Adjustment
11 - 42
11.06 Adjusting the thread trimmer -726/05 on model 491
11.06.01 Position of the knife to the needle plate
Requirement
When the edge trimmer is engaged, the knife 2 must be parallel to the needle plate insert.
Fig. 11 - 38
● Switch off the machine and engage the edge trimmer.
● Loosen screw 1 and push back knife 2 slightly.
● Turn milled screw 3 until its top edge is flush with the top edge of the cylindrical guide 4.
● Loosen screw 5, position guide 6 in the centre of guide 7 and slightly tighten screw 5.
● Adjust knife holder 8 according to the requirement and tighten screw 5.
Screw 1 remains loosened for further adjustments.
7
3
6
5
4
1
8
2
2
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