TROY-BILT TB51BP 2-Cycle Backpack Blower Owner’s Manual

TB51BP 2-Cycle Backpack Blower

IMPORTANT: Read this manual thoroughly before using this product. Follow all instructions.

SERVICE

DO NOT RETURN THIS UNIT TO THE RETAILER. PROOF OF PURCHASE WILL BE REQUIRED FOR WARRANTY SERVICE.

For assistance regarding the assembly, operation or maintenance of the unit, please call 1-800-828-5500 (in the United States) or 1-800668-1238 (in Canada). Additional information can be found at www.troybilt.com (in the United States) or www.troybilt.ca (in Canada).

Warranty service is available through an authorized service center. To locate a service center in your area, please visit our website or call the number listed above. Service on this unit, both within and after the warranty period, should only be performed by an authorized and approved service center. When servicing, use only identical replacement parts.

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

The product may vary slightly from the illustrations contained in this manual.Copyright© 2020 MTD SOUTHWEST INC, All Rights Reserved.

Register your product at www.troybilt.com (US) or www.troybilt.ca (Canada) to have parts, owner manuals, and warranty information at your fingertips.

SAFETY

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.

SYMBOL MEANING

DANGER: Signals an EXTREME hazard.Failure to obey a safety DANGER symbol WILL result in serious injury or death to yourself or to others.WARNING: Signals a SERIOUS hazard.Failure to obey a safety WARNING symbol CAN result in serious injury to yourself or to others.CAUTION: Signals a MODERATE hazard.Failure to obey a safety CAUTION symbol MAY result in property damage or injury to yourself or to others.

NOTE: Advises you of information or instructions vital to the  operation or maintenance of the equipment.

SPARK ARRESTOR NOTE

NOTE: For users on U.S. Forest Land and in the states of California, Maine, Oregon and Washington. All U.S. Forest Land and the state of California (Public Resources Codes 4442 and 4443), Oregon and Washington require, by law that certain internal combustion engines operated on forest brush and/or grass-covered areas be equipped with a spark arrestor, maintained in effective working order, or the engine be constructed, equipped and maintained for the prevention of fire. Check with your state or local authorities for regulations pertaining to these requirements. Failure to follow these requirements could subject you to liability or a fine. This unit is factory equipped with a spark arrestor. If it requires replacement, contact your local service dealer to install the appropriate muffler assembly.

WARNING: This product can expose you to chemicals including engine exhaust, which is known to the State of California to cause cancer, and carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

NOTE: Advises you of information or instructions vital to the operation or maintenance of the equipment.

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.

  • IMPORTANT SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE OPERATING

WARNING: When using the unit, all safety instructions must be followed. Please read these instructions before operating the unit in order to ensure the safety of the operator and any bystanders. Please keep these instructions for later use.

  • Read the instructions carefully. Be familiar with the controls and proper use of the unit. Know how to stop the unit and disengage the controls quickly.
  • Stay alert. Do not operate this unit when tired, ill or under the influence of alcohol, drugs or medication.
  • Never allow children to operate the unit. Teens must be trained, accompanied and supervised by an adult. Never allow adults to operate the unit without proper instruction.
  • All guards and safety attachments must be installed properly before operating the unit.
  • Inspect the unit before use. Check for damaged parts. Check for fuel leaks. Make sure all parts operate properly. Make sure all fasteners are in place and secure. Make sure all moving parts are properly aligned and are not bound. Replace parts that are cracked, chipped, or damaged in any way. Have all damaged or improperly working parts repaired or replaced by an authorized service center. Do not operate the unit with loose or damaged parts.
  • Be aware of risk of injury to the head, hands and feet.
  • Carefully inspect the area before starting the unit. Remove rocks, broken glass, nails, wire, string and other objects that may be thrown or become entangled with the unit.
  • 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.
  • Do not change the engine governor settings or overspeed the engine.
  • This unit is intended for occasional, household use only.

SAFETY WARNINGS FOR GAS UNITS

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 tank. Never remove the fuel tank cap or add fuel when the engine is hot. Always loosen the fuel tank cap slowly to relieve any pressure in the tank before fueling.
  • Always mix and add fuel in a clean, well-ventilated outdoor area where there are no sparks or flames. DO NOT smoke.
  • Never operate the unit without the fuel cap securely in place. · Avoid creating a source of ignition for spilled fuel. Wipe up anyspilled fuel from the unit immediately, before starting the unit. Move the unit at least 30 ft. (9.1 m) from the fueling source and site before starting the engine. DO NOT smoke. · Never start or run the unit inside a closed room or building. Breathing exhaust fumes can kill. Operate this unit only in a wellventilated outdoor area.

WHILE OPERATING

  • Wear safety glasses or goggles that meet current ANSI / ISEA Z87.1 standards and are marked as such. Wear ear/hearing protection when operating this unit. Wear a face mask 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.
  • Use the unit only in daylight or good artificial light. · Avoid accidental starting. Be in the starting position whenever pulling the starter rope. The operator and unit must be in a stable position while starting. Refer to Starting and Stopping.
  • Use the right tool. Only use this tool for its intended purpose. Only use the unit as described in this manual.
  • Always hold the unit with a firm grip when operating.
  • Do not overreach. Always keep proper footing and balance. Take extra care when working on stairs, steep slopes or inclines. To avoid serious injury, do not operate the unit while on a ladder or a roof.
  • Keep hands, face, and feet away from all moving parts. Do not touch or try to stop moving parts.
  • Do not touch the engine or muffler. These parts get extremely hot from operation, even after the unit is turned off.
  • Do not operate the unit faster than the speed needed to do the job. Do not run the unit at high speed when not in use.
  • Do not force the unit. It will do a better, safer job when used at the intended rate.
  • Always turn the unit off when operation is delayed or when carrying the unit from one location to another. Make sure all moving parts come to a complete stop.
  • Before setting the unit down, always make sure the engine is off and all moving parts have stopped.
  • If the unit strikes or becomes entangled with a foreign object, stop the unit immediately. Check for damage. If damaged, do not restart or operate the unit until it is repaired. Do not operate the unit with loose or damaged parts.
  • Turn the engine off and disconnect the spark plug for maintenance or repair.
  • Use only original equipment manufacturer (OEM) replacement parts and accessories for this unit. These are available from your authorized service dealer. Use of any other parts or accessories could lead to serious injury to the user, or damage to the unit, and void the warranty.
  • Keep the unit clean. Carefully remove vegetation and other debris that could block moving parts.
  • 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.
  • If the unit starts to vibrate abnormally, stop the unit immediately. Inspect the unit for the cause of the vibration. Vibration is generally an indicator of trouble.

BLOWER SAFETY

  • Do not insert anything into the air openings, blower tubes or nozzle. Do not operate the unit if any of the air openings or tubes are blocked. Keep the air openings free from dust, lint, hair and anything else that may reduce airflow.
  • Do not operate the unit without the blower tubes securely attached.
  • Do not use the unit to spray liquids, especially flammable or combustible liquids, such as gasoline. Do not use the unit in areas where such liquids are present.
  • Do not use the unit for spreading chemicals, fertilizer or any other substance that may contain toxic materials.
  • Do not set the unit down on any surface while the unit is running. Debris can be picked up by the air intake and thrown out the discharge opening, resulting in damage to the unit or property or causing serious injury to bystanders or the operator.
  • During operation, never point the unit in the direction of people, animals, windows or automobiles. Always direct blowing debris away from people, animals, windows or automobiles.
  • Use extra caution when blowing debris near solid objects, such as trees, walls, fences, etc. When possible, blow away from such objects, not toward them.
  • Take care when working near valuable plants. The force of the blown air could damage tender plants.
  • Never attempt to clear a clogged air intake opening while the unit is running.
  • Keep hair, fingers and all other body parts away from moving parts and openings.

OTHER SAFETY WARNINGS

  • Maintain the unit with care. Follow all maintenance instructions in this manual.
  • Do not perform maintenance procedures other than those described in this manual. All service, other than the maintenance procedures described in this manual, should be performed by an authorized service dealer.
  • Never remove, modify or make inoperative any safety device furnished with the unit.
  • Before inspecting, maintaining, cleaning, storing, transporting or replacing any parts on the unit:1. Stop the unit. Refer to Starting and Stopping.2. Make sure all moving parts have stopped.3. Allow the unit to cool.4. Disconnect the spark plug wire.
  • Secure the unit while transporting.
  • Never store the unit with fuel in the tank, inside a building where fumes may reach an open flame (pilot lights, etc.) or sparks (switches, electrical motors, etc.).
  • Store the unit in a dry place, secured or at a height to prevent unauthorized use or damage. Keep the unit out of the reach of children.
  • Never douse or squirt the unit with water or any other liquid. Keep handles dry and clean (free from debris, oil and grease). Clean the unit after each use. Refer to Cleaning and Storage. Do not use solvents or strong detergents.
  • Keep these instructions. Refer to them often and use them to instruct other users. If you loan this unit to others, also loan them these instructions.

SAVE THESE INSTRUCTIONS

· SAFETY & INTERNATIONAL SYMBOLS ·

This operator’s manual describes safety and international symbols and pictographs that may appear on this product. Read the operator’s manual for complete safety, assembly, operating and maintenance and repair information.

SYMBOL MEANING
• SAFETY ALERT SYMBOLIndicates danger, warning or caution. May be used in conjunction with other symbols or pictographs.
• READ OPERATOR’S MANUALWARNING: Read the operator’s manual(s) and follow all warnings and safety instructions. Failure to do so can result in serious injury to the operator and/or bystanders.
• WEAR EYE AND HEARING PROTECTION WARNING: Thrown objects and loud noise can cause severe eye injury and hearing loss. Wear eye protection meeting current ANSI / ISEA Z87.1 standards and ear protection when operating this unit. Use a full face shield when needed.
• WEAR FOOT PROTECTIONAlways wear heavy-duty, non-slip footwear when operating this unit.
• WEAR HAND PROTECTIONAlways wear heavy-duty, non-slip gloves when handling this unit.
• UNLEADED FUELAlways use clean, fresh unleaded fuel.
• OILRefer to operator’s manual for the proper type of oil.
• DO NOT USE E85 FUEL IN THIS UNIT CAUTION: It has been proven that fuel containing greater than 10% ethanol will likely damage this engine and void the warranty.
  
• ON/OFF STOP CONTROLON / START / RUN
• ON/OFF STOP CONTROLOFF or STOP
• PRIMER BULBPush primer bulb, fully and slowly, 10 times.
• CHOKE CONTROL1. START position2. RUN position
• THROWN OBJECTS CAN CAUSE SEVERE INJURY WARNING: Small objects can be propelled at high speed, causing injury.
• KEEP BYSTANDERS AWAYWARNING: Keep all bystanders, especially children and pets, at least 50 feet (15 m) from the operating area.
• HOT SURFACEWARNING: Do not touch a hot muffler or cylinder. You may get burned. These parts get extremely hot from operation. When turned off, they remain hot for a short time.
• BLOWERS – ROTATING IMPELLER BLADES CAN CAUSE SEVERE INJURYWARNING: Stop the unit and allow the impeller to stop before changing tubes, cleaning or performing any maintenance. Keep hands and feet away from moving parts.

KNOW YOUR UNIT

APPLICATIONS

  • Cleaning yards, driveways, porches, patios, around walls, fences and more

ASSEMBLY TOOLS REQUIRED

  • Flat-head screwdriver

SPECIFICATIONS*

Engine Type – Air-Cooled, 2-CycleDisplacement – 51 cc (3.11 cu. in.)Spark Plug Gap – 0.025 in. (0.635 mm)Spark Plug – Champion® RDJ8J or equivalent plugLubrication – Fuel/Oil MixtureFuel/Oil Ratio – 50:1Fuel Tank Capacity – 46 oz. (1360 ml)Approximate Unit Weight (No fuel) – 19.5 – 20.5 lbs. (8.9 – 9.3 kg)Air Volume** (measured at: upper tube or lower tube / nozzle – 620 / 385 cfm (17 / 11 m3/min)Air Speed (Peak)** (measured at: upper tube / lower tube / nozzle – 130 / 125 / 220 mph (209 / 201 / 354 km/h)Air Speed (Average)** (measured at: upper tube or lower tube / nozzle) – 105 / 180 mph (169 / 290 km/h)* All specifications are based on the latest product information available at the time of printing. We reserve the right to make changes at any time without notice.** Measured per ANSI B175.2.

ASSEMBLY

WARNING: To avoid serious personal injury and damage to the unit, shut the unit off before removing or installing the blower tubes or the nozzle.WARNING: To prevent serious personal injury, neveroperate the unit without the upper blower tube firmly installed.

ASSEMBLING THE UNIT

  • Always install the upper blower tube.
  • The lower blower tube and nozzle are optional.
  • Use the lower blower tube for most operations.
  • Only use the nozzle to concentrate and intensify the air flow when needed.
  • The nozzle can be installed into the upper blower tube or lower blower tube.

Installing the Flex Tube

  1. Set the unit on a flat, level surface.
  2. Place the large hose clamp around the large end of the flex tube(Fig. 1).
  3. Slide the flex tube and hose clamp onto the elbow tube (Fig. 1).
  4. Tighten the screw on the hose clamp with a flat-head screwdriver (Fig. 1).

Installing the Upper Blower Tube

  1. Set the unit on a flat, level surface.
  2. Place the small hose clamp around the small end of the flex tube(Fig. 2).
  3. Slide the flex tube and hose clamp onto the upper end of theupper blower tube (Fig. 2).
  4. Tighten the screw on the hose clamp with a flat-head screwdriver (Fig. 2). NOTE: A swivel comes pre-installed on the upper blower tube. Do not remove the swivel (Fig. 2).NOTE: Keep the cables straight. Make sure that the cables are not wrapped around the flex tube (Fig. 3).

Installing the Lower Blower Tube

  1. Set the unit on a flat, level surface.
  2. Align the tab on the lower blower tube with the hole on the upper blower tube (Fig. 4).
  3. Push the lower blower tube into the upper blower tube until the tab locks securely into the hole (Fig. 4).

Installing the Nozzle

  1. Set the unit on a flat, level surface.
  2. Align the tab on the nozzle with the hole on the lower blower tube (Fig. 5).
  3. Push the nozzle into the lower blower tube until the tab locks securely into the hole (Fig. 5).

Removing the Lower Blower Tube

  1. Set the unit on a flat, level surface.
  2. Firmly press the tab on the lower blower tube inward and pull the lower blower tube out of the upper blower tube (Fig. 4).

Removing the Nozzle

  1. Firmly press the tab on the nozzle inward and pull the nozzle out of the lower blower tube (Fig. 5).

Adjusting the Throttle Grip

  1. Put the unit on your back (Fig. 13).
  2. Turn the wing nut counterclockwise to loosen the throttle grip (Fig. 6).
  3. Move the throttle grip to a location on the upper blower tube that provides the best grip (Fig. 6).
  4. Turn the wing nut clockwise to tighten the throttle grip securely.Do not operate the unit with a loose throttle grip. 5. Take the unit off your back.

OIL AND FUEL

OIL AND FUEL MIXING INSTRUCTIONS

The use of old and/or improperly mixed fuel is the most common cause of performance problems. Use only fresh, clean unleaded gasoline. Follow the instructions carefully for the proper gasoline/oil mixture.

Definition of Blended FuelsToday’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, forming acids when stored. ALWAYS use fresh fuel (less than 30 days old).NOTE: Dispose of old fuel according to federal, state and local regulations.

Using Blended FuelsIf using a blended fuel:

  • Always use the fresh fuel mix explained in this operator’s manual
  • Use a fuel additive
  • Always agitate the fuel mix before fueling the unit

CAUTION: DO NOT USE E85 FUEL IN THIS UNIT. It has been proven that fuel containing greater than 10% ethanol will likely damage this engine and void the warranty.

Using Fuel Additives

The container of 2-cycle oil provided with this unit includes a fuel additive to help inhibit corrosion and minimize gum deposits. Always use the brand of 2-cycle oil that came with this unit. If this is unavailable, use a 2-cycle oil designed for air-cooled engines and mix it with a fuel additive. 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.

Mixing the FuelNOTE: This unit comes with a 2.6 oz. (77 ml) container of 2-cycle oil. To obtain the correct fuel mixture described below, pour the entire container into one gallon of unleaded gasoline.

FUELING THE UNIT

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 the 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.

  1. Position the unit with the fuel cap facing up.
  2. Slowly remove the fuel cap.
  3. Place the fuel container spout into the fuel tank fill hole and fill the tank.NOTE: Do not overfill the tank.
  4. Wipe up any fuel that may have spilled.
  5. Reinstall the fuel cap.
  6. Move the unit at least 30 ft. (9.1 m) from the fuel container and the fueling site before starting the engine.

CAUTION: For proper engine operation and maximum reliability, pay strict attention to the gasoline and oil mixing instructions on the 2-cycle oil container. Using improperly mixed fuel can severely damage the engine.

Thoroughly mix the proper ratio of unleaded gasoline with 2-cycle engine oil. Do not mix them directly in the unit’s fuel tank. Use a separate fuel can. Use a 50:1 gasoline/oil ratio. See the table below for specific gasoline and oil mixing ratios.

Unleaded gasoline 2-cyle oil
1 gallon U.S. (3.8 litters)
2.6 fl. oz. (77 ml)
1 litter 20 ml

STARTING AND STOPPING

WARNING: Operate this unit only in a well-ventilated outdoor area. Carbon monoxide exhaust fumes can be lethal in a confined area.WARNING: Avoid accidentally starting the unit. To avoid serious injury, the operator and the unit must be in a stable position when pulling the starter rope (Fig. 9).WARNING: When starting the unit, make sure the blower tube or nozzle is not directed toward people, animals, windows, automobiles or loose debris.

STARTING INSTRUCTIONS

NOTE: There is no need to turn the unit on. The On/Off switch is in the On ( I ) position at all times (Fig. 7).NOTE: This unit includes a cruise control, which allows the operator to maintain the desired engine speed without having to squeeze the throttle control.

Before Starting the Unit

  1. Mix gasoline with oil. Refer to Oil and Fuel Mixing Instructions.
  2. Fill the fuel tank. Refer to Fueling the Unit.

Starting the Unit

  1. Slowly press and release the primer bulb 10 times (Fig. 8). If fuel cannot be seen in the primer bulb, press and release the primer bulb until fuel is visible.
  2. Move the choke lever to Position 1 (start) (Fig. 8).
  3. Move the cruise control to the HI (fast) position (Fig. 7).
  4. Stand in the starting position (Fig. 9).NOTE: Keep the cruise control in the HI (fast) position for ALL further steps (Fig. 7).
  5. Pull the starter rope with a controlled and steady motion 5 times (Fig. 9).
  6. Move the choke lever to Position 2 (run) (Fig. 8).
  7. Pull the starter rope with a controlled and steady motion until the unit starts.
  8. Allow the engine to warm up for 60 seconds. The unit may be used during this time.NOTE: The engine is properly warmed up when it accelerates without hesitation.NOTE: Once the engine is properly warmed, the cruise control may be adjusted and the throttle control can be used normally.
  9. Put on the harness. Refer to Using the Harness.IF… the engine hesitates, keep the choke lever in Position 2 (run) (Fig. 8) and continue the warm-up.

IF… the engine does not start after pulling the starter rope 10 times, repeat the starting procedure.IF… the engine fails to start after a few attempts: Move the choke lever to Position 2 (run). Move the cruise control to the HI (fast) position. Pull the starter rope with a controlled and steady motion until the unit starts.IF… the engine is already warm: Move the cruise control to the LO (slow) position. Move the choke lever to Position 2 (run). Pull the starter rope with a controlled and steady motion until the unit starts. If the unit doesn’t start after 5 pulls, repeat the starting instructions.

STOPPING INSTRUCTIONS

  1. Release the throttle control, or move the cruise control to the LO (slow) position, and allow the engine to idle.
  2. Press and hold the On/Off switch in the Off (O) position until theengine comes to a complete stop (Fig. 7).

OPERATION

WARNING: To prevent serious personal injury, never operate the unit without the blower tubes firmly installed.WARNING: Always wear eye, hearing, hand, foot and body protection to reduce the risk of injury when operating this unit. Wear a face mask or dust mask if the operation is dusty. Secure hair above shoulder level.

USING THE HARNESS

Putting On the UnitNOTE: Start the unit before putting it on. Refer to Starting and Stopping.

  1. Place the shoulder supports over both shoulders (Fig. 10). Theengine should rest securely on the operator’s back.
  2. Connect the support clip:● Insert one end of the chest support clip into the other end until it locks into place (Fig. 10).
  3. Tighten the support straps:● Pull the shoulder support straps down to tighten the shoulder supports (Fig. 11).● Pull the chest support strap to the right to tighten the chest support (Fig. 11).The weight of the unit should be supported on the shoulders by the shoulder supports (Fig. 10). Adjust the shoulder supports and chest support as necessary.

Taking Off the Unit

  1. Loosen the support straps:● Pull the tabs on the bottom of the shoulder support buckles up to loosen the shoulder supports (Fig. 12).● Pull the chest support clip up to loosen the chest support (Fig. 12).
  2. Disconnect the support clips:● Squeeze the top and bottom of the chest support clip to disconnect the chest support clip (Fig. 12).
  3. Remove the unit.

HOLDING THE UNIT

  • Stand in the operating position (Fig. 13). Stand up straight. Do not bend over.
  • Keep feet apart and firmly planted.
  • Hold the throttle grip with the right hand. Keep the right arm slightly bent.
  • Make sure the unit is secure and comfortable on the operator’s back.

TIPS FOR BEST RESULTS

  • Conserve water by using the blower instead of a hose to perform many outdoor cleaning actions.
  • Operate the unit only at reasonable hours, not early in the morning or late at night when people might be disturbed. Comply with times listed in local ordinances. Usual recommendations are 9:00 a.m. to 5:00 p.m., Monday through Saturday.
  • To reduce noise levels, operate the unit at the lowest speed needed to do the job. Limit the number of pieces of power equipment used at any one time.
  • Use rakes or brooms to loosen debris before operation.
  • In dusty conditions, slightly dampen surfaces.
  • Use the cruise control to make continuous operation easier (Fig. 7).
  • Watch out for children, pets, open windows and freshly washed cars. Blow debris safely away. Never direct the unit toward anyone while the unit is in operation.
  • Sweep the unit from side to side with the blower tube several inches above the ground. Slowly advance, keeping the accumulated debris in front of the operator.
  • Use the nozzle to concentrate the air flow closer to the ground.
  • Use the nozzle to blow heavier items, such as wet leaves or wet grass clippings.
  • Use the upper or lower blower tube to blow lighter items, such as dry leaves or dry grass clippings.
  • Install the nozzle directly onto the upper blower tube when blowing items at waist height, such as fences or walls.
  • Clean up after operation. Dispose of debris appropriately.

MAINTENANCE

WARNING: To avoid serious personal injury, always stop the engine and allow it to cool before cleaning or maintaining the unit. Never perform cleaning or maintenance while the unit is running. Disconnect the spark plug wire to prevent the unit from starting accidentally.WARNING: Wear protective clothing and observe all safety instructions to prevent serious personal injury.

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 the unit to an MTD authorized service dealer.NOTE: Maintenance, replacement, or repair of the emission control devices and system may be performed by an MTD authorized service dealer.NOTE: Please read the California/EPA statement that came with the unit for a complete listing of terms and coverage for the emissions control devices, such as the spark arrestor, muffler, carburetor, etc.

FREQUENCY

  • Every 10 hours
  • Every 25 hours

MAINTENANCE REQUIRED

  • Clean and re-oil the air filter. Refer to Maintaining the Air Filter and Replacing the Pre-Filter.
  • Check the spark plug condition and gap. Refer to Maintaining the Spark Plug.
  • Replace the pre-filter. Refer to Maintaining the Air Filter and Replacing the Pre-Filter.

MAINTAINING THE AIR FILTER AND REPLACING THE PRE-FILTER

Failure to maintain the air filter or replace the pre-filter can result in poor performance or can cause permanent damage to the engine. Engine failure due to improper air filter maintenance is not covered by the product warranty.

Cleaning the Air Filter

  1. Turn the cover screws counterclockwise to loosen the air filter cover (Fig. 14).
  2. Slide the air filter cover off of the air filter housing (Fig. 14).
  3. Remove the air filter and pre-filter from the air filter housing (Fig. 15).
  4. Gently hand wash the air filter in detergent and water. Rinse the air filter thoroughly and allow it to dry. DO NOT wash the pre-filter.
  5. Lightly coat the air filter with clean SAE 30 oil. DO NOT apply oil to the pre-filter.
  6. Squeeze the air filter to spread and remove excess oil.
  7. Reinstall the pre-filter inside the air filter housing or replace it (Fig. 15).
  8. Place the air filter inside the air filter cover (Fig. 15).
  9. Slide the air filter cover onto the air filter housing.NOTE: Operating the unit without the air filter, pre-filter, and air filter cover will VOID the warranty.
  10. 10. Turn the cover screws clockwise to secure the air filter cover. To avoid stripping the screw, DO NOT over tighten the cover screw.

ADJUSTING THE IDLE SPEED

If the engine will not idle properly:

  1. Start the engine. Refer to Starting and Stopping.
  2. Move the cruise control to the LO (slow) position and let the engine idle.● If the engine stops, increase the idle speed. Use a small Phillips screwdriver to turn the idle speed screw clockwise, 1/8 of a turn at a time, until the engine idles smoothly (Fig. 16).

MAINTAINING THE SPARK PLUG

  1. Stop the engine and allow it to cool. Grasp the spark plug boot firmly and pull it from the spark plug.
  2. Clean around the spark plug. Remove the spark plug from the cylinder head with a 5/8-inch socket, turning counterclockwise.WARNING: Do not sand blast, scrape or clean spark plugelectrodes. Grit in the engine could damage the cylinder.
  3. Inspect the spark plug. If the spark plug is cracked, fouled or dirty, replace it with replacement part #794-00046, a Champion RDJ8J or an equivalent spark plug.
  4. Use a feeler gauge to set the air gap at 0.025 in. (0.635 mm) (Fig. 17).
  5. Install the spark plug in the cylinder head. Tighten the spark plug with a 5/8-inch socket, turning it clockwise until snug.NOTE: If using a torque wrench, torque to: 110-120 in.·lb. (12.3-13.5 N·m). Do not over tighten.
  6. Reattach the spark plug boot.

CLEANING AND STORAGE

CLEANING

WARNING: To avoid serious personal injury, always stop the engine and allow it to cool before cleaning or maintaining the unit.

Use a small brush to clean 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. Wipe off any moisture with a soft cloth.

STORAGE

  • Never store a fueled unit where fumes may reach an open flame or spark.
  • Allow the engine to cool before storing.
  • Lock up the unit to prevent unauthorized use or damage.
  • Store the unit in a dry, well-ventilated area.
  • Store the unit out of the reach of children.

Long-term Storage

  1. Remove the fuel cap, tip the unit and drain the fuel into an approved container. Reinstall the fuel cap.
  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 5 drops 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.
  4. Thoroughly clean the unit and inspect it for any loose or damaged parts. Repair or replace damaged parts and tighten loose screws, nuts or bolts.

Preparing the Unit for Use after Long-term Storage

  1. Remove the spark plug. Tip the unit and drain all of the oil from the cylinder into an approved container. Reinstall the spark plug.NOTE: Do not use fuel that has been stored for more than 30 days. Dispose of old fuel and oil according to federal, state and local regulations.

TROUBLESHOOTING

PROBLEM – SOLUTION

THE ENGINE WILL NOT START

The fuel tank is empty Fill the fuel tank with properly-mixed fuel The primer bulb was not pressed enough Press the primer bulb 10 times or until fuel is visible The engine is flooded Move the cruise control to the HI (fast) position and the choke lever  to Position 2 (run) and pull the starter rope until the engine starts

The fuel is old (over 30 days) and/or improperly mixed Drain the fuel tank and add fresh, properly-mixed fuel The spark plug is fouled Replace the spark plug

THE ENGINE WILL NOT IDLE CORRECTLY

The air filter is dirty Clean or replace the air filterThe fuel is old (over 30 days) and/or improperly mixed Drain the fuel tank and add fresh, properly-mixed fuel The idle speed is incorrect Adjust the idle speed The cables are wrapped around the flex tube Make sure the cables are straight

THE ENGINE WILL NOT ACCELERATE

The fuel is old (over 30 days) and/or improperly mixed Drain the fuel tank and add fresh, properly-mixed fuel The air filter is dirty Clean or replace the air filter

THE ENGINE LACKS POWER OR STALLS

The fuel is old (over 30 days) and/or improperly mixed Drain the fuel tank and add fresh, properly-mixed fuel The air filter is dirty Clean or replace the air filter The spark plug is fouled Replace the spark plug

If further assistance is required, contact an authorized service center.

WARRANTY

MANUFACTURER’S LIMITED WARRANTY FOR:The limited warranty set forth below is given by Troy-Bilt LLC (Troy-Bilt) with respect to new merchandise purchased and used in the United States, its possessions and territories.Troy-Bilt warrants this product against defects in material and workmanship for a period of three (3) years commencing on the date of original purchase and will, at its option, repair or replace, free of charge, any part found to be defective in material or workmanship. This limited warranty shall only apply if this product has been operated and maintained in accordance with the Operator’s Manual furnished with the product, and has not been subject to misuse, abuse, commercial use, neglect, accident, improper maintenance, alteration, vandalism, theft, fire, water or damage because of other peril or natural disaster. Damage resulting from the installation or use of any accessory or attachment not approved by Troy-Bilt for use with the product(s) covered by this manual will void your warranty as to any resulting damage. This warranty is limited to ninety (90) days from the date of original retail purchase for any Troy-Bilt product that is used for rental or commercial purposes, or any other 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, visit our website at www.troybilt.com or www.troybilt.ca, check for a listing in the Yellow Pages, call 1-800-828-5500 or 1-800-668-1238 in Canada, or write to P.O. Box 361131, Cleveland, OH 44136-0019. No product returned directly to the factory will be accepted unless prior written permission has been extended by the Customer Service Department of Troy-Bilt.This limited warranty does not provide coverage in the following cases:A. Tune-ups – Spark Plugs, Carburetor Adjustments, FiltersB. Wear items – Bump Knobs, Outer Spools, Cutting Line, Inner Reels, Starter Pulley, Starter Ropes, Drive Belts, Saw Chains, Guide Bars, Cultivator Tines, Blades.C. Troy-Bilt does not extend any warranty for products sold or exported outside of the United States of America, its possessions andterritories, except those sold through Troy-Bilt’s authorized channels of export distribution. Troy-Bilt reserves the right to change or improve the design of any Troy-Bilt Product without assuming any obligation to modify any product previously manufactured.

No implied warranty, including any implied warranty of merchantability or fitness for a particular purpose, applies after the applicable period of express written warranty above as to the parts as identified. No other express warranty or guaranty, whether written or oral, except as mentioned above, given by any person or entity, including a dealer or retailer, with respect to any product shall bind Troy-Bilt. During the period of the Warranty, the exclusive remedy is repair or replacement of the product as set forth above. (Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.)

The provisions as set forth in this Warranty provide the sole and exclusive remedy arising from the sales. Troy-Bilt shall not be liable for incidental or consequential loss or damages including, without limitation, expenses incurred for substitute or replacement lawn care services, for transportation or for related expenses, or for rental expenses to temporarily replace a warranted product. (Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.)

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In no event shall recovery of any kind be greater than the amount of the purchase price of the product sold. Alteration of the safety features of the product shall void this Warranty. You assume the risk and liability for loss, damage, or injury to you and your property and/or to others and their property arising out of the use or misuse or inability to use the product.This limited warranty shall not extend to anyone other than the original purchaser, original lessee or the person for whom it was purchased as a gift.How State Law Relates to this Warranty: This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.To locate your nearest service dealer, dial 1-800-828-5500 in the United States or 1-800-668-1238 in Canada.

TROY-BILT LLCP.O. Box 361131 Cleveland, OH 44136-0019

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