Timing Of Opening - DURKOPP ADLER 867 Service Instructions Manual

2.7.3

Timing of opening

3
7
2 1
Caution: Danger of injury !
Turn off the main switch.
Check and set the bobbin case opener only when the machine is
switched off.
Standard checking
After having taken up the loop, when the hook tip 2 is below the bobbin
case opener (handwheel position 350°) the sewing thread should be
able to slip through unimpededly between the bobbin case opening
finger 3 and the bobbin case 1.
–
Turn the handwheel to position "350°".
–
Check whether the bobbin case opening finger has opened wide
enough for the sewing thread to be pulled through unimpededly.
Correction
–
Remove the plug 6 from off the hook housing 4.
–
Loosen the screw 7 in the control cam 8 using the Allen key 5.
–
Twist the control cam 8.
–
Tighten screw 7.
–
Reinsert the plug 6.
8
6 5 4
GB
27