Changing The Needle Bar Stroke - Pfaff 1193 Service Manual

Adjustment
11

Changing the needle bar stroke

.23
11 - 21
The manufacturer sets the needle bar stroke as required.
If the operating conditions make it necessary, the needle bar stroke can be
changed.
2
Fig. 11 - 20
After the needle bar stroke has been changed, it is absolutely necessary to
readjust the needle height!
Using the balance wheel, turn crank 1 until the screws 2 become accessible from the
side opening of the housing.
Turn eccentric 3 (screws 2) as far as possible towards " + " (= longer needle bar stroke)
or towards " - " (= shorter needle bar stroke).
Adjust the needle height, see Chapter 11.05 Pre-adjusting the needle height.
3
1
+
-