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Manuals
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Baby Lock Manuals
Sewing Machine
BLSY
Service manual
Baby Lock BLSY Service Manual
Computerized sewing machine
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Contents
Table of Contents
Bookmarks
Table of Contents
2 Disassembly
Table of Contents
Main Unit Main Parts
Power Unit, Motor Unit
Thread Tension Unit
Bobbin Winder
Rotary Hook Driving Unit, Feed/Rotary Hook Unit, Thread Cutter Unit, Side Feed Unit
Needle-Presser Unit, Needle Threader Unit, Upper Shaft Unit
Modules Needle-Presser Module
Drop Module
Feed/Rotary Hook Module
Side Feed Module
Thread Cutter Module
3 Assembly
Main Unit Needle-Presser Unit, Needle
Rotary Hook Driving Unit, Feed/Rotary Hook Unit, Thread Cutter Unit, Side Feed Unit
Bobbin Winder Unit
Thread Tension Unit
Power Unit, Motor Unit
Main Parts
Module Thread Cutter Module
Side Feed Module
Feed/Rotary Hook Module
Drop Module
Needle-Presser Module
4 Adjustment
Adjustment
Touch Panel Adjustment
Timing Belt Tension Adjustment
Motor Belt Tension Adjustment
Upper Shaft Rotation Shutter Angle Adjustment
Three Point Needle Drop Adjustment
Needle Clearance Left/Right Adjustment
Needle Bar Rising Adjustment
Needle Bar Height Adjustment
Needle Threader Adjustment
Clearance between Needle and Rotary Hook Point Adjustment
Presser Bar Height and Parallelism Adjustment
Needle and Presser Front/Back Position Adjustment
Fine Tension Adjustment
Upper Thread Tension Adjustment
Thread Guide Shutter Clearance Adjustment
Inner Rotary Hook Tension Adjustment
Inner Rotary Hook Bracket Position Adjustment
Cloth Pressure Setting Adjustment
Feed Dog Height and Squareness Adjustment
Front/Back and Left/Right Position of Feed Dog Adjustment
Feed Forward/Backward Adjustment
Side Feed Straight Stitch Adjustment
One Point Adjustment
Bobbin Winder Adjustment
Knee Lifter Position Adjustment
BH Lever Switch Position Adjustment
5 Failure Investigation
Error Message List
The Power Does Not Come on
Pulse Motors Do Not Return to Starting Point
The Touch Panel Does Not Work
Main Motor Does Not Turn
Main Motor Rotation Abnormal
Cannot Sew Pattern Well
Cannot Sew Button Holes Well
Stitch Length and Zigzag Width Cannot be Done by Manual Adjustment
Problems with Vertical Needle Movement and Reverse Stitching
Does Not Operate When the Foot Controller Is Used
Needle Bar Relase Does Not Occur Normally
Thread Tensioning Does Not Go Well
Thread Cutter Does Not Work Normally
Bobbin Winding Cannot be Done
The Lamp at Hand Does Not Have Light
Bobbin Thread Detection Does Not Work Normally
Upper Thread Sensor Does Not Work Normally
The Presser Foot Lifter Does Not Work Correctly
USB Function Cannot be Used Normally
Feed Dog Drop Dose Not Work Normally
Error Is Displayed
Needle Bar Module Wiring
Rotary Hook Module Wiring
Thread Cutter Module Wiring
Main PCB Wiring
Front Cover Wiring
Bobbin Winder Unit Wiring
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Chapters
2 Disassembly
21
3 Assembly
109
4 Adjustment
233
5 Failure Investigation
261
Table of Contents
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