Bobbin Thread Tension - ELNA 2003 Service Manual

The bobbin thread tension should be between 25 and 30 g when pulling a size Ne 50/3
cotton thread in the direction of B with tension gauge (ref. Fig. 1).
1. Turn the adjusting screw C in the direction
D when the bobbin thread tension is too tight
E when the bobbin thread tension is too loose
(ref. Fig. 2)
Fig. 1
C
Fig. 2
D

BOBBIN THREAD TENSION

Direction B
9
E