I don’t know what you want to know about the mechanical parts? How it runs? How to clean and oil it? Most of that information is in the instruction manual. To find out the mechanical parts, go to the company webpage, then to repair/parts. Punch in the model # and you can usually come up with any part of the machine, the repair number and part numbers, photos/drawings, etc.
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The sweing machine is consist of Headï¼?Bedï¼?Hand casterï¼?Bobbin Winderï¼?Bobbinï¼?Thread take-upï¼?Thread adviserï¼?Upper astrictionï¼?Lower astrictionï¼?Bobbin Caseï¼?Pressure Bottomï¼?Feed Dog ect.
Parts and functions:
Head – The complete sewing machine without cabinet or carry case.
Bed – The flat surface of the sewing machine. A flat bed machine has one level to sew on. A free-arm bed has a removeable U-shaped part of the bed to reveal an arm or tub used for sewing hard-to-reach areas like a pant cuff or sleeve.
Hand wheel – the wheel located on the right side of the sewing machine. This wheel is driven by the motor, but may be turned by hand to adjust needle height.
Bobbin Winder – Mechanism used to wind bobbins.
Bobbin – Low spool that provides the lower thread.
Thread take-up – Arm that pulls up slack in thread.
Thread guide – Device which carries thread to a certain location.
Upper tension – Mechanism which controls delivery of upper thread.
Lower tension – Provided by the bobbin case. Controls delivery of the bottom thread.
Bobbin Case – Device which hold the bobbin and provides tension to the lower thread.
Pressure Foot – Foot that presses down on fabric to stabilize its movement.
Feed Dog – Mechanism which controls motion of the fabric.
Needle Plate – Plate under pressure foot with slots to allow feed dog to reach fabric and openeiong for the needle to move up and down.
Hook – Device which picks the thread off of the needle.
Feed drop – Adjustment used to take the feed dog out of play for free hand work.
Stitch length – Adjustment used to determine length from front to back of the stitch.
Stitch width – Adjustment which allows a variety of widths from side to side
THE PARTS OF A SEWING MACHINE
Needle positon selector
arm spool pin
needle clamp
stich length regulator
arm
presser foot
face plate
thread guide
bobbin winder
slide plate
feed dog