Cutting Pressure / Position Of The Stationary Knife - Duerkopp Adler 910 Service Instructions Manual

5.5 Cutting pressure - position of the stationary knife
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Caution: danger of injury!
Turn off the main switch.
Check and adjust stationary knife only when the sewing unit is
switched off.
Note and control
There must be 0.5 mm between the needle hole 1 and counter-knife 2.
The counter-knife 2 should be aligned in such a way that both threads
are safely cut in the middle of the cutting area and with the lowest
possible pressure. A low cutting pressure ensures a low wear and tear
on the knives.
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Unscrew screws 5 and take off throat plate 4.
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Measure the distance between the needle hole 1 and the
counter-knife 2.
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Take two threads which are to be cut, and insert them into the
needle hole.
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Operate the hook knife, and verify that the threads are cleanly cut.
Adjustment of the counter-knife position
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Loosen screws 3.
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Set distance of 0.5 mm between needle hole 1 and counter knife 2.
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Tighten screws 3.
Adjustment of cutting pressure
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Set the cutting pressure with the screws 4 on the upper side of the
throat plate.
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Replace throat plate 4.
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Insert screws 5 and tighten.
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