Operation Manual

Operation
50 Operating Manual 967 version 00.0 - 11/2013
5.12.2 Limiting presser foot stroke
When the pressure foot contacts the material, dynamic force is
generated that increases with thinner and harder materials. This
force puts great strain on the machine and manifests itself through
noise. The operator can adjust the pressure foot stroke to material
thickness according to the table,  Table: Maximum presser foot
stroke, p. 99.
5.12.3 Setting presser foot stroke
Classic machines have two adjusting wheels for setting presser
foot stroke.
The left adjusting wheel (1) sets normal presser foot stroke.
The right adjusting wheel (2) sets increased presser foot stroke.
Normal stroke is designed for high sewing speed. Increased stroke
is designed for sewing over thicker areas in the material. Eco
machines only have the left adjusting wheel.
Important: The increased presser foot stroke should not be lower
than the normal presser foot stradjusting wheelsoke. The machine
is designed so the right adjusting wheel cannot set a lower stroke
than the left adjusting wheel.
The machine can be damaged if the presser foot stroke is
too high for the thickness and hardness of the material.
Test presser foot stroke when sewing thinner materials and
reduce it accordingly.
ATTENTION
Machine can be damaged if the adjusting wheels are
forced.
Do not attempt to force the right adjusting wheel to set a lower
stroke than the left adjusting wheel.
ATTENTION