DURKOPP ADLER 767 - Installationsanleitung Handbuch - Seite 14
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5.1 Regulation of hook lubrication
The hook is to have positive lubrication with the least possible amount of oil.
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Let the sewing machine run approx. 2 minutes.
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Let the sewing machine run in intervals.
Hold a piece of paper next to the hook and check if sufficient oil is spun off onto the
paper.
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Remove cover plate 2.
–
Loosen screw 3 until the tube 1 not longer moves.
This is the case when the tube is in the center of the drilled hole.
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Turn screw 3 in until the tube movement just starts and then an 1/8 turn farther.
The hook lubrication is preset.
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Attach cover plate 2 again.
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Setting the hook lubrication with screw 3.
Turn screw 3 in
= Reduce the oil quantity
Turn screw 3 out = Increase the oil quantity
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IMPORTANT !
The oil quantity is pre-set at a relatively high level in order
to ensure adequate lubrication during running-in.
This setting should be checked and corrected after
running-in (approx. 50 hours).
See also or service manual.
Caution Risk of Injury !
Turn the main switch off.
Set the hook lubrication only with the sewing machine
turned off.
Conduct function tests with the machine running only with
the greatest possible caution.
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1
ATTENTION !
The setting range between the minimum and maximum oil
quantity is only ¼ turn.
When screw 3 is turned in too far, then there is a danger
that the tube 1 will be pressed together and the oil flow
interrupted.
2
3