How to replace the brushes in the Kubota D1105 starter? - Blog

As a trusted supplier of Kubota D1105 starters, I've encountered numerous customers seeking guidance on maintaining and servicing their equipment. One common maintenance task that often arises is the replacement of brushes in the Kubota D1105 starter. In this blog post, I'll walk you through the step-by-step process of replacing the brushes, providing you with the knowledge and confidence to tackle this task yourself.

Why Replace the Brushes?

Before we dive into the replacement process, let's understand why replacing the brushes is essential. The brushes in a starter motor play a crucial role in conducting electricity between the stationary and rotating parts of the motor. Over time, these brushes wear down due to friction and electrical arcing, which can lead to reduced performance, starting issues, and even motor failure. By replacing the brushes at regular intervals, you can ensure the optimal performance and longevity of your Kubota D1105 starter.

Tools and Materials Needed

Before you begin the replacement process, gather the following tools and materials:

17028r STN2866ML

Socket set
Screwdriver set
New brushes (compatible with Kubota D1105 starter)
Safety glasses
Gloves

Step-by-Step Guide to Replacing the Brushes

Step 1: Safety First

Before working on any electrical component, it's crucial to disconnect the battery to prevent any electrical shock or damage. Locate the battery in your Kubota equipment and use a socket wrench to remove the negative (-) terminal cable. This will ensure that the starter motor is completely de-energized during the replacement process.

Step 2: Locate the Starter Motor

The Kubota D1105 starter motor is typically located on the side of the engine block. Refer to your equipment's service manual for the exact location of the starter motor. Once you've located the starter motor, visually inspect it to identify the brush holder assembly.

Step 3: Remove the Starter Motor

To access the brush holder assembly, you'll need to remove the starter motor from the engine block. Use a socket set to remove the bolts securing the starter motor to the engine block. Carefully disconnect the electrical connections from the starter motor, including the positive (+) cable and any control wires. Once all the bolts and connections are removed, gently pull the starter motor away from the engine block.

Step 4: Access the Brush Holder Assembly

Once the starter motor is removed, locate the brush holder assembly. The brush holder assembly is usually located on the end of the starter motor opposite the drive end. Use a screwdriver to remove the screws or bolts securing the brush holder assembly to the starter motor housing. Carefully lift the brush holder assembly away from the starter motor housing.

Step 5: Remove the Old Brushes

Inside the brush holder assembly, you'll find the old brushes. The brushes are typically held in place by springs or clips. Use a small screwdriver or pliers to carefully remove the springs or clips holding the brushes in place. Once the springs or clips are removed, gently pull the old brushes out of the brush holder assembly.

Step 6: Install the New Brushes

Take the new brushes and insert them into the brush holder assembly. Make sure the brushes are properly seated and aligned with the brush holders. Reinstall the springs or clips to secure the new brushes in place. Ensure that the brushes are free to move up and down within the brush holders.

Step 7: Reassemble the Brush Holder Assembly

Once the new brushes are installed, carefully place the brush holder assembly back onto the starter motor housing. Align the holes in the brush holder assembly with the holes in the starter motor housing and use a screwdriver to reinstall the screws or bolts securing the brush holder assembly in place.

Step 8: Reinstall the Starter Motor

With the brush holder assembly reassembled, it's time to reinstall the starter motor onto the engine block. Carefully align the starter motor with the mounting holes on the engine block and insert the bolts. Use a socket set to tighten the bolts securely. Reconnect the electrical connections to the starter motor, including the positive (+) cable and any control wires.

Step 9: Reconnect the Battery

Once the starter motor is reinstalled and all the electrical connections are reconnected, it's time to reconnect the battery. Use a socket wrench to reinstall the negative (-) terminal cable onto the battery. Make sure the cable is securely tightened to prevent any electrical arcing.

Step 10: Test the Starter Motor

With the battery reconnected, turn the ignition key to the "Start" position to test the starter motor. If the starter motor engages smoothly and the engine starts without any issues, then the brush replacement was successful. If you encounter any problems, double-check all the connections and ensure that the brushes are properly installed.

Compatible Starter Models and Reference Numbers

As a Kubota D1105 starter supplier, we offer a wide range of compatible starter models and reference numbers. Here are some of the popular models and reference numbers that you may find useful:

Conclusion

Replacing the brushes in the Kubota D1105 starter is a relatively straightforward maintenance task that can be completed with basic tools and some mechanical knowledge. By following the step-by-step guide outlined in this blog post, you can ensure the optimal performance and longevity of your starter motor. If you have any questions or need further assistance, please don't hesitate to contact us. We're here to help you keep your Kubota equipment running smoothly.

If you're in need of high-quality Kubota D1105 starters or replacement parts, we invite you to reach out to us for a quote. Our team of experts is ready to assist you with your procurement needs and provide you with the best solutions for your equipment. Contact us today to start the purchasing process and experience the difference of working with a reliable supplier.

References

Kubota D1105 Service Manual
Starter Motor Repair Guides