Needle Bar Height - DURKOPP ADLER 867 Service Instructions Manual

2.6.2

Needle bar height

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Caution: Danger of injury !
Turn off the main switch.
Check and set the needle bar height only when the machine is
switched off.
Standard checking
The needle bar' s height is to be set in a way that the hook tip stands in
the lower third of the needle scarf with the stitch length set to " 0 " in
the looping stroke position.
–
Set the stitch length setting wheel to "0".
–
Arrest the sewing machine in position I (looping stroke position).
–
Check the position of the needle in relation to the hook tip.
Correction
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Set the stitch length setting wheel to "0".
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Loosen the needle bar fastening screw 2.
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Shift the needle bar 1 with needle 3. Upon shifting the needle bar
must not be turned. The needle scarf must be directed to the hook
tip.
–
Tighten the needle bar fastening screw.
A wrong setting of the needle bar height can have the following
consequences:
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Damage on the hook tip.
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Jamming of the needle thread between needle an needle guard.
–
Missed stitches and thread breakage.
ATTENTION !
After a correction of the needle bar height, the needle guard's position
has to be checked (see chapter 2.6.4).
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