Hook, Looping Stroke And Needle Bar Height; Hook Height - Duerkopp Adler 868 Service Instructions Manual

2.6

Hook, looping stroke and needle bar height

2.6.1 Hook height

Caution: Risk of injury !
Turn the main switch off !
Check and set the hook height only with the sewing machine switched
off.
The hook height is synchronized to the movement of the thread lever
and very important for a satisfactory sewing result. The hook height is
set ex factory to the measure of 4.7-
of the throat plate and the top edge of the bobbin case lug).
The setting is effectuated by fitting in the setting discs 4 that come in
between the oil disc 2 and the circlip 3 (see the parts list).
The hook height must be reset after changing the hook shaft.
Correction hook height
–
Measure the actual hook height.
Dismantle the hook 1.
–
Loosen screw 5.
–
Pull the oil disc 2 off to the top and insert the corresponding
–
number of setting discs 4.
Put the oil disc 2 back on again and tighten screw 5.
–
(measure between the top edge
0.1
1
5
2
4
3
GB
25