How to Check Hydraulic Fluid on Kubota Tractor: An Easy to Follow Guide

Kubota tractors are known to be effective equipment for landscaping and farming. To a beginner, how to check hydraulic fluid on Kubota tractor may be quite challenging especially if you are not accustomed to the procedures of doing it.

Remember that knowing how to check the hydraulic fluid on your tractor is part of its basic maintenance. Instructional manuals that come with the machine can be used as reference but some of them may be too technical and hard to follow.

Familiarizing yourself to the procedures on how to check hydraulic fluid on Kubota tractor and the steps to operate it can make it easier for future use. Aside from that, comprehending how your machine operates can also help you in cases such as encountering operating problems.

With this article, I will give you a simple and easy to follow guide on how to check hydraulic fluid on Kubota tractor. Plus, I have added some bonus troubleshooting tips you need to keep in mind.

What You Will Need

Here a few essentials that you must have in order to accomplish the task of successfully checking hydraulic fluid on your Kubota tractor

Kubota Tractor
  • Protective Wear 

Your safety should always come first. Proper eye protection and earplugs should be worn when operating an engine-powered machine. I would also recommend for you to wear a pair of safety boots or work boots. This is to secure your safety and avoid any accidents while working on your tractor.

  • Kubota Tractor

A vehicle that is used for landscaping and more often times agricultural tasks such as tillage. However, nowadays, it can also be used for a wide range of other tasks.

How to Check Hydraulic Fluid on Kubota Tractor?

Once you have obtained the equipment required for this tasks, you can proceed in following the step-by-step guide on how to check the hydraulic fluid on your Kubota tractor.

kubota tractor
  • The first thing that you need to do to check the hydraulic fluid on your Kubota tractor is to know its model. The reason for this is that there are different means of telling if the hydraulic fluid is low depending on the tractor’s model number.

  • Park your Kubota tractor on a flat surface. Make sure that you have turned off the engine before proceeding to the next step to ensure your safety. (Tip: You can check the hydraulic fluid before starting the engine or 5 minutes after the engined has been turned off.)

  • To check the hydraulic fluid level, find where the dipstick is located. This is normally located in the back end housing of your tractor. Draw out the dipstick and then wipe it clean. 

Put it back and then draw it out again. This will tell you the level of your hydraulic fluid. You will notice two notches indicated on the dipstick. Your hydraulic fluid should fall somewhere in between the two notches which indicate that the level is just right.

If in case your tractor model does not include a dipstick, try locating a plug on the housing of the transmission. This can aid you to check the level of the hydraulic fluid on your tractor. 

For other models, these will be equipped with a fill plug and dipstick that can be found under the tractor seat in the rear area. On the other hand, there are models that comes with a gauge level indicator that is on the left hand side, near the clutch.

  • If the level is too low, proceed to add new hydraulic fluid until it reaches the prescribed level indicated. 

Important Tips

If you are using a new or different hydraulic fluid from the previous one that is on your tractor, be sure to remove all of the old hydraulic fluid first before putting the new one. Remember not to mix two different kinds of hydraulic fluid.

If in case the hydraulic fluid is low, do not start the engine. Wait until the hydraulic fluid is at the prescribed level before starting the engine.

To see how this is done, watch this short clip

Things You Need To Know When You Have Low Hydraulic Fluid On Your Kubota Tractor

The first thing you will notice if you suspect that your Kubota tractor might have low hydraulic fluid is hearing noises coming from your tractor. These noises are quite similar to a car that has too low power steering fluid in it.

These noises are usually the result of aeration which typically happens when the tractor has low hydraulic fluid. Because the hydraulic fluid is too low, air gets in the hydraulic system chamber which causes aeration and thus producing such weird noises.

Getting air into the hydraulic system chamber can actually cause deterioration on your hydraulic fluid and in worse case cause damage to the tractor as it loses much needed lubrication. In some cases, this can result to overheating or burnt seals.

kubota tractor

Aside from regularly checking your hydraulic fluid as part of you Kubota tractor’s proper maintenance, you also need to make sure that every fitting is not loose. A loose fitting may also be a reason for losing a few gallons of hydraulic fluid.

If this happens, you might end up with a non-working tractor. That will be the result if the heat inside your tractor fails to dissipate due to the hydraulic fluid level not being properly maintained.

When it comes to putting hydraulic fluid to your Kubota tractor to maintain the prescribed level, you must understand that it has to be of the same type as the hydraulic fluid originally contained on your tractor. In addition to this, Kubota tractors typically use UDT as well as Super UDT hydraulic fluids.

Same as with having too low hydraulic fluid, putting too much on your Kubota tractor can also cause major problems. Too much hydraulic fluid can cause cavitation. Vapor cavities in the fluid which are formed because of too much hydraulic fluid creates a knocking sound.

Furthermore, this will result to metal erosion, hydraulic system damage, and the worse which is mechanical failure.

For addition tips of properly maintaining your Kubota tractor, you can watch this video


Having a step-by-step guide to doing any task can make things a lot easier. Now that you have the knowledge on how to check hydraulic fluid on Kubota tractor, you can ensure proper maintenance of it.

Moreover, you now also know critical things to look out for in order to make sure your machine is in good condition and will run smoothly. Just remember the tips I have mentioned for you to be able to operate your Kubota tractor with ease in the future.

Was this article helpful? Were you able to follow this step-by-step guide? Do you find the additional tips useful? Do you have any other suggestions regarding this topic?

I would like to hear your thoughts about this article. Send your feedback and suggestions by leaving a comment below.

Dan Harris

Hi. I'm Dan Harris. My wife and I started gardening 5 years ago. Neither one of us had any gardening background but we loved the idea of growing our own organic food. Over the years, our garden has almost doubled in size and I’ve learned a lot from my season’s successes and failures. I’ve been excited to share my own beginning knowledge and special skills with all garden lovers.

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