Pfaff coverlock 4852 Owner's Manual page 34

32 32
Disengaging the upper blade
Switch off the electrical power
Move the movable upper blade 23 into its
highest position by turning the handwheel
towards you. Remove the waste container
and open the looper cover and the swivel
plate. Push the knob for lowering the upper
blade 27 fully to the right.
To lower the upper blade turn the knob
towards you until the upper blades clicks
into place below. The upper blade is now
disengaged.
Engaging the upper blade
Push the knob for lowering the upper blade
to the right and swivel the blade back until
it clicks into the operating position again.
Close the looper cover and the swivel plate
and reattach the waste container.