Control And Adjustment Aids - Pfaff 3822-1/32 Instruction Manual

Adjustment
13

Control and adjustment aids

.04
Adjustment hole 1 = 0.6 mm past top dead centre of the needle bar (0.6 past t.d.c.)
Adjustment hole 3 = 0.6 mm past bottom dead centre of the needle bar (0.6 past b.d.c.)
Adjustment hole 4 = 1.8 mm past bottom dead centre of the needle bar (1.8 past b.d.c.)
Adjustment hole 5 = top dead centre of the needle bar (t.d.c.)
Adjustment hole 6 = 4.0 mm past bottom dead centre of the needle bar (4.0 past b.d.c.)
13 - 2
By marking the holes 1 and 3 - 6 with the adjustment pin (ø 5 mm), the desired
needle bar positions can be fixed exactly.
Fig. 13 - 01
Turn the balance wheel until the needle bar is approximately in the desired position.
Insert the adjustment pin into the appropriate hole and apply pressure.
Turn the balance wheel slightly backwards and forwards, until the pin locks into the rear
crank recess, in this way blocking the machine.
6
3
4
1
5
6
3
4
1
5