YM26CO - Lawn mower MTD - Free user manual and instructions

USER MANUAL YM26CO MTD

YARD-MAN }/ by MTD Operator's Manual Curved Shaft, 4-Cycle Trimmer Model YM26C0O mrD)// IMPORTANT: Read safety rules and instructions carefully before operating equipment. PART NO. 769-00438 (10/02)

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 unit and copy the information from it onto the space provided below. The information on the model plate is very important if you need help from our Customer Support Department or an authorized dealer. + You can locate the model number by looking on the engine. À sample model plate is shown and explained below. For future reference, please copy the model number and the serial number of the equipment in the space provided. Model/Parent Part Number Copy the model / parent Serial Numbi erial Number part number here: Copy the serial number here:

CALLING CUSTOMER SUPPORT

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- (800)-345-8746, or 1- (800)-668-1238 in Canada, to reach a Customer Support representative. Please have your unit's model number and serial number ready when you call. You will be asked to enter the serial number in order to process your call. This information is explained above.

Visit our web site at www.yardman.com for more information about our quality Yard Man products, customer service, parts, tips, literature and more.

SPARK ARRESTOR NOTE: For users on U.S. Forest Land and in the states of California, Maine, Oregon and Washington. All US. 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 #180890 Spark Arrestor. WARNING! Read the Operator’s Manual and follow all warnings and safety instructions. Failure to do so can result in serious injury to the operator and/or bystanders. FOR QUESTIONS, CALL 1-800-345-8746 IN U.S. OR 1-800-668-1238 in CANADA

SECTION L IMPORTANT SAFE OPERATION PRACTICES

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. serious personal injury. May be used in conjunction with other symbols or pictographs. A SAFETY ALERT SYMBOL: Indicates danger, warning, or caution. Attention is required in order to avoid NOTE: Advises you of information or instructions vital to the operation or maintenance of the equipment.

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. SECTION la: RULES FOR SAFE OPERATION

READ ALL INSTRUCTIONS

WARNING: When using the unit, you must

follow the safety rules. For your own safety and that of bystanders, please read these instructions before operating the unit. Please keep the instructions for later use. Before Operating + Read the instructions carefully. Be familiar with the controls and proper use of the unit. + Do not operate this unit when tired, ill or under the influence of alcohol, drugs or medication. + Children under the age of 15 must not use the unit; teens may operate the unit with adult guidance. + Inspect the unit before use. Replace damaged parts. Check for fuel leaks. Make sure all fasteners are in place and secure. Replace cutting attachment parts that are cracked, chipped or damaged in any way. Make sure the cutting attachment is properly installed and securely fastened. Be sure that the cutting attachment shield is properly attached, and positioned as recommended. Failure to do so can result in personal injury to the operator and bystanders, as well as damage to the unit. Use only 0.080-inch (2.03 mm) diameter Genuine Factory Parts" replacement line. Never use metal- reinforced line, wire, chain or rope. These can break off and become dangerous projectiles.

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

• Clear the area to be cut before each use. Remove rocks, broken glass, nails, wire, string and other objects which may be thrown or become entangled in the cutting attachment. Clear the area of children, bystanders and pets; keep them outside a 50-foot (15 m.) radius, at a minimum. Even then, they are still at risk from thrown objects. Encourage bystanders to wear eye protection. If you are approached, stop the unit immediately. Squeeze the throttle control and check that it returns automatically to the idle position. Make all adjustments or repairs before using the unit. This unit was not designed to be used as a brushcutter. Do not attach or operate this unit with any type of brushcutting blade or brushcutting attachment. Safety Warnings for Gas Trimmers

WARNING: Gasoline is highly flammable,

and its vapors can explode if ignited. Take the following precautions: + Store fuel only in containers specifically designed and approved for the storage of such materials. Always stop the engine and allow it to cool before filling the fuel tank. Never remove the fuel tank cap or add fuel when the engine is hot. Never operate the unit without the fuel cap securely in place. Loosen the fuel tank cap slowly to relieve any pressure in the tank. - Add fuel in a clean, well-ventilated outdoor area where there are no sparks or flames. Remove the fuel cap slowly, and only after the engine stops. Do not smoke while fueling or mixing fuel. Wipe up any spilled fuel from the unit immediately. Avoid creating a source of ignition for spilled fuel. Do not start the engine until fuel vapors dissipate. Move the unit at least 30 feet (9.1 m) from the fueling source and site before starting the engine. Do not smoke. Keep sparks and open flames away from the area while adding fuel or operating the unit. While Operating + Never start or run the unit inside a closed room or building. Breathing exhaust fumes can be fatal. Operate this unit only in a well-ventilated outdoor area. Wear safety glasses or goggles that meet ANSI Z87.1 standards and are marked as such. Wear ear/hearing protection when operating this unit. Wear a face or dust mask if the operation is dusty. Wear heavy long pants, boots, gloves and a long sleeve shirt. Do not wear loose clothing, jewelry, short pants, sandals or go barefoot. Secure hair above shoulder level. The cutting attachment shield must always be in place while operating the unit. Do not operate ünit without both trimming lines extended, and the proper line installed. Do not extend the trimming line beyond the length of the shield. This unit has a clutch. The cutting attachment remains stationary when the engine is idling. If it does not, have the unit adjusted by an authorized service technician. Adjust the J -handle to your size in order to provide the best grip. Be sure the cutting attachment is not in contact with anything before starting the unit. Use the unit only in daylight or good artificial light. Avoid accidental starting. Remain 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 extremey hot from operation, even after the unit is turned off. Do not operate the engine faster than the speed needed to cut, trim or edge. Do not run the engine at high speed when not cutting. Always stop the engine when cutting is delayed or when walking from one cutting location to another. If you strike or become entangled with a foreign object, stop the engine immediately and check for damage. Do not operate before repairing damage. Do not operate the unit with loose or damaged parts. Stop the unit, switch the engine to off, and disconnect the spark plug for maintenance or repair. Use only Genuine Factory Parts" 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, damage to the unit, and a voided warranty. Keep unit clean of vegetation and other materials. They may become lodged between the cutting attachment and shield. To reduce fire hazard, replace a faulty muffler and spark arrestor. Keep the engine and muffler free from grass, leaves, excessive grease or carbon build up. Other Safety Warnings + Never store a fueled unit inside a building where fumes may reach an open flame or spark. Allow the engine to cool before storing or transporting. Be sure to secure the unit while transporting. Store the unit in a dy 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

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 é Oo» (DE MEANING

+ SAFETY ALERT SYMBOL

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

OPERATOR'S MANUAL Read the operators manual(s) and follow all warings and safety instructions. Failure to do so can result in serious injury to the operator and/or bystanders.

WARNING: Thrown objects and loud

noise can cause severe eye injury and hearing loss. Wear eye protection meeting ANSI Z87.1 standards and ear protection when operating this unit. Use a full face shield when needed.

+ KEEP BYSTANDERS AWAY

WARNING: Keep all bystanders,

especially children and pets, at least 50 feet (15 m) from the operating area. + UNLEADED FUEL Always use clean, fresh unleaded fuel. *°OIL Refer to operator's manual for the proper type of oil. SYMBOL MEANING

+ THROWN OBJECTS AND

CAUSE SEVERE INJ URY

WARNING: Do not operate without

the cutting attachment shield in place. Keep away from the rotating cutting attachment.

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 tumed off. + SHARP BLADE

WARNING: Sharp blade on cutting

Applications Spark Arrestor As a trimmer: Ÿ «Spark Plug + Cutting grass and light weeds *__ Decorative trimming around trees, fences, etc. Muffler Guard Starter Rope Grip Control J-Handle Choke Lever : Spark Plug Shaft Housing Air Filter Cover IN 14 L ED | Cutting Attachment Shield Line Cutting Blade Engine Feet Oil Fill Plug / Dipstick

On some units, the ] -handle may be pre-installed. Go to step 5 ifthe J -handle is pre-installed. Install and Adjust the J “handle

1. Place the] -handle between the top and middle

clamp pieces. See Figure 1. J-Handle Top Clamp Middle Clamp Bottom Clamp—7 TE Nuts 7 e Figure 1

2. While holding the three pieces together, install the four

(à) 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. You must first loosen Figure 2

6. While holding the unit in the operating position,

position the j -handle to the location that provides you the best grip. See Figure 3.

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

is secure. Installing the Cutting Attachment Shield Use the following instructions if the cutting attachment shield on your unit is not installed.

WARNING: To prevent serious personal

injury, never operate the trimmer without the cutting attachment shield in place.

1. Place the cutting attachment shield onto the shaft

housing above the clamp assembly. See Figure 4.

2. Push the cutting attachment shield down to the top

of the cutting attachment assembly and then rotate the cutting attachment shield until the screw holes align and the guard fits into the recessed pocket. See Figure 5.

3. Install the four (4) screws with a Phillips screwdriver.

See Figure 6. Cutting Attachment Shield Shaft Housing ——>- Cutting Attachment >») Shaft Housing ——> Cutting Attachment Clamp Shield Cutting Attachment (4) Screws

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. See Figure 7. 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. See Figure 7. (TN 4-Cycle Motor Oil Figure 7

2. Place the unit on a flat level surface.

3. Remove the oil plug / dipstick from the crankcase.

See Figure 8. Oil Fill Hole Figure 8

4. Pour the entire bottle of oil into the oil fill hole. See

Figure 9. 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.

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. Fueling The Unit û 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.

1. Remove the fuel cap.

WARNING: Remove the fuel cap slowly to

avoid injury from gasoline spray. Fuel Tank Fuel Cap (5 Figure 10

2. Place the gas containers spout into the fill hole on

the fuel tank and fill the tank. See Figure 10.

WARNING: Add gasoline in a clean, well-

ventilated outdoor area. Avoid creating a source of ignition for spilt fuel. NOTE: Do not overfill the tank.

3. Wipe up any gasoline that may have spilled.

4. Reinstall the fuel cap.

WARNING: Never operate the unit without

the fuel cap securely in place.

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.

WARNING: Operate this unit only in a well-

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

1. Check oil level in crankcase. See Checking the Oil Level.

2. Fillthe fuel tank with fresh, clean, unleaded gasoline.

See Fueling the Unit.

3. Putthe Start/Stop Engine Control in the START [I]

4. Place the choke lever in the FULL choke (A)}-

position. See Figure 12. NOTE: Slide the choke lever directly above the appropriate symbol on filter cover decal. See Figure 12.

5. Fully press and release the primer bulb slowly 10

times until FUEL IS VISIBLE IN THE PRIMER BULB. 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. See Figure 12. Choke Lever Primer Bulb Figure 12

6. Squeeze the throttle control to the wide open (full

7. With the unit in the starting position and the choke in

the FULL (A)}- position, pull the starter rope briskly 5 times. If the engine attempts to run before the fifth pull, proceed to step 8.

8. Move the choke lever to the PARTIAL (B)}x]

position. See Figure 12. NOTE: The engine will not run in the FULL choke (A)}- position.

9. Pull the starter rope 1 to 3 pulls until the engine

starts. Run for 15-30 seconds. If the unit fails to start, return to step 7.

10. Move the choke lever to the RUN (C

run at full throttle for 30 seconds. )[+[ position and

WARNING: Avoid accidental starting. Make

sure you are in the starting position when pulling the starter rope. See Figure 13. To avoid serious injury, the operator and unit must be in a stable position while starting.

11. Release the throttle control to the idle position and

begin operation. NOTE: If the engine does not start using these procedures, repeat steps 5 through 11 using TWO (2) pulls in the FULL choke (A) position. Engine Re-Start: Warm Engine With Fuel

1. Putthe Start/Stop Engine Control in the START [I]

position. See Figure 11.

2. Move the choke lever to the PARTIAL (B) position.

times until FUEL IS VISIBLE IN THE PRIMER BULB. 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. See Figure 12.

4. Squeeze the throttle control to the wide open (full

5. With the unit in the starting position, pull the starter

rope briskly until the engine starts. See Figure 13.

6. When the engine starts, move the choke lever to the

RUN (C) position, and run at full throttle for 30 seconds. NOTE: If the engine does not start using the Engine Re-start procedures, revert to the Cold Start procedures. Stopping Instructions

1. Release your hand from the throttle control. See

Figure 13. Allow the engine to cool down by idling.

2. Putthe On/Off Stop Control in the OFF (0) position.

Before operating the unit, stand in the operating position. See Figure 14. Check for the following: + The operator is wearing eye protection and proper clothing + With a slightly-bent right arm, the operator's right hand is holding the shaft grip + The operator's left arm is straight, the left hand holding the J -handle

• The unit is at waist level - The cutting attachment is parallel to the ground and easily contacts the grass without the need to bend over

WARNING: Always wear eye, hearing, foot

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

Figure 14 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 while operating the trimmer at high speed. See Figure 15. NOTE: Always keep the trimming line fully extended. Line release becomes more difficult when the cutting line gets shorter.

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

NOTE: Do not rest the bump knob on the ground while the unit is running. CAUTION: Do not remove or alter the line cutting blade assembly. Excessive line length may make the unit overheat. Some line breakage will occur from: + Entanglement with foreign matter + Normal line fatigue + An attempt to cutthick, stalky weeds + Forcing the line into objects such as walls or fence posts Tips for Best Trimming Results +__ For best trimming results, operate unit at full throttle. + Keep the cutting attachment parallel to the ground. +. Do not force the cutting attachment. Allow the tip of the line to do the cutting, especially along walls. Cutting with more than the tip will reduce cutting efficiency and may overload the engine. +__ Cut grass over 8 inches (200 mm) tall 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- to-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 refers to the removal of vegetation around trees, posts, fences and more. Rotate the whole unit so that the cutting attachment is at a 30° angle to the ground. See Figure 16. CI \

Maintenance Schedule NOTE: Maintenance, replacement, or repair of the emission Perform these required maintenance procedures at the control devices and system may be performed b frequency Stated in the table. These procedures should any non-road sogre fepair estéblishment, individual also be à part of any seasonal tune-up. : NOTE: Some maintenance procedures may require WARNING: To prevent serious injury, never special tools or skills. If you are unsure about perform maintenance or repairs with unit these procedures take your unit to any non-road running. Always service and repair a cool engine repair establishment, individual or unit. Disconnect the spark plug wire to authorized service dealer. ensure that the unit cannot start.

FREQUENCY MAINTENANCE REQUIRED REFER TO

: : Fill fuel tank with fresh fuel Page9 Before starting engine Check oil Page 14 Every 10 hours Clean and re-oil air filter Page 16 First change at 10 hours Change oil Page 15 Every 25 hours thereafter Change oil Page 15 Every 25 hours Clean spark arrestor Page 19 10 hours on new engine Check rocker arm to valve clearance and adjust Page 17 Every 25 hours Check rocker arm to valve clearance and adjust Page 17 Every 25 hours Check spark plug condition and gap Page 19 Line Installation This section covers both SplitLine"”" and standard single line installation. Always use Genuine Factory Parts" 0.080 in. (2.03 mm) replacement line. Using 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. See Figure 17. Inspect the bolt inside the bump knob to make sure it moves freely. Replace the bump knob if damaged.

2. Remove the inner reel from the outer spool. See

3. Remove spring from the inner reel. See Figure 18.

Use a clean cloth to wipe the inner reel, spring, shaft, and inner surface of the outer spool. Figure 18

5. Check the indexing teeth on the inner reel and outer

spool for wear. If necessary, remove burrs or replace the reel and spool. See Figure 19. Indexing Teeth Figure 19 NOTE: Splitline"” can only be used with the inner reel containing slotted holes. Single line can be used on either type of inner reel. Use Figure 20 to identify the inner reel you have. Slotted Holes For Use with SplitLine" or Single Line For Use with Single Line ONLY Figure 20 NOTE: Always use the correct line length when installing trimming line on the unit. The line may not release properly if the line is too long. Single Line Installation Go To Step 8 for SplitLine"” Installation

6. Cut approximately 25 feet (7.6 m) of new trimming

line, then loop it into two equal lengths. Insert each end of the line through one of the two holes in the inner reel. Pull the line through the inner reel so that the loop is as small as possible. See Figure 21. Figure 21

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

Figure 22. 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. Figure 22 Splitline"” Installation

8. Cut approximately 12 feet (3.65 m) of new trimming

line. Insert one end of the line through one of the two holes in the inner reel. Pull the line through the inner reel until only about 4 inches is left out. See Figure 23.

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. See Figure 23. Loop Figure 23

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.

13. Insert the ends of the line through the eyelets in the

outer spool and place inner reel with spring inside the outer spool. See Figure 25. 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.

Holding Slots Figure 24 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. Figure 25 Installing a Pre Wound Reel

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

bump knob counterclockwise. See Figure 17. 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. See

3. Remove the spring from the old inner reel. See

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

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.

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

knob by turning clockwise. Tighten securely. Replacement Parts For replacement parts, refer to the Accessories / Replacement Parts section.

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

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. See Figure 26. Oil Fill Pains TT 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. Add 1.4-1.5 Oz. (41-44 ml) Top of Dipstick Figure 26

6. lfthe level is low, add a small amount of oil to the oil

fill hole and recheck. Repeat this procedure until the oil level reaches the top of the dipstick. NOTE: Do not overfill the unit. O-Ring oil Fill mana À VE Oil Fill Hole << Figure 27 NOTE: Make sure the O-ring is in place on the oil fill plug/dipstick when checking and changing the oil. See Figure 27.

ñ f 4. Wipe up any oil residue on the unit and clean up any Changing The Oil oil that may have spilled. Dispose of the oil For a new engine, change the oil after the first 10 hours of according to Federal, State and local regulations. operation. Change the oil while the engine is still warm. The oil will flow freely and carry away more impurities. 5. Refill the crankcase with 3.4 fluid ounce (100 ml) of SAE 30 SF, SG, SH oil. À CAUTION: Wear gloves to prevent injury NOTE: Use the bottle and spout saved from initial use to when handling the unit. measure the correct amount of oil. The top of the label on the bottle measures approximately 3.4

1. Unplug spark plug boot to prevent accidental starting. ounces (100 ml). Check the level with the

P'ug SP pug . P °v ' Ing dipstick. If the level is low, add a small amount of

2. Remove the oil fill plug/dipstick.

oil and recheck. Do not overfill. See Figure 29.

3. Pourthe oil out of the oil fill hole and into a container

by tipping the unit to a vertical position. See Figure 28. Allow ample time for complete drainage. ——— <— Fill Level 4-Gycle Motor oil Figure 29

6. Replace the oil fill plug/dipstick.

Air Filter Maintenance Cleaning the Air Filter

WARNING: To avoid serious personal injury,

always turn your trimmer off and allow it to À cool before you clean or service it. Clean and re-oil the air filter every 10 hours of operation. Itis 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. See Figure 30. NOTE: It may be necessary to remove the fuel cap to completely remove the air filter cover.

2. Remove the air filter. See Figure 30.

3. Wash the filter in detergent and water. See Figure 31.

Rinse the filter thoroughly and allow it to dry.

4. Apply enough clean SAE 30 motor oil to lightly coat

5. Squeeze the filter to spread and remove excess oil.

NOTE: If the unit is operated without the air filter, you will VOID the warranty. Back Plate Back Plate Slot

7. Reinstall the air filter cover. Position the hooks on

the left side of the air filter cover into the slots atthe left side of the back plate. See Figure 34. 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. See Figure 30 and 34.

9. Replace the fuel cap if it was removed.

Carburetor Adjustment The idle speed of the engine is adjustable through the air filter/muffler cover. See Figure 35. 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.

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

WARNING: The cutting attachment may

spin during idle speed adjustments. Wear protective clothing and observe all safety structions to prevent serious personal jury. 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. See Figure 35. 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. lfthe cutting attachment rotates when the engine idles,

turn the idle speed screw counterclockwise 1/8 of à 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: After turning the unit off, make

sure the cutting attachment has stopped before setting the unit down. This helps prevent serious personal injury.

Idle Adjustment Screw Figure 35

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 onit,

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. See Figure 36. Engine Cover Rear Slot and Tab Ne iddle Tab

Front Tab TT dont dl Middle Slot Figure 36

2. Remove the two (2) screws on top of the engine cover

with a Flat-head or T-20 Torx screwdriver. See Figure 37. Top View Of The Engine

3. Remove the screw behind the engine cover. See

Figure 38. Figure 38 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. Remove the engine cover. See Figure 37.

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. See Figure 39. Remove the rocker arm cover and gasket. Rocker Arm Cover Spark Plug Hole

8. Pullthe starter rope slowly to bring the piston to the top

ofits travel, (known as top dead center). Check that: + The piston is at the top of its travel while looking in the spark plug hole. See Figure 39. + _ 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. See Figure 40. Measure both the intake and exhaust valves. The recommended clearance for both intake and exhaust is .003 - .006 in. (.076 - 0.152 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. See Figure 40.

10. Ifthe clearance is not within specification:

a. Turn the adjusting nut using a 5/16 inch (8 mm) wrench or nut driver. See Figure 41. + 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 à new gasket.

Torque the screw to 20-30 in-1b (2.2-3.4 Nm).

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. See Figure 36.

Replacing the Spark Plug Use a Champion RDZ19H spark plug (or equivalent). The correct air gap is 0.025 inch (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 it from the spark plug.

2. Clean around the spark plug. Remove the spark plug

from the cylinder head by turning a 5/8 in. socket counterclockwise.

3. Replace cracked, fouled or dirty spark plug. Setthe

air gap at 0.025 in. (0.655 mm) using a feeler gauge. See Figure 42.

4. Install a correctly-gapped spark plug in the cylinder

head. Tighten by turning the 5/8 inch socket clockwise until snug. CAUTION: Do not sand blast, scrape or clean electrodes. Grit in the engine could damage the cylinder. If using a torque wrench torque to: 110-120 in.elb. (12.3-13.5 Nem). Do not over tighten. phAMEUN Ç—,,

(0.655 mm) Figure 42

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. See Figure 43. Muffler Spark Arrestor Screen Figure 43

3. Pullthe tab on the spark arrestor cover out of the

muffler. Remove the spark arrestor cover.

4. Remove the spark arrestor screen from the spark

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

6. Reinstall the spark arrestor screen, spark arrestor

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.

WARNING: To avoid serious personal injury,

always turn your trimmer off and allow it to cool before you clean or service it. Storage + Never store the unit with fuel in the tank where fumes may reach an open flame or spark. + Allow the engine to cool before storing. + Store the unit locked up to prevent unauthorized use or damage. + Store the unit in a dry, well-ventilated area. + Store the unit out of the reach of children. Long Term Storage If the unit will be stored for an extended time, use the following storage procedure:

1. Drain all fuel from the fuel tank into a container with

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

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

ensures that all fuel has been drained from the carburetor.

3. Allow the engine to cool. Remove the spark plug and

put 1 oz. (30 ml) of any high quality motor oil or 2- cycle oil into the cylinder. Pull the starter rope slowly to distribute the oil. Reinstall the spark plug. NOTE: Remove the spark plug and drain all of the oil from the cylinder before attempting to start the trimmer after storage.

4. Thoroughly clean the unit and inspect 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 fuel from unit. + Tighten fuel cap before transporting. Accessories/Replacement Parts 4-Cycle Oil.........................,...., 181786 SparkPlug............................... 180852 Spark Arrestor Screen ...................... 180890 Replacement Line 610375 Replacement Line Cartridge ................ 153577 Inner Reel Spring ......................... 610317 Bump Knob ............................. 153066 Bump Head Assembly . 180897 Fuel Cap .............................. 753-1229 Shoulder Strap ........................... 682075 For specific replacement parts, refer to the parts list located on the inside back cover of this manual.

SECTION 8: TROUBLESHOOTING GUIDE

Trouble Possible Cause(s) Corrective Action ENGINE WILL | + On/Off control in the STOP position + Turn On/Off control to ON NOT START + 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 + Use starting procedure with choke lever in the RUN position + Old or improperly mixed fuel * Drain gas tank and add fresh fuel mixture + Fouled spark plug * Replace or clean spark plug + Plugged spark arrestor + Clean or replace the spark arrestor ENGINE WILL | + Air filter is plugged + Replace or clean the air filter NOT IDLE + Old or improperly mixed fuel + Drain gas tank and add fresh fuel mixture + Improper carburetor adjustment * Adjust according to the Carburetor Adjustment section ENGINE WILL | + Old or improperly mixed fuel + Drain gas tank and add fresh fuel mixture ACCÉLERATE + 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 ENGINE + Old or improperly mixed fuel + Drain gas tank and add fresh fuel mixture RSR + Improper carburetor adjustment * Take to an authorized service dealer for adjustment STALLS WHEN | * Fouled spark plug + Replace or clean spark plug CUTTING + Plugged spark arrestor + Clean or replace the spark arrestor CUTTING + Cutting attachment bound with grass + Stop the engine and clean cutting attachment ATTACHMENT |, Cutting attachment out of line * Refill with new line WILL NOT ; ADVANCE LINE | * Inner reel bound up + Replace the inner reel + Cutting head is 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 | + Oilis in the cutting head + Clean the cutting head attachment ADVANCES WILDLY If further assistance is required, contact your authorized service dealer

Fuel... .….. Unleaded Carburetor Diaphragm, All-Position Starter … Auto Rewind Muffler Throttle.. Fuel Tank Capacity. . Baffled with Guard Manual Spring Return 12 02 (355 ml) Drive Shaft and Cutting Attachment* Drive Shaft Housing Throttle Control Unit Weight (No Fuel, with J -handle, Cutting attachment shield and Cutting attachment). Cutting Mechanism Line Spool. Line Spool Diamete Trimming Line Diameter Cutting Path Diameter . Aluminum Tube Finger-Tip Trigger … 12 1bs (5.44 kg) . Dual String Cutting Head Bump Line Releaser 3 inches (76.2 mm)

0.080 inches (2.03 mm)

. 15 inches (38.1 cm)) *ll 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.

EPA Emission Control Warranty Statement Your Warranty Rights and Obligations The Environmental Protection Agency and MTD SOUTHWEST INC (MTD) are pleased to explain the emission control system warranty on your 2002 and later small off-road engine. New small off-road engines must be designed, built and equipped to meet stringent anti-smog standards. MTD must warrant the emission control system on your small off-road engine for the periods of time listed below provided there has been no abuse, neglect or improper maintenance of your small off-road engine. Your emission control system may include parts such as the carburetor or fuel-injected system, the ignition system, and catalytic converter. Also included may be hoses, belts, connectors and other emission-related assemblies. Where a warrantable condition exists, MTD will repair your small off-road engine at no cost to you including diagnosis, parts and labor. The 2002 and later small off-road engines are warranted for two years. If any emission-related part on your engine is defective, the part will be repaired or replaced my MTD. Owners Warranty Responsibilities - As the small off-road engine owner, you are responsible for the performance of the required maintenance listed in your operators manual. MTD recommends that you retain all receipts covering maintenance on your small off-road engine, but MTD cannot deny warranty solely for the lack of receipts or for your failure to ensure the performance of all scheduled maintenance.

• As the small off-road engine owner, you however should be aware that MTD may deny you warranty coverage if your small off-road engine or a part has failed due to abuse, neglect, improper maintenance or unapproved modifications. + You are responsible for presenting your small off-road engine to a MTD Authorized Service Center as soon as à problem exists. The warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days. If you have any questions regarding your warranty rights and responsibilities, you should call 1-800-345-8746. Manufacturer's Warranty Coverage - The warranty period begins on the date the engine or equipment is delivered to the retail purchaser. + The manufacturer warrants to the initial owner and each subsequent purchaser, that the engine is free from defects in material and workmanship which cause the failure of a warranted part for a period of two years. + Repair or replacement of warranted part will be performed at no charge to the owner at an Authorized MTD Service Center. For the nearest location please contact MTD at: 1-800-345-8746.

• Any warranted part which is not scheduled for replacement, as required maintenance or which is scheduled for only for regular inspection to the effect of “Repair or Replace as Necessary” is warranted for the warranty period. Any warranted part which is scheduled for replacement as required maintenance will be warranted for the period of time up to the first scheduled replacement point for that part. + The owner will not be charged for diagnostic labor which leads to the determination that a warranted part is defective, if the diagnostic work is performed at an Authorized MTD Service Center. + The manufacturer is liable for damages to other engine components caused by the failure of a warranted part still under warranty.

• Failures caused by abuse, neglect or improper maintenance are not covered under warranty. - The use of add-on or modified parts can be grounds for disallowing a warranty claim. The manufacturer is not liable to cover failures of warranted parts caused by the use of add-on or modified parts.

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

• Any manufacturer approved replacement part may be used in the performance of any warranty maintenance or repair of emission related parts and will be provided without charge to the owner. Any replacement part that is equivalent in performance or durability may be used in non-warranty maintenance or repair and will not reduce the warranty obligations of the manufacturer + The following components are included in the emission related warranty of the engine, air filter, carburetor, primer, fuel lines, fuel pick up/ fuel filter, ignition module, spark plug and muffler.

MANUFACTURER'S LIMITED WARRANTY FOR: YARD-MAN fr by MT The limited warranty set forth below is given by MTD LLC (‘MTD”) with respect to new merchandise purchased and used in the United States, its possessions and territories. MTD warrants this product against defects in material and workmanship for a period of two (2) years commencing on the date of original purchase and will, at its option, repair or replace, free of charge, any part found to be defective in material or workmanship. This limited warranty shall only apply if this product has been operated and maintained in accordance with the Operators Manual furnished with the product, and has not been subject to misuse, abuse, commercial use, neglect, accident, improper maintenance, alteration, vandalism, theft, fire, water or damage because of other peril or natural disaster. Damage resulting from the installation or use of any accessory or attachment not approved by MTD for use with the product(s) covered by this manual will void your warranty as to any resulting damage. This warranty is limited to ninety (90) days from the date of original retail purchase for any MTD product that is used for rental or commercial purposes, or any other income-producing purpose. HOW TO OBTAIN SERVICE: Warranty service is available, WITH PROOF OF PURCHASE THROUGH YOUR LOCAL AUTHORIZED SERVICE DEALER. To locate the dealer in your area, please check for a listing in the Yellow Pages or contact the Customer Service Department of MTD LLC by calling 1-800-345-8746 or writing to P.O. Box 361131, Cleveland OH 44136-0019 or if in Canada call 1-800-668-1238. No product returned directly to the factory will be accepted unless prior written permission has been extended by the Customer Service Department of MTD LLC. This limited warranty does not provide coverage in the following cases: A. Tune-ups - Spark Plugs, Carburetor Adjustments, Filters. B. Wear items - Bump Knobs, Outer Spools, Cutting Line, Inner Reels, Starter Pulley, Starter Ropes, Drive Belts. C. MTD does not extend any warranty for products sold or exported outside of the United States of America, its possessions and territories, except those sold through MTD's authorized channels of export distribution. MTD reserves the right to change or improve the design of any MTD Product without assuming any obligation to modify any product previously manufactured. No implied warranty, including any implied warranty of merchantability or fitness for a particular purpose, applies after the applicable period of express written warranty above as to the parts as identified. No other express Warranty or guaranty, whether written or oral, except as mentioned above, given by any person or entity, including a dealer or retailer, with respect to any product shall bind MTD. During the period of the Warranty, the exclusive remedy is repair or replacement of the product as set forth above. (Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.) The provisions as set forth in this Warranty provide the sole and exclusive remedy arising from the sales. MTD shall not be liable for incidental or consequential loss or damages including, without limitation, expenses incurred for substitute 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 1-800-345-8746 in the United States or 1-800-668-1238 in Canada. MTD LLC P.0. Box 361131 Cleveland, OH 44136-0019

INSTRUCTIONS D'ARRÊT

SECTION 6: MODE D'EMPLO

(0.655 mm) l TJ Figure 42 E19