Name: JUKI IT-100D
Brand: JUKI
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ENGINEER’S MANUAL

40011067

No.E355-01

Computer-controlled, Direct-drive, High-speed, 1-needle,

Lockstitch, Zigzag Stitching Machine

LZ-2290A Series

IP-100A / SC-915

IP-100D / SC-916

Table of Contents3
Specifications5
Specifications of the Machine Head5
Stitch Pattern Table6
Function List7
Cautions in Operation8
Name of each Component8
Standard Adjustment10
Height and Inclination of the Feed Dog10
Adjusting the Feed Timing10
Adjusting the Feed Timing (Excluding A-SR)10
Adjusting the Feed Timing (for A-SR Only)12
Adjusting the Feed Amount14
Adjusting the Feed Amount (Excluding A-SR)14
Adjusting the Feed Amount (A-SR Only)16
Position of the Feed Dog18
Adjusting the Slippage of Materials (for A-SU and A-DU)20
Adjusting the Origin of the Needle Rocking Motor22
Adjusting the Needle Entry Position (in Terms of Needle Rocking Direction)24
Adjusting the Needle Entry Position (in Terms of Longitudinal Direction)24
Adjusting the Longitudinal Play at the Needle Bar24
Position of the Needle Bar Connection Guide26
Height of the Needle Bar26
Adjusting the Needle-To-Hook Timing and the Needle Guard28
Position of the Bobbin Case Stopper30
Orientation of the Needle Bar Thread Holder30
Position of the Thread Tension32
Position of the Pre-Tension32
Position of the Thread Take-Up Spring Guard34
Installing the Thread Take-Up Thread Guide B34
Installing the Thread Take-Up34
Installation of the Presser Foot36
Installing and Adjusting the Bobbin Winder Unit36
Adjusting the Amount of Oil in the Hook (A-SS/-7, A-SU/-7, A-SR)38
Adjusting the Thread Trimming Unit (Thread Trimmer Type Only)40
Initial Position of the Moving Knife (Thread Trimmer Type Only)40
Timing of the Thread Trimming Cam(Thread Trimmer Type Only)42
Installing/Removing the Knife Unit (Thread Trimmer Type Only)42
Stop Position of the Needle after Thread Trimming (Needle up Stop)42
Clearance Provided between the Main Shaft Handwheel and the Stator44
Position of the Automatic Reverse Stitching Magnet (Excluding A-SR)44
Adjusting the Thread Tension Releasing Solenoid (Thread Trimmer Type Only)44
Adjusting the Stitch Length Dial (Excluding A-SR)46
Adjusting the Lubrication Mechanism (A-SS and A-SU, A-SR Only)48
Adjusting the Position of the Thread Draw-Out Wire (for the Machine with Thread Trimmer Only)48
Adjusting the Stroke of the Thread Draw-Out Wire (for the Machine with Thread Trimmer Only)50
Installing the Wiper Base (WB Type Only)50
Adjusting the Wiper Solenoid (WB Type Only)52
Position of the Wiper52
WB Type52
CB Type54
Procedures of Disassembing/Assembling and Cautions56
Adjusting and Assembling of the Gear Box (Large)56
Replacing the Motor58
Replacing the Timing Belt60
Removing/Installing the Gear Box Cover62
Disassembling/Assembling the Needle Bar Support Base Shaft (Asm.)62
Adjusting/Assembling the Reverse Feed Control Lever (A-SR Only)74
Maintenance80
Changing Procedure between Single Phase 100 to 120V and 3-Phase 200 to 240V80
Replacing Procedure of the Printed Circuit Board81
Maintenance of the Hook Lubricating Pipe Oil Filter82
Cleaning the Cooling Fan83
Applying the Exclusive Grease84
Hook Shaft Gear88
Adjusting the Needle Rocking Link89
Lubricating to Face Plate Section (A-SS and A-SU, A-SR Only)90
Protruding Amount of the Hook Shaft92
Adjusting the Feed Stepping Motor Unit (A-SR Only)92
Draining of CB Type93
Cleaning the Dust Bag of CB Type93
Operation Panel94
Names of the Respective Sections94
Information96
Matters that Demand Special Attention Regarding the Operation Panel, IP-100110
Specifications of Sc-915/916111
Function Setting Procedure of Sc-915/916111
How to Change over to the Function Setting Mode111
Function Setting List115
Detailed Explanation of Selection of Functions119
External Output/Input Connectors125
Connector Connection Diagram125
Error Display126
Error Code List (Error Display in Panel)127
Warning List130
Screws for Attachments131
Spare Parts131
Optional Cord132
Relay Cord a Asm. for Standing Machine (Part No. M9701351AA0)132
Relay Cord a Asm. for DC24V (Part No. M9703351AA0)133
Troubles and Corrective Measures134
With Regard to Lubrication134
With Regard to Sewing136
With Regard to Mechanical Components141
Confirmation148
Block Diagram149
Block Diagram a (for SC-915)149
Block Diagram B (for SC-916)150
Operation Panel Block Diagram151
Drawing of Table152
Custom Pattern Needle Entry Position Data Sheet153

Brand	JUKI
Model	IT-100D
Category	Sewing Machine
Language	English

JUKI IT-100D Engineer's Manual

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