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VI. EXPLANATION OF THE LK-1900BB COMPUTER-

CONTROLLED, HIGH-SPEED BARTACKING MACHINE

(WITH

THE BIRD'S NEST PREVENTING AND SHORTER-THREAD

REMAINING TYPE THREAD TRIMMER)

This chapter only describes the items which are different from the LK-1903BBS.

All other items are same with the LK-1903BBS.

1. SPECIFICATIONS

Different specications from those of the LK-1900B only are described.

1 Max. sewing speed 3,200 sti/min

2 Needle DPx17 #14

3 Lift of the work clamp foot Max. 10mm

4 Number of standard patterns 50 patterns

Default Chapter2
- Default Chapter2
  - Table of Contents2
- Computer-Controlled High- Speed Bartacking Machine4
I. Explanation of Lk-1900B4
Specifications4
Configuration5
- Names of Main Unit5
- Names and Explanation of Switches on the Operation Panel6
Installation7
- Installing the Electrical Box7
- Installing the Pedal Sensor7
- Attaching the Connecting Rod8
- Installing the Head Support Rod8
- Installing and Connecting the Power Switch9
- How to Carry the Sewing Machine10
- Installation of the Sewing Machine Head10
- Installing the Drain Receiver and the Head Support Rubber11
- Safety Switch11
- Tilting the Sewing Machine Head12
- Installing the Operation Panel12
- Connecting the Cords13
- Handling the Cords14
- Installing the Eye Protection Cover14
- Installing the Thread Stand15
- In the Case the Machine Is Transported after Factory-Completed at the Time of Shipment15
Operation of the Sewing Machine16
- Lubrication16
- Attaching the Needle16
- Threading the Machine Head17
- Installing and Removing the Bobbin Case17
- Installing the Bobbin18
- Adjusting the Thread Tension18
- Adjusting the Thread Take-Up Spring19
- Example of the Thread Tension19
Operation of the Sewing Machine (Basic)19
- Selection of Language19
- Setting the Pattern Number20
- Setting the Item Data20
- Checking the Contour of a Sewing Pattern23
- Sewing24
- Changing the Pattern to a Different One24
- Winding a Bobbin25
- Thread Clamp Device26
Operation of the Sewing Machine (Advanced)28
- Performing Sewing Using the Pattern Keys28
- Sewing Using the Combination Function (Cycle Sewing)33
- Sewing through the Use of the Counter36
- How to Use the Temporary Stop39
- Setting the Pattern Thread Tension40
- Copying or Deleting Various Kinds of Pattern Data41
- Communication43
- Cautions in Operation45
- Setting Enable/Disable of Standard Pattern Invoking46
- Maintenance47
- How to Use the Memory Switch54
  - Method of Changing Memory Switch Data54
  - List of the Memory Switch Functions55
- Others59
Explanation of the Lk-1901B, Computer-Controlled High- Speed Eyelet Buttonhole Bartacking Machine76
- Specifications76
- Installation of the Sewing Machine and Preparation of the Operation76
- Preparation of the Sewing Machine77
- Operation of the Sewing Machine79
  - Selection and Confirmation of the Sewing Patterns79
Explanation of the Lk-1902B, Computer-Controlled High-Speed Belt-Loop Attaching Machine80
- Specifications80
- Preparation of the Sewing Machine80
  - Threading the Machine80
- Operation of the Sewing Machine81
  - Selection and Confirmation of the Sewing Patterns81
  - Combination of the Work Clamp Foot and the Feed Plate81
- Speed Lockstitch Button82
- Computer-Controlled High- Computer-Controlled, High-82
Explanation of the Lk-1903B, Computer-Controlled High82
- Sewing Machine82
Specifications82
Preparation of the Sewing Machine82
- Installation of the Sewing Machine and Preparation of the Operation82
- Needle and Thread82
- Various Sewing Modes83
Adjustment of the Sewing Machine84
- Position of the Button Clamp Jaw Lever84
- Adjusting the Feed Plate85
- Adjusting the Button Clamp Jaw Lever86
- Adjusting the Lifting Amount of the Button Clamp86
- Adjustment of the Pressure of the Work Clamp Unit87
- Adjustment of the Wiper Spring87
Others88
- Installing the Save Button Bar (Accessory Part)88
- Model Classification According to the Button Size88
- Attaching the Shank Button (Optional)89
V. Explanation of the Lk-90
- 1903 Bbs High-Speed Comput-90
- Er-Controlled Flat Button90
- Sewing Machine90
- Bird's Nest Preventing and Shorter-Thread Remaining Type Thread Trimmer)93
Specifications93
Preparation of the Sewing Machine93
- Installation of the Sewing Machine and Preparation of the Operation93
- Installing the Regulator and Solenoid Valve Asm94
- Installing the Air Hose94
- Connecting the Cords95
- Connecting the Air Piping96
- Installing the Cloth Chip Bag98
- Fixing the Finger Guard98
- Needle and Thread99
- Various Sewing Modes99
Adjustment of the Sewing Machine100
- Adjusting the Knife for the Shorter Thread Remaining Thread Trimmer100
- Adjusting the Suction Pipe for the Shorter-Thread Remaining Type Thread Trimmer101
- Replacing the Knife of the Shorter-Thread Remaining Type Thread Trimmer102
- Adjusting the Work Clamp Rod (for 1903BBS Only)103
- Replacing the Non-Slip Sheet (for 1903BBS Only)103
Maintenance104
- Cleaning the Inside of the Hook Cover104
- Cleaning the Thread Clamp104
Explanation of the Lk-1900Bb105
- Maining Type Thread Trimmer)105
- Specifications105
- Preparation of the Sewing Machine106
  - Table of the Sewing Patterns106
- Adjustment of the Sewing Machine108
  - Replacing the Bird's Nest Preventing Knife108
Drawing of the Table109

Brand	JUKI
Model	LK-1900B series
Category	Sewing Machine
Language	English

JUKI LK-1900B series User Manual

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