TBC304 - Rototiller TROY-BILT - Free user manual and instructions

Product Type	Garden Cultivator / Rototiller
Brand	Troy-Bilt
Model	TBC304
Engine Type	Air-Cooled, 4-Cycle
Engine Displacement	30 cc (1.83 cu in)
Fuel Type	Unleaded gasoline (do not mix oil)
Fuel Capacity	15 oz (444 ml)
Oil Type	SAE 30 weight oil
Oil Capacity	3.04 oz (90 ml)
Tilling Width	12 inches (30.5 cm)
Tilling Depth	Up to 6 inches (15.2 cm)
Weight (without fuel)	30-31 lbs (13.6-14.1 kg)
Spark Plug	Champion RDZ4H or equivalent
Spark Plug Gap	0.025 inch (0.635 mm)
Warranty	2-year limited warranty (household use)
Safety Features	Throttle control, On/Off switch, spark arrestor, safety symbols
Assembly Required	Yes (wheel assembly, handlebar)
Maintenance	Oil change every 38 hours, air filter cleaning every 10 hours, spark plug check
Parts	OEM replacement parts available; tines, spark plug, air filter
Repairability	Authorized service centers; basic maintenance by user
Intended Use	Occasional household use

Frequently Asked Questions - TBC304 TROY-BILT

How to start the Troy-Bilt TBC304 rototiller?

To start, ensure oil and fuel are added. Press primer bulb 10 times, set choke to position 1, hold throttle control, pull starter rope 5 times, then move choke to position 2 and pull 5-10 times until engine starts. Allow to warm up, then move choke to position 3.

What type of fuel and oil does it use?

Use fresh, clean unleaded gasoline (no ethanol above 10%). Do not mix oil with fuel. Use SAE 30 weight oil for the crankcase; capacity is 3.04 oz (90 ml).

How to adjust tilling depth?

Adjust the wheel assembly height. Lower the wheel for deeper tilling, raise the wheel for shallower tilling. Refer to the manual for exact steps. Always stop the engine and disconnect spark plug before adjusting.

How to change the oil?

Change oil while engine is warm. Unscrew oil fill plug, tip unit to drain oil into container, then refill with 3.04 oz of SAE 30 oil. Dispose of old oil properly. Perform after first 10 hours and every 38 hours thereafter.

Why won't the engine start?

Common causes: empty fuel tank, old fuel (over 30 days), insufficient priming, fouled spark plug, or dirty air filter. Check fuel level and quality, press primer bulb 10 times, clean or replace spark plug and air filter.

How to replace the tines?

Stop engine and disconnect spark plug. Remove cotter pins and clevis pins to slide off old tines. Install new tines with hubs facing each other (single inside, double outside). Secure with clevis and cotter pins. Always wear heavy gloves.

How to clean and store the rototiller?

Clean with a small brush and mild detergent; avoid solvents. Clean tines and apply light machine oil to prevent rust. For storage, drain fuel, run engine until it stops, remove spark plug and add oil to cylinder. Store in dry, ventilated area.

What is the warranty coverage?

Two-year limited warranty for household use covering defects in material and workmanship. Wear items (tines, spark plugs, etc.) are not covered. Commercial use has a 90-day warranty. Warranty service through authorized dealers.

How to adjust idle speed?

Start engine and let it idle. If engine stops, turn idle speed screw clockwise 1/8 turn. If tines rotate, turn screw counterclockwise. Use a Phillips screwdriver and ensure tines are off the ground during adjustment.

How to maintain the air filter?

Clean every 10 hours: open air filter cover, remove foam filter, wash in detergent and water, dry, lightly coat with SAE 30 oil, squeeze out excess. Reinstall. Operating without filter voids warranty.

USER MANUAL TBC304 TROY-BILT

Technical line drawing of a lawn mower with visible blade and wheel components (no text or labels)

SAVE THESE INSTRUCTIONS

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

TABLE OF CONTENTS

Service	2
Safety	2
Know Your Unit	6
Specifications	6
Assembly	7
Oil and Fuel	8
Starting and Stopping	10
Operation	11
Maintenance	12
Cleaning and Storage	16
Troubleshooting	17
Warranty	18

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© 2021 MTD SOUTHWEST INC, All Rights Reserved.

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 1-800-668-1238 (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.

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.

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.

- 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 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 any spilled 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 well-ventilated 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.
• Wear protective footwear that will improve footing on slippery surfaces.
• The tines should remain stationary when the engine idles. If they do not, refer to Adjusting the Idle Speed.
• Make sure the tines are not in contact with anything before starting the unit.
• Use the unit only in daylight or good artificial light.
• Avoid accidental starting. Be in the starting position whenever pulling the starter rope. The operator and unit must be in a stable position while starting. Refer to Starting 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 both hands when operating. Keep a firm grip on the handle.
• Do not overreach. Always keep proper footing and balance. Take extra care when working on stairs, steep slopes or inclines.
• Use extreme caution when reversing or pulling the unit towards you.
• Keep hands, face, and feet away from all moving parts. Do not touch or try to stop moving parts.
• 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 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 moving from one location to another. Make sure all moving parts come to a complete stop.

• 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.
• Use caution when cultivating in hard ground. The tines may catch in the ground and propel the unit forward. If this occurs, release the handlebar(s) and do not restrain the unit.

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:
• Stop the unit. Refer to Starting and Stopping.
• Make sure all moving parts have stopped.
• Allow the unit to cool.
• 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.
• Clean the tines with water. Oil the tines with machine oil to prevent rust.
• 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 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 PROTECTIONWARNING: 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 UNITCAUTION: 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.
-	THROWN OBJECTS CAN CAUSE SEVERE INJURYWARNING: Small objects can be propelled at high speed, causing injury.
-	CHOKE CONTROL1. FULL choke position2. PARTIAL choke position3. RUN choke position
	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 engine, gear housing or muffler. You may get burned. These parts get extremely hot from operation. When turned off, they remain hot for a short time.
	GARDEN CULTIVATORS - ROTATING TINES CAN CAUSE SEVERE INJURYWARNING: Stop the engine and allow the tines to stop moving before installing or removing the tines, or before cleaning or performing any maintenance. Keep hands and feet away from rotating tines.
	NO STEPAlways keep proper footing and balance. Do not overreach, take extra care when working on steep slopes or inclines.
	PLACE RIGHT FOOT HEREAvoid accidental starting. Be in the starting position whenever pulling the starter rope. The operator and unit must be in a stable position while starting.

KNOW YOUR UNIT

APPLICATIONS

• Cultivating sod and light to medium soil
• Cultivating in garden areas, around trees, etc.

SPECIFICATIONS\*

Engine Type	Air-Cooled, 4-Cycle
Displacement.	30 cc (1.83 cu. in.)
Spark Plug Gap	0.025 inch (0.635 mm)
Spark Plug	Champion® RDZ4H or equivalent plug
Lubrication	SAE 30 Oil
Crankcase Oil Capacity	3.04 oz. (90 ml)
Fuel Tank Capacity	15 oz. (444 ml)
Cultivating Path Width (Maximum)	12 inches (30.5 cm)
Cultivating Depth (Maximum)	6 inches (15.2 cm)
Approximate Unit Weight (No fuel)	30 - 31 lbs. (13.6 - 14.1 kg)

* 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.

ASSEMBLY

INSTALLING AND ADJUSTING THE WHEEL ASSEMBLY

WARNING: To avoid serious personal injury, the wheel assembly must be installed before operating the unit.

WARNING: To avoid injury from the tines, wear heavy gloves and a long sleeve shirt when installing or adjusting the wheel assembly.

Installing the Wheel Assembly

1. Insert the wheel assembly into the wheel bracket. The "J" shape of the wheel assembly should point away from the unit (Fig. 1).
2. Align the hole in the wheel bracket with the desired hole in the wheel assembly (Fig. 1).
3. Insert the clevis pin through the aligned holes (Fig. 2).
4. Insert the cotter pin into the clevis pin (Fig. 2).
   NOTE: It may be necessary to adjust the position of the wheel assembly before using the unit.

Adjusting the Wheel Assembly

1. Remove the cotter pin from the clevis pin (Fig. 2).
2. Remove the clevis pin from the wheel bracket and wheel assembly (Fig. 2).
3. Align the hole in the wheel bracket with the desired hole in the wheel assembly (Fig. 1).

NOTE: Moving the wheel assembly down will raise the wheel height. Moving the wheel assembly up will lower the wheel height.

1. Insert the clevis pin through the aligned holes (Fig. 2).

2. Insert the cotter pin into the clevis pin (Fig. 2).

Fig. 1

Fig. 2

POSITIONING THE HANDLEBAR

1. Set the unit upright.
2. Loosen the knobs (Fig. 4).
3. Swing the handlebar up into the operating position (Fig. 3).
   NOTE: Take care not to pinch the cables when positioning the handlebar (Fig. 4).
4. Tighten the knobs securely.
   NOTE: Do not over tighten the knobs.
5. Readjust the cables so they are smooth and tight against the handlebar.

OIL AND FUEL

USING THE RIGHT OIL

Use a high-quality SAE 30 weight oil. DO NOT use dirty oil. Failure to use clean oil of the correct type can cause premature engine wear and failure.

ADDING OIL: INITIAL USE

WARNING: DO NOT overfill the crankcase. OVERFILLING THE CRANKCASE MAY CAUSE SERIOUS PERSONAL INJURY.

NOTE: This unit was shipped without oil in the crankcase. Oil must be added before starting the unit.

NOTE: Never add oil to the fuel tank. This unit has a four-cycle engine. DO NOT mix oil with gasoline.

1. Set the unit on a flat, level surface. Tip the unit back so that the handlebar touches the ground and the engine is in a horizontal position (Fig. 5).
2. Unscrew the oil fill plug (Fig. 6).
3. Pour 3.04 fluid oz. (90 ml) of oil into the oil fill hole (Fig. 6).
   NOTE: This unit comes with a 3.04 fluid oz. (90 ml) container of oil.
   NOTE: DO NOT overfill. Refer to Checking the Oil Level.
4. Wipe up any oil that may have spilled.
5. Make sure the O-ring is in place on the oil fill plug (Fig. 6).
6. Reinstall the oil fill plug.
   NOTE: DO NOT overfill. Refer to Checking the Oil Level.
7. Wipe up any oil that may have spilled.
8. Make sure the O-ring is in place on the oil fill plug (Fig. 6).
9. Reinstall the oil fill plug.

The use of old fuel is the most common cause of performance problems. Use only fresh, clean unleaded gasoline.

NOTE: This unit has a four-cycle engine. 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, 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 Fuels

If using a blended fuel:

• Always use fresh unleaded gasoline
- Use a fuel additive

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

Use a fuel additive to inhibit corrosion and minimize gum deposits. 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.

Line drawing of a manual lawn mower with a blade and gear mechanism (no text or symbols)

Fig. 5

Fig. 6

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.

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: The tines may rotate during the starting process. Always stand in the starting position. Use one foot to hold the wheels in place. Tilt the unit back slightly to bring the tines off the ground (Fig. 9).

Fig. 7

STARTING INSTRUCTIONS

NOTE: There is no need to turn the unit on. The On/Off switch is in the On (1) position at all times (Fig. 7).

Before Starting the Unit

1. Check the oil level. Refer to Checking the Oil Level.
2. Fill the fuel tank. Refer to Fueling the Unit.

Starting the Unit

PRIME:

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 (Fig. 8).
3. Stand in the starting position (Fig. 9). Hold the handlebar firmly with one hand. Hold the starter rope with the other hand. Use one foot to hold the wheels in place.
4. Tilt the unit back slightly to bring the tines off the ground (Fig. 9).
5. Squeeze and hold the throttle control (Fig. 7).

NOTE: Continue to SQUEEZE and HOLD the throttle control for ALL further steps.

1. Pull the starter rope with a controlled and steady motion 5 times (Fig. 9). DO NOT pull the starter rope more than 5 times.

START:

1. Move the choke lever to Position 2 (Fig. 8).
2. Pull the starter rope with a controlled and steady motion 5 to 10 times to start the engine.
3. Allow the engine to warm up for 60 seconds.
4. Move the choke lever to Position 3 (Fig. 8). Allow the engine to warm up for an additional 60 seconds. The unit may be used during this time.

NOTE: The engine is properly warmed up when it accelerates without hesitation.

IF... the engine hesitates, return the choke lever to Position 2 and continue the warm-up.
IF... the engine does not start, repeat the starting procedure.
IF... the engine fails to start after a few attempts: Tilt the unit back slightly to bring the tines off the ground. Use one foot to hold the wheels in place. Move the choke lever to Position 3. Squeeze and hold the throttle control. Pull the starter rope with a controlled and steady motion until the unit starts.

IF... the engine is already warm: Tilt the unit back slightly to bring the tines off the ground. Use one foot to hold the wheels in place. Move the choke lever to Position 3. Squeeze and hold the throttle control. Pull the starter rope with a controlled and steady motion until the unit starts.

STOPPING INSTRUCTIONS

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

OPERATION

WARNING: Dress properly to reduce the risk of injury when operating this unit. Do not wear loose clothing or jewelry. Wear eye and ear/hearing protection. Wear heavy long pants, boots and gloves. Do not wear short pants, sandals or operate barefoot.

OPERATING TIPS

1. Move the cultivator to the work area prior to starting the engine. Refer to Moving the Unit.

WARNING: To prevent serious personal injury, never pick up or carry the unit while the engine is running.

1. Start the unit as described in the Starting Instructions.
2. Tilt the unit back until the tines clear the ground.
3. With the tines off the ground, squeeze the throttle control to increase the engine speed.
4. Hold the handlebar firmly with both hands and slowly lower the unit until the tines make contact with the ground (Fig. 10).
5. As cultivating action begins, pull back on the cultivator so that the tines can penetrate the ground.

WARNING: To prevent serious personal injury, use extreme caution when reversing or pulling the unit towards you.

1. Once the ground has been broken, continue at a moderate pace until you are familiar with the controls and the handling of the cultivator.
2. Pull the cultivator backwards to improve the depth of cultivation and reduce your effort.
3. If the tines are digging too deep or not deep enough, adjust them according to Adjusting the Tine Depth.

ADJUSTING THE TINE DEPTH

The tines should penetrate most garden soils approximately 4 to 5 inches. If necessary, adjust the tines as follows:

1. Stop the engine and allow it to cool. Grasp the spark plug wire firmly and pull the cap from the spark plug.
2. Raise the wheel height for shallower tine penetration or lower the wheel height for deeper tine penetration. Refer to Adjusting the Wheel Assembly in the Assembly Instructions section.
3. Reconnect the spark plug wire and continue use.

MOVING THE UNIT

WARNING: To prevent serious personal injury, always stop the engine when operation is delayed or when moving the unit from one location to another.

1. Stop the engine.
2. Tilt the unit back until the tines clear the ground.
3. Push or pull the unit to the next location.

Line drawing of a person using a power tool to cut a saw (no text or symbols present)

Fig. 10
Operating Position

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 MAINTENANCE REQUIRED
Every 10 hours	Clean and re-oil the air filter. Refer to Maintaining the Air Filter.
After the first 10 hours and at 38 hours	Change the oil. Refer to Changing the Oil.Have the rocker arm clearance checked by an authorized service dealer.Check the spark plug condition and gap.Refer to Maintaining the Spark Plug.

REPLACING THE TINES

WARNING: To prevent serious personal injury, always wear heavy gloves when handling the tines.

All tines should be replaced at the same time because they will wear evenly through normal use. Work on one side at a time.

Preparing the Unit for Tine Removal

1. Stop the engine and allow it to cool. Grasp the spark plug wire firmly and pull the cap from the spark plug.
2. Set the unit on a flat, level surface. Tip the unit back so that the handlebar touches the ground and the engine is in a horizontal position (Fig. 13).

NOTE: It may be necessary to wash dirt off the tines and tine shafts before removing the tines.

Removing the Old Tines

1. Remove the cotter pin from the clevis pin (Fig. 11). Remove the clevis pin from the double tine and tine shaft.
2. Slide the tines off of the tine shaft.
3. Repeat this process for the other side.

Installing the New Tines

1. Clean and oil the tine shaft.
2. Slide the new tines onto the tine shaft. The hubs must face toward each other (Fig. 12). Install the single tine first. Then install the double tine. Align the hole on the double tine with the hole on the tine shaft (Fig. 12).
3. Insert a clevis pin through the aligned holes (Fig. 11). Insert a cotter pin into the clevis pin.
4. Repeat this process for the other side.
5. Reconnect the spark plug wire.

Fig. 11

Fig. 12

CHECKING THE OIL LEVEL

WARNING: Check the oil level before each use. The importance of maintaining the proper oil level cannot be overemphasized.

1. Stop the engine and allow it to cool.
2. Set the unit on a flat, level surface. Tip the unit back so that the handlebar touches the ground and the engine is in a horizontal position (Fig. 13).

NOTE: Failure to keep the engine level may result in oil overfill.

1. Clean the area around the oil fill plug (Fig. 14) to prevent debris from entering the oil fill hole (Fig. 14).

2. Unscrew the oil fill plug.

3. Look into the oil fill hole; use a flashlight if necessary. The oil level should just touch the bottom thread of the oil fill hole (Fig. 15).

- If the oil level is too low, add a small amount of oil to the oil fill hole until the oil is at the correct level.

WARNING: DO NOT overfill the crankcase. OVERFILLING THE CRANKCASE MAY CAUSE SERIOUS PERSONAL INJURY.

- If the oil level is too high, tip the unit and drain the excess oil into an appropriate container (Fig. 16).

1. Wipe up any oil that may have spilled.
2. Make sure the O-ring is in place on the oil fill plug (Fig. 14).
3. Reinstall the oil fill plug.

Line drawing of a manual lawn mower with a gear and blade (no text or symbols)

Fig. 13

Fig. 14

Fig. 15

CHANGING THE OIL

Change the oil while the engine is still warm. The oil will flow freely and carry away more impurities.

1. Clean the area around the oil fill plug (Fig. 14) to prevent debris from entering the oil fill hole.
2. Unscrew the oil fill plug.
3. Tip the unit vertically to pour the oil out of the oil fill hole and into a container (Fig. 16). Allow ample time for complete drainage.

NOTE: Dispose of the old oil according to federal, state and local regulations.

1. Wipe up any oil that may have spilled.
2. Pour 3.04 fl.oz. (90 ml) of SAE 30 oil into the oil fill hole.

NOTE: DO NOT overfill. Refer to Checking the Oil Level.

1. Wipe up any oil that may have spilled.
2. Make sure the O-ring is in place on the oil fill plug (Fig. 14).
3. Reinstall the oil fill plug.

Technical line drawing of a mechanical device with a stand (no text or symbols)

Fig. 16

MAINTAINING THE AIR FILTER

Failure to maintain the air 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. Open the air filter cover: unscrew the cover screw and swing the air filter cover to the right (Fig. 17).
2. Remove the air filter (Fig. 18).
3. Wash the air filter in detergent and water. Rinse the air filter thoroughly and allow it to dry.
4. Lightly coat the air filter with clean SAE 30 oil.
5. Squeeze the air filter to spread and remove excess oil.
6. Reinstall the air filter (Fig. 18).

NOTE: Make sure the metal screen is seated in the air filter housing before reinstalling the air filter (Fig. 18).

NOTE: Operating the unit without the air filter and air filter cover will VOID the warranty.

1. Close the air filter cover: insert the hooks on the air filter cover into the slots on the air filter housing. Swing the air filter cover to the left and align the cover screw with the cover screw hole (Fig. 19). Tighten the cover screw to secure the air filter cover.

NOTE: Do not over tighten as this may strip the screw.

Fig. 18

Fig. 19

ADJUSTING THE IDLE SPEED

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

If the engine will not idle properly:

1. Start the engine. Refer to Starting and Stopping.
2. Release the throttle control and let the engine idle.

NOTE: Make sure the tines are not in contact with the ground when adjusting the idle speed.

• If the engine stops, increase the idle speed. U
  Phillips screwdriver to turn the idle speed screw clockwise,
  1/8 of a turn at a time, until the engine idles smoothly (Fig. 20).
• If the tines rotate when the engine idles, reduce the idle speed.
  Turn the idle speed screw counterclockwise, 1/8 of a turn at a
  time, until the tines stop moving (Fig. 20).

Fig. 20

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

1. Inspect the spark plug. If the spark plug is cracked, fouled or dirty, replace it with replacement part #794-00082, a Champion RDZ4H or an equivalent spark plug.
2. Use a feeler gauge to set the air gap at 0.025 in. (0.635 mm) (Fig. 21).
3. 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.

1. Reattach the spark plug boot.

Fig. 21

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.

Clean the tines with a household cleaner to remove gum buildup. Wipe the tines with a light machine oil to prevent rust.

STORAGE

WARNING: Store the unit out of the reach of children. Lock up the unit to prevent unauthorized use or damage.

WARNING: Store the unit in a dry, well-ventilated area. Never store a fueled unit where fumes may reach an open flame or spark. Allow the engine to cool before storing.

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 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.
2. Change the oil. Refer to Changing the Oil.
   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 fresh fuel
The primer bulb was not pressed enough Press the primer bulb 10 times or until fuel is visible
The fuel is old (over 30 days) Drain the fuel tank and add fresh fuel
The spark plug is fouled Replace the spark plug
THE ENGINE WILL NOT IDLE
The air filter is dirty Clean or replace the air filter
The fuel is old (over 30 days) Drain the fuel tank and add fresh fuel
The idle speed is incorrect Adjust the idle speed
THE ENGINE WILL NOT ACCELERATE
The fuel is old (over 30 days) Drain the fuel tank and add fresh fuel
The tines are bound with dirt or grass Stop the engine, remove the spark plug, and clean the tines
The air filter is dirty Clean or replace the air filter
THE ENGINE LACKS POWER OR STALLS
The fuel is old (over 30 days) Drain the fuel tank and add fresh 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.

MANUFACTURER'S LIMITED WARRANTY FOR:

TROY-BILT®

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 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 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, Filters
B. 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 and territories, 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.)

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 LLC

P.O. Box 361131

Cleveland, OH 44136-0019

TROY-BILT®

Manual del Operador

TBC304

Technical line drawing of a lawn mower with visible blade and wheel components (no text or labels)

CONSERVE ESTAS INSTRUCCIONES

Line drawing of a manual lawn mower with a blade and gear (no text or symbols)

Fig. 5

Line drawing of a person using a tiller machine to cut a small wheel (no text or symbols)

Line drawing of a manual lawn mower with a gear and blade (no text or symbols)

Fig. 13

Technical line drawing of a mechanical component mounted on a stand (no text or symbols)

Fig. 16

MANTENIMIENTO DEL FILTRO DE AIRE