Hook; Hook Height - Duerkopp Adler 558 Service Instructions Manual

28. Hook

28.1 Hook Height

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Before setting the looping stroke and the needle bar height and
particularly after needle breakage the correct hook height must be
checked.
For checking the hook height use the gauge (Order no. 557 604).
Caution Risk of Injury !
Pull the mains plug before setting.
–
Remove the needle plate 4, spreader stops 7 and 9 and spreaders
6 and 8 from the hook supports.
–
Bring the needle bar in the high position by turning the handwheel.
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With the hooks inserted up to the neck in the hook supports set
gauge 5 on the hook support.
The hole 1 of the gauge must point to the right.
Thereby the tip of the left hook should lie under edge 1 and the tip
of the right hook under edge 2 of the gauge.
In this setting of the gauge the hook tips should just barely lie on
the gauge.
–
Set the correct hook height by a slight alignment of the hook.
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Reinsert the spreader stops and spreader in the hook support
again.
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