Sewing Machine -- Singer 241-1 Industrial

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Tools at the Asylum
Singer 241-1
Industrial, black, aka Twisted Sister

Singer 241-1 industrial sewing machine

General Info
SerialAF837153 (or AF637153)
Mfr. Specs
ManualNot found
Training (experimental section)
Tool SpeciesSewing Machines
(Includes rubric, training information, and testing information.)
Asylum Info
LocationFiber Arts
OwnerArtisan's Asylum
Operational Status
Latest Status
QR Code



  • See Industrial Sewing Machine Safety
  • Foot control pedal frame is rather high, recommended to sit in a slightly higher chair if feasible.
  • Adjust knee lift lever as needed.

About this machine

  • High speed, single needle, lock stitch machine with automatic lubricating system
  • Knee lift



  • Needle system Singer 88x1, equivalent to 88x9, 44x3, DAx1 = Groz-Beckert 1128

Bobbin & case


  • Be sure the self-oiling system is working when you are sewing - watch for oil dripping in the observation window.
  • If the oiling system is not running, STOP and email maintenance@ and fiberarts-lead@ Do NOT run the machine without oil.
  • Use "Lily White" oil specifically for industrial sewing machines. 1 qt. is enough.



  • March 2020
    • Needs oiling from top, and oil change in pan
    • Still needs new needle holder
    • Foot control pedal has pins underneath which keep it from sliding side to side. These had moved considerably. Moved them - consider a different technology to replace.
    • Adjusted foot control bracket and installed new connecting rod. Had bent either due to sliding foot pedal or because chairs shoved into it.
    • Modified servo motor tilt to set proper belt tension
    • Returned bobbin winder to original position
  • January 2020
    • Original clutch motor replaced with servo motor
  • November 2019
    • Needs needle clamp with a thread guide loop, looks like the needle bar is the same size as the 20-U.
    • Needs a top guide for the cone holder.

Side view, with original clutch motor (June 2019)
Under view, with original clutch motor. Helpful ruler, and knee lift (Sept 2019)
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