The needle must be in its extreme left-hand position when inserting the cloth.
Press down on the treadle or knee-lift lever, then insert the cloth so that the hem fold
is positioned on the right-hand side and is far enough under the feed dog for the feed
dog to grip it.
Blind stitch hems on the hem edge
Usually, the blind stitch hems are sewn on the hem edge, as shown in Fig. 5. The
function of the guide rule B here is to guide the cloth.
The edge of the hem C slides along the guide rule.
The guide rule B is adjustable. It is moved to the left for thick cloth and to the right for
thin cloth.
Only tighten bolt D (Fig. 6) slightly. The guide rule is correctly adjusted when the
seam coincides exactly with the hem edge C. During sewing, you must always
ensure that the hem edge C slides along the guide rule B. Only then can it be
guaranteed that the seam is exactly on the hem edge.
Blind stitch hems on the cloth tuck
If the blind seam must be sewn on the hem tuck, the front guide rule E (Fig. 6) is
used instead of the guide rule integrated in the stitch plate (Fig. 5). It is fitted with bolt
D (Fig. 6).
It is essential that guide rule B is then removed. The front guide rule E then acts as a
guidance aid for the hem edge C and so ensures a uniform distance to the seam F.
Attention!
The front guide rule E can also be used to advantage for hemming at the hem edge
of very thick material.
Classes 252, 352 work exclusively with the front guide rule.
When sewing is complete, stop the machine in such a position - if necessary turn the
hand-wheel further by hand - that the needle is in the farthest left position, press
down the treadle or knee-lift lever, then cut off the thread loop with scissors or pull the
cloth back with a short tug so that the thread tears off over the looper and so knots
the seam.
The last stitch must be located inside the cloth, as a blind stitch sewing machine does
not loop.
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