Singer 522D - Page 15

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High Speed Flat Bed Interlock Sewing Machine | Instruction Manual and Parts List
3.5
Machine
Threading
Point ‘1’
For standard threading, follow the
solid lines of Figure 19.
For more stretchable thread, follow
the dashed lines indicated by ‘A’ .
Point ‘3’
For more stretchable thread, adjust
as Figure 21 left.
For less stretchable thread, adjust
as Figure 21 right.
Point ‘2’
If the top cover thread is too loose,
thread the guide by referring to line
‘B’. If the top cover thread is still
too loose, then thread the guide by
referring to line ‘C’, according to
Figure 20.
If the top cover thread is too tight,
thread the guide by referring to the
line ‘D’.
Point ‘4’
For standard threading, follow the
solid line of Figure 22.
For more stretchable thread, follow
the dashed line indicated by ‘A’ .
Point ‘5’
For standard threading, follow the
solid line of Figure 23.
For more stretchable thread, follow
the dashed line indicated by ‘E’.
Figure 19
Figure 20
Figure 21
Figure 22
Figure 23