Lifting And Folding The Roller Presser - DURKOPP ADLER 888 Instruction Manual

6.10 Lifting and folding the roller presser

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Lifting the roller presser with a hand lever
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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).
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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. for hook thread winding).
Roller presser lifting with the knee lever
–
The roller presser is lifted by pressing the lever (3); the roller
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 - automatically
–
The roller presser lifting in the machines equipped with a
positioning motor (drive) can be controlled by the pedal (4)
treading in the position -1 (see chap. 6.16.1). 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
roller 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 (see chapter 8).