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Brother LK3-B430 Service Manual

Service manual.

Also See for LK3-B430

Instruction manual - 48 pages
Parts manual - 60 pages
User manual - 46 pages

Table of Contents

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Table of Contents

2
Contents
3
Specifications
4
Motor Pulley and Speed
4
Standard Tension
5
Mechanism
6
Clutch Mechanism
7
Power Work Clamp Lifter and Thread Wiper Mechanisms
8
Feed Mechanism
9
Thread Trimmer Mechanism
10
Thread Tension and Tension Release Mechanisms
11
Disassembling Procedure
11
Cover
11
Presser Arm
11
Shuttle
12
Needle Bar
12
Threading
12
Power Work Clamp Lifter
13
Feed
13
Clutch and Brake
14
Thread Trimmer
14
Pulley
15
Assembling Procedure
22
Disc Clearances of Main and Sub Tensions
22
Movable Knife Positioning
23
Adjusting Procedure
23
Needle Bar Height Adjustment
23
Needle Bar Stroke Adjustment
23
Driver and Needle Contact Adjustment
24
Needle and Shuttle Hook Clearance Adjustment
24
Lower Shaft Gear Backlash Adjustment
24
Reference Needle Position
25
Tack Width Adjustment
25
Tack Length Adjustment
25
Needle and Feed Timing Adjustment
26
Vertical Shaft
26
Roller Holder Lever Position Adjustment
26
Worm Wheel Backlash Adjustment
26
Change Gear Backlash Adjustment
27
Stopper Adjustment
27
Clutch Lever Position Adjustment
27
Ball Presser Plate Position Adjustment
28
Clutch Cam Timing Adjustment
28
Start Lever Position Adjustment
29
Start Safe Lever Adjustment
29
Start Stopper Position Adjustment
29
Brake Adjustment
30
Clutch Lever Spring Pressure Adjustment
30
Brake Spring Pressure Adjustment
31
Power Drive Lever Adjustment
31
Work Clamp Height Adjustment
31
Standard Work Clamp Height
32
Movable Knife Position
32
Movable Knife Timing Adjustment
33
Thread Take-Up Lever Stroke Adjustment
33
Main Tension Disc Clearance Adjustment
33
Sub-Tension Adjustment
34
Thread Wiper Height Adjustment
34
Thread Wiper Stroke Adjustment
35
Stitch Changing Procedure
35
From Ordinary Stitches to Knitted Stitches
36
From Ordinary Stitches to Denim Stitches
37
List of Replacement Parts
39
Troubleshooting Chart

Table of Contents

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Table of Contents

2
Contents
3
Specifications
4
Motor Pulley and Speed
4
Standard Tension
5
Mechanism
6
Clutch Mechanism
7
Power Work Clamp Lifter and Thread Wiper Mechanisms
8
Feed Mechanism
9
Thread Trimmer Mechanism
10
Thread Tension and Tension Release Mechanisms
11
Disassembling Procedure
11
Cover
11
Presser Arm
11
Shuttle
12
Needle Bar
12
Threading
12
Power Work Clamp Lifter
13
Feed
13
Clutch and Brake
14
Thread Trimmer
14
Pulley
15
Assembling Procedure
22
Disc Clearances of Main and Sub Tensions
22
Movable Knife Positioning
23
Adjusting Procedure
23
Needle Bar Height Adjustment
23
Needle Bar Stroke Adjustment
23
Driver and Needle Contact Adjustment
24
Needle and Shuttle Hook Clearance Adjustment
24
Lower Shaft Gear Backlash Adjustment
24
Reference Needle Position
25
Tack Width Adjustment
25
Tack Length Adjustment
25
Needle and Feed Timing Adjustment
26
Vertical Shaft
26
Roller Holder Lever Position Adjustment
26
Worm Wheel Backlash Adjustment
26
Change Gear Backlash Adjustment
27
Stopper Adjustment
27
Clutch Lever Position Adjustment
27
Ball Presser Plate Position Adjustment
28
Clutch Cam Timing Adjustment
28
Start Lever Position Adjustment
29
Start Safe Lever Adjustment
29
Start Stopper Position Adjustment
29
Brake Adjustment
30
Clutch Lever Spring Pressure Adjustment
30
Brake Spring Pressure Adjustment
31
Power Drive Lever Adjustment
31
Work Clamp Height Adjustment
31
Standard Work Clamp Height
32
Movable Knife Position
32
Movable Knife Timing Adjustment
33
Thread Take-Up Lever Stroke Adjustment
33
Main Tension Disc Clearance Adjustment
33
Sub-Tension Adjustment
34
Thread Wiper Height Adjustment
34
Thread Wiper Stroke Adjustment
35
Stitch Changing Procedure
35
From Ordinary Stitches to Knitted Stitches
36
From Ordinary Stitches to Denim Stitches
37
List of Replacement Parts
39
Troubleshooting Chart

Also See for Brother LK3-B430

Brother KM-430B Parts Manual

Brother KM-430B Parts Manual 60 pages

Brother LK3-B430 Instruction Manual

Brother LK3-B430 Instruction Manual 48 pages

Brother lk3-b430 Instruction Manual

Brother lk3-b430 Instruction Manual 47 pages

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Comments to this Manuals

Latest comments:

Tejas Oct 03, 2018 07:56:

Lk3-B430-1 is my machine
The issue is when i start thr machine the needle goes done before the foot pressing the fabric and the needle gets stuck
Then i stop the machine switch it off
Then rotate the pully reverse till the needle come up and there is a click sound
Along with which the foot also come up
Then the machine gives a proper bartack few times but then again the same issue happens
A suitable solution is awaited
My no is 7738866664