Pfaff 938 - Readjustment of the Control Cam

Adjustment
12 - 41
12.07.04 Readjustment of the control cam
Requirement
1. When the end of the hook guard 3 is level with of the right edge of the bobbin case
position finger 4, the thread catcher 5 should begin moving forwards.
2. The control cam 1 should be touching adjustment ring 6.
● Bring the needle bar to b.d.c.
● Turn control cam 1 (screws 2) in accordance with requirement 1 and shift it in
accordance with requirement 2.
Fig. 12 - 40
92-045
5
81-098
1
2
6
81-044
4
3