6.8 Lifting and folding the roller presser
Lifting the roller presser with a hand lever
–
Lift the roller presser by the lever turning (1) in the arrow direction
to the stop (the roller presser remains lifted, the lever (1) remains
tilted).
–
Lower the roller presser by putting the lever (1) to the initial
position, or by pressing the knee lever (3) and its subsequent
release.
–
After the roller presser lifting with the hand lever, the machine may
be started up (e. g. at the hook thread winding).
Roller presser lifting with the knee lever
–
The roller presser is lifted by pressing the lever (3); the r oller
presser is lowered at the lever release.
Caution!
At the roller presser lifting higher than 6 mm over the throat plate the
machine may not operate, otherwise the needle bar with the needle
holder hits the roller presser, or the needle guides of the double needle
machines.
Roller presser lifting with a pedal - a utomatically
–
The roller presser lifting in the machines equipped with a
positioning motor (drive) can be c ontrolled by the pedal (4)
treading in the position -1 (see par.6.13.1). The roller presser is
lifted to the upper dead point by means of an integrated electric
magnet or pneumatic cylinder. After the pedal is released, the r oller
presser is lowered.
–
It is possible to pre-select the automatic roller presser lifting at
each machine stop without the necessity to tread the pedal in the
position to the position -1. In this case, the roller presser is lowered
at the pedal treading in the position + 1. After the finishing of the
seam, the roller presser remains lifted permanently.
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