DURKOPP ADLER 577 Series, Руководство пользователя

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5. Bobbin thread scissors
The supporting plate 1 must have tight fit and should move without any
play. If necessary to establish this condition, remove or add the
decimal discs
2 (part no.: 1001 001153 ).
Set the thread puller 3 so that it is level with the thread rest 4 . In no
case should the thread puller 3 stand under the thread rest 4 because
otherwise the supporting plate 1 would be lifted and the knives might
touch each other.
When replacing the knives ensure that the blade of the left knife is a
bit lower than the blade of the right knife.
Set the spring sheet of the thread rest so that a very low pressure is
exerted to hold the thread on the thread rest.
5.1 Setting the closing way
Rule:
With the bobbin thread scissors being closed, the overlapping of the
cutting edges should amount to
about 1 mm .
Setting:
–
Turn on the machine and call up the programme "F - 020" .
–
Lift the sewing basket by means of the programme (the bobbin
thread scissors will be closed) and check the
Rule .
Dismount carefully the throat plate. Ensure that the knife parts do
not move.
–
If required, loosen the screw 5 and turn the eccentric 6 according
to the Rule .
4
3
2
1
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