12 - 13
Adjustment
2-
2
Fig. 12 - 12
● Set the adjustment wheel 1 at zigzag.
● Adjust the zigzag eccentric 2 (screw 3) in accordance with the requirement.
12.05.11 Zigzag movement (only on the PFAFF 939 U)
Requirement
When the needle bar, moving from its right b.d.c., reaches its t.d.c. (hole 2), it should not
carry out any lateral motion when the zigzag stitch width lever 4 is moved to and fro.
81-019
4
2
5
1
3
81-027
4
1
3
2