How to Change Hydraulic Fluid in Zero Turn Mower?

To change hydraulic fluid in a zero turn mower, locate the drain plug and remove it to drain the old fluid. Then, refill the hydraulic reservoir with fresh fluid to the appropriate level.

Changing hydraulic fluid regularly helps to maintain the mower’s performance and prevent expensive repairs. Neglecting to replace the old fluid can cause damage to the mower’s hydraulic system, leading to expensive repairs. Learning how to change hydraulic fluid is a task that is important for the longevity of not just zero turn mowers, but all hydraulic equipment. In this guide, we will go over the simple steps required to change hydraulic fluid in a zero turn mower. So, let’s dive in and learn how to maintain your zero turn mower and keep it running efficiently.

How to Change Hydraulic Fluid in Zero Turn Mower?


Understanding Hydraulic Fluid In Zero Turn Mower

Hydraulic fluid is what powers the hydraulic systems in zero turn mowers. It is crucial to use the right fluid to ensure proper movement of the machine. Using the wrong fluid can cause significant damage to the hydraulic system. Regularly changing the hydraulic fluid is essential in maintaining the mower’s performance and efficiency.

Signs of needing a fluid change include leaks, decreased power, and strange noises. There are different types of hydraulic fluids available, and it is important to use the recommended type for your mower. Follow the manufacturer’s instructions and guidelines to ensure safe and proper handling when changing the fluid.

By understanding the importance of hydraulic fluid and proper care, you can extend the lifespan of your zero turn mower.

Gathering Tools And Materials

Gathering the necessary tools and materials is crucial before changing hydraulic fluid in a zero-turn mower. You will need a oil drain pan, a socket wrench set, a funnel, a new hydraulic filter, and of course, the right type of hydraulic fluid.

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Ensure that the hydraulic fluid you choose is compatible with your mower’s model, as using the wrong type can cause serious damage. Once you have your tools and materials ready, prepare the mower by positioning it on a level surface and engaging the parking brake.

An important note – always read your mower’s owner’s manual carefully before performing any maintenance task. With the right tools, materials, and preparation, changing hydraulic fluid in your zero-turn mower can be done with ease!

Avoid a $2000 Mistake Changing Hydro Fluid on Zero Turn Mower

Draining The Hydraulic Fluid

Changing the hydraulic fluid in your zero turn mower can prolong its lifespan. Before getting started, locate the hydraulic reservoir and ensure the engine is cool. Then, drain the old fluid by placing a drain pan underneath the machine and opening the drain valve.

Once the fluid has been drained, remove the filter and replace it with a new one. Finally, add the recommended amount of hydraulic fluid to the reservoir. Remember to dispose of the old fluid properly and check for leaks after installation.

With these steps, you can change the hydraulic fluid in your zero turn mower and keep it running smoothly for years to come.

Refilling With Fresh Fluid

To refill the hydraulic fluid in a zero turn mower, first, check the fluid level. Add fresh fluid to the recommended level. To avoid any air bubbles, bleed the system by raising and lowering the mower deck. Repeat the process to ensure all the air bubbles are removed.

This process will help the mower to operate efficiently. Be cautious not to overfill the system, as it can cause damage. Inspect the oil filter and filter sealing gasket, and replace them if necessary. Follow the manufacturer’s recommended interval for changing the hydraulic fluid.

Typically, hydraulic fluid needs to be changed after every 500 hours of use. Changing the hydraulic fluid regularly increases mower performance and lifespan, making it worth the effort and time.

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Testing The Hydraulics

To test the hydraulic fluid in your zero turn mower, operate it for a few minutes to warm up the fluid. Then, check the fluid level using the dipstick. If you notice that the fluid level is low, add more fluid but avoid overfilling it.

Next, inspect the hydraulic system for any leaks or damage. Finally, perform the necessary maintenance tasks, such as replacing the hydraulic filters and cleaning the reservoir. By following these steps, you can ensure that your zero turn mower operates smoothly and efficiently.

Remember to keep an eye on the hydraulic fluid level to avoid any potential issues.


As you can see, changing hydraulic fluid in a zero turn mower is an essential task that you need to know if you want to keep your mower in good shape. By following the steps mentioned above, you can accomplish the task with ease.

Remember to replace the filter, clean the reservoir, and check for leaks before adding the fresh hydraulic fluid. Additionally, make sure to adhere to the manufacturer’s guidelines for the type of hydraulic fluid you use. Regular and proper maintenance of hydraulic fluid will not only save you money but also give you peace of mind.

So, make sure to take care of your equipment, and it will take care of you for years to come. Happy mowing!