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Singer 660A202 User Manual

Singer 660A202
46 pages
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Singer 660A202 Specifications

General IconGeneral
BrandSinger
Model660A202
CategorySewing Machine
LanguageEnglish

Summary

Machine Description

General Characteristics

Overview of the 660A series machines, detailing their high speed and operational design.

Specifications

Detailed technical specifications for 660A1, 660A2, and 660A3 sewing machines.

Installation and Operation

Installation Steps

Instructions for setting up the sewing machine, including table and pulley mounting.

Machine Pulley and Speed

Guidance on pulley installation, correct rotation, and optimal operating speed.

Lubrication Guide

General Lubrication Points

Instructions for oiling various parts of the machine for optimal performance and longevity.

Hook Lubrication Testing

Procedure for testing and ensuring proper lubrication of the sewing hook.

Operation Adjustments

Needles and Presser Foot

Guidance on needle selection, insertion, and adjusting presser foot pressure.

Thread Tension Control

Balancing needle and bobbin thread tension for optimal stitching quality.

Threading and Bobbin Operations

Needle Threading

Step-by-step guide for correctly threading the needle.

Bobbin Handling and Winding

Instructions for inserting, removing, and winding the bobbin.

Sewing and Maintenance

Sewing Procedures

Steps for preparing, starting, and removing work, plus turning corners.

Machine Cleaning

Instructions for removing lint and dust from the machine's parts.

Timing Procedures

Feed and Hook Timing

Adjusting the feed and hook mechanisms for correct synchronization.

Feed Mechanism Timing

Needle Bar Bushing and Feed Adjustment

Setting needle bar bushing height and adjusting feed mechanism eccentrics.

Hook Timing Adjustment

Hook Point Alignment

Ensuring the hook point is centered with the needle at the correct timing stage.

Check Spring and Tension Settings

Check Spring Adjustment

Adjusting the height and tension of the check spring for proper thread control.

Mechanism Settings

Feed Dog Settings

Instructions for centralizing, setting height, and leveling the feed dog.

Hook, Needle Bar, and Presser Bar Settings

Adjusting hook, needle bar, and presser bar for optimal operation.

Stitch Length Setting

Procedure for setting the desired stitch length.

Feed Dog Adjustments

Feed Dog Alignment and Height

Ensuring feed dog centralisation, height, and level for proper fabric feeding.

Hook and Position Finger Adjustments

Needle to Hook Clearance

Ensuring correct clearance between the needle and the rotating hook point.

Position Finger Setting

Adjusting the position finger for proper thread passage.

Needle Bar and Presser Bar Maintenance

Needle Bar Removal and Replacement

Instructions for removing and reinstalling the needle bar.

Presser Bar Removal and Replacement

Steps for removing and reinstalling the presser bar.

Presser Bar and Stitch Length Checks

Presser Bar Clearances

Checking clearances related to the presser foot and bar.

Zero Stitch Length Verification

Verifying correct machine setting for zero stitch length.

Removal and Replacement

Arm Shaft and Feed Shafts

Instructions for removing and replacing arm shaft, connection belt, and feed shafts.

Arm Shaft and Connection Belt

Arm Shaft Replacement

Detailed steps for removing and reinstalling the arm shaft.

Connection Belt Replacement

Instructions for replacing the connection belt for the arm shaft.

Feed Rock Shaft Systems

Feed Lifting and Feed Rock Shafts

Procedures for removing and replacing the feed lifting and feed rock shafts.

Hook Driving Shaft Maintenance

Hook Driving Shaft Removal and Replacement

Steps for removing and reinstalling the hook driving shaft, including timing.

Component Replacement Details

Needle Bar Replacement

Detailed instructions for removing and reinstalling the needle bar.

Presser Bar Replacement

Detailed steps for removing and reinstalling the presser bar.

Thread Take-up Mechanism

Take-up Mechanism Removal and Replacement

Procedure for removing and reinstalling the entire thread take-up mechanism unit.

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