DURKOPP ADLER 367 - Hook, Looping Stroke and Needle Bar Height; Looping Stroke, Distance between Hook Tip and Needle

2.5 Hook, looping stroke and needle bar height
2.5.1 Looping stroke, distance between hook tip and needle
Caution: Danger of injury !
Switch off main switch.
Check and adjust looping stroke and distance between hook tip and
needle only when the sewing machine is switched off.
Standard checking
The looping stroke is the w ay of the needle bar from its bottom dead centre
to the point where the hook tip is at the level of the middle of the needle.
The looping stroke is 2 mm.
In looping stroke position the distance between the hook tip and the
hollow groove of the needle must amount to 0.1 mm.
–
Arrest machine head in position I (retention pin Ø 5 mm in the large
groove).
–
Set stitch regulator lever and stitch length setting wheel
respectively to “0”.
–
Check position of the hook tip to the needle.
Correction of the distance betw een hook tip and needle
–
Remove throat plate, feed-dog and centerpiece support 1.
–
Take the bobbin case out of the hook.
–
Loosen hook fastening screws with an Allen wrench 3 mm.
The screws are reached through the slotted hole 2.
The first screw in rotation direction is located on a flat spot.
–
Insert a new needle.
–
Set stitch regulator lever and stitch length setting wheel to “0”.
–
Move needle bar in looping stroke position. (Position I)
–
Position hook tip 4 at the level of the middle of the needle.
The distance between hook tip 4 and the hollow groove of the
needle must amount to 0.1 mm.
–
Tighten hook fastening screws.
GB
19
1
32
4