SunStar KM-380 User Manual

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1. For proper use of the machine, thoroughly
read this manual before use.
2. Keep this manual in a safe place for future
reference in case the machine breaks down.
User’s
Manual
KM-380
KM-380B
High-Speed, 1-Needle Lock-
Stitch Sewing Machine With
Compound Food & Walking
Foot Mechanism
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SunStar KM-380 Specifications

General

Brand	SunStar
Model	KM-380
Category	Sewing Machine
Language	English

Summary

User's Manual

KM-380 KM-380B Models

Identifies the specific sewing machine models covered by the manual.

Machine Type and Features

Details the machine's core functionality: high-speed lockstitch with compound food and walking foot.

Method of Use

Installation and Setup

Guides the user through the initial setup and installation process.

Operation Precautions

Lists important safety and operational precautions during machine use.

Installation Details

Specific instructions for machine placement, securing, and knee lifter assembly.

Lubrication and Oil Tank

Procedures for daily lubrication and checking the oil tank.

Attaching and Inserting Components

Bobbin Winding Procedure

Threading the Machine

Stitch Length Adjustment

Thread Tension Principles

General guidelines for achieving proper thread tension balance.

Needle and Bobbin Tension

Presser Foot Pressure

Hook Handling and Assembly

Setting the Machine

Needle-to-Hook Relationship

Feed Dog Height Adjustment

Feed Cam Positioning

Presser Foot Adjustments

Needle Bar Adjustment