Contents
  • 1. Why Change the Engine Air Filter Regularly?
  • 2. What Tools and Materials Do You Need?
  • 3. Step-by-Step Guide to Changing the Air Filter
  • Conclusion
Contents
  • 1. Why Change the Engine Air Filter Regularly?
  • 2. What Tools and Materials Do You Need?
  • 3. Step-by-Step Guide to Changing the Air Filter
  • Conclusion

How to Change the Engine Air Filter on Mini Excavator

A clogged air filter can lead to reduced engine power, harder starts, and increased fuel consumption. This guide will walk you through the process step-by-step, covering the tools needed, maintenance schedules, and benefits of regular air filter changes. Proper care can extend the life of your mini excavator and keep it running smoothly, especially in dusty environments.

(Reading Time: 5-8 Minutes)

 

1. Why Change the Engine Air Filter Regularly?

The air filter plays a crucial role in keeping your mini excavator’s engine clean and functioning properly. If the air filter is clogged with dust and debris, it can cause several issues:

  • Reduced Engine Power: A dirty air filter restricts airflow, which affects engine performance.
  • Hard Starts: If the engine isn't getting enough clean air, it can make starting more difficult.
  • Increased Fuel Consumption: A clogged filter forces the engine to work harder, consuming more fuel.
  • Potential Engine Damage: Over time, dirt and debris can enter the engine, causing wear and tear.

To prevent these issues, it’s essential to clean your air filter every 100 hours of operation and replace it every 400 hours, or more frequently in dusty conditions.

Change the Engine Air Filter on Mini Excavator

2. What Tools and Materials Do You Need?

Before getting started, make sure you have the following:

  • A New Air Filter: You can contact AHM customer service to purchase from us separately.
  • Basic Tools: No special tools are needed for this job; you may only need your hands to turn or push locks, depending on your mini excavator model.

3. Step-by-Step Guide to Changing the Air Filter

Step 1: Prepare Your Excavator

  • Park your mini excavator on a flat, stable surface.
  • Turn off the engine and remove the key. Wait for the engine to cool down to avoid any risk of burns or injuries.

Step 2: Locate the Air Filter

Lift your seat to access the engine compartment. The location of the air filter will differ based on your engine model:

The location of the air filter will differ based on your engine mode

Please refer to the list to match your AHM excavator model with the corresponding engine model:

HT-12/AX-12 13.5 HP B&S Engine Mini Excavator

Briggs & Stratton 25T2 Engine

AX-12B 13.5 HP B&S Engine Mini Excavator

Briggs & Stratton 25T2 Engine

NW-12 13.5 HP B&S Engine Mini Excavator

Briggs & Stratton 25T2 Engine

HT-12C/AX-12C 13.5 HP B&S Engine Mini Excavator with Enclosed Cab

Briggs & Stratton 25T2 Engine

HT-15/AX-15 13.8 HP Kubota Engine Mini Excavator

Kubota D722 Engine

HT-16/AX-16 23 HP B&S Engine Mini Excavator

Briggs & Stratton Vanguard 3864 Engine

 

Step 3: Remove the Old Air Filter

  • For Briggs & Stratton 25T2 Engine: Turn the lid counterclockwise by hand to remove it.
  • For Kubota D722 Engine& Briggs & Stratton Vanguard 3864 Engine: Push the lock to release the lid. Remove the old air filter by carefully pulling it out.
Push the lock to release the lid. Remove the old air filter by carefully pulling it out.

Step 4: Install the New Air Filter

Take your new air filter and insert it into the compartment where the old filter was. Ensure the filter is seated properly.

Close the lid in the reverse manner:

  • For Briggs & Stratton 25T2 Engine: Turn the lid clockwise to secure it.
  • For Kubota D722 Engine& Briggs & Stratton Vanguard 3864 Engine: Push the lock back into place.

Step 5: Test the Excavator

Start the engine and let it idle for a few minutes. Check to ensure that the engine runs smoothly and there are no unusual sounds or smoke. If everything sounds good, you're all set!

 

Conclusion

To keep your micro excavator running efficiently, change the air filter every 400 hours or sooner in dusty conditions. This easy maintenance task prevents engine problems, reduces fuel costs, and prolongs the life of your machine. Always use the correct replacement parts and follow the manufacturers instructions for the best results. At AHM, we offer high-quality mini excavators and top-notch support for all your equipment needs. Please feel free to contact us by email or phone if you have any questions

David Johnson
I'm David Johnson, an engineer with experience in mechanical engineering. I specialize in construction machinery and have worked with heavy machinery like mini excavators for a long time. My aim is to simplify difficult technical ideas so that everyone can grasp them. Whether you work in construction or just want to learn more, I'm here to help make things clear.
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