11 Common John Deere 1435 Problems(With Solutions)

When it comes to lawn care equipment, John Deere is a name that stands out for its reputation and reliability. The John Deere 1435 is a popular ride-on mower known for its efficiency in maintaining lawns.

However, like any other machine, it may encounter some issues during its lifetime.

In this post, we will explore common problems that users may face with the John Deere 1435 and provide troubleshooting tips to help you get back to maintaining a beautiful lawn.

Let’s jump in.

John Deere 1435 Problems

1. Engine Starting Issues

One of the most common problems users may encounter is difficulty starting the engine. If your John Deere 1435 is not starting, there are several potential causes to consider.

First, check the fuel level and ensure there is enough gasoline in the tank. Additionally, inspect the spark plug to see if it needs cleaning or replacement.

If the issue persists, it is advisable to consult a professional technician for further diagnosis and repairs.

2. Uneven Cutting

An uneven cutting pattern can be frustrating and lead to an unsightly lawn appearance. If you notice that your John Deere 1435 is cutting the grass unevenly, the first step is to check the mower blades.

Dull or damaged blades can result in an irregular cut. Sharpen or replace the blades as needed.

Also, make sure the deck is level and adjust it if necessary for an even cutting height.

3. Loss of Power

Experiencing a sudden loss of power while using the mower can be alarming. In such cases, it’s essential to check the air filter and clean or replace it if it’s clogged.

A dirty air filter can restrict airflow, affecting the engine’s performance. Additionally, inspect the fuel filter and fuel lines for any blockages or damage.

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4. Transmission trouble

If you notice difficulty shifting gears or a lack of responsiveness in the transmission, it could indicate transmission problems.

Insufficient transmission fluid levels might be the culprit, so make sure to check the fluid levels regularly. If the fluid is low, top it up to the recommended level and inspect for any leaks.

5. Electrical System Malfunctions

Issues with the electrical system can lead to various problems with your John Deere 1435. Check the battery for corrosion and ensure it is charged adequately.

Also, inspect the wiring for any signs of damage or loose connections. Electrical problems can be intricate, so it’s best to seek professional help if needed.

6. Excessive Vibration

Excessive vibration during mowing can cause discomfort and affect the mower’s overall performance. Inspect the blades for any damages or imbalances that may lead to the vibration.

Damaged or worn-out blades should be replaced immediately. Moreover, check the tires for proper inflation and balance.

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7. Steering Difficulties

Steering difficulties can make mowing a challenging task. If you encounter this problem, check the steering linkage to ensure it’s not damaged or misaligned.

Lubricate the steering components regularly for smoother operation. If the problem persists, it’s best to have a professional examine the steering system.

8. PTO Malfunction

The Power Take-Off (PTO) system on the John Deere 1435 is responsible for powering the mower deck. If you experience issues with the PTO, check the drive belt for any wear or damage.

A loose or worn-out drive belt can affect the PTO’s efficiency. Adjust or replace the belt as necessary.

9. Overheating

Mowing for extended periods in hot weather can lead to overheating issues. Check the engine’s cooling fins for dirt or debris buildup and clean them thoroughly. Ensure proper airflow around the engine to prevent overheating.

10. Unusual Noises

Unusual noises coming from the mower can be an indication of underlying problems. Investigate the source of the noise by checking various components, such as belts, pulleys, and engine parts.

Tighten or replace any loose or damaged parts to resolve the issue.

Read Lawn Mower Makes Grinding Noise When Trying to Start(Solved)

11. Hydraulic System Problems

The hydraulic system in the John Deere 1435 is crucial for its proper functioning.

If you notice any leaks in the hydraulic system or experience a lack of power in the attachments, inspect the hydraulic hoses and connections. Address any leaks and replenish hydraulic fluid if necessary.

12. Fuel Efficiency Concerns

If you notice a decrease in fuel efficiency, consider checking the air filter, spark plug, and fuel system.

Regular maintenance can significantly improve fuel efficiency and overall performance.

13. Steering Wheel Shaft Issues

A damaged or bent steering wheel shaft can impede the mower’s maneuverability. Inspect the steering wheel and shaft for any damages and replace them if needed.

14. Battery Problems

A weak or faulty battery can cause starting issues. Regularly check the battery’s health and ensure it is charged. Replace the battery if it no longer holds a charge.

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Maintenance Tips for John Deere 1435

To keep your John Deere 1435 ride-on mower running at its best, regular maintenance is essential.

Here are some important maintenance tips.

Maintenance TaskFrequencyDescription
Check Engine OilBefore each useEnsure the engine oil level is within the recommended range. Top up if necessary using the specified oil type.
Inspect Air FilterEvery 25 hoursCheck the air filter for dirt and debris. Clean or replace it as needed to maintain proper airflow to the engine.
Check Spark PlugEvery 100 hoursInspect the spark plug for wear and proper gap. Clean or replace it if necessary to ensure efficient engine ignition.
Inspect Drive BeltEvery 50 hoursCheck the drive belt for signs of wear, cracks, or fraying. Replace it if damaged or excessively worn to maintain proper power transfer.
Lubricate Steering SystemEvery 25 hoursApply lubricant to the steering components to ensure smooth and responsive steering.
Inspect BatteryEvery 50 hoursCheck the battery for corrosion and ensure the terminals are tight. Charge the battery if needed, or replace it if it no longer holds a charge.
Clean Mower DeckAfter each useRemove grass clippings and debris from the mower deck to prevent buildup and ensure even cutting.
Sharpen Mower BladesEvery 25 hoursKeep the mower blades sharp for a clean cut. Sharpen them at least once every mowing season or more frequently if needed.
Inspect TiresEvery 50 hoursCheck the tire pressure and look for any signs of damage or excessive wear. Inflate the tires as needed and replace them if they are severely worn.
Check Hydraulic FluidEvery 100 hoursInspect the hydraulic fluid level and look for any leaks in the system. Top up the fluid or repair leaks as required.
Clean Cooling FinsEvery 25 hoursRemove dirt and debris from the engine’s cooling fins to prevent overheating. A clean cooling system ensures optimal engine performance.
Inspect Steering WheelEvery 25 hoursCheck the steering wheel and shaft for damages or bends. A well-maintained steering system enhances maneuverability.
Check Transmission FluidEvery 100 hoursInspect the transmission fluid level and look for any leaks. Top up the fluid or address leaks to ensure smooth gear shifting.
Grease Mower SpindlesEvery 25 hoursApply grease to the mower spindles to reduce friction and prolong their lifespan.
Inspect PTO SystemEvery 50 hoursCheck the Power Take-Off (PTO) system for any issues with engagement or disengagement. Ensure the PTO components are functioning correctly.
Clean Fuel SystemEvery 50 hoursKeep the fuel system clean by using clean fuel and adding a fuel stabilizer if storing the mower for an extended period.

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Final Remarks

The John Deere 1435 is a reliable and efficient ride-on mower, but like any machinery, it may encounter issues over time.

Regular maintenance and prompt troubleshooting can help keep your mower running smoothly.

For complex problems, always seek the assistance of a qualified technician.

Read John Deere SPN Codes(A to Z Codes)


How often should I sharpen the mower blades?

It is recommended to sharpen the mower blades at least once every mowing season, or more frequently if needed.

Can I use regular automotive oil in the engine?

No, always use the recommended engine oil specified in the user manual.

How to prevent grass clippings from clumping under the deck?

Mow the lawn when it is dry, and avoid cutting too much grass at once to prevent clumping.

Should I drain the fuel tank before winter storage?

Yes, it is advisable to drain the fuel tank or use a fuel stabilizer to prevent fuel deterioration during winter storage.

Where can I find authorized John Deere service centers?

You can find authorized service centers on the official John Deere website or by contacting their customer support.

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George Bill
George Bill

George Bill is a Mechanical Engineer by Profession and an avid gardener and has been mowing his lawn for over 20 years. He has used a variety of different mowers during this time.
George is an expert at maintaining his mowers and over the years, he has learned many tricks and techniques for getting the best results from his mowers and is always happy to share his knowledge on this site.