2 - 2
Adjustment
● 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.)
2.05 Checking and adjusting aid
By blocking holes 1
to
6 with a pin it is possible to accurately fix the required
needle bar positions.
1
5
3
4
6
Fig. 2 - 01
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