Setting The Thread Tensions; Setting The Release Eccentric - Pfaff Coverlock 4772 Service Manual

Setting the thread tensions

33. Setting the release eccentric

Note:
Only the blue and green thread tensions are released when the presser bar lever is raised
Requirement:
When the presser bar lever is lowered, the release eccentric 58 and its groove 59 must face upward
vertically (figure 57).
Setting:
G Remove the front housing according to the adjustment and repair instructions.
G Lower the presser bar.
G Slightly loosen the screw 60.
G Move the release eccentric in such a manner until the groove 59 is facing upward vertically.
G Tighten the screw 60.
Note:
The needle bar drive 61 must not have any axial play.
Test:
G As described under "Requirement".
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