The Brother DDL-8700 industrial sewing machine uses a class 15 bobbin. This is a crucial detail for anyone operating or maintaining this powerful machine. Understanding the specific bobbin type ensures smooth operation and prevents potential issues. Let's dive deeper into why this bobbin type is important and address some common questions.
What Makes a Class 15 Bobbin Different?
The "class 15" designation refers to the bobbin's physical dimensions, including its diameter, height, and overall shape. These precise measurements are critical for proper fit within the DDL-8700's bobbin case. Using an incorrect bobbin size can lead to several problems, including:
- Poor stitch formation: The bobbin might not feed properly, resulting in skipped stitches, inconsistent stitch length, or even broken threads.
- Bobbin case damage: A mismatched bobbin can put undue stress on the bobbin case, potentially leading to breakage or malfunction.
- Needle breakage: Incorrect bobbin tension can transfer stress to the needle, increasing the risk of breakage.
- Machine jams: An improperly sized bobbin can jam the machine, requiring time-consuming troubleshooting and potential repairs.
Therefore, sticking to the recommended Class 15 bobbin is paramount for maintaining optimal sewing performance and extending the lifespan of your DDL-8700.
Where Can I Find Class 15 Bobbins?
Class 15 bobbins are widely available from various sewing machine supply stores, both online and brick-and-mortar. Many retailers specializing in industrial sewing machine parts will stock them. When purchasing, ensure that you specify that they are for a Brother DDL-8700 or a similar machine requiring the Class 15 type.
What are the Different Types of Bobbins?
While the Brother DDL-8700 utilizes Class 15 bobbins, it's important to note that many other bobbin types exist. These vary in size and design, each tailored to specific sewing machine models. Using the wrong type can have the detrimental effects mentioned earlier. Always consult your machine's manual for the correct bobbin specifications.
Are there Compatible Bobbins from Other Brands?
While Brother is the manufacturer, you might find compatible Class 15 bobbins from other reputable brands. Look for bobbins that explicitly state their compatibility with Brother DDL-8700 machines or those specifying "Class 15" dimensions. However, it’s always advisable to test a small batch of any non-Brother bobbins before committing to a large purchase.
How do I know if I have the correct bobbin?
The simplest way is to compare your bobbin to the image in your DDL-8700 manual or consult the manual's specifications. Alternatively, if you have an extra known good bobbin, compare the dimensions. If unsure, contacting your local sewing machine repair shop or a Brother authorized dealer can provide definitive clarification.
This guide should help you confidently identify and procure the correct bobbin type for your Brother DDL-8700. Remember, using the appropriate bobbin is crucial for maintaining optimal performance and avoiding potential machine issues.
