DURKOPP ADLER 540-100-1, Manual Complete

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5.5.4 Needle cooler (optional)
Function
The needle cooler operates parallel to the scissors pivoting cylinder.
This means that the needle cooler is active while the scissors are
swung out.
Installation
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Screw the throttle 21 into the tap hole of the scissors block.
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Push the blower pipe 22 with its long arm into the throttle nozzle.
The position of the air outlet can be varied by turning and pulling
out the blower pipe.
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Cut the pneumatic line 23 leading to the pivoting cylinder 5 cm
underneath the arm outlet.
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Insert the Y-piece.
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Lay a new pneumatic line from the connection 24 on the scissors
block to the Y-piece.
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Shut the throttle 21 by turning the throttle screw 25 clockwise.
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Switch the machine on.
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Skip to the service menu.
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Select the menu item T3.1.1 outputs. Activate the output Y2 for the
swinging out of the scissors.
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The throttle 21 of the needle cooler now receives compressed air.
Adjust the desired air-flow by opening the throttle screw 25.
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Quit the service menu by actuating the ESC key.
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Test the function of the scissors swinging out by sewing a test
seam.
Attention!
Do not open the throttle completely. If the air-flow on the needle
cooler gets too strong, it impairs the swinging out of the needle
thread scissors.
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