JUKI Foot Lifting Lever Assembly 131-15753 Instruction Manual

1. Introduction

1.1 Product Overview

This document provides instructions for the installation, operation, and maintenance of the JUKI Foot Lifting Lever Assembly, part number 131-15753. This genuine JUKI part is designed to replace or upgrade the presser foot lifting mechanism on compatible JUKI overlock sewing machines, ensuring smooth and reliable operation.

1.2 Package Contents

• 1 x JUKI Foot Lifting Lever Assembly (Part # 131-15753)

1.3 Compatibility

This Foot Lifting Lever Assembly is compatible with the following JUKI overlock machine models:

• MO-3604, MO-3616
• MO-3704, MO-3714, MO-3716
• MO-3904, MO-3914, MO-3916
• MO-6100D, MO-6700D, MO-6700S
• MO-6904, MO-6914, MO-6916
• MOC-3904, MOCS-3914, MOG-3700 series

2. Safety Information

Always prioritize safety when working with sewing machines and their components. Failure to follow safety guidelines may result in injury or damage to the machine.

• Disconnect Power: Always unplug the sewing machine from the power outlet before performing any installation, maintenance, or cleaning.
• Use Correct Tools: Ensure you have the appropriate tools for installation to prevent damage to the part or machine.
• Handle with Care: Components may have sharp edges. Handle the lever assembly and surrounding machine parts carefully.
• Consult Professional: If you are unsure about any step of the installation process, consult a qualified sewing machine technician.

3. Setup and Installation

This section outlines the general procedure for installing the JUKI Foot Lifting Lever Assembly. Specific steps may vary slightly depending on your exact machine model. Refer to your machine's primary service manual for detailed diagrams and instructions if needed.

Figure 1: JUKI Foot Lifting Lever Assembly (Part # 131-15753). This image shows the complete lever assembly, ready for installation.

1. Prepare the Machine:
   • Ensure the sewing machine is turned off and unplugged from the power source.
   • Clear the work area around the presser foot and needle bar.
2. Access the Existing Lever (if replacing):
   • Carefully locate the existing foot lifting lever mechanism on your JUKI overlock machine. This is typically found near the presser foot bar.
   • Identify any screws, pins, or clips securing the old lever assembly.
   • Using appropriate tools (e.g., screwdriver, pliers), carefully remove the fasteners and detach the old lever assembly. Keep track of all removed components.
3. Install the New Lever Assembly:
   • Position the new JUKI Foot Lifting Lever Assembly (Part # 131-15753) into the designated mounting location.
   • Align the mounting holes on the new assembly with the corresponding holes on the machine frame.
   • Secure the assembly using the original screws, pins, or clips. Ensure all fasteners are tightened securely but do not overtighten.
   • Verify that the lever moves freely and smoothly without obstruction.
4. Test Functionality:
   • Once installed, plug the machine back in and turn on the power.
   • Operate the foot lifting lever manually to ensure the presser foot raises and lowers correctly and without binding.
   • If the movement is stiff or incorrect, re-check the installation for proper alignment and secure fastening.

Figure 2: Exploded view of the JUKI Foot Lifting Lever Assembly. This diagram illustrates the individual components that make up the assembly, which can be helpful for understanding its construction and installation.

4. Operation

The foot lifting lever is an essential component for controlling the presser foot position during sewing operations. Once installed, its function is straightforward:

• Raising the Presser Foot: Push the lever upwards to lift the presser foot. This allows for placing fabric under the foot, adjusting fabric position, or removing finished work.
• Lowering the Presser Foot: Push the lever downwards to lower the presser foot onto the fabric. The presser foot must be in the down position for proper stitching.

Ensure the lever operates smoothly and the presser foot responds immediately to its movement. Any stiffness or delayed response may indicate an issue with installation or lubrication.

5. Maintenance

Regular maintenance helps ensure the longevity and smooth operation of your foot lifting lever assembly.

• Cleaning: Periodically clean any lint, dust, or thread accumulation around the lever mechanism. Use a small brush or compressed air.
• Lubrication: Consult your JUKI overlock machine's main service manual for specific lubrication points and recommended lubricants. Generally, a small amount of sewing machine oil applied to pivot points can ensure smooth movement. Avoid over-lubrication.
• Inspection: Regularly inspect the lever for any signs of wear, bending, or damage. Ensure all fasteners remain tight.

6. Troubleshooting

If you encounter issues with your foot lifting lever, consider the following:

• Lever is Stiff or Hard to Move:
  • Check for lint or debris obstructing the mechanism.
  • Ensure the lever is not bent or misaligned.
  • Apply a small amount of sewing machine oil to pivot points as per your machine's manual.
• Presser Foot Does Not Lift/Lower Properly:
  • Verify that the lever assembly is securely installed and all fasteners are tight.
  • Inspect for any bent or broken components within the lever mechanism or the presser foot bar linkage.
  • Ensure no fabric or thread is jammed under the presser foot or around its lifting mechanism.

If problems persist, it is recommended to consult a professional sewing machine technician.

7. Specifications

8. Warranty and Support

This JUKI Foot Lifting Lever Assembly is a genuine JUKI part. For specific warranty information, please refer to the warranty documentation provided with your original JUKI sewing machine or contact JUKI customer support directly.

For technical assistance, replacement parts, or further inquiries, please contact your authorized JUKI dealer or the seller from whom you purchased this part.

• Manufacturer: JUKI
• Seller: Cutex Sewing Supplies (as per product listing)