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JUKI DDL-555-4 User Manual

JUKI DDL-555-4
40 pages
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BE5554S0B0A
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MODEL
DDL-555-4
High
Speed,
Single
Needle.
Lockstitch
Industrial
Sewing
Machine
Equipped
with
Automatic
Thread
Trimmer
Instruction
Book
nJ
U
Kl
TOKYO
JUKI
INDUSTRIAL
CO..LTO
From the library of: Superior Sewing Machine & Supply LLC
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JUKI DDL-555-4 Specifications

General IconGeneral
BrandJUKI
ModelDDL-555-4
CategorySewing Machine
LanguageEnglish

Summary

Installation Procedures

Motor Pulley and Belt Setup

Details on selecting and installing the correct motor pulley and belt for optimal speed.

Pedal Installation and Adjustment

Guide to installing and adjusting the sewing machine pedal for proper operation.

Electrical Cord Connections

Instructions for correctly connecting various electrical cords for machine operation.

Operating Voltage Confirmation

Ensuring the machine's operating voltage matches the power supply to prevent damage.

Machine Operation Guide

General Operating Instructions

Basic guidelines and precautions for operating the sewing machine.

Lubrication and Oil Level Management

Procedures for filling and monitoring the oil reservoir for proper machine lubrication.

Pedal Operation and Speed Control

How to use the foot pedal for starting, stopping, and controlling sewing speed.

Thread Tension Adjustment

Steps to adjust needle and bobbin thread tension for optimal stitch formation.

Stitch Length Setting

Instructions for setting the desired stitch length using the stitch dial.

Mechanical Adjustments

Feed Mechanism Timing

Aligning the feed drive eccentric cam for correct feed timing and stitch quality.

Sewing Hook Alignment

Properly positioning the sewing hook relative to the needle for smooth stitching.

Presser Bar Height Correction

Adjusting the height of the presser bar to accommodate different materials.

Needle Stop Position Adjustment

Setting the needle's stop position after thread trimming using synchronizer components.

Wiper Adjustment Procedures

Wiper Position Setting

Adjusting the wiper's vertical and parallel clearance to the needle.

Wiper Magnet Positioning

Setting the wiper magnet for correct operation relative to the needle center.

Switch-Back Button Operation

Forming Switch-Back Stitches

How to use the switch-back button to create reverse stitches.

Adjusting Reverse Stitch Length

Modifying the length of reverse stitches for specific sewing needs.

Automatic Presser Foot Lifter (AK-2)

Operating the AK-2 Lifter

Instructions on how to use the automatic presser foot lifter with the knee switch.

Presser Lifter Stroke Adjustment

Adjusting the travel distance of the automatic presser foot lifter.

Troubleshooting Sewing Issues

Thread Breakage Causes and Solutions

Diagnosing and fixing common causes of thread breakage during sewing.

Stitch Skipping Diagnosis

Identifying and resolving issues that cause skipped stitches.

Puckering Solutions

Methods to prevent or correct puckering in the fabric during stitching.

Irregular Stitches with Speed Changes

Addressing stitch inconsistencies that occur when sewing speed varies.

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