Notes on the motor

∙The normal operating speed of this sewing ma- chine is 1,300 stitches per minute, which is quite fast compared to the normal operating speed of 300 to 800 stitches per minute for the ordinary foot-operated sewing machine.

∙The bearings in the motor are made of a special sintered, oil-impregnated alloy mounted in oil- soaked felt to withstand long hours of continuous operation.

∙Continuous operation of the sewing machine can cause heat to build in the motor area, but not enough to adversely affect its performance.

It is important to keep fabric and paper away from the ventilating holes on the back and sides of the machine so air can get to these holes.

∙When the motor is running, sparks can be seen through the ventilating hole in the motor bracket on the side opposite the hand wheel. These sparks are produced by the carbon brushes and the commutator, and are part of the machines normal operation.

CAUTION

WHEN THREADING THE MACHINE, RE- PLACING A NEEDLE, OR WHEN THE MA- CHINE IS NOT IN USE, WE RECOMMEND DISCONNECTING THE ELECTRIC SUPPLY PLUG TO AVOID ANY POSSIBLE HAZARDS.

NOTAS SOBRE EL

MOTOR

∙La velocidad normal de funcionamiento de esta máquina de coser es de 1.300 puntadas por minuto, lo que resulta bastante rápido compara- do con la velocidad normal de 300 a 800 punta- das por minuto de las máquinas de coser norma- les que funcionan con pedal.

∙Los cojinetes del motor están hechos de una aleación especial impregnada en aceite sintético y montada en un fieltro impregnado en aceite, para poder funcionar continuamente durante muchas horas.

∙Un funcionamiento continuo de la máquina pue- de contribuir a calentar algo la máquina en la zona del motor, pero no lo suficiente como para alterar su rendimiento y funcionamiento.

Sin embargo, es menester mantener los orificios de ventilación de la parte trasera y en los lados de la máquina sin tapar con tejido o papel durante el uso, para que el aire pueda circular por los orificios.

∙Durante el funcionamiento del motor, se pueden ver chispas a través del orificio de ventilación de la abrazadera del motor, en el lado contrario a la ruedecilla. Estas chispas son producidas por las escobillas de carbón que entran en contacto con el conmutador, y forman parte del funcionamien- to normal de la máquina.

PRECAUCION

Al enhebrar la máquina, cambiar una aguja o al dejar la máquina sin usar, le recomenda- mos desenchufar la máquina para evitar cualquier peligro de corto circuito.

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Brother UM 103D manual Notas Sobre EL Motor
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UM 103D specifications

The Brother UM 103D is a versatile and user-friendly sewing machine designed to cater to both beginners and experienced sewers. This model blends simplicity with a range of features that allow for the creation of diverse sewing projects, making it an excellent addition to any sewing room.

One of the standout characteristics of the Brother UM 103D is its lightweight and compact design. Weighing in at just a few pounds, this machine is easily portable, making it ideal for those who wish to take their sewing projects to classes or retreats. Its sleek design and bright color options also enhance its aesthetic appeal, attracting a wide range of users.

Equipped with a powerful motor, the UM 103D can handle various fabrics, from lightweight cotton to heavier materials like denim. It features adjustable stitch length and width, allowing users to customize their sewing experience according to project requirements. Additionally, the machine comes with a selection of built-in stitches, including essential utility stitches, decorative stitches, and stretch stitches, adding versatility to creative projects.

One of the technological advancements in the Brother UM 103D is its easy threading system. The machine is designed for effortless bobbin winding and threading, which is particularly beneficial for beginners who may find traditional sewing machines intimidating. The quick-set bobbin system helps reduce downtime, allowing users to spend more time sewing and less time on setup.

The Brother UM 103D also features a free arm design, which is perfect for sewing cylindrical items such as sleeves and pant legs. This design enhances accessibility and ease of working on complex projects. In addition, the machine is equipped with an automatic needle threader, simplifying the threading process and reducing eye strain.

For those who like to experiment with embellishments, the UM 103D supports a variety of presser feet, enabling users to perform tasks like quilting, zipper insertion, and buttonholing with ease. Its wide accessory package includes multiple presser feet, a seam ripper, and a variety of needles, making it a comprehensive package for sewing enthusiasts.

Overall, the Brother UM 103D is an excellent sewing machine that combines portability, ease of use, and advanced features. Its user-friendly design, solid construction, and range of capabilities make it suitable for a wide array of sewing projects, providing both new and experienced sewists with the tools needed to express their creativity.
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