Hook Lubrication - Duerkopp Adler 868 Service Instructions Manual

3.1

Hook lubrication

1
2
Caution: Risk of injury !
Turn the main switch off !
Adjust the hook lubrication only with the sewing machine switched off.
Make a functional test only with utmost caution when the sewing
machine is running.
Standard checking
The necessary oil quantity for the correct lubrication of the hook has
been adjusted by the manufacturer. It has to be altered, only in
exceptional cases.
The required oil quantity depends on the sewing threads to be
processed and on the sewing material.
A piece of paper - preferably blotting paper - held below the hook has
to be slightly sprayed with oil when sewing approx. 1 m of sewing
thread and fabric.
Correction
Adjust the oil quantity with the regulating screw 1 with the
–
Allen key 2.
Turn the screw counter-clockwise = increase the oil quantity
Turn the screw clockwise = reduce the oil quantity
ATTENTION !
The adjusted oil quantity only changes after a several minutes of
operation.
GB
61