DURKOPP ADLER 745-34-2 - Crank Pin at the Arm Shaft

2.3 Crank pin at the arm shaft
The distance between the eccentric crank pin 1 and the arm shaft 4
determines the needle bar stroke and thus the upper dead center of
the jointly and separately connectable needle bars.
ATTENTION !
The crank pin 1 is precisely set by the manufacturer!
After exchanging the thread lever or if the needles do not disconnect
correctly any longer, the crank pin 1 has to be readjusted.
The adjustment of the crank pin 1 is done with the gauge 7
(Order No. 0246 002591).
It is not necessary to remove crank and armshaft for the adjustment.
12
4
7
1
1