Needle Guard; Alignment Of The Bobbin Case Holder - DURKOPP ADLER 577 Series Manual

3.4 Needle guard

3
2

3.5 Alignment of the bobbin case holder

22
Rule:
When producing the stitch c, the needle guard 1, in the loop stroke
position, should rest against the needle, but without deflecting same.
Setting:
–
By turning the crank and the hand wheel move the machine in the
respective position, corresponding to the Rule.
–
Check the position of the needle guard in respect to the needle
according to the Rule and correct the needle guard, if required.
Rule:
The holder 2 should be at the same height as the lower part of the
bobbin case 3.
The surfaces of the backs (see arrows) of the holder 2 and the bottom
of bobbin case 3 should lie at one level.
Setting:
–
By rectifying the holders 2 by proper bending tools, correct the
height according to the Rule.
–
Loosen the screw 4.
–
Shift the holder 2 according to the Rule and tighten the screw 4.
ATTENTION !
Danger of damaging the machine!
Set the holder 2 so that no contact between the left bobbin case nose
and the hook back can occur.
Right bartack
d
1
e
c