JUKI MO-644DN - Table of Contents; Contents

Safety instructions ·····································1-3
Contents···················································· 4
Details of the machine ································ 5,6
• Accessories ············································· 6
Assembling thread stand ····························7
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Preparing the machine ································· 9
• Attaching the foot controller ························ 9
• On/O󰀨 of the power/light switch ··················· 9
Operation and function
• Handwheel (Pulley) ·································· 10
• Opening and closing the looper cover ··········10
• Opening and closing the cloth plate ·············10
• Presser foot lifter ····································· 11
• Changing the presser foot ························· 11
• Raising the upper knife ·····························12
• Lower knife adjusting knob ························12
• Stitch length adjusting knob ·······················13
• Di󰀨erential feed adjusting knob ···················13
• Overlocking width selection knob ················14
• Presser foot pressure adjusting screw ··········14
• Changing the needles ·······························15
Threading
• Preparation ············································16
• 1. Upper looper thread (Blue) ····················17
• 2. Lower looper thread (Red) ················ 18-19
• 3. Right-hand needle thread (Green) ···········20
• 4. Left-hand needle thread (Yellow) ·············21
3-thread overlocking
• 4 mm wide 3-thread Overlocking ·················22
• 6 mm wide 3-thread Overlocking ·················22
Contents
2/3-thread converter
• How to use the 2/3 thread converter ············23
Trial sewing
• After threading, make a trial sewing ·············24
Thread tension dial ··························· 24
Adjusting the thread tension ·············· 25
Roll hemming
• Roll hemmer ··········································· 26
• Preparation for roll hemming ······················26
• Standard thread tension list for roll hemming ···26
Sewing in tape ································· 27
Di󰀨erential feed (MO-654DEN)
• Di󰀨erential feed ······································· 28
Gathering (MO-654DEN)
• Gathering ···············································29
• Unpicking seams ·····································29
Thread breakage during sewing ········· 30
Securing seams ······························· 30
Maintenance
• Changing the upper knife ··························31
• Changing the lower knife ··························· 31
• Cleaning and lubricating ····························31
• Before you call for help: Trouble and corrective
measures ··············································32
Specications ·································· 33
Optional Accessories ························ 34
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