How To Adjust The Stitch Length; How To Adjust The Seam Width; Width Adjustment By Changing Needle Position; Width Adjustment With Adjustment Knob - Singer 14SH644 Operator's Manual

13. HOW TO ADJUST THE STITCH
LENGTH
• The stitch length dial should be set on the 3 mm
(1/8 inch) setting for most sewing conditions.
• Adjust the stitch length to 4mm (5/32 inch) when
sewing heavy weight fabrics.
• Adjust the stitch length to 2mm (5/64 inch) when
sewing light weight fabrics to obtain excellent seams
without puckering.
14. HOW TO ADJUST THE SEAM
WIDTH
• Overedge seam width can be achieved by repositioning
the needle position and also with the width
adjustment knob.

Width Adjustment by Changing Needle Position

• Overedge seam width can be adjusted by changing
the needle position.
a) When only left needle is used .............. 5.7 mm
b) When only right needle is used ............ 3.5 mm

Width Adjustment with Adjustment Knob

• Use of width adjustment knob will permit further
adjustment within the width range shown below.
a) When only left needle is used ..... 5.2 ~ 6.7 mm
b) When only right needle is used ... 3.0 ~ 4.5 mm
(7/32 inch)
(9/64 inch)
(13/64 ~ 17/64 inch)
(1/8 ~ 11/64 inch)
5.7 mm 5.7 mm
(7/32") (7/32")
Left / Right Left / needie
needie
5.2 mm 5.2 mm
(13/64") (13/64")
6.7 mm 6.7 mm
(17/64") (17/64")
Left / Right Left / needie
needie
3.5 mm
(9/64")
Right / needie
3.0 mm
(1/8")
4.5 mm
(11/64")
Right / needie
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