Inserting The Bobbin; Checking The Bobbin Thread Tension; Correcting The Tension; Inserting The Bobbin Case - Pfaff electronic 6250 Instruction Book

lnsertinj the bobbin
Iris(3rt tli( lull Inibtun
iii
ii l,ll,ir When
doing
50,
pull tire tIm il
ririi ,iul
A,
ther iri(1(r tt'risrcnr
iriii(j
b 11ri
ii i"t' iii
opening (see
arrow)
Check:
When you pull tho thread
clockwise.
the
lrln niust turn
Checking the bobbin thread tension
Hold the bobbin case by the thread and move your
hand sharply upwards. The uobbn case must slip
downwa rds a little with eucti baud movement.
Correcting the tension:
Turn adjusting screw C just a little to the left to
decrease the bobbin thread tension.
Turn
screw
C just a little to the right to increase thu
tension.
Lift cover F and push the bobbin cac fully oiili pu
of the sewing hook Opening E of the bobbin
Ce
must face upwards.
Inserting the bobbin case
Check:
Pull the bobbin threud sharply, the bobbin can
not fall out of the hook.