Mustang 2070 Hydraulic Fluid Change: A Step-by-Step Guide

[MikePhua]

The Mustang 2070 is a popular skid steer loader known for its reliability and performance in various construction, landscaping, and farming tasks. Like all heavy equipment, proper maintenance is essential to keep it running smoothly and efficiently. One critical maintenance task that every operator must understand is changing the hydraulic fluid.
The hydraulic system in the Mustang 2070 powers its essential functions, including lifting, tilting, and digging. Over time, the hydraulic fluid can degrade, causing the system to lose efficiency or even fail entirely. Regular fluid changes are essential to maintaining optimal performance and extending the life of the machine. In this article, we will walk you through the process of changing hydraulic fluid in the Mustang 2070, highlight key considerations, and provide tips for ensuring that your skid steer remains in top working condition.
Why Regular Hydraulic Fluid Changes Matter
Hydraulic fluid plays a critical role in the operation of a skid steer like the Mustang 2070. It transmits power to the hydraulic components, lubricates moving parts, and keeps the system cool by transferring heat away from the hydraulic pump and motors. Over time, however, the fluid can break down due to heat, contamination, and wear, leading to a loss in performance and even potential damage to the hydraulic system.
Changing the hydraulic fluid at regular intervals helps to:

• Prevent System Contamination: Hydraulic fluid can pick up dirt, debris, and metal particles over time, leading to contamination. Contaminants can cause damage to the pump, valves, and other hydraulic components.
  
• Maintain System Efficiency: Fresh hydraulic fluid ensures that the system operates at optimal pressure, reducing strain on the hydraulic components.
  
• Extend Equipment Life: Keeping the hydraulic system clean and functioning well can significantly extend the life of the machine and its components, reducing costly repairs and downtime.
  

Steps for Changing the Hydraulic Fluid in the Mustang 2070

1. Prepare for the Fluid Change
   Before you begin, make sure you have all the necessary tools and equipment:
   • New hydraulic fluid (check the owner’s manual for the correct type and amount)
     
   • Drain pan or container for old fluid
     
   • Wrenches or socket set
     
   • Rags or towels
     
   • Funnel for pouring new fluid
     
   It’s also important to ensure that the machine is on a level surface and that the engine is turned off, and the key is removed. To ensure safety, wear gloves and safety glasses, as hydraulic fluid can be harmful if it comes into contact with the skin or eyes.
   
2. Locate the Hydraulic Fluid Reservoir
   The hydraulic fluid reservoir on the Mustang 2070 is typically located near the rear of the machine. It may be covered by a panel or lid, which you will need to remove. Once the reservoir is exposed, check for any obvious signs of damage or leaks before proceeding.
   
3. Drain the Old Hydraulic Fluid
   To drain the hydraulic fluid, locate the drain plug at the bottom of the reservoir. Use a wrench or socket set to loosen the drain plug. Place the drain pan underneath to catch the fluid as it flows out. Allow the fluid to drain completely. This may take several minutes, as hydraulic systems can hold a considerable amount of fluid.
   While the fluid is draining, take the time to inspect the drain plug and replace it if it shows signs of wear or damage. This is also a good time to check the hydraulic lines and components for leaks or signs of wear.
   
4. Replace the Hydraulic Filter
   After the old fluid has been drained, it’s a good idea to replace the hydraulic filter. The filter helps to remove impurities from the hydraulic fluid and should be replaced regularly to prevent contamination. Consult the owner’s manual to locate the filter and use an appropriate tool to remove it. Once the old filter is removed, install the new one, ensuring that it is tightly secured.
   
5. Refill the Hydraulic Reservoir
   Once the old fluid has drained and the filter has been replaced, it’s time to refill the hydraulic reservoir with fresh fluid. Use a funnel to pour the new hydraulic fluid into the reservoir slowly. Be sure to follow the manufacturer’s recommendations for fluid type and amount. Overfilling or underfilling the reservoir can lead to problems, so it’s important to check the fluid level as you go.
   After the fluid is added, check the dipstick or sight glass (depending on your machine’s configuration) to ensure that the fluid level is correct.
   
6. Check for Leaks and Test the System
   After refilling, start the engine and operate the hydraulic system for a few minutes to allow the new fluid to circulate through the system. Check for any leaks around the hydraulic lines, fittings, and the reservoir. If you notice any leaks, tighten the connections or replace damaged components.
   Once you are confident that there are no leaks, test the loader arms, bucket, and other hydraulic functions to ensure they are operating smoothly. If you notice any abnormal behavior, such as sluggish movement or noise, you may need to check the fluid level again or inspect the system for further issues.
   
7. Dispose of Old Hydraulic Fluid Properly
   Used hydraulic fluid should never be disposed of improperly, as it can be harmful to the environment. Take the old fluid to a certified disposal facility or recycling center to ensure it is handled safely and responsibly.
   

Common Problems and Troubleshooting Tips

1. Sluggish or Unresponsive Hydraulic Functions
   If the hydraulic functions of the Mustang 2070 are sluggish or unresponsive after a fluid change, it could indicate that air has entered the hydraulic system during the fluid change. Try cycling the hydraulic controls several times to bleed the air out of the system. If the problem persists, check the hydraulic fluid level and top it off if necessary.
   
2. Hydraulic Leaks
   If you notice hydraulic fluid leaking from the machine after changing the fluid, inspect all hydraulic lines, fittings, and seals for signs of damage. Over time, seals can wear out and cause leaks, and loose fittings can lead to fluid loss. Tighten any loose connections or replace damaged seals as needed.
   
3. Dirty Fluid After Change
   If the hydraulic fluid becomes dirty or contaminated quickly after a change, it may indicate that there is an issue with the filter or that the hydraulic system is picking up contaminants. Make sure the filter was replaced properly and that the system is free from debris before refilling the fluid.
   

Real-World Example: Preventing Future Hydraulic System Failures
A contractor who regularly used their Mustang 2070 for excavation work shared their experience of dealing with a hydraulic system failure after not changing the fluid for over a year. The machine began to lose hydraulic power, and eventually, the pump failed, resulting in expensive repairs. After that, they made sure to follow a strict maintenance schedule, changing the hydraulic fluid and filter every 200 hours of operation. Since then, they've had fewer issues with the system, and the Mustang 2070 continues to run smoothly.
Conclusion: Maintaining the Mustang 2070 Hydraulic System
Changing the hydraulic fluid in your Mustang 2070 is a straightforward task that, when done regularly, can significantly extend the life of the machine and maintain its performance. By following the steps outlined above, you can ensure that your skid steer operates at its best, reducing the risk of costly repairs and downtime. Always use the correct type of fluid, keep an eye on fluid levels, and replace filters as part of your regular maintenance schedule to avoid problems down the road.
With proper care, your Mustang 2070 will continue to serve you well for years to come, helping you get the job done efficiently and reliably.