Needle-Bar Height - Duerkopp Adler 271 Service Manual

6. Needle-bar height

30
Regulation and inspection
Classes 271/273/275 and 272/274 have differing needle-bar heights.
Adjustment and inspection are carried out with gauges 3 and 4.
Caution: danger of injury
Turn off the main switch.
The needle-bar height may only be adjusted with the sewing machine
switched off.
Adjustment
–
Remove needle plate and sewing foot.
–
Undo screw 1.
–
Place gauge 4 on the needle-plate surface.
order no.: 0271 000767 for small shuttle (0271 000751/0271 001991)
order no.: 0271 000766 for large shuttle (0271 001021/ 0271 002041)
–
Fit gauge 3 as far as it will go into the needle bar in place of a
needle.
order no.: 0216 001069 for class 271/273/275
order no.: 0272 001240 for class 272/274
–
Lock sewing machine in position E.
The cross-head 2 is at its lowest position.
–
Push the needle bar downwards.
The foot of the gauge 3 must make contact with gauge 4.
–
Retighten screw 1.
IMPORTANT
The needle-attachment screw must point to the right.
–
Replace needle plate and sewing foot.
1
2
3
4