User Manuals: Brother LH4-B800E Lockstitch Buttonholer

Manuals and User Guides for Brother LH4-B800E Lockstitch Buttonholer. We have 3 Brother LH4-B800E Lockstitch Buttonholer manuals available for free PDF download: Service Manual, Instruction Manual, Specifications

Brother LH4-B800E Service Manual (168 pages)

ELECTRONIC LOCKSTITCH BUTTON HOLER

Brand: Brother | Category: Sewing Machine | Size: 3.98 MB

Table of Contents
6
1 Mechanism Description

8
2 Disassembly

26
- Lower Shaft and Idle Pulley Mechanism
  26
- Lower Thread Trimmer Assembly
  27
- Feed Mechanism
  29
- Bobbin Presser Mechanism
  32
- Tension Release Mechanism
  33
- Presser Lifter Mechanism
  35
- Needle Zigzag Mechanism
  38
- Cutter Mechanism
  39
- Upper Shaft and Tension Pulley Mechanism
  41
- Needle Bar and Thread Take-Up Mechanism
  42
- Presser Bar Mechanism
  44
- Upper Thread Trimmer Mechanism
  45
- Thread Breakage Detection Mechanism
  47
- Lubrication Mechanism
  48
- Rotary Hook Mechanism
  54
3 Assembly

56
- Lower Shaft and Idle Pulley Mechanism
  56
- Lower Thread Trimmer Mechanism
  57
- Feed Mechanism
  59
- Bobbin Presser Mechanism
  62
- Tension Release Mechanism
  63
- Presser Lifter Mechanism
  65
- Needle Zigzag Mechanism
  68
- Cutter Mechanism
  69
- Upper Shaft and Tension Pulley Mechanism
  72
- Needle Bar and Thread Take-Up Mechanism
  73
- Presser Bar Mechanism
  75
- Upper Thread Trimmer Mechanism
  76
- Thread Breakage Detection Mechanism
  78
- Lubrication Mechanism
  79
- Rotary Hook Mechanism
  86
4 Adjustment

88
5 Troubleshooting Guide

116
- Needle Thread Breakage
  116
- Skipped Stitches
  118
- Uneven Seams 1)
  119
- Uneven Seams 2)
  121
- Uneven Seams 3)
  121
- Uneven Seams 4)
  121
- Uneven Seams 5)
  122
- Needle Thread Runout
  123
- Unraveling of Thread Trimmed by Upper Thread Trimmer Assembly
  125
- Needle Thread Mis-Trimming
  125
- Needle Strikes Upper Thread Trimmer
  126
- Needle Breakage
  127
- 1)Imperfect Cutter Function (Imperfect Material Cutting)
  128
- Needle Thread Mis-Winding
  129
- Folding Clamp Is Not Raised (1) Pulse Motor Stepping Sound Cannot be Heard
  130
- Lower Thread Is Not Trimmed (Pulls When Material Is Removed)
  132
- Feed Mechanism Does Not Operate or Motor Is out of Step
  132
- Needle Does Not Zigzag or Noise Occurs When Needle Zigzags
  133
- Sewing Machine Stops During Sewing
  133
6 Electric Mechanism

134
- Precautions at the Time of Adjustment
  134
- Components Inside the Control Box and the Operation Panel
  135
- Fuse Explanation
  136
- Connectors
  137
- Description of DIP Switches
  155
- Description of Machine Motor Parameters
  159
- Error Code Table
  160
- Troubleshooting
  162
- Control Circuit Block Diagram
  167

Brother LH4-B800E Instruction Manual (100 pages)

E Series ELECTRONIC LOCKSTITCH BUTTON HOLER

Brand: Brother | Category: Sewing Machine | Size: 2.16 MB

Safety Instructions
2
Notes on Safety
3
Maintenance and Inspection
4
Warning Labels
5
Table of Contents
6
1 Name of each Part

8
2 Specifications

9
- Subclass
  9
- Standard Sewing Pattern List
  10
3 Optional Parts

11
- Special Needle Plate
  11
- Leg Parts
  11
- Standing Operation Pedal
  11
- Tape Guard
  12
- Ruler
  12
- Auxiliary Table
  12
- Replacement Parts Set (for 70 MM Buttonhole Length)
  13
- Programmer
  13
4 Installation

14
5 Operation

35
- Part Names and Functions
  35
- Home Position Return (Preparation)
  37
- Operating the Treadle
  38
  - Operating the Standing Pedal (Option)
    39
- Program Setting Method
  40
  - Program Initialization Condition
    40
  - Parameter Table
    40
  - Changing Program Details
    50
  - Rear Tack Vector Shape Programs
    54
  - Underlay Programs
    55
  - Cutter Operation
    56
  - Cycle Program
    57
  - Changing the Production Counter
    58
  - Changing the Lower Thread Counter Setting Value
    59
- Using the Program Memos
  60
- Adding Patterns Created Using the BAS-PC/300
  60
6 Checking the Sewing Pattern

62
- Test Feed Mode (for Checking the Sewing Pattern Without Turning the Machine Pulley by Hand)
  62
- Manual Mode (for Checking the Sewing Pattern by Turning the Machine Pulley by Hand)
  63
7 Correct Use

64
- Installing the Needle
  64
- Threading the Upper Thread
  65
- Winding the Lower Thread
  66
- Threading the Bobbin Case
  67
- Thread Tension
  68
8 Sewing

70
9 Maintenance

75
- Cleaning
  75
- Draining the Oil
  76
- Cleaning the Control Box Air Inlet Port
  76
- Cleaning the Eye Guard
  76
- Checking the Needle
  77
- Cleaning the Length Feed Plate
  77
10 Standard Adjustments

78
11 Changing Functions Using the Memory Switches

84
12 Program Initialization

86
- Initializing All Programs
  86
- Initializing a Single Program
  86
13 Changing Functions Using the Dip Switches

87
- Panel DIP Switches
  87
- Control Circuit Board DIP Switches
  89
14 Gauge Parts List

91
15 Error Code Table

96
16 Troubleshooting

98
- Instruction Manual
  100

Brother LH4-B800E Specifications (9 pages)

Electronic Lockstitch Button Holer

Brand: Brother | Category: Sewing Machine | Size: 0.22 MB

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User Manuals: Brother LH4-B800E Lockstitch Buttonholer

Brother LH4-B800E Service Manual (168 pages)

Table of Contents

1 Mechanism Description

2 Disassembly

3 Assembly

4 Adjustment

5 Troubleshooting Guide

6 Electric Mechanism

Brother LH4-B800E Instruction Manual (100 pages)

Table of Contents

1 Name of each Part

2 Specifications

3 Optional Parts

4 Installation

5 Operation

6 Checking the Sewing Pattern

7 Correct Use

8 Sewing

9 Maintenance

10 Standard Adjustments

11 Changing Functions Using the Memory Switches

12 Program Initialization

13 Changing Functions Using the Dip Switches

14 Gauge Parts List

15 Error Code Table

16 Troubleshooting

Brother LH4-B800E Specifications (9 pages)

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