Adjustment
5
1.05 Checking and adjusting aid
By blocking holes 1 to 6 with a pin it is possible to accurately fi x the required
needle bar positions.
● Turn the balance wheel until the needle bar is roughly in the required position.
● Insert the blocking pin in the required hole and press against it.
● Turn the balance wheel slightly back and forth so that the pin enters the cutout in the
bearing plate behind and thus blocks the machine.
Hole 1 = 0.6 mm past top dead centre of the needle bar (0.6 past t.d.c.)
Hole 3 = 0.6 mm past bottom dead centre of the needle bar (0.6 past b.d.c.)
Hole 4 = 1.8 mm past bottom dead centre of the needle bar (needle rise position)
Hole 5 = top dead centre of the needle bar (t.d.c.)
Hole 6 = 4 mm past bottom dead centre of the needle bar (4 past b.d.c.)
Fig. 1 - 01
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