Control And Adjustment Aids - Pfaff 5483 Instruction Manual

11

Control and adjustment aids

.04
Fig. 11 - 01
Turn the balance wheel until the needle by is approximately in the required postion.
Insert the adjustment pin into the appropriate adjustment hole and apply pressure.
Turn the balance wheel slightly backwards and forwards, until the adjustment pin slips
into the rear crank recess, blocking the machine.
Adjustment hole 1 = top dead center of the needle bar (TDC)
Adjustment hole 3 = bottom dead center of the needle bar (BDC)
Adjustment hole 4 = 0.8 mm before the top dead center of the needle bar (0.8 before TDC)
By adjusting the holes 1, 3 and 4 with the adjustment pin ( ∅ 5 mm) the
required needle bar positions can be set exactly.
3
1
4
Adjustment
3
4
1
11 - 2