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BA_327D_A2_200715_en.doc
4.5.2
Thread tensioning – bobbin thread (Fig. 10)
The leaf spring (2) regulates the bobbin thread tension. By turning the flat-head screw
with catch (1), the leaf spring must be adjusted in such a way that when the bobbin is
inserted, and the thread is correctly pulled under the leaf spring and the bobbin case
is released, the latter, together with the bobbin drops slowly down. A slight pull on the
thread might be necessary.
Fig. 10
Summary of Contents for 327D
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