Blooy Feed Dog Set Instruction Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of the Blooy Feed Dog Set, specifically designed for the JUKI MO-2516 Five Thread Overlock Sewing Machine. This set includes two essential components: Part Code 118-85407 and Part Code 118-83006. Proper installation and care will ensure optimal performance and longevity of your sewing machine's feeding mechanism.

2. Safety Instructions

• Always disconnect the sewing machine from the power supply before installing, removing, or performing any maintenance on parts.
• Use appropriate tools for installation to prevent damage to the feed dog set or the sewing machine.
• Keep small parts away from children.
• Handle the feed dog components carefully to avoid injury from sharp edges or points.
• Ensure all screws are securely tightened after installation to prevent parts from loosening during operation.

3. Package Contents

Verify that all components are present and undamaged upon opening the package.

• 1 x Feed Dog (Part Code: 118-85407)
• 1 x Feed Dog (Part Code: 118-83006)

Figure 3.1: The Blooy Feed Dog Set, showing both components (118-85407 and 118-83006) from an overhead perspective. The part numbers are clearly visible on each component.

4. Setup and Installation

This feed dog set is compatible with the JUKI MO-2516 Five Thread Overlock Sewing Machine and specifically designed to work with Throat Plate R4612-HOF-GOO.

4.1 Pre-Installation Checklist

• Ensure the sewing machine is turned off and unplugged from the power source.
• Clear the work area around the needle plate and feed dog mechanism.
• Gather necessary tools, typically a screwdriver suitable for small machine screws.

4.2 Installation Steps

1. Remove Existing Feed Dog: Carefully unscrew and remove the existing feed dog components from your JUKI MO-2516 machine. Note the orientation of the old parts for reference.
2. Identify New Components: The set includes two parts. Part 118-85407 is typically the main feed dog, and 118-83006 is the auxiliary or differential feed dog. Refer to the images for visual identification.


Figure 4.1: Angled view of the Blooy Feed Dog Set, highlighting the distinct shapes and part numbers (118-85407 on the left, 118-83006 on the right) for proper identification during installation.

3. Install Feed Dog 118-85407: Position the 118-85407 feed dog onto its designated mounting points on the machine bed. Align the screw holes.
4. Install Feed Dog 118-83006: Place the 118-83006 feed dog next to the first component, ensuring correct alignment with its mounting points and the throat plate.


Figure 4.2: Side profile view of the Blooy Feed Dog Set, showing the intricate teeth and the overall structure of both components (118-85407 on the left, 118-83006 on the right). This view is helpful for understanding how the teeth engage with fabric.

5. Secure with Screws: Insert and gently tighten the screws to hold both feed dogs in place. Do not overtighten initially.
6. Check Alignment: Ensure both feed dogs are level and their teeth protrude correctly through the throat plate slots without obstruction. Adjust as necessary.
7. Final Tightening: Once alignment is confirmed, securely tighten all screws.
8. Test Manually: Manually turn the machine's handwheel to observe the feed dog movement. Ensure smooth operation and proper fabric feeding action.

5. Operating with the New Feed Dog Set

After successful installation, the Blooy Feed Dog Set will restore or improve the fabric feeding mechanism of your JUKI MO-2516 overlock machine. The feed dogs work in conjunction with the presser foot to move fabric evenly under the needle.

• Fabric Engagement: The teeth of the feed dogs grip the fabric from underneath, moving it forward as the needle forms stitches.
• Differential Feed: The JUKI MO-2516 features differential feed, which is controlled by the two feed dog components. Adjust the differential feed settings on your machine according to the fabric type and desired stitch effect (e.g., gathering or stretching).
• Smooth Feeding: Properly installed feed dogs ensure consistent fabric movement, preventing skipped stitches, puckering, or stretching.

6. Maintenance

Regular maintenance of your feed dog set will prolong its life and ensure consistent sewing performance.

• Cleaning: Periodically remove the throat plate and use a small brush or vacuum cleaner to remove lint, dust, and fabric fibers accumulated around and under the feed dogs. Accumulation can hinder movement and affect feeding.
• Inspection: Regularly inspect the teeth of the feed dogs for any signs of wear, damage, or bending. Worn or damaged teeth can lead to uneven feeding or fabric damage.
• Lubrication: Consult your JUKI MO-2516 machine's main instruction manual for specific lubrication points and schedules related to the feed dog mechanism.
• Replacement: If the feed dogs show significant wear or damage, replace them with a new Blooy Feed Dog Set to maintain optimal machine performance.

7. Troubleshooting

If you encounter issues with fabric feeding after installing the new feed dog set, consider the following:

8. Specifications

• Brand: Blooy
• Part Codes: 118-85407 & 118-83006
• Compatibility: JUKI MO-2516 Five Thread Overlock Sewing Machine
• Compatible Throat Plate: R4612-HOF-GOO
• Gauge Size: 4.8x4.8mm (as per product description)
• Material: Industrial-grade metal
• Dimensions (Approximate): 6"D x 4"W x 2"H (for the set, as per product dimensions)

9. Warranty and Support

For specific warranty information regarding your Blooy Feed Dog Set, please refer to the retailer or original purchase documentation. For technical support or further assistance with installation and troubleshooting, please contact your sewing machine technician or the Blooy customer service department.

Always ensure you are using genuine Blooy replacement parts to maintain the performance and warranty of your product.