................................................................................................ 3.4 oz (100 ml)

Fuel....................................................................................................................................................................... Unleaded

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

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

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

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

Fuel Tank Capacity........................................................................................................................................ 12 oz (355 ml)

NOTES

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