Needle Plate Locating Plunger 82171 - Release Pin for Singer 29K Cobbler Machines
Needle Plate Locating Plunger 82171 - Release Pin for Singer 29K Cobbler Machines is backordered and will ship as soon as it is back in stock.
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- Canada: 7–14 business days, up to 30 days for remote areas.
- Australia: 7–14 business days, up to 30 days for remote areas.
- New Zealand: 7–14 business days, up to 30 days for remote areas.
Delivery may vary due to customs, weather, or carrier delays, especially for APO/FPO addresses.
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- Custom Fees: May apply and are the buyer's responsibility.
Australia Shipping
- Shipping: Weight-based carrier-calculated rates
- Shipping Service: USPS International and UPS
- Shipping Timeline: Orders are shipped within 1–2 business days and generally received within 7–14 business days but may take up to 30 days for remote areas.
- Currency: Prices displayed in USD
- Custom Fees: May apply and are the buyer's responsibility.
New Zealand Shipping
- Shipping: Weight-based carrier-calculated rates
- Shipping Service: USPS International and UPS
- Shipping Timeline: Orders are shipped within 1–2 business days and generally received within 7–14 business days but may take up to 30 days for remote areas.
- Currency: Prices displayed in USD
- Custom Fees: May apply and are the buyer's responsibility.
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Description
Description
Needle Plate Locating Plunger 82171 - Alignment Pin
Part Number: 82171
Type: Needle plate locating plunger / release pin
Related Parts: Works with Needle Plate Locating Plunger Spring #82172 and Releasing Lever #82173
Function and Purpose:
The Locating Plunger is a specialized alignment pin used in the needle plate and pinion assembly of vintage industrial shoe patcher machines. It is designed to lock or release the needle plate in a specific position to facilitate maintenance and directional sewing operations on leather goods and footwear.
Key Functions:
Needle Plate Alignment: Ensures the needle plate is perfectly centered over the pinion and shuttle mechanism, which is critical for accurate 360-degree directional stitching on boots, bags, and leather repairs.
Release Mechanism: Functions as a release pin, allowing the operator to quickly disengage or reposition components during leather repair tasks and maintenance procedures without disassembling the entire needle plate assembly.
Mechanical Stability: Prevents the plate from shifting under the high pressure of industrial leather sewing, maintaining consistent stitch quality and preventing needle strikes or timing issues during heavy-duty operations.
When to Replace:
Replace this plunger if the needle plate becomes loose, shifts during sewing, or if the release mechanism fails to hold the plate securely. A worn plunger can cause alignment issues and inconsistent stitch formation on leather work.
Compatible Singer Models:
Singer 29K Class: 29K71, 29K73
Singer 29U Series: 29U171A, 29U172A, 29U173A
Generic Compatibility: Fits most patcher and cobbler machines that follow the original Singer 29K design
Professional Tip: For complete repair, pair this plunger with the Needle Plate Locating Plunger Spring (Part #82172), which provides the tension required for the plunger to stay properly seated. Regular inspection of this assembly ensures reliable needle plate positioning for professional leather work.
Specifications
Specifications
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