Yard-Man YM70SS User Manual

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Operator’s Manual

S

TM

TABLE OF CONTENTS

Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Rules for Safe Operation . . . . . . . . . . . . . . . . . . . . . . . . . .2 Oil and Fuel Information . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Starting/Stopping Instructions . . . . . . . . . . . . . . . . . . . . . .7 Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Maintenance and Repair Instructions . . . . . . . . . . . . . . . .9 Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E18

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.

2-Cycle Gasoline Trimmer

YM70SS

SAVE THESE INSTRUCTIONS

For service call 1-800-800-7310 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.yardman.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.

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

WARNING

THE ENGINE EXHAUST FROM THIS PRODUCT CONTAINS CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER, BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM.

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

Copyright© 2007 MTD SOUTHWEST INC, All Rights Reserved.

P/N 769-02908

(01/07)

RULES FOR SAFE OPERATION

• IMPORTANT SAFETY INSTRUCTIONS •

READ ALL INSTRUCTIONS BEFORE OPERATING

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.

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

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

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

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

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

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

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

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

Use only 0.095 inch (2.41 mm) diameter original equipment manufacturer 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.

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 D-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.

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

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.

AFTER USE

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

Clean cutting attachment with a household cleaner to remove any gum buildup.

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

2

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

SYMBOL

MEANING

 

 

 

 

 

 

 

 

• SAFETY ALERT SYMBOL

 

 

 

 

• ON/OFF STOP CONTROL

 

 

 

 

 

 

Indicates danger, warning or caution. May be used

 

 

 

 

ON / START / RUN

 

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 standards and ear protection when operating this unit. Use a full face shield when needed.

UNLEADED FUEL

Always use clean, fresh unleaded fuel

OIL

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

ON/OFF STOP CONTROL

OFF or STOP

KEEP BYSTANDERS AWAY

WARNING: Keep all bystanders, especially children and pets, at least 50 feet (15 m) from the operating area.

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.

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.

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 designed for air-cooled engines along with a fuel additive, such as STA-BIL® Gas Stabilizer or an equivalent. Add 0.8 oz. (23 ml.) of fuel additive per gallon of fuel according to the instructions on the container. NEVER add fuel additives directly to the unit's fuel tank.

Thoroughly mix the proper ratio of 2-cycle engine oil with unleaded gasoline in a separate fuel can. Use a 40:1 fuel/oil

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.

ratio. Do not mix them directly in the engine fuel tank. See the table below for specific gas and oil mixing ratios.

NOTE: One gallon (3.8 liters) of unleaded gasoline mixed with one 3.2 oz. (95 ml.) bottle of 2-cycle oil makes a 40:1 fuel/oil ratio.

NOTE: Dispose of the old fuel/oil mix in accordance to Federal, State and Local regulations.

 

 

 

 

 

 

 

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

UNLEADED GAS

 

 

2 CYCLE OIL

 

 

 

 

1 GALLON US

 

 

3.2 FL. OZ.

(3.8 LITERS)

 

 

(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.

3

KNOW YOUR UNIT

APPLICATIONS

As a trimmer:

Cutting grass and light weeds.

Edging

Decorative trimming around trees, fences, etc.

Other optional accessories may be used with the YM70SS. Refer to

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

On/Off Stop Control

D-Handle

EZ-Link™

Shaft

Housing

Line Cutting

Blade

Gear Housing

Fuel Cap

Starter Rope Grip

Shaft Grip

Throttle

Control

Cutting Attachment

Shield

Engine Stand

Cutting Attachment

Spark Plug

Blue Choke

Lever

Air Filter/

Muffler

Cover

Muffler

Primer Bulb

4

ASSEMBLY INSTRUCTIONS

On some units, the D-handle may be pre-installed, requiring only loosening screws and some adjustment. If this is the case, go to step 4.

INSTALLING AND ADJUSTING THE D-HANDLE

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

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

Shaft Grip

(4) Screws

Shaft

Housing

On/Off Stop Control

Minimum 6 inches (15.24 cm)

D-Handle

Bottom Clamp

Fig. 1

INSTALLING THE CUTTING ATTACHMENT SHIELD

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

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

1.Slide the cutting attachment shield into the shield mount on the cutting attachment. Align the screw holes in the shield with the holes in the cutting attachment (Fig. 3).

Shaft Housing

Cutting Attachment

Shield

Shield Mount

Cutting Attachment

Fig. 3

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

2.Place a hex lock nut into one of the three recessed holes on the top of the cutting attachment shield (Fig 4).

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

5.While holding the unit in the operating position (Fig. 2), position the D-handle to the location that provides you the best grip.

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

Cutting Attachment

Shield

Recessed Holes

Hex Lock Nut

Fig. 4

3.Install a screw into the hole from the bottom of the cutting attachment shield and screw it into the nut installed in step 2 (Fig 5). Do not tighten.

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

Screws

Fig. 2

Fig. 5

5

ASSEMBLY INSTRUCTIONS

OPERATING THE EZ-LINK™ SYSTEM

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

Cultivator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBGC Edger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBLE Hedge Trimmer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBAH* Straight Shaft Trimmer . . . . . . . . . . . . . . . . . . . . . . . . . . . TBSS Turbo Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBTB Pole Saw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBPS* Brushcutter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TBBC*

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

WARNING: Before you begin using any attachment, read and understand the manual that came with the attachment. Follow all safety information contained within.

Removing the Cutting Attachment or Add-Ons

2.While firmly holding the add-on, push it straight into the EZ-Link™ coupler (Fig. 7).

NOTE: Aligning the release button with the guide recess will help installation (Fig. 6).

Release Button

EZ-Link™ Coupler

Primary Hole

Upper Shaft Housing

Lower Shaft Housing

Fig. 7

3.Turn the knob clockwise to tighten (Fig. 8).

1.Turn the knob counterclockwise to loosen (Fig. 6).

2.Press and hold the release button (Fig. 6).

3.While firmly holding the upper shaft housing, pull the cutting attachment or add-on straight out of the EZLink™ coupler (Fig. 7).

Installing the Cutting Attachment or Add-Ons

WARNING: To avoid serious personal injury and damage to the unit, shut the unit off before removing or installing 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. 6).

EZ-Link™ Coupler

Release Button

 

CAUTION: Lock the release button in the primary hole (Fig. 7) and securely tighten the knob before operating this unit.

90˚ Edge

Trimming Hole

Knob

Fig. 8

CAUTION: The add-ons with the coupler system is to be used in the primary hole only. Using the wrong hole could lead to personal injury or damage to the unit.

Knob

 

For decorative trimming/edging with the line head cutting

 

 

 

Guide Recess

attachment, lock the release button of the cutting attachment

 

into the 90° hole (Fig. 8).

 

 

Fig. 6

6

STARTING & STOPPING INSTRUCTIONS

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

WARNING: Avoid accidental starting. Make sure you are in the starting position when pulling the starter rope (Fig. 11). To avoid serious injury, the operator and unit must be in a stable position while starting.

STARTING INSTRUCTIONS

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. 9).

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. 10). 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. 10).

4.Crouch in the starting position (Fig. 11), squeeze the throttle control, 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. 10).

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

7.Keep the throttle squeezed and allow the engine to warm up for 15 to 30 seconds.

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. 10). The unit is ready for use.

IF... the engine hesitates, return the blue choke lever to Position 2 (Fig. 10) 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.

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. 9).

Stop/Off (O)

Start/On ( I )

Throttle

Control

Fig. 9

Blue Choke

Lever

Primer Bulb

Fig. 10

Trimmer

Equipped With

Spring Assist

Starting ™

Throttle Control

Fig. 11

7

OPERATING INSTRUCTIONS

HOLDING THE TRIMMER

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

Before operating the unit, stand in the operating position (Fig. 12). Check for the following:

The operator is wearing eye protection and proper clothing

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

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

The unit is at waist level

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

Fig. 12

ADJUSTING TRIMMING LINE LENGTH

The Bump Head™ cutting attachment allows you to release trimming line without stopping the engine. To release more line, lightly tap the cutting attachment on the ground (Fig. 13) while operating the trimmer at high speed.

NOTE: Always keep the trimming line fully extended. Line release becomes more difficult when the cutting line gets shorter.

Fig. 13

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

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

NOTE: Do not rest the Bump Head™ on the ground while the unit is running.

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

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.

Keep the cutting attachment parallel to the ground.

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

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

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

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

Trim only when grass and weeds are dry.

The life of your cutting line is dependent upon:

Following the trimming techniques

What vegetation is being cut

Where vegetation is cut

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

DECORATIVE TRIMMING

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

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

Fig. 14

8

MAINTENANCE & REPAIR INSTRUCTIONS

MAINTENANCE SCHEDULE

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

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

WARNING: To prevent serious injury, never perform maintenance or repairs with unit running. Always service and repair a cool unit. Disconnect the spark plug wire to ensure that the unit cannot start.

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

 

 

 

Before starting

Fill fuel tank with fresh fuel

Page 3

 

 

 

Every 10 hours

Clean and re-oil air filter

Page 11

 

 

 

 

Check and clean spark arrestor

Page 11

Every 25 hours

Check spark plug condition

Page 12

 

and gap

 

 

 

 

 

Inspect exhaust port and spark

 

Every 50 hours

arrestor screen for clogging or

Page 11

obstruction to assure

 

 

 

maximum performance levels

 

 

 

 

LINE INSTALLATION

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

Always use original equipment manufacturer 0.095 in. (2.41 mm) replacement line. Line other than the specified may make the engine overheat or fail.

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

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™ counterclockwise (Fig. 15). Inspect the bolt inside the Bump Knob to make sure it moves freely. Replace the Bump Knob if damaged.

Bolt

Bump Knob™

Fig. 15

2. Remove

from the outer spool (Fig. 16).

3.Remove spring from the inner reel (Fig. 16).

Outer Spool

Spring

Inner Reel

Fig. 16

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

5.Check the indexing teeth on the inner reel and outer spool for wear (Fig. 17). If necessary, remove burrs or replace the reel and spool.

Indexing Teeth

Fig. 17

9

 

MAINTENANCE & REPAIR INSTRUCTIONS

For Use with Single

For Use with SplitLine™

Line ONLY

or Single Line

Slotted

 

Holes

Loop

Fig. 21

Fig. 18

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 18 to identify the inner reel you have.

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.

Loop

Fig. 19

Single Line Installation

Go To Step 8 for SplitLine™ Installation

6.Take approximately 18 feet (5.4 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. 19). Pull the line through the inner reel so that the loop is as small as possible.

7.Wind the lines in tight even layers, onto the reel

(Fig. 20). 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.

Fig. 20

SplitLine™ Installation

8.Take approximately 9 feet (2.7 m) of new trimming line. Insert one end of the line through one of the two holes in the inner reel (Fig. 21). 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. 21).

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. 22).

Holding Slots

Fig. 22

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. 23). 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.

Spring

Fig. 23

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 clockwise. Tighten securely.

INSTALLING A PREWOUND REEL

1.Hold the outer spool with one hand and unscrew the bump knob counterclockwise (Fig. 15). 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. 16).

3.Remove the spring from the old inner reel (Fig. 16).

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. 23).

10

MAINTENANCE & REPAIR INSTRUCTIONS

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 clockwise. Tighten securely.

AIR FILTER MAINTENANCE

Removing the Air Filter/Muffler Cover

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

1.Place the blue choke lever in Position 2.

2.Remove the four (4) screws securing the air filter/muffler cover (Fig. 24). Use a flat blade or T20 Torx bit screwdriver.

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

Blue Choke

Lever

Screws

Screws

Fig. 24

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. 25).

3.Wash the filter in detergent and water (Fig. 26). Rinse the filter thoroughly. Squeeze out excess water. Allow it to dry completely.

Air Filter

Inside Muffler

Cover

Fig. 25

 

 

 

Fig. 26

 

 

 

 

 

 

 

 

4.Apply enough clean SAE 30 oil to lightly coat the filter (Fig. 27).

5.Squeeze the filter to spread and remove excess oil (Fig. 28).

Fig. 27

 

 

 

Fig. 28

 

 

 

 

 

 

 

 

6.Replace the air filter inside the air filter/muffler cover (Fig. 25).

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. 24) and tighten.

Do not over tighten.

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

Engine

Spark Arrestor

Slots

Hood

Screw

Tabs

Spark Arrestor

Muffler

Screen

Fig. 29

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.

11

MAINTENANCE & REPAIR INSTRUCTIONS

CARBURETOR ADJUSTMENT

The idle speed of the engine is adjustable through the air filter/muffler cover (Fig. 30).

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

WARNING: The cutting attachment may spin during idle speed adjustments. Wear protective clothing and observe all safety instructions to prevent serious personal injury.

Idle Speed Screw

Fig. 30

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. 30).

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 mixture, cleaning the air filter, and adjusting the idle speed should solve most engine problems. If not and all of the following are true:

the engine will not idle

the engine hesitates or stalls on acceleration

there is a loss of engine power

Have the carburetor adjusted by an authorized service dealer.

WARNING: To prevent serious personal injury, make sure the cutting attachment has stopped rotating before you turn it off and set it down.

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-inch socket counterclockwise.

WARNING: Do not sand blast, scrape or clean electrodes. Grit in the engine could damage the cylinder.

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. 31).

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.

TRANSPORTING

Allow the engine to cool before transporting.

Drain fuel from unit.

Tighten fuel cap before transporting.

Secure the unit while transporting.

CLEANING

0.025 in.

(0.635 mm)

Fig. 31

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

Use a small brush to clean off the outside of the unit. Do not use strong detergents. Household cleaners that contain aromatic oils such as pine and lemon, and solvents such as kerosene, can damage plastic housing or handle. Wipe off any moisture with a soft cloth.

STORAGE

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

Allow the engine to cool before storing.

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

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

Store the unit out of the reach of children.

LONG TERM STORAGE

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

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

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.

12

 

TROUBLESHOOTING

 

 

 

 

 

 

 

 

 

 

 

ENGINE WILL NOT START

 

 

 

 

 

 

C A U S E

 

A C T I O N

 

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

 

 

ENGINE WILL NOT IDLE

 

 

 

 

 

 

C A U S E

 

A C T I O N

 

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

 

 

 

 

 

 

ENGINE WILL NOT ACCELERATE

 

 

 

 

 

 

C A U S E

 

A C T I O N

 

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

 

 

 

 

 

 

ENGINE LACKS POWER OR STALLS WHEN CUTTING

 

 

 

 

 

 

C A U S E

 

A C T I O N

 

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

 

 

CUTTING ATTACHMENT WILL NOT ADVANCE LINE

 

 

 

 

 

 

C A U S E

 

A C T I O N

 

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

 

 

 

 

 

 

CUTTING LINE ADVANCES UNCONTROLLABLY

 

 

 

 

 

 

 

C A U SE

 

 

A C T I O N

 

 

Oil, cleaner or lubricant in cutting head

 

 

Clean and thoroughly dry the cutting head

 

 

 

 

 

 

 

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

13

 

SPECIFICATIONS

 

 

 

 

ENGINE*

 

 

 

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

Air-Cooled, 2-Cycle

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

1.25 in. (31.75 mm)

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

1.9 cu in. (31 cc)

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

Centrifugal

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

2,800 - 3,600 rpm

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

7,200+ rpm

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

Electronic

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

Momentary Switch

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

0.025 in. (0.635 mm)

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

Fuel/Oil Mixture

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

40:1

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

Diaphragm, All-Position

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

Spring Assist Starting™ Auto Rewind

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

Baffled with Guard

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

Manual Spring Return

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

13 oz. (384 ml)

DRIVE SHAFT & CUTTING ATTACHMENT*

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

Steel Tube (EZ-Link)

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

Finger-Tip Trigger

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

13 lbs. (6 kg)

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

Bump Head™

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.

14

NOTES

15

MANUFACTURER’S LIMITED WARRANTY FOR:

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

Yard-Man 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 Yard-Man 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 Yard-Man 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 Yard-Man by calling 1- 800-800-7310 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 Yard-Man.

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.Yard-Man 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 Yard-Man’s authorized channels of export distribution.

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

No implied warranty, including any implied warranty of merchantability or fitness for a particular purpose, applies after the applicable period of express written warranty above as to the parts as identified. No other express warranty or guaranty, whether written or oral, except as mentioned above, given by any person or entity, including a dealer or retailer, with respect to any product shall bind Yard-Man. 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. YardMan 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 1-800-800-7310 in the United States or 1-800-668-1238 in Canada.

Yard-Man LLC

P.O. Box 361131

Cleveland, OH 44136-0019

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