Needle Bar Height - Dürkopp Adler M-Type 869 Serviceanleitung

2.6.2

Needle bar height

2 1
Caution: Danger of injury!
Turn off the main switch.
Only check and adjust the needle hole height when the machine is
switched off.
Standard checking
The height of the needle bar should be set so that the hook tip is in
the lower third of the channel when the stitch length is "0" and in the
loop stroke position.
–
Set the stitch length adjustment wheel to "0".
–
Set the sewing machine to position I (loop stroke setting = 202°).
–
Check the position of the needle in relation to the hook tip.
Correction
–
Set the stitch length adjustment wheel to "0".
–
Undo clamping screw 1.
–
Push the needle bar 2 onto the needle 3.
While doing this the needle bar must not be twisted.
The channel must be by the hook tip.
–
Tighten clamping screw 1.
Setting the needle bar height wrongly can have the following effects:
–
Damage to the hook tip.
–
Wedging the needle thread between the needle and the needle
guard.
–
Skipped stitches and thread tearing.
IMPORTANT!
After adjusting the needle bar height the position of the needle guard
must be checked (see chapter 2.6.4).
3
GB
21