How to Lubricate the Motor on a DELLA Inverter: A Comprehensive Guide


Maintaining the motor on a DELLA inverter is crucial for its optimal performance and longevity. This comprehensive guide will walk you through the step-by-step process of lubricating the motor, ensuring your inverter continues to operate efficiently. From identifying the motor type to applying the right lubricant, this article covers all the essential details you need to know to keep your DELLA inverter running smoothly.

Identifying the Motor Type

how to lubricate motor on DELLA inverter

Before you can begin the lubrication process, it’s essential to determine the type of motor used in your DELLA inverter. DELLA inverters typically employ either brushed or brushless DC motors. Brushed motors have commutators and brushes, while brushless motors do not. Knowing the motor type is crucial, as it will dictate the appropriate lubricant and lubrication technique.

To identify the motor type, you can refer to the manufacturer’s documentation or visually inspect the motor. Brushed motors will have visible brushes and a commutator, while brushless motors will not. If you’re unsure, it’s best to consult the DELLA inverter’s user manual or contact the manufacturer for guidance.

Gathering the Necessary Tools and Lubricant

To lubricate the motor on your DELLA inverter, you’ll need the following tools and materials:

  1. Grease Gun: A high-quality grease gun is essential for applying the lubricant to the motor’s bearings. Make sure the grease gun is compatible with the type of lubricant you’ll be using.
  2. Clean Cloth: A clean, lint-free cloth is necessary for wiping away any excess lubricant and cleaning the motor before and after the lubrication process.
  3. Electric Motor Grease: Choose a high-quality electric motor grease that is compatible with the type of motor in your DELLA inverter. Consult the manufacturer’s recommendations or refer to the motor’s specifications to ensure you select the appropriate lubricant.

When selecting the grease, consider factors such as the motor’s operating temperature, speed, and load. Choosing the wrong lubricant can lead to premature wear or even damage to the motor.

Locating the Motor

The motor in a DELLA inverter is typically located within the fan housing. To access the motor, you may need to remove the fan blades or the fan cover. Consult the DELLA inverter’s user manual or manufacturer’s instructions for specific guidance on how to access the motor.

Once you’ve located the motor, take note of its position and orientation within the inverter. This will help you ensure the motor is properly reassembled after the lubrication process.

Cleaning the Motor

Before applying the lubricant, it’s crucial to clean the motor and the surrounding area thoroughly. Use a clean cloth to wipe away any dirt, debris, or old lubricant that may have accumulated on the motor and its components.

Proper cleaning ensures that the new lubricant is applied to a clean surface, preventing the introduction of contaminants that could potentially damage the motor. Take care to avoid getting any cleaning materials or debris inside the motor itself.

Applying the Lubricant

With the motor identified, the necessary tools and lubricant gathered, and the motor cleaned, you’re now ready to apply the lubricant. Follow these steps carefully:

  1. Locate the Grease Fitting: Identify the grease fitting or zerk fitting on the motor. This is the point where you’ll insert the grease gun nozzle to apply the lubricant.
  2. Insert the Grease Gun Nozzle: Carefully insert the nozzle of the grease gun into the grease fitting. Make sure the connection is secure to prevent any leaks or spillage.
  3. Pump the Grease Gun: Slowly and steadily pump the grease gun, applying the lubricant to the motor’s bearings. Continue pumping until you see a small amount of grease emerging from the seals around the motor shaft.
  4. Monitor the Grease Flow: Keep a close eye on the grease flow and stop pumping as soon as you see the grease starting to come out. Overfilling the motor can lead to leaks and potential damage.
  5. Wipe Away Excess Grease: Use the clean cloth to wipe away any excess grease that may have been pushed out of the seals. This will help prevent dirt and debris from accumulating on the motor.

It’s important to follow the manufacturer’s recommended lubrication intervals and grease quantities to ensure the proper maintenance of your DELLA inverter’s motor.

Reassembling the Inverter

Once you’ve completed the lubrication process, carefully reassemble the fan housing and any other components you may have removed to access the motor. Ensure that all parts are properly aligned and secured in their original positions.

After reassembly, power on the DELLA inverter and observe its operation. Listen for any unusual noises or vibrations, which could indicate an issue with the motor or the lubrication process. If everything appears to be functioning normally, your inverter is now ready to continue providing reliable performance.


Maintaining the motor on your DELLA inverter is a crucial aspect of ensuring its long-term reliability and efficiency. By following the step-by-step guide outlined in this article, you can effectively lubricate the motor and keep your inverter running smoothly. Remember to always refer to the manufacturer’s instructions and use the appropriate tools and lubricants to avoid any potential issues. With proper maintenance, your DELLA inverter will continue to provide reliable power for your home or business.


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