Pfaff 4874 Service Manual page 66

IRREGULAR LOOP FORMATION ON THE CHAIN NEEDLES (COVER HEMS) 29a
Fig.1
Blue Green Red Blue Green Red
L2 L2
L0 L1 L0 L1
Blue Green
L2
L0/L1
Fig.2 Fig.3 Fig.4
Blue Green
Blue Green
L0/L1 L2
L2
L0
Fig.5 Fig.6