YM1500 - Grass trimmer Yard-Man - Free user manual and instructions

USER MANUAL YM1500 Yard-Man

Operator’s Manual IMPORTANT: Read safety rules and instructions carefully before operating equipment. PRINTED IN U.S.A. PART NO. 769-00437 (09/02) English Straight Shaft, 2-Cycle Trimmer Model YM15002

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. A 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. CALLING CUST OMER SUPPOR

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 Visit our web site at www.yardman.com for more information about our quality Yard Man products, customer service, parts, tips, literature and more. Copy the model / parent part number here: Copy the serial number here:3 SPARK ARRESTOR 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 #182747 Spark Arrestor.

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

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.

SECTION 1a:RULES FOR SAFE OPERATION4

• 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 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 does not have a clutch. The cutting attachment continues to rotate when the engine idles.

• 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. 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 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 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 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.

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

• WARNING - READ OPERATOR'S MANUAL Read the operator’s manual(s) and follow all warnings and safety instructions. Failure to do so can result in serious injury to the operator and/or bystanders.

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

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

Do not operate without the cutting attachment shield in place. Keep away from the rotating cutting attachment.

• HOT SURFACE WARNING Do not touch a hot muffler, gear housing or cylinder. You may get burned. These parts get extremely hot from operation. They remain hot for a short time after the unit is turned off.

WARNING: Sharp blade on cutting

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

• CHOKE CONTROL A • FULL choke position. B • PARTIAL choke position. C • RUN position. 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.

• Cutting grass and light weeds

• Decorative trimming around trees, fences, etc. D-Handle Cutting Attachment Shield Fuel Cap Throttle Control Cutting Attachment Shaft Grip Primer Bulb Air Filter/Muffler Cover On/Off Stop Control Shaft Housing Starter Rope Grip Line Cutting Blade Muffler Spark Plug Choke Lever7

1. Push the D-handle down onto the shaft housing so

that the handle slants towards the shaft grip. Make sure the squared bolt hole in the handle is to the right. See Figure 1.

2. Insert the shoulder bolt into the squared hole in the

handle and push through. On the left side of the handle, place the washer on the bolt, then screw the wing nut onto the bolt. Do not tighten until you make the handle adjustment.

3. Rotate the D-handle until the grip is above the top of

the shaft housing. Place it a minimum of 6 inches (15.24 cm) from the end of the shaft grip. Minimum 6 inches (15.24 cm) Shaft Housing

4. While holding the unit in the operating position,

arrange the D-handle in the location that provides you the best grip. See Figure 2.

5. Tighten the wing nut until the D-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. 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. 4).

2. Place a hex lock nut into one of the three recessed

holes on the top of the cutting attachment shield (Fig 5).

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 6). Do not tighten.

4. Repeat steps 2 and 3 until all three screws have been

started, then tighten securely. Figure 1 Figure 3 Figure 4 Figure 5Figure 2 Cutting Attachment Shield Screws (3) Shaft Housing Hex Lock Nut Cutting Attachment Shield Cutting Attachment Recessed Holes Shield Mount8

SECTION 4: OIL AND FUEL INFORMATION

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 spilled fuel. Do not start the engine until fuel vapors dissipate. NOTE: Dispose of the old fuel/oil mix in accordance to Federal, State and Local regulations. Oil and Fuel Mixing Instructions Old and/or improperly mixed fuel is the main reason for improper unit performance. 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 fresh fuel mix per 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 only 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. 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. Thoroughly mix the proper ratio of 2-cycle engine oil with unleaded gasoline in a separate fuel can. Use a 32:1 fuel/oil ratio. Do not mix them directly in the engine fuel tank. See the table below for specific gas and oil mixing ratios. NOTE: One gallon (3.8 liters) of unleaded gasoline mixed with one 4 oz. (120 ml.) bottle of 2-cycle oil makes a 32:1 fuel/oil ratio.

UNLEADED GAS 2-CYCLE OIL

Starting Instructions

WARNING: Operate this unit only in a well-

ventilated 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. See Figure 8. To avoid serious injury, the operator and unit must be in a stable position while starting.

1. Mix gas with oil. Fill fuel tank with fuel/oil mixture.

See Oil and Fuel Mixing Instructions.

2. Put the On/Off Stop Control in the ON (I) position.

slowly, until FUEL IS VISIBLE IN THE PRIMER BULB. See Figure 7. If you can’t see fuel in the bulb, press and release the bulb three (3) additional times, or as many times as it takes before you can see fuel in it.

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

position. See Figure 7.

5. With the unit in the starting position (see Figure 8),

squeeze the throttle control to the wide open (full throttle) position. Pull the starter rope briskly 5 times while still in the FULL choke (A ) position. If the engine attempts to run before the fifth pull, proceed to step 6. NOTE: The engine will not run in the FULL choke (A ) position.

6. Place the choke lever in the PARTIAL choke (B )

position. See Figure 7.

7. Pull starter rope 1 to 3 times, briskly, to start the

engine. See Figure 8. NOTE: Squeeze the throttle control until the engine has started and warmed up.

8. If the engine does not start, repeat steps 4 through 7.

NOTE: If the engine floods while trying to start, place the choke lever in the RUN (C ) position. See Figure 7. Squeeze the throttle control. Pull the starter rope briskly. The engine should start within three (3) to eight (8) pulls.

9. Squeeze the throttle control to warm up the engine

for 5 to 10 seconds. Place the choke lever in the RUN (C ) position. See Figure 7. NOTE: Choking is unnecessary when starting a warm engine. Put the On/Off Stop Control in the ON position (Figure 6), and start in PARTIAL choke (B ) position (Figure 7). After starting, place the choke lever in the RUN (C ) position. Choke Lever Full Choke Position (A) Run Position (C) Partial Choke Position (B) Starter Rope Throttle Control Primer Bulb Stopping Instructions

1. Release your hand from the throttle control. See

Figure 8. Allow the engine to cool down by idling.

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

See Figure 6. Figure 6 Figure 7 Figure 8 On/Off Stop Control Start/On (I) Stop/Off (O)10 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. See Figure 9. 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 D-handle

• The unit is at waist level

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

Adjusting Trimming Line Length The Bump Head™ cutting attachment allows you to release trimming line without stopping the engine. To release more line, lightly tap the cutting attachment on the ground while operating the trimmer at high speed. See Figure 10. 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

• An attempt to cut thick, 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 left to right whenever possible. Cutting to the right improves the unit's cutting efficiency. Clippings are thrown away from the operator.

• Slowly move the trimmer into and out of the cutting area at the desired height. Move either in a forward- 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 11.

WARNING: To prevent serious injury, never

perform maintenance or repairs with unit running. Always service and repair a cool unit. Disconnect the spark plug wire to ensure that the unit cannot start. Maintenance Schedule Perform these required maintenance procedures at the frequency stated in the table. These procedures should also be a part of any seasonal tune-up. NOTE: Some maintenance procedures may require special tools or skills. If you are unsure about these procedures take your unit to any non-road engine repair establishment, individual or authorized service dealer. NOTE: Maintenance, replacement, or repair of the emission control devices and system may be performed by any non-road engine repair establishment, individual or authorized service dealer. In order to assure peak performance of your engine, inspection of the engine exhaust port may be necessary after 50 hours of operation. If you notice lost RPM, poor performance or general lack of acceleration, this service may be required. If you feel your engine is in need of this inspection, refer service to any non-road engine repair establishment, individual or authorized service dealer for repair. DO NOT attempt to perform this process yourself as engine damage may result from contaminants involved in the cleaning process for the port.

FREQUENCY MAINTENANCE REQUIRED REFER TO

Before starting engine Fill fuel tank with fresh fuel Page 8 Every 10 hours Clean and re-oil air filter Page 13 Every 25 hours Check and clean spark arrestor Check spark plug condition and gap Page 14 Page 16 Every 50 hours Inspect exhaust port and spark arrestor screen for clogging or obstruction to assure maximum performance levels Page 14 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 12. 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 13.

4. Use a clean cloth to wipe the inner reel, spring, shaft,

and inner surface of the outer spool. Bump Knob Bolt Inner Reel Spring Outer Spool Figure 12 Figure 1312

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

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 15 to identify the inner reel you have. Indexing Teeth 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 16. Slotted Holes For Use with SplitLine™ or Single Line For Use with Single Line ONLY

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

Figure 17. Wind the line in the direction indicated on the inner reel. Place your index finger between the two lines to stop the lines from overlapping. Do not overlap the ends of the line. Proceed to step 11. SplitLine™ Installation

8. 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 18.

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 18. Loop Loop

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 20. 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. Figure 14 Figure 16 Figure 15 Figure 18 Figure 1713 Holding Slots Spring Eyelet Eyelet 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 Pre Wound Reel

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

bump knob counterclockwise. See Figure 12. 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. Air Filter Maintenance Removing the Air Filter/Muffler Cover

WARNING: To avoid serious personal injury,

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

Place the choke lever in the PARTIAL choke position (B). NOTE: The choke lever must be in the PARTIAL choke position (B) to remove the air filter/ muffler cover. See Figure 21.

2. Remove the four (4) screws securing the air filter/

muffler cover. See Figure 21. Use a flat blade or T20 Torx bit screwdriver.

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

Choke Lever Screws Screws Partial Choke Position (B) Cleaning the Air Filter

WARNING: To avoid serious personal injury,

always turn your trimmer off and allow it to cool before you clean it or perform any maintenance. Clean and re-oil the air filter every 10 hours of operation. It is an important item to maintain. Failure to maintain the air filter will VOID the warranty.

1. Remove air filter/muffler cover. See 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. See Figure 22.

3. Wash the filter in detergent and water. See Figure 23.

Rinse the filter thoroughly. Squeeze out excess water. Allow it to dry completely.

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

filter. See Figure 24.

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

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

See Figure 21. 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. NOTE: The choke lever must be in the PARTIAL choke position (B) to install the air filter/muffler cover. See Figure 21.

2. Insert the four (4) screws into the holes in the air

filter/muffler cover and tighten. See Figure 21. Do not over tighten. Spark Arrestor Maintenance

1. Remove air filter/muffler cover. See Removing the Air

Filter/Muffler Cover.

2. Locate muffler front and the two (2) bolts securing it

to the engine. See Figure 26. Remove the two (2) bolts using a flatblade screwdriver or 5/16-inch socket or nut driver. Pull muffler off of the engine.

3. Turn muffler over to the back side and locate the

exhaust gasket. Remove the muffler gasket from the muffler. See Figure 26. NOTE: If the exhaust gasket is torn or damaged, replace it with a new gasket before reassembling muffler.

Using a small flatblade screwdriver, carefully pry up the spark arrestor from the recessed hole. See Figure 27. Remove the spark arrestor from the muffler.

5. Clean the spark arrestor with a wire brush. Replace it

if it is damaged or if it is impossible to clean thoroughly. See Figure 27.

6. Reinstall the spark arrestor by pressing it into the

recessed hole on the muffler's back side. Make sure it fits tightly against the muffler and is not raised up.

7. Place the exhaust gasket against muffler's back side.

Align the gasket bolt holes with the bolt holes in the muffler. While holding exhaust gasket in place, insert the bolts into the muffler's front side. See Figure 26.

8. Place the muffler (with the exhaust gasket in place

and bolts inserted), against the engine, aligning the bolt holes. Tighten the bolts to secure the muffler to the engine. If using a torque wrench torque to: 80-90 in.•lb. (9-10.2 N•m).

WARNING: If the muffler is not tightened

securely, it could fall off causing damage to the unit and possible serious personal injury.

9. Reinstall the air filter/muffler cover.

Carburetor Adjustment The idle speed of the engine is adjustable through the air filter/muffler cover. See Figure 28. NOTE: Careless adjustments can seriously damage your unit. An authorized service dealer should make carburetor adjustments. Check Fuel Mixture Old and/or improperly mixed fuel is usually the reason for improper unit performance. Drain and refill the tank with fresh, properly mixed fuel prior to making any adjustments. Refer to Oil and Fuel Information. Clean Air Filter The condition of the air filter is important to the operation of the unit. A dirty air filter will restrict air flow and change the air/fuel mixture. This is often mistaken for an out of adjustment carburetor. Check the condition of the air filter before adjusting the idle speed screw. Refer to Air Filter Maintenance. Adjust Idle Speed

WARNING: The cutting attachment will

spinning during idle speed adjustments. Wear protective clothing and observe all safety instructions to prevent serious personal injury. If, after checking the fuel mixture and cleaning the air filter, the engine still will not idle, adjust the idle speed as follows.

1. Start the engine and let it run at a high idle for a

minute to warm up. See 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 28. Turn the idle speed screw in, clockwise, 1/8 of a turn at a time (as needed) until the engine idles smoothly.

3. If the engine appears to be idling too fast, 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 this is not the case and the following are all 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.16

SECTION 7: MAINTENANCE AND REPAIR INSTRUCTIONS

Replacing the Spark Plug Use a Champion RDJ7Y spark plug (or equivalent). The correct air gap is 0.020 inch (0.5 mm). Remove the plug after every 25 hours of operation and check its condition.

1. Stop the engine and allow it to cool. Grasp the plug

wire firmly and pull it from the spark plug.

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

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

3. Replace cracked, fouled or dirty spark plug. Set the

air gap at 0.020 in. (0.5 mm) using a feeler gauge. See Figure 29. CAUTION: Do not sand blast, scrape or clean electrodes. Grit in the engine could damage the cylinder.

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

(0.5 mm) 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. Cleaning

WARNING: To avoid serious personal injury,

always turn your trimmer off and allow it to cool before you clean or service 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 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. Figure 2917

SECTION 8: TROUBLESHOOTING GUIDE

If further assistance is required, contact your authorized service dealer Trouble Possible Cause(s) Corrective Action ENGINE WILL NOT START

On/Off control in the STOP position

• Primer bulb wasn’t pressed enough

• Old or improperly mixed fuel

• Turn On/Off control to ON

• Fill fuel tank with properly-mixed fuel

• Press primer bulb fully and slowly 10 times

• Use starting procedure with choke lever in the RUN position

• Drain gas tank and add fresh fuel mixture

• Air filter is plugged

• Old or improperly mixed fuel

• Improper carburetor adjustment

• Replace or clean the air filter

• Drain gas tank and add fresh fuel mixture

• Adjust according to the Carburetor Adjustment section ENGINE WILL NOT ACCELERATE

• Old or improperly mixed fuel

• Improper carburetor adjustment

• Cutting attachment bound with grass

• Drain gas tank and add fresh fuel mixture

• Take to an authorized service dealer for adjustment

• Stop the engine and clean the cutting attachment

• Old or improperly mixed fuel

• Improper carburetor adjustment

• Drain gas tank and add fresh fuel mixture

• Take to an authorized service dealer for adjustment

• Cutting attachment bound with grass

• Cutting attachment out of line

• Cutting head is dirty

• Line twisted when refilled

• Not enough line is exposed

• Stop the engine and clean cutting attachment

• Refill with new line

• Replace the inner reel

• Clean inner reel and outer spool

• Disassemble, remove the welded section and rewind

• Disassemble and rewind the line

• Push the bump knob and pull out line until 4 inches (102 mm) of line is outside of the cutting attachment CUTTING LINE ADVANCES WILDLY

• Oil is in the cutting head • Clean the cutting head attachment18

• As the small off-road engine owner, you are responsible for the performance of the required maintenance listed in your operator’s 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 a problem exists. The warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days. If you have any questions regarding your warranty rights and responsibilities, you should call 1-800-345-8746. 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: 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.O. Box 361131 Cleveland, OH 44136-0019 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 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 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.Manuel de l'utilisateur IMPORTANT : lisez soigneusement les règles et consignes de sécurité avant de faire fonctionner cet équipement. Français Arbre Droit, Désherbeuse à 2-temps Modèle YM1500 IMPRIME AUX ÉTATS-UNIS.

INSTRUCTIONS D'ARRÊT