Crankshaft Drive To The Hook Shaft - Duerkopp Adler 530 Service Instructions Manual

2.7 Crankshaft drive to the hook shaft

2
4
1
Caution: Danger of injury!
Switch off main switch.
Check and adjust crankshaft drive only when the button sewing
automat is switched off.
Standard checking
The arm shaft and the hook shaft are connected by the crank rod 4
gripping into the crank 1 of the upper shaft.
The crank rod 4 and the upper bearing shell 2 have a marking on one
side. When assembling them the markings must be on the same side.
Connecting rod 4 and bearing shell 2 must not jam when being
screwed together.
–
Check whether the markings are on the same side.
–
Tighten screws 3 equally.
3 2
3
11