Mercedes Mullins
If you want to drain the fuel tank on a 773 Bobcat skid loader, there are a few methods you can use. One way is to locate the drain plug at the bottom of the tank, which can be accessed by going to the fill spout hose and finding the cover underneath the machine in this location. Another method is to take the line loose on the line coming from the tank, as the 753 model has a squeeze ball primer that can be loosened and pumped out. It is recommended to check the machine before proceeding. Additionally, you can siphon the fuel out of the tank into clear glass gallon jugs, allowing you to inspect the fuel for any water contamination.
How to Drain Fuel Tank on 773 Bobcat Skid Loader
| Characteristics | Values |
|---|---|
| Plug Location | At the bottom of the tank, directly below the fill spout hose |
| Drain Process | Remove the cover underneath the machine to access the plug, or take the line loose on the line coming from the tank |
| Tank Material | Plastic |
| Additional Considerations | Ensure the tank is near empty before draining to avoid spills; use a new grommet and plug if necessary |
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What You'll Learn
Removing the tank
To remove the tank of your Bobcat 773 skid loader, first ensure the tank is almost empty to avoid making a mess. Then, crawl under the machine from the rear and locate the small plate with three bolts in the centreline of the machine. Remove this plate, and you will see a metal plug in a seal grommet at the bottom of the tank. Before removing this plug, get a new grommet and plug. The tank is plastic, and you don't want to have to replace it. Once you have the new parts, pluck out the old plug, and the fuel will start to drain.
If you cannot find the plug, there are alternative methods to drain the tank. One way is to take the line loose on the line coming from the tank. The 753 model has a squeeze ball primer, so you can take it loose and pump the fuel out. Another option is to siphon the fuel out. To do this, make a siphon hose with a brass "klunk" to get the hose to the bottom of the tank without curling up.
If you are removing the tank because water has gotten into the fuel, there are a few extra steps you should take. First, pump clean fuel through the pump with the key on and the engine off. Then, loosen the high-pressure lines at the injection nozzles and close them up one by one. This will help minimise damage, as water can etch and erode the finely finished mating surfaces.
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Locating the drain plug
To locate the drain plug on your 773 Bobcat skid loader, start by identifying the fill spout hose. This hose goes straight down to the tank neck, and the drain plug is located directly below it. Go underneath the machine and look for a cover or a small plate with three bolts in it directly beneath the fill spout hose location. Remove this cover or plate, and you should see the drain plug inside the tank neck.
The drain plug is usually located in the centerline of the machine. It is often made of metal and is stuck in a seal grommet at the bottom of the fuel tank. Before removing the drain plug, it is recommended to ensure that the fuel tank is almost empty to avoid spills and messes.
In some cases, the previous owner may have lost the original plug and replaced it with a bolt in the grommet. If you encounter a bolt instead of a plug, exercise caution and consult a Bobcat dealer or a mechanic for advice.
Additionally, if you cannot locate the drain plug, there might be an alternative method to drain the fuel tank. You can try to take the line loose on the line coming from the tank. The 753 model, for example, has a squeeze ball primer that can be taken loose, allowing you to pump out the fuel.
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Using a siphon hose
To drain the fuel tank on a 773 Bobcat skid loader, one method is to use a siphon hose. This method is useful if you want to avoid removing the tank, as some Bobcat models apparently do not have a drain.
First, ensure the tank is near empty to avoid making a mess. Then, crawl under the machine from the rear and locate a small plate in the centerline of the machine. Remove this plate, and you will see a metal plug in a seal grommet at the bottom of the tank. Before removing anything, it is advised to get a new grommet and plug. The fuel tank is plastic, and you do not want to risk having to replace it.
Next, remove the plug from the grommet. Be aware that the previous owner may have lost the plug and put a bolt in the grommet, so be prepared for this possibility. Once the plug is removed, the fuel should start to drain.
If you are dealing with water in the fuel tank, you can siphon the fuel into clear glass gallon jugs. Do this a gallon at a time, inspecting the fuel for water at the bottom as you go. After allowing the contents to settle and separate, dump the fuel back into the "bad" drum. Continue this process until you have drained the entire tank.
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Crawling under the machine
To drain the fuel tank on a Bobcat 773 skid loader, you will need to crawl under the machine from the rear. Before you do this, it is recommended to get the tank near empty to prevent making a mess. Once you are under the machine, you will need to locate a small plate with three bolts in the centerline of the machine. Remove this plate, and you will see a metal plug stuck in a seal grommet in the bottom of the tank. This is the drain plug.
To access the drain plug, carefully pluck it out of the seal grommet. Be sure to have a new grommet and plug on hand before removing the old one, as the fuel tank is plastic, and you don't want to risk damaging it. Once the drain plug is removed, the fuel will start to drain out. If you are unable to locate the drain plug or if it is difficult to access, there is another method you can try.
You can take the line loose on the line coming from the tank. The Bobcat 753 model has a squeeze ball primer, so you can take it loose and pump the fuel out. However, it is always a good idea to check what you find before attempting this method.
If you are dealing with water in the fuel tank, it is recommended to siphon the fuel into clear glass gallon jugs. This will allow you to inspect the fuel for water and minimize further damage, as water can cause etching and erosion in the system. Additionally, you may need to remove the tank entirely if there is no drain plug accessible.
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Pumping out the tank
To pump out the tank of your Bobcat 773 skid loader, begin by ensuring the tank is almost empty. Crawling under the machine from the rear, you should find a small plate in the centerline of the machine. Remove this plate and you will see a metal plug stuck in a seal grommet in the bottom of the tank. Before removing this plug, it is recommended that you get a new grommet and plug. The tank is plastic, and you do not want to have to replace it.
Once you have the new parts to hand, remove the plug from the grommet. Place the old plug somewhere safe, as you will need to put it back in later. The fuel should begin to drain out of the tank. If the tank is not completely empty, you may want to collect the fuel in a container to reuse later.
If you are unable to find the plug, another method is to take the line loose on the line coming from the tank. The 753 model has a squeeze ball primer, which you can take loose and then pump out.
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Frequently asked questions
There is a drain plug on the bottom of the tank. To access the plug, go to the fill spout hose and look directly underneath, where you will find a cover. Remove this cover to access the plug in the tank.
Before you begin, ensure the tank is almost empty to avoid making a mess. Crawl under the machine from the rear and locate a small plate in the centerline of the machine. Remove this plate and you will see a metal plug in a seal grommet at the bottom of the tank. Remove the plug and the fuel will begin to drain.
You may need to remove the tank, but first, try the following: take your return line off the pump and pump clean fuel through it with the key on and the engine off. Loosen the high-pressure lines at the injection nozzles and then close them up one by one. This should minimize any damage caused by water in the system.
Drain a small amount of fuel into a clear glass container and allow it to settle. If there is water in the fuel, it will appear as a separate layer at the bottom of the container.
