Operation Manual

6.7 Lifting the top roller up

Mechanical lifting of the top roller is enabled by means of the

hand lever (1), which contemporarily, after it has been lifted in

the arrow direction, is locking the top roller in its top position

and turning (adjustment) of the machine is possible. The top

roller can be lifted via knee lever or left treadle - depending on

the machine sub-class. Automatical lifting by means of elec-

tromagnet is described in the paragraph No. 7.

When lifting top roller via knee lever or the treadle

or electromagnet, the needle must be in the upper

position and the machine has to come to a full

stop.

6.8 Reverse stitching

The change of direction of sewn work can be mechanically

controlled via a reverse stitching lever (1) by its depression in

the arrow direction (down). The sub-class defines whether

the machine has electromagnetic reverse stitching  see para-

graph No. 7.

6.9 Stitch length adjustment

Stitch length adjustment is by dial (2) by its turning. Turning

clockwise stitch length is decreased, turning counter-clock-

wise stitch is length increased.

6.10 Safety clutch

The machine is provided with a safety clutch which disen-

gages the driving unit, when the hook is blocked. Reconnec-

tion must be done in the following way:

Caution! Risk of injury!

Before assembly turn the main switch off and wait

until the motor stops!

- Turn the manually operated wheel as far as you can reach the

suitable point for inserting a screwdriver into the space(1).

- Continue turning the manually operated wheel in direction

of the arrow located on it, until you feel the drop in of the

safety clutch.