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Brother LH4-B814-4 - User Manual

Brother LH4-B814-4
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INSTRUCTION MANUAL
FOR
BROTHER MODEL
LH4-B814-4
Gimp buttonhol
er
for
knit
wear
BROTHER INDUSTRIES,
LTD.
NAG
O
YA
,
JA
PAN
From the library of: Superior Sewing Machine & Supply LLC

Table of Contents

Questions and Answers

  • A
    amanda54Aug 2, 2025
    Why does my Brother LH4-B814-4 Sewing Machine thread keep breaking?
    • J
      James RiveraAug 2, 2025
      Your Brother Sewing Machine thread may be breaking because of several reasons. It could be due to a blunt or bent needle (replace the needle), a needle that is too thin (use a thicker needle), a damaged needle plate (replace the needle plate), or poor quality thread (use higher quality thread). Also, too much tension on the upper thread (reduce the tension) or improper threading (re-thread the machine correctly) could be the cause. Other potential causes include a damaged hook point (replace the hook), the hook being out of timing (re-time the hook), or dust or lint in the hook (clean the hook).
  • H
    holly87Aug 12, 2025
    What to do if my Brother LH4-B814-4 Sewing Machine is skipping stitches?
    • S
      Sally EdwardsAug 12, 2025
      If your Brother Sewing Machine is skipping stitches, it could be due to a bent needle (replace with a straight needle), incorrect setting of the needle height and angle (check and adjust the needle setting), a needle size that is too thick or thin (use appropriate needle size), or the hook and needle being out of timing (re-time the hook and needle).
  • S
    Sarah WeberAug 22, 2025
    How to fix threading off on my Brother LH4-B814-4?
    • N
      nicoleburnsAug 23, 2025
      Threading off in your Brother Sewing Machine can be caused by a weak spring action of blades (replace the weak spring) or incorrect trimming of the upper thread by the upper blade (correct the upper blade trimming).

Summary

1. SPECIFICATIONS AND FEATURES

Key Features

Details on automatic trimming, lubrication, speed, ease of adjustment, wide workspace, durability, and operational convenience.

2. SETTING UP AND RUNNING

1. How to Fix the Motor

Instructions for mounting the motor, including pulley alignment and rotation direction.

2. Setting the Machine Head on Table Top

Steps for placing and securing the machine head onto the table top, including belt tension.

3. HOW TO USE THE MACHINE

2. Needle and Its Setting

Guidance on selecting the correct needle size and proper insertion technique for optimal stitch formation.

3. Selection of Thread and Threading

Recommendations for high-grade threads and proper threading procedures for quality buttonholes.

10. Emergency Stop

Instructions for using the emergency stop lever to halt the machine instantly and prevent damage.

4. ADJUSTMENT

1. Upper Tension

How to adjust the upper thread tension using the two tension regulators.

2. Timing the Hook and Needle

Procedure for adjusting the timing between the hook and needle for optimal stitch formation.

3. Adjusting the Width of Buttonhole and Position of Buttonhole

Steps for adjusting zigzag width and needle swing for buttonhole size and placement.

4. Buttonhole Slot and Length

Setting the buttonhole length using the cutter and length feed indicator.

5. Number of Stitches

Information on selecting the correct number of stitches per cycle based on buttonhole length.

6. Setting Position of Cutter

7. Position and Adjustment of Gimp Guide

17. Adjusting Automatic Thread Breakage Perceiving Device

19. Adjusting Oiling

5. TROUBLE SHOOTING

1. Thread Breaks

2. Stitch Skipping

Brother LH4-B814-4 Specifications

General IconGeneral
BrandBrother
ModelLH4-B814-4
CategorySewing Machine
LanguageEnglish

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