Brother DB2-B791 User Manual

INSTRUCTION MANUAL
BEDIENU NGSANLEITUNG
MANUEL D'INSTRUCTIONS
MANUAL DE INSTRUCCIONES
082-8791
-100,-300,-400
-700,-900
NEEDLE FEED LOCK STITCHER WITH THREAD TRIMMER AND WIPER
VERRIEGELUNGSSTICH-NAHMASCHINE
MIT NADELTRANSPORT, FADEN-
ABSCHNEIDER UND FADENWISCHER
MACHINE
A ENTRAINEMENT PAR AIGUILLE, POINT D'ARRET ET COUPE-
FIL SITUE SOVR
LE SOCLE
MAQUINA DE COSER DE DOBLE PESPUNTE V ALIMENTACION DE AGUJA
CON CORTAHILOS V LIMPIAHILOS
082-8793
-100,-400
-700,-900
SINGLE NEEDLE ADJUSTABLE TOP AND BOTTOM FEED LOCK STITCH
MACHINE WITH AUTOMATIC
THREAD TRIMMER
"EINNADEL-STEPPSICH-MASCHINE
MIT NADEL TRANSPORT UND AUTO-
MATISCHEM FADENABSCHNEIDER
MACHINE POINT PIQURE
A AIGUILLE SIMPLE AVEC ENTRAINEMENTS
SUPERIEUR
ET INFERIEUR REGLABLES AVEC COUPE-FIL AUTOMATIQUE
MAQUINA DE COSTURA RECTA DOBLE ARRASTRE AGUJA V DIENTES
CON CORTAHILOS AUTOMATICO
082-8795
-300,-400
-700,-900
HIGH-SPEED AUTOMATIC THREAD-TRIMMING STITCH SEWING MACHINE
WITH VERTICALL V ADJUSTABLE FEED AND BUlL T-IN KNIFE
SCHNELLNAHMASCHINE
MIT AUTOMATISCHEM FADENABSCHNEIDER
UNO SENKRECHT EINSTELLBAREM TRANSPORT SOWlE EINGEBAUTEN
MESSER
MACHINE
A COUDRE A GRANDE VITESSE A COUPE-FILS AUTOMATIQUE
AVEC UN ENTRAINEMENT AJUSTABLE VERTICALE ET AVEC UN
COUTEAU INTEGRE
MAQUINA DE COSER PUNTADAS DE ALTA VELOCIDAD CON CORTAHILOS
AUTOMATICO, ALIMENTACION VERTICAL
AJUSTABLE V CUCHILLA IN-
CORPORADA
From the library of: Superior Sewing Machine & Supply LLC

Brother DB2-B791 Specifications

General

Type	Industrial Sewing Machine
Max Stitch Length	5 mm
Needle Type	DB x 1
Stitch Type	Lockstitch
Needle System	DB x 1
Presser Foot Lift	Manual

Summary

Machine Specifications and Setup

Specifications

Technical details and model variations of the sewing machines.

How to install the belt

Instructions for installing the drive belt on the sewing machine.

Connecting the power cord

Guide for connecting the main power cord to the sewing machine.

Ground wire connections

Procedures for properly grounding the sewing machine for safety.

Connection of air tube (-700)

Steps to connect the air tube from the compressor to the machine.

Machine Operation and Controls

Upper threading

Instructions for threading the upper thread on the sewing machine.

Quick reverse unit

Explanation of the quick reverse function for sewing backwards.

Thread wiper

Details on the function and adjustment of the thread wiper.

Treadle operation (-900)

How to operate the sewing machine using the foot treadle.

Operation box installation

Steps for installing the machine's operation control box.

Connecting the cord

Guide for connecting the control box cord to the machine.

Motor control and control box use

How to use the motor controls and the operation box.

Synchronizer Adjustment

Procedures for adjusting the synchronizer for needle position.

Maintenance and Replacement

Fixed knife movable knife replacement (B791, B793)

Replacing the fixed and movable knives on models B791 and B793.

Fixed knife movable knife replacement (B795)

Replacing the fixed and movable knives on model B795.

Treadle pressure adjustment

How to adjust the pressure and stroke of the foot treadle.

Brush replacement

Steps for replacing the motor brushes on the sewing machine.

Brake lining adjustment

Instructions for adjusting the brake lining for proper stopping.

Troubleshooting Guide