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Singer 831U User Manual

Singer 831U
24 pages
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Singer 831U Specifications

General IconGeneral
BrandSinger
Model831U
CategorySewing Machine
LanguageEnglish

Summary

Features

Specifications

A. Installation

Machine Head Installation

Procedures for mounting the sewing machine head onto the table base.

Sewing Speed

Guidance on setting and operating the machine at optimal sewing speeds.

Motor Pulley and Belt

Instructions for selecting and installing motor pulleys and V-belts.

Belt and Belt Cover Installation

Steps for fitting the drive belt and its protective cover.

Thread Unwinder Installation

How to install the thread unwinder accessory for efficient operation.

Eye Guard Installation

Guide for fitting the eye guard onto the face plate for safety.

B. Lubrication

Type of Oil

Specifies the recommended type of oil for machine lubrication.

Lubrication and Oil Change

Details on oiling procedures, levels, and scheduled oil changes.

Needle Cooler

Instructions for using the needle cooler with specific fabrics and threads.

C. Operation

Needle and Thread

Guidance on selecting appropriate needles and threads for various fabrics.

Setting Needle

Step-by-step instructions for correctly inserting and securing the needle.

Threading

Detailed process for threading the machine's various thread paths.

Thread Tension

How to adjust needle and looper thread tension for optimal stitch quality.

How to Sew

Basic steps for operating the sewing machine and starting sewing.

Bight Adjustment

Procedures for adjusting the stitch width (bight) and trimming.

Stitch Length Adjustment

Instructions for setting and adjusting the stitch length.

Differential Feed Adjustment

How to adjust differential feed for stretch, normal, or gather effects.

D. Standard Adjustments

Left Hand Looper and Needle Bar Adjustment

Adjusting the left hand looper and needle bar positions for proper stitch formation.

Right Hand Looper Adjustment

Procedures for adjusting the right hand looper to meet the left looper.

Knives Adjustment

How to adjust the cutting knives for proper trimming performance.

Feed Dogs Adjustment

Steps for adjusting the height of the feed dogs.

Differential Feed Ratio Adjustment

Adjusting the ratio of differential feed for various fabric types.

E. Installation and Adjustment of Attachments

Blind Hemming Guide

Installing and adjusting the blind hemming guide attachment.

Serging

Instructions for installing and using the serging attachment.

Turn-Down Hemming

How to install and adjust for turn-down hemming operations.

Taping

Guide for installing and using the tape guide attachment.

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