Duerkopp Adler 745-28 Installationsanleitung Handbuch - Seite 5
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2.4 Checking V-belt tension
When the machine has been moved the V-belt tension (which is
pre-set prior to despatch) must be checked.
When the tension is correct it should be possible to depress the middle
of the V-belt 1 by about 10 mm by pressing on it with a finger.
Correcting V-belt tension:
–
undo screw 2
–
swivel sewing drive 3 until the required V-belt tension is produced
–
tighten screw 2
1
2
3
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