Nakayama Pro MB6510 Tiller

Main Parts

The following lists the main components of the Nakayama Pro MB6510 tiller:

1. Throttle switch

2. Clutch handle

3. ON/OFF switch

4. Handle adjuster

5. Depth adjuster

6. Inner fender

7. Outer fender

8. Working gearshift lever

9. Walking gearshift lever

10. Frontal bumper

Safety Instructions

Caution: Read the manual carefully before use. Failure to follow warnings and instructions may lead to unit damage, injury, or property damage. Keep the manual in a safe place for future reference.

• Wear safety glasses.
• Maintain a safe distance from the rotating blade to avoid injury.
• Wear hearing protection.
• Avoid smoking near fuel. Keep fuel away from flames and sparks.
• Fire hazard. Gasoline is highly flammable.
• Wear anti-slip safety boots.
• Do not touch the exhaust or other engine parts while the unit is operating. Risk of burns.
• Keep bystanders at a safe distance from the work area.

Training

• Familiarize yourself with the operation of all controls on the unit.
• Children are never allowed to operate the machine. Persons who have not read the operating instructions are not permitted to use the machine.
• Keep all bystanders and pets away from the work area.

Preparation

• Check the work area and remove all obstacles.
• Before starting the engine, leave all clutches disengaged and set the ON/OFF switch to OFF.
• Wear protective clothing and anti-slip safety boots to improve stability on slippery surfaces.
• Gasoline is highly flammable. Handle fuel with care.
• Do not make any adjustments to the unit while the engine is running.
• Wear safety glasses when operating the unit and performing maintenance.

Operation

• Keep all parts of your body away from rotating parts.
• Be especially careful when moving the unit over gravel surfaces and sidewalks.
• If the unit hits a hard object, stop the engine and thoroughly check if the machine is damaged. If the unit is damaged, ensure it is repaired before using it again.
• Maintain a stable footing at all times when operating the machine.
• If the machine vibrates intensely, stop the engine immediately and check for the cause. Restart the machine only after the cause of the problem has been eliminated.
• Always turn off the engine before leaving the machine, before clearing jammed blades, and before performing inspection, maintenance, and repair work.
• Always turn off the engine and ensure all moving parts are stationary before clearing jammed blades, removing obstacles, performing maintenance or repair work, and checking the machine.
• Engine exhaust fumes are harmful to health. Do not operate the engine indoors.
• Ensure all guards and bumpers are in place and in good condition before operating the machine.
• Be careful not to dig too deep and avoid moving the machine too quickly to prevent overloading.
• Do not use the machine at high speed on slippery surfaces. Look behind you and be especially careful when reversing.
• Use only attachments and equipment approved by the machine manufacturer.
• Do not operate the machine in conditions of poor visibility or poor lighting.
• Be careful when working on hard ground, as the machine may be pushed forward when the blade enters the ground.
• Do not operate the machine on steep slopes.
• Be careful when operating the machine on uphill and downhill slopes.

Repair and Storage

• Keep the machine, attachments, and equipment in safe operating condition.
• Periodically check the machine and tighten any loose bolts to ensure safe operation.
• Store the machine indoors, away from fire and flammable materials. Ensure the engine is cool before storing the machine indoors.

Machine Condition

• Do not operate the machine if the controls are not functioning properly.
• Do not operate the machine if it has been assembled incorrectly or modified in any way.
• Do not operate the machine if it is damaged or in poor condition.

Operators

• The operator must be familiar with the operation of all controls on the unit.
• The operator must have read or received instructions for the proper and safe use of the machine.
• Dress appropriately. Do not wear loose clothing or jewelry. Keep hair, clothing, and gloves away from moving parts. Loose clothing, jewelry, or long hair can get caught in moving parts.
• Do not operate the machine if you feel fatigued.
• Persons who meet the following conditions are not permitted to operate the machine: Persons under the influence of alcohol or other substances. Persons suffering from illnesses that prevent safe operation. Pregnant women, minors, and persons with reduced mental capacity.

Working Conditions

• The distance between the unit and bystanders must not be less than 5 meters.
• The ground slope must not exceed 5°.
• The ground surface must be flat and free of obstacles in the soil.
• Visibility must be good.

Before Use

• Check and confirm that all parts are in good condition.
• Before starting the machine, ensure the clutch is disengaged and the throttle switch is in the start position.
• Before operating the machine, install the appropriate blades for the task and the depth adjuster, and confirm that the equipment is functioning correctly.
• Avoid contact with dangerous parts of the unit, such as rotating parts and parts that heat up during operation.

Movement

• Before moving, let the engine run without load to ensure it operates safely.
• Ensure the throttle switch and clutch move smoothly, that rotating parts rotate smoothly, and that the auto-return handle returns normally.

Operation

• The engine must be turned off before removing debris, grass, and other residue from the blades.
• When the blade enters the ground and cannot move forward, turn off the engine and manually unblock the blade.

Transport

• Turn off the engine and engage the drive wheel before transporting the unit.
• When crossing roads, observe traffic safety regulations and maintain a safe distance from other vehicles and bystanders.
• Do not transport people or objects with the machine.

Emergency Inspection

If any of the following conditions occur, the operation of the machine must be stopped immediately for inspection:

• Blades are jammed by plant debris and mud.
• The engine or gearbox makes abnormal noises.
• Engine RPM increases excessively and the throttle control is not working.

Fuel

• The unit's fuel tank must be filled with gasoline with an octane rating of 95# or higher.
• Do not fill the fuel tank with the wrong type of fuel, as this may cause engine damage.

Technical Specifications

*The manufacturer reserves the right to make minor changes to the product design and technical specifications without prior notice, unless such changes significantly affect the performance and safety of the products. The parts described/illustrated in the manual you hold may apply to other models in the manufacturer's product line with similar characteristics and may not be included in the product you have just purchased.

*To ensure product safety and reliability, as well as warranty validity, all repair, inspection, repair, or replacement work, including maintenance and special adjustments, must be performed only by technicians from the manufacturer's authorized Service department.

*Always use the product with the supplied equipment. Operating the product with unintended equipment may cause damage or even serious injury or death. The manufacturer and importer are not liable for injuries and damages resulting from the use of unintended equipment.

Assembly

1. Remove the entire machine from the packaging box.
2. Install the drive wheel or work wheel on both ends of the transmission output shaft and secure it with the 8x40 axle pin and cotter pin.
3. Install the blades on both ends of the transmission output shaft and secure it with the 8x50 axle pin and cotter pin.
4. Install the support rod to the fender bracket and tighten it with the 8x50 axle pin and cotter pin.

Handlebar Assembly:

1. Place the handlebar frame on the rotating plate, secure it with 1 pressure plate, 2 internal hex bolts M10x20, and a spring washer.
2. Attach the decorative cover to the handlebar frame, secure it with 2 M6x12 bolts and M6 nuts.

Bumper Assembly:

Attach the outer bumper to the inner bumper adjustment bracket and tighten it with 4 M8x16 bolts and 4 M8 nuts.

Important: At the end of the assembly process, check that all parts are correctly installed.

Operating Instructions

Clutch Handle Adjustment (Fig. 1)

• Grip and release the clutch handle repeatedly. If the handle is too tight or too loose, adjust it with the adjustment bolt.

Fuel and Oil Filling

Caution:

• Before use, fill the machine with the appropriate amount of clean oil for four-stroke engines. The engine's lifespan will be reduced if other types of oil or dirty oil are used. Oil type: SAE15-40W.
• If the oil level is too low and the engine is started, the engine will be damaged.
• Fill the fuel tank only with clean gasoline with an octane rating of 92# or higher. Do not use other types of fuel or dirty fuel.

Oil Filling

1. Place the machine in a horizontal position.
2. Insert the appropriate amount of oil into the hole in the gearbox. The oil level should be between the upper and lower limits. (Fig. 2)
3. Insert the appropriate amount of oil into the air filter box. Open the air filter cover, clean the dust, and insert the oil. Do not overfill with oil, as this will affect air intake or engine performance.
4. Fill the fuel tank with the appropriate amount of fuel.

Starting the Machine

Caution: Before starting, ensure that the drive and work gear levers are in neutral. Do not start the engine without the air filter installed. Before starting the engine, the clutch handle must be in the OFF position (disengaged) to prevent injury. In case of emergency, stop the engine immediately and release the clutch handle. Be sure to prime the engine before operating the machine. After pulling the starter cord, do not let it snap back into the engine abruptly to avoid damaging the starter cord. Ensure the starter cord returns slowly.

Operation

• During operation, pay attention to the operating status and sound of each component and check if all connections are tight. Tighten any loose connections. If abnormal conditions occur, stop the machine, inspect, and eliminate the problems.
• Do not perform heavy work immediately after starting.
• Check the engine and gearbox oil levels and refill the oil immediately when it is insufficient.
• Do not cool the engine with water.
• To avoid blade damage, do not let the blades come into contact with stones or any hard objects.
• Regularly clean the machine and remove any dirt and grass from the blades.
• Frequently clean the sponge filter in the air filter.
• Set the ON/OFF switch to the ON position with your left hand.
• Set the throttle to the medium position with your right hand.
• Pull the starter cord slowly and repeatedly with your right hand to circulate oil inside the engine and lubricate the engine parts, then pull the cord forcefully to start the engine. Do not close the choke when starting the engine in summer or when the engine is hot.
• Open the choke and let the engine idle and run without load for 2 to 3 minutes after starting.
• Check if the engine is operating correctly. If the engine is not operating correctly, turn it off, inspect it to find the cause of the problem, and use the machine only after the problem has been eliminated.
• Prevent the machine from tipping over during operation.
• Be sure to stop the blade rotation before moving the machine.

Connecting the Drive Wheel

• Secure the drive wheel with a pin.

Connecting the Blade

• Select the required blade. Secure it with a small pin.
• After installation, secure the blade by rotating it counterclockwise.

Moving the Drive Gear Lever (Fig. 3)

1. Release the clutch handle.
2. Set the drive gear lever to the forward position.
3. Set the work gear lever to neutral.
4. Slowly engage the clutch handle to engage the clutch. The machine can now move forward.

Moving the Work Gear Lever (Fig. 3)

1. Release the clutch handle.
2. Set the work gear lever to the forward or reverse position.
3. Slowly engage the clutch handle to engage the clutch. The machine can now perform furrowing/tilling operations.

Handle Adjustment (Fig. 4)

• Grip the handle adjuster to adjust the handle up and down, left and right.

Furrow Depth Adjustment (Fig. 5)

• Remove the cotter pin and move the support wheel bracket upwards to increase the furrow depth. Move the support wheel bracket downwards to decrease the furrow depth.

Stopping the Machine

1. Disengage the clutch by releasing the clutch handle.
2. After shifting to neutral, the machine stops operating.
3. Set the throttle switch to the minimum position.
4. Set the ON/OFF switch to OFF to stop the engine.

Note: Ensure the unit is on level ground with the gear lever in neutral.

Maintenance

Air Filter

• Dirty or damaged air filters can cause damage to the carburetor or engine.
• Be sure to maintain the air filter regularly. If the engine is used in a dustier environment, increase the maintenance frequency.
• Open the air filter cover and remove the paper filter.
• Remove dust from the paper filter. Be careful not to damage the paper filter.
• Install the paper filter and replace the air filter cover.

Engine Maintenance

Daily maintenance (before and after work)

• Listen and observe for abnormal phenomena in all parts (such as abnormal noise, overheating, and loose bolts, etc.).
• Check the engine and gearbox for oil leaks.
• Check the engine and gearbox oil levels. The oil level should be between the upper and lower limits of the oil dipstick.
• Remove dirt, grass, and oil from the machine and its components.

Maintenance every 150 operating hours

• Wash the gearbox and change the oil.
• Check and adjust the clutch and gear shifting system.

Maintenance every 800 operating hours

• Perform the maintenance tasks required every 150 operating hours.
• Check all gears and bearings, replace parts if they are severely worn.
• Check the tilling blades and connecting bolts. If they are damaged, replace them.

Maintenance every 1500-2000 operating hours

Request that the unit be serviced by the manufacturer's service department.

Recommended Maintenance Schedule

Before long-term storage of the machine, the following measures should be taken to prevent corrosion:

• Clean dust and dirt from the surface.
• Drain the engine oil and refill with new engine oil.
• Drain the fuel from the fuel tank.
• Unscrew the nuts under the carburetor, remove the fuel in the carburetor, then reassemble the nuts and tighten them.
• Apply anti-rust oil to non-aluminum surfaces.
• Store the machine in an indoor, ventilated, dry, and safe place.

Troubleshooting