User Guide
Setting up
9 - 3
11-04
Fig. 9 - 03
1
2
9
.03 Removing/inserting the bobbin case
Turn the machine off!
Removing the bobbin case.
● Lift clip
1
and remove bobbin case
2
.
Inserting the bobbin case:
● Insert bobbin case
1
until you feel it click
into place.
9.04 Threading the bobbin case, adjusting the thread tension
9.04.01 PFAFF 938 without thread trimmer
● Insert bobbin
1
into bobbin case
2
.
● Guide the thread through the slot under
spring
3
.
● Adjust the thread tension by turning
screw
4
.
When the thread is pulled the
bobbin
1
must rotate in the
direction of the arrow.
1
2
3
_
+
4
5
c
m
Fig. 9 - 04