Final Adjustment Of The Control Cam - Pfaff 242 Service Manual

Adjustment
11

Final adjustment of the control cam

.05.08
11 - 31
Requirement
When control lever 3 is engaged and the needle point is 12 mm above the needle plate
coming from its BDC, the motion of the thread catcher 5 must begin.
5
1
Fig. 11 - 29
Bring the take-up lever to just past its TDC by turning the balance wheel and loosen the
accessible screws on control cam 1.
Continue turning the balance wheel in its direction of rotation until the machine is in
needle rise position and then activate engaging lever 2.
Taking care to ensure that control lever 3 is engaged, loosen the remaining screws on
control cam 1.
Continue turning the balance wheel in its direction of rotation until the point of the needle
is 12 mm above the needle plate.
In this position, and taking care to ensure that control cam 1 is touching retaining collar
4, turn in the direction of rotation until you feel some resistance.
In this position, tighten the accessible screws on control cam 1.
Make the remaining screws on control cam 1 accessible and tighten them.
1
2
3
1
4