Pfaff 900/51, Руководство по обслуживанию, Страница: 8 / 24

Adjustment
2-03
24V = 4% ED
Fig. 2 - 02
2
3
2
.06
Roller lever
2 - 3
4
7
5
6
1
4
7
Requirements
When the needle bar is positioned 1.8 mm after the b.d.c,
1. the roller of the roller lever
4
should engage easily with the control cam
7
and
2. the roller of roller lever
4
should be centred in the cam notch of the control cam
7
●
Unscrew screws
1
and
2
.
●
Put pressure on rockshaft 3 to the right.
●
Adjust roller lever
4
in accordance with
requirements 1
and
2.
●
Tighten screw
1
firmly.
●
Position the surface of the fixing collar
5
(bolt
6
) parallel to the base plate.
Screw
2
stays undone for the following adjustment.