
If you own a John Deere 855 tractor, you may have experienced issues with the fuel tank. Some users have reported that their tractor is hard to start, while others have encountered problems with the fuel line. In this article, we will provide a step-by-step guide on how to drain the fuel tank on your John Deere 855 tractor, as well as offer troubleshooting tips to identify any underlying issues. By following these instructions, you can ensure that your tractor runs smoothly and efficiently.
How to Drain Fuel Tank John Deer 855 Tractor
| Characteristics | Values |
|---|---|
| Fuel System | Mechanical fuel pump |
| Fuel Type | Diesel |
| Fuel Line | Siphon feed or drawn from a mechanical pump |
| Fuel Tank Drain Method | Remove the gas tank and tip it over a bucket |
| Fuel Filter | Sediment bowl |
| Common Issues | Hard to start, fuel line popping off, hydraulic hose blowout |
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What You'll Learn

Removing the gas tank to drain the fuel
If your John Deere 855 tractor is hard to start, draining and replacing the fuel can help. The best way to drain the tank is by removing the gas tank. Here is a step-by-step guide on how to do it:
First, pull up on the back of the fender deck and then remove the fender deck to expose the gas tank. Next, disconnect the fuel line from the top of the fuel tank using needle-nose pliers. Be sure to wipe up any spilled fuel. Then, pull the transaxle reservoir up and out from the right side of the gas tank. After that, lift the fuel tank off the machine and twist the fuel cap off.
Now that the fuel tank has been removed, you can proceed to drain the fuel. Place the fuel tank over a bucket and gently shake it until all the gas has been drained. You may need to tip the fuel tank gently to ensure that all the fuel comes out. Remember to handle the fuel with care and take the appropriate safety measures.
Once the fuel tank is empty, you can inspect it for any signs of contamination or damage. If the fuel appears contaminated or if there is debris inside the tank, it is important to clean or replace the fuel tank before refilling it with fresh fuel. Always refer to the official John Deere manual or seek professional assistance if you are unsure about any steps or procedures.
Additionally, if your tractor is having fuel flow issues, you can try loosening the nut on the sediment bowl and blowing into the fuel tank to troubleshoot the problem. This may help dislodge any blockages and improve fuel flow. Remember to exercise caution when working with fuel, and always perform maintenance and repairs in a well-ventilated area.
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Using a skinny O-ring to seal the tank
If you are experiencing issues with your John Deere 855 tractor, such as a popped fuel line, you may need to use a skinny O-ring to seal the tank and prevent fuel leakage. Here is a step-by-step guide on how to do this:
First, inspect the fuel line and identify the source of the problem. In some cases, the fuel line may have popped out of the fuel bowl housing, as it has a groove in the fitting that suggests the use of an O-ring. Look inside the hole to check if there is an O-ring or any remnants of one. This will help you determine if the O-ring is missing or damaged and needs to be replaced.
Next, source a tiny, skinny O-ring that is slightly smaller than the groove in the fitting. You may need to visit a hardware store or an authorised John Deere parts dealer to find the appropriate size. It is important to find one that is a bit too small so that you can stretch it over the fitting for a tight seal.
When you have the O-ring, apply a suitable lubricant to it. This will help you fit the O-ring into the groove more easily and ensure a better seal. Use a lubricant that is compatible with fuel and won't degrade the O-ring material.
Now, stretch the lubricated O-ring over the fuel line fitting and carefully push it into the groove. Ensure that it is seated properly and securely in place. This should create a tight seal and prevent any further leakage from the fuel tank.
Finally, reassemble any components that you had to remove to access the fuel line. Start your tractor and observe if there is any remaining fuel leakage. If the issue is resolved, you have successfully used a skinny O-ring to seal your John Deere 855 tractor's fuel tank.
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Draining the tank by tipping it over a bucket
To drain the fuel tank of a John Deere 855 tractor by tipping it over a bucket, follow these steps:
Firstly, pull up on the back of the fender deck and then remove the fender deck to expose the gas tank. Be sure to disconnect the fuel line from the top of the fuel tank using needle-nose pliers. Wipe up any spilled fuel to avoid any accidents or damage.
Next, pull the transaxle reservoir up and out from the right side of the exposed gas tank. Carefully lift the fuel tank off the tractor. Now, you can twist the fuel cap off the tank.
Finally, tip the fuel tank over a bucket and gently shake it until all the fuel has drained out. Ensure you are in a well-ventilated area when performing this task, and take the necessary precautions to avoid any fuel spillage or contact with skin.
This method of draining the fuel tank by tipping it over a bucket is a straightforward and effective way to ensure your John Deere 855 tractor's fuel system is maintained and any contaminated fuel is removed.
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Disconnecting the fuel line with pliers
To disconnect the fuel line using pliers, first, make sure you are using the correct type of pliers. Needle-nose pliers are ideal for this task.
Now, locate the fuel line. It is connected to the top of the fuel tank. Once you have located it, use the pliers to grip the fuel line firmly. Be careful not to crush or damage the fuel line. Gently pull and twist the fuel line to disconnect it from the fuel tank.
After you have disconnected the fuel line, some fuel may spill out. Have a clean cloth or rag ready to wipe up any spills. It is important to be cautious when handling fuel and to ensure the area is well-ventilated.
If the fuel line is difficult to remove, you may need to gently rock the pliers back and forth to loosen it. Do not force it, as this may damage the fuel line or the fuel tank. If you are having trouble, it may be helpful to refer to a repair manual or seek assistance from a qualified technician.
Once the fuel line is disconnected, you can proceed with draining the fuel tank or performing any necessary maintenance or repairs. Remember to exercise caution when working with fuel and to dispose of any spilled fuel properly.
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Loosening the nut on the sediment bowl
To drain the fuel tank of your John Deer 855 tractor, you must first loosen the nut on the sediment bowl. This is because the sediment bowl can become empty, causing the tractor to stop working.
The process of loosening the nut on the sediment bowl involves the following steps:
Firstly, locate the sediment bowl. This is usually found at the bottom of the fuel tank. It is important to identify this component accurately, as it plays a crucial role in trapping dirt, water, and other contaminants before they reach the engine.
Next, you will need to loosen the nut that secures the sediment bowl in place. Before beginning this step, ensure you have the appropriate tools, such as a compatible wrench or socket that can securely grip the nut. It is also recommended to have a tray or container ready to catch any fuel that may spill during the process. Place the tray or container under the sediment bowl to collect any dripping fuel.
Now, carefully begin to loosen the nut. Apply force in a counter-clockwise direction, using the appropriate tool. Be cautious not to apply excessive force, as this may damage the nut or the surrounding components. It is also important to be gentle to avoid any potential injury. If the nut is tightly secured, you may need to apply some penetrating oil or lubricant to help loosen it. Allow a few minutes for the lubricant to work before attempting to loosen the nut again.
Once the nut is loosened, you can proceed to remove it by hand or with the tool, whichever is more convenient. With the nut removed, you will now have access to the sediment bowl. This process of loosening the nut is a critical step in draining the fuel tank, as it allows you to address any issues within the sediment bowl, ensuring the tractor's optimal performance.
In summary, loosening the nut on the sediment bowl of your John Deer 855 tractor is a delicate but important task, requiring attention to detail and a methodical approach. By following these steps, you can effectively access the sediment bowl, ensuring the smooth operation of your tractor and preventing any potential issues caused by a clogged or empty sediment bowl.
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