SINGER W801 - Manual (Page 11)

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adjusting the tensions
Alwoys odiui. 'he ePP"' '«"‘'» p 'h' P™”«' '»»' ''"T'
,h, '.ns,on „ r.l.osed wK,n „ „ noised- To .„cn.os. .h.
tension on the opp.n 'hneod, lonn dial (F,g. 15, 'o 'he ng .
To decrease, turn to the left.
Before odiusting lower tension be sure that the mac me i
threaded properly. , , i . * tho
When It IS necessary to change the bobbin tension, turn the
small screw (Fig. 17) on side of the bobbin case clockwise to tighten,
counterciockwise to loosen.
Fig. 16 - A
Fig.
When the uppef tensions ore properly balanced,
a perfect stitch will be formed with both threads
interlocking in fabric (Fig. 16-A).
When the upper tension is too tight, the lower
thread IS pulled up over the upper thread which is
lying flat on the fabric (Fig. 16-B)
When the upper tension is too loose, the upper
thread forms loops over the lower thread lying flat
on the fabric (Fig. 16-C).
Fig. 17