Maintaining a pristine lawn is a breeze with the John Deere riding lawn mower, a robust machine renowned for its precision cutting and effortless operation. However, if you’re having trouble starting your trusty John Deere, fear not! This comprehensive guide will walk you through the troubleshooting process, ensuring your lawn mower roars back to life in no time. Whether you’re a novice or a seasoned homeowner, these clear and concise instructions will empower you to tackle this common issue and get your lawn looking immaculate once more.
Before delving into the specifics, it’s crucial to ensure that your lawn mower is properly prepared for starting. Begin by checking the fuel level; an empty tank is a common culprit for starting woes. If necessary, replenish the fuel using fresh, clean gasoline. Additionally, inspect the oil level and top it off if needed. A low oil level can hinder the engine’s ability to start smoothly. Lastly, make sure the battery is fully charged or replaced if necessary. A weak battery can struggle to provide the necessary power to ignite the engine.
Once you’ve ensured that the basics are covered, it’s time to focus on the starting procedure itself. Firstly, engage the parking brake and ensure that the deck is in the “up” position. Next, locate the ignition key and insert it into the ignition switch. Turn the key to the “on” position, but do not attempt to start the engine yet. This allows the fuel pump to prime the engine with fuel. After a few moments, turn the key to the “start” position and crank the engine until it starts. If the engine fails to start after a few attempts, release the key and wait a few minutes before trying again. This allows the starter motor to cool down and prevents it from overheating.
Preparation Before Starting
Before attempting to start your John Deere riding lawn mower, it is crucial to take the necessary preparatory steps to ensure a safe and successful operation. Here’s a detailed guide on the essential preparation tasks:
Safety Precautions
- Read the Operator’s Manual: Familiarize yourself with the specific instructions and safety guidelines for your mower model.
- Wear Protective Gear: Wear closed-toe shoes, long pants, work gloves, and eye protection to prevent injuries.
- Choose a Safe Location: Start the mower on a flat, stable surface free of obstacles and debris. Avoid starting it in enclosed areas to prevent carbon monoxide buildup.
- Inspect the Mower: Check the oil and fuel levels, ensure the blades are sharp and securely fastened, and inspect the overall condition of the mower for any damage or leaks.
- Remove the Obstacles: Clear the mowing area of any toys, sticks, stones, or other objects that could cause damage or injury during operation.
Fuel Preparation
- Use Clean Fresh Fuel: Always use fresh, clean gasoline with an octane rating of 87 or higher. Avoid using gas containing more than 10% ethanol.
- Fill the Fuel Tank: Follow the instructions in the operator’s manual to fill the fuel tank to the appropriate level. Do not overfill the tank.
- Check the Fuel Filter: Regularly inspect the fuel filter to ensure it is clean and free from debris. A clogged fuel filter can restrict fuel flow and prevent the mower from starting.
Starting the Mower
- Set the Parking Brake: Engage the parking brake to prevent the mower from moving before you start it.
- Select the Start Position: Refer to the operator’s manual to determine the specific start position for your mower model.
- Insert the Key: Insert the ignition key and turn it to the "On" position.
- Pull the Throttle Lever: Most John Deere riding mowers require you to pull the throttle lever to the "Start" position.
- Pull the Starter Cord: If your mower is equipped with a starter cord, pull it firmly and steadily. If it does not start after a few pulls, repeat the process.
- Release the Starter Cord: Once the engine starts, release the starter cord to prevent it from being damaged.
Ignition System Overview
An ignition system provides an electric spark to the engine’s cylinder. The spark ignites the air-fuel mixture, causing it to burn. The burning gases create heat and pressure, which force the piston down the cylinder. The crankshaft converts the up-and-down motion of the piston to rotary motion, which is transferred to the wheels through a transmission.
The ignition system consists of several components, including the battery, ignition switch, ignition coil, distributor (or distributorless ignition system), spark plugs, and wiring. The battery provides power to the ignition system. The ignition switch turns the ignition system on and off. The ignition coil converts the battery’s low voltage to a high voltage that is required to create a spark. The distributor (or distributorless ignition system) distributes the spark to the spark plugs. The spark plugs produce the spark that ignites the air-fuel mixture.
Ignition Coil
The ignition coil is a transformer that converts the battery’s low voltage to a high voltage. The high voltage is required to create a spark that will ignite the air-fuel mixture. The ignition coil consists of two coils of wire, a primary coil and a secondary coil. The primary coil is connected to the battery and the secondary coil is connected to the distributor or distributorless ignition system.
When the ignition switch is turned on, current flows through the primary coil. This creates a magnetic field in the primary coil. The magnetic field collapses when the ignition switch is turned off. This causes a high voltage to be induced in the secondary coil. The high voltage is then sent to the distributor or distributorless ignition system.
The table below shows the specifications of the ignition coil for a John Deere riding lawn mower:
| Specification | Value |
|---|---|
| Voltage | 12 volts |
| Resistance | 0.5 ohms |
| Inductance | 5 henries |
Throttle Controls and Operation
The throttle controls the engine speed, which in turn affects the mower’s speed and power. There are typically two types of throttle controls on riding lawn mowers: a lever or a pedal.
Throttle Lever
Throttle levers are located on the right-hand side of the mower, near the steering wheel. To increase the engine speed, push the lever forward. To decrease the engine speed, pull the lever backward.
Throttle Pedal
Throttle pedals are located on the floor of the mower, near the operator’s feet. To increase the engine speed, press down on the pedal. To decrease the engine speed, release the pedal.
The throttle setting should be adjusted according to the mowing conditions. For example, when mowing thick grass, the throttle should be set to a higher speed to provide more power. When mowing thin grass, the throttle can be set to a lower speed to conserve fuel.
Table: Throttle Settings
| Mowing Condition | Throttle Setting |
|---|---|
| Thin grass | Low |
| Thick grass | High |
| Mulching | High |
| Bagging | Medium |
Gear Shift and Speed Selection
The gear shift lever on a John Deere riding lawn mower typically offers three speed settings: low, medium, and high. The appropriate gear selection depends on the terrain and mowing conditions.
Low gear is ideal for mowing in tight spaces, such as around trees or flower beds, or when navigating slopes. It provides the slowest speed and maximum torque for controlled movement.
Medium gear is suitable for general mowing applications on level ground. It offers a balance between speed and torque, allowing for efficient coverage while maintaining good control.
High gear is recommended for open areas and less challenging terrain. It provides the highest speed, allowing for quick mowing of large lawns. However, it may compromise stability on uneven ground.
The table below summarizes the gear shift and speed selections for different mowing conditions:
| Mowing Condition | Recommended Gear |
|---|---|
| Tight spaces, slopes | Low |
| Level ground, general mowing | Medium |
| Open areas, large lawns | High |
Blade Engagement and Disengagement
**Starting the Blades:**
1. Make sure the mower is in neutral and the parking brake is engaged.
2. Locate the blade engagement lever or switch on the control panel.
3. Pull the lever or press the switch to engage the blades.
**Disengaging the Blades:**
1. Release the blade engagement lever or switch to disengage the blades.
2. Wait for the blades to come to a complete stop before dismounting the mower.
Safety Precautions:
**Important:**
- Never start the blades while you are seated on the mower or within the operator’s station.
- Always disengage the blades before crossing gravel roads, sidewalks, or other hard surfaces.
- Check the blade engagement system regularly to ensure it is operating properly.
- Never engage the blades when there are objects or debris in the mowing area.
| Blade Engagement System Types | Operation |
|---|---|
| Manual Lever | Pull lever towards the operator to engage, release to disengage. |
| Electric Switch | Press switch to engage, press again to disengage. |
| Hydrostatic PTO System | Moving the drive pedal forward engages the blades, releasing the pedal disengages them. |
Maintenance Check Before Use
1. Check Fuel Level
Ensure the fuel tank is filled with fresh gasoline. Avoid using stale fuel as it can damage the engine.
2. Inspect Oil Level
Check the oil level using the dipstick. Add oil if the level is low, using the recommended type and weight specified in the user manual.
3. Check Air Filter
A dirty air filter can restrict airflow and reduce engine performance. Inspect the air filter for dirt and debris, and replace if necessary.
4. Inspect Spark Plug
The spark plug ignites the fuel-air mixture. Check for fouling or damage, and replace if needed.
5. Inspect Mower Blades
Sharp blades ensure a clean cut. Inspect the blades for dullness, cracks, or bends. Sharpen or replace as required.
6. Check Drive Belt
The drive belt transmits power from the engine to the wheels. Inspect the belt for wear, cracks, or fraying, and replace if damaged.
7. Check Battery Charge
A fully charged battery is essential for starting the engine. Check the battery terminals for corrosion, and clean if necessary. Test the battery using a voltmeter to ensure it has sufficient charge.
8. Additional Maintenance Checks
- Check tire pressure and adjust to recommended levels.
- Inspect steering components for loose bolts or play.
- Clean the mower deck and underside of the machine to prevent grass buildup.
- Periodically lubricate moving parts according to the user manual.
- Inspect the fuel lines for leaks or damage.
- Store the mower in a dry, protected area when not in use.
Troubleshooting Common Issues
John Deere riding lawn mowers are known for their reliability, but even these machines can experience occasional issues. Here are some common problems and solutions to help you get your mower up and running again:
Battery Problems
A weak or dead battery is a common cause of starting problems. Check the battery terminals for corrosion and clean them if necessary. Make sure the battery is securely connected and has a strong charge. If the battery is old, it may need to be replaced.
Spark Plug Problems
A fouled or damaged spark plug can prevent the engine from starting. Remove the spark plug and inspect it for wear or damage. Clean or replace the spark plug as needed.
Fuel Problems
Ensure there is enough fuel in the tank and that the fuel is fresh. Old or contaminated fuel can cause starting problems. Check the fuel filter for clogs and replace it if necessary.
Starter Solenoid Problems
A faulty starter solenoid can prevent the starter from engaging. Listen for a clicking sound when you turn the key. If you hear a click, but the starter doesn’t engage, the solenoid may be faulty and needs to be replaced.
Electrical Problems
Loose or damaged electrical connections can cause starting issues. Check the wiring harness for any loose or damaged connections. Tighten or repair any loose connections as needed.
Mower Deck Problems
If the mower deck is engaged, it can prevent the engine from starting. Disengage the mower deck and try starting the engine again.
Safety Switches
Safety switches are designed to prevent the engine from starting if certain conditions are not met. Check the seat switch, PTO switch, and any other safety switches to ensure they are functioning properly.
Engine Problems
If the engine has been sitting for a long period of time, it may require some priming before it will start. Follow the manufacturer’s instructions for priming the engine.
Starter Motor Problems
A faulty or worn starter motor can prevent the engine from starting. If you hear a grinding or clicking sound when you turn the key, the starter motor may be damaged. Inspect the starter motor for wear or damage and replace it if necessary.
| Symptom | Possible Cause |
|---|---|
| Engine won’t crank | – Dead battery – Faulty starter solenoid – Loose electrical connections |
| Engine cranks but won’t start | – Fuel problems – Spark plug problems – Engine problems |
| Engine starts but runs rough | – Fuel problems – Spark plug problems – Air filter problems |
How To Start John Deere Riding Lawn Mower
Starting a John Deere riding lawn mower is a simple process that can be completed in just a few steps. Follow these instructions to start your mower quickly and easily.
- Check the oil level. Make sure the oil level is between the “full” and “add” marks on the dipstick. If the oil level is low, add oil until it reaches the “full” mark.
- Check the fuel level. Make sure the fuel tank is full of gasoline. If the fuel tank is low, add gasoline until it reaches the “full” mark.
- Engage the parking brake. Pull the parking brake lever back to engage the parking brake.
- Sit in the seat. Sit in the seat of the mower and make sure your feet are on the floor.
- Insert the key into the ignition. Insert the key into the ignition switch and turn it to the “on” position.
- Start the mower. Pull the starter cord to start the mower. Once the mower starts, release the starter cord.
- Disengage the parking brake. Push the parking brake lever forward to disengage the parking brake.
- Drive the mower. Drive the mower to the desired location and start mowing.
People Also Ask
How do I troubleshoot a John Deere riding lawn mower that won’t start?
There are several things you can do to troubleshoot a John Deere riding lawn mower that won’t start.
- Check the battery. Make sure the battery is charged and the terminals are clean and tight.
- Check the spark plug. Remove the spark plug and check for spark. If there is no spark, replace the spark plug.
- Check the fuel filter. Replace the fuel filter if it is dirty or clogged.
- Check the air filter. Replace the air filter if it is dirty or clogged.
- Check the fuel pump. Replace the fuel pump if it is not working properly.
How do I maintain a John Deere riding lawn mower?
To maintain a John Deere riding lawn mower, you should do the following:
- Change the oil and filter every 50 hours of use.
- Sharpen the blade every 25 hours of use.
- Clean the mower deck after each use.
- Check the tire pressure before each use.
- Store the mower in a dry place when not in use.
