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JUKI LH-3128 User Manual

JUKI LH-3128
10 pages
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JUKI LH-3128 Specifications

General IconGeneral
Number of Needles2
Max Stitch Length5 mm
LubricationAutomatic
TypeLockstitch
Lift of the presser foot13 mm
NeedleDP×5
BobbinRotating hook, horizontal full-rotary hook

Summary

IMPORTANT SAFETY INSTRUCTIONS

TROUBLES AND CORRECTIVE MEASURES

Thread breakage

Troubleshooting thread breakage with causes and corrective actions for sewing machines.

Stitch skipping

Diagnosing and fixing stitch skipping issues in sewing machines, detailing causes and solutions.

Loose stitch

Addressing loose stitches in sewing machines by identifying causes and applying corrective measures.

Thread escapes from the needle eye after thread trimming action

Resolving thread escape from the needle eye after thread trimming in sewing machines.

Thread escapes from the needle eye at the start of stitching

Troubleshooting thread escaping the needle eye at the start of stitching.

Thread is not cut sharply

Corrective measures for threads that are not cut sharply by the sewing machine.

Thread is not cut at all

Solutions for the sewing machine failing to cut the thread at all.

MOTOR PULLEY AND BELT

FOR SAFE OPERATION

GAUGE SETS

REVERSE FEED SWITCH LEVER

SPECIFICATIONS

PEDAL PRESSURE AND STROKE

INSTALLATION OF THREAD STAND

LUBRICATION

INITIAL POSITION OF THE MOVING KNIFE

POSITION OF THE WIPER

REPLACING THE GAUGE

ADJUSTING THE PRESSURE OF THE THREAD PRESSER SPRING

INSTALLING THE BELT COVER AND BOBBIN WINDER

ATTACHING THE NEEDLES

SETTING THE BOBBIN

NEEDLE-TO-HOOK RELATION

HOOK NEEDLE GUARD

THREAD TENSION

THREADING THE MACHINE HEAD

BOBBIN CASE OPENING LEVER

ADJUSTING THE STITCH LENGTH

HOW TO OPERATE THE PEDAL

CONNECTION OF THE PEDAL

THREAD TAKE-UP SPRING

HAND LIFTER

ADJUSTMENT OF THE PRESSURE OF THE PRESSER FOOT

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