Looper Clearance To The Needle; Needle Guard - Duerkopp Adler 579 Service Instructions Manual

17. Looper Clearance to the Needle

18. Needle Guard

Caution Risk of Injury!
Set the needle guard only in the "Safe Stop" position or with the
machine turned off.
Rule and Control
The looper points should lie at a clearance of 0.1 mm to the needle.
The looper clearance to the needle should remain the same during the
whole turning movement of the looper turret.
Turn the handwheel until the left looper point lies at the center of
–
the needle. Check the clearance between needle and looper point
in the following positions.
1. Looper turret base position
2. Looper turret turned 90° manually
3. Looper turret turned 180° manually
If the clearance of the looper point to the needle is different in the 3
positions, the needle bar and looper turret centers of rotation must be
aligned to one another (see Chapter "Aligning the Needle Bar-Center
of Rotation to the Looper Turret-Center of Rotation").
Correction
Loosen screw 2 on the appropriate looper.
–
Set the clearance of the looper to the needle accordingly.
–
Tighten screws 2.
–
Rule and Control
The needle 3 must lightly touch on the needle guard 1 until the looper
points have reached the needle. The clearance between looper and
needle must be 0.1 mm thereby.
The needle guard is set at the factory and normally does not nee to be
set again. With other needle thicknesses, the needle guard may
possibly need to be set again.
Caution Risk of Injury!
Set the needle guard only in the "Safe Stop" position or with the
machine turned off.
Correction
If the required clearance is not met, the needle guard must be
–
adjusted accordingly.
1
2
3
3
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