Buttonhole Form - Duerkopp Adler 558 Operating Instructions Manual

2.18 Buttonhole Form

The buttonhole form is determined by the two exchangeable disc cams 1 and 2:
–
The upper disc cam 1 determines the eye form.
–
The lower disc cam 2 determines, by taper bar buttonholes, the taper bar form and
buttonhole length.
Disc cams, cutting blocks and cutting knife for the different buttonhole forms and
buttonhole lengths are to be found in the device sheet for the 558 and 578.
Exchanging the disc cams
–
Bring the machine into the end position (see Chapter 2.3).
In the end position the roller bolt 4 is held in position by the underlying cam plate 3.
The disc cams can be removed unhindered.
–
Remove and exchange the disc cams.
After the exchange of the disc cams it is essential that the following points be
checked:
1. Are the corresponding cutting knife and the appropriately long cutting block
mounted ?
If necessary exchange the cutting knife and cutting block (see Chapter 2.12)
2. Is the correct buttonhole length set as per Chapter 2.11 ?
If necessary set the correct buttonhole length at the length setting slide (see
Chapter 2.11).
3. During the exchange of the knives was the corresponding cutting block also
mounted ?
When using the wrong cutting block two differing cutting knife impressions appear in it.
This leads to a bad cutting of the buttonhole slit. In this case true the cutting block again
(see Chapter 2.13).
ATTENTION !
When changing to a different cutting knife form
it is essential to also install the corresponding cutting
block !
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