Check And Adjustment Aid - Pfaff 3827-4/33 Instruction Manual

Adjustment
12

Check and adjustment aid

.04
Hole 1
Hole 3
Hole 4
Hole 5
Hole 6
12 - 2
By placing pegs in holes 1 and 3 - 6 the required needle bar positions can be
exactly fixed.
Fig. 12 - 01
Turn the handwheel until the needle bar has approximately reached the required position.
Place the 5 mm rig pin in the appropriate hole and put pressure on it.
Turn the handwheel forwards and backwards a little until the rig pin moves into the slot
in the crank behind the bearing plate, thus blocking the machine.
= 0.6 mm after the top dead center of the needle bar (0.6 a. TDC)
= 0.6 mm after the bottom dead center of the needle bar (0.6 a. BDC)
= 1.8 mm after the bottom dead center of the needle bar (needle rise)
= Top dead center of the needle bar (TDC)
= 4 mm after the bottom dead center of the needle bar (4 a. BDC)
6
3
4
1
5