Description Of The Locking Positions - Dürkopp Adler M-Type 869 Serviceanleitung

1.2 Description of the locking positions

1
4
With the locking pin 1 and the marking grooves 2 and 3 in the needle
bar crank 4 the sewing machine can be locked in two setting
positions.
Position I = Ø 5 mm locking pin for large groove
= loop stroke, needle bar height
Position II = Ø 3 mm locking pin for small groove
= needle bar at top dead centre, graduated scale on hand
wheel
4
2