Singer 251-21 User Manual
Specifications and Main Features
-Machine Model: SINGER 251-21
-Clearance Under Presser Foot: 9/32”
-Needle Bar Stroke: 1-13/64”
-Maximum Stitch Length: 7 stitches per 25.4mm inch
-Oil Reservoir Capacity: Approximately 1 pint: 0.51% of a Quarts
-Oil Type: “TYPE A” or “TYPE C” oil
-Others: Overhead thread unwinder, knee lift, and bobbin winders
-Intended Use: General sewing operations on lightweight to medium to heavy materials.
Frequently Asked Questions
Q: Which type of oil shall be used in the SINGER 251-21 sewing machine?
A: Recommended for use in the oil reservoir is “TYPE A” or “TYPE C” oil.
Q: How regular am I supposed to check the oil level?
A: Checking the oil level should be done no less than two times in a month and only if for some reason oil has to be above the LOW MARK.
Q: What is the set stitch length of this machine?
A: The set stitch length is 7 stitches every inch
Q: What other fabric apart from the SINGER 251-21 do you recommend?
A: This is applicable in general sewing operations for light fabric and medium to heavy fabric.
Q: Is it also feasible to procure the replacement components for the SINGER 251-21?
A: Certainly you can procure the replacement units, and this is accomplished through providing the part numbers that are specified in the manual.
User Manual
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