General - DURKOPP ADLER 577 Series Manual

5. Control unit and control panel
5.1

General

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Adjust the bartacking tension 6 so that the maximum possible
quantity of the thread unwound is consumed during the sewing
process. But ensure that the thread does not flatter above the
pre-tension and that it is not torn.
–
Thread the needle according to the chapter 4.1.
–
Start the sewing process according to the chapter 6.
–
Adjust the main tension 5 so that a satisfactory seam pattern is
obtained when sewing the buttonhole lips (regularly raised lips).
If the seam quality is worse after a thread change, proceed to a
correction. Turn only the main tension 5.
Control
–
Use threads of different colours for threading the needle and the
hook.
–
Carry out a sewing test.
When using two-colour threads and looking from above, the colour of
the needle thread should be visible only in the bartacks.
The present Manual describes only the function of the keys and the
change of parameters by the operator.
For a detailed description of the control unit see the attached actual
Operating Instructions of the motor manufacturer.
The control panel is used for programming the control unit and for
setting the respective seam functions.
This is done partly directly by operating the respective keys or by
changing the parameters.
The parameters are entered in the programming mode. The
parameters and the assigned values are presented by the display..
In order to avoid any involuntary chages of the pre-set parameters, the
attendance of the control panel is subdivided into different levels
(operator, technician, fitter).
The operator has a direct access to its level.
For having an access to the other levels it is necessary to enter a code
number or it is necessary to press several keys simultaneously.
NOTE !
Do not turn the handwheel or the crank during the parameter change
on the operator level!
Reset
When the control unit is totally out of adjustment, the technician can,
by means of a Reset Function, reset all adjustment values to the state
existing at the moment of delivery.
The Reset Function is described in the Service Instructions.
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