Adjustment
11 - 31
11.05.08 Final adjustment of the control cam
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.
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
1
5
4
1
3
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