Pfaff 900/51 - Release Lever Adjustment

Adjustment
2-06
24V = 4% ED
2.09 Release lever
Requirement
When the needle bar is positioned 1.8 mm after the b.d.c and the engaging lever 1 is
actuated, the distance between the roller of the roller lever 2 and the bottom of the
control cam 3 must be approx. 0.2 mm.
● Position needle bar 1.8 mm after b.d.c
● Activate engaging lever 1 manually.
● Push roller lever 2 onto the bottom of control cam 3.
● Tighten screw 5 slightly.
● Push release lever 4 onto engaging lever 1.
● Adjust the distance to control cam 3 to approx. 0.2 mm by tapping the roller lever 2
and measuring repeatedly with lever 4 which must be in constant lateral contact with
roller lever 2.
● Tighten screw 5 firmly.
Fig. 2 - 05
0.2 mm
2
4
1
3
5
4
2 - 6