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ADAPTING THE PRESSER FOOT LIFTER
Loosen nut 141 with hexagonal ring spanner. The presser foot lifter can be adjusted to the
optimum position by moving the connecting bolt 142 up or down. Tighten nut 141.
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UPPER THREAD TENSION
Draw approx. 3 0 cm thread off the bobbin so that the thread hangs loosely between
d
bobbin and reel pin.145. Suspend test weight No. 398 099 0 4 (1 3 3 gr) from the thread
immediately after the take-up lever and note the take-off.
Correction:
Set the upper thread tension by turning the regulating knob 0 0 0 so that the thread is not
drawn by test weight No. 398 099 0 4 = 133 gr. The thread may only be drawn slowly
down when the additional tolerance weight No. 398 139 03
=
8 gr. has been suspended.
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