Needle Cooling - Duerkopp Adler 506 Service Instructions Manual

9. Needle Cooling

The needle cooling can be switched from normal to continuous
operation. The desired mode of operation is set at the DIP switch
b500.6 on the control unit (see part 4: Short Description Microcontrol).
In normal operation needle cooling is only activated during sewing.
The air current coming from nozzle 3 must be directed at the
needle in sufficient strength.
To test the needle cooling in normal operation select program P45:
–
Set the "Program" switch to "45".
–
Press the "STOP" key.
The program is activated.
–
In the right half of the second display line "B-TEST-> " appears.
–
Press the " " key.
–
The unit slowly sews to the seam end.
The needle cooling is in operation.
–
Check the strength and direction of the air current.
To correct:
–
Loosen clamping screw 2 slightly.
–
Align the nozzle 3 to the needle.
ATTENTION !
The air current coming from nozzle 3 should in no case blow out the
burner.
–
Tighten clamping screw 2.
–
Regulate the strength of the air current with the adjustment
screw 1 of the throttle valve.
1
2
3
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