DURKOPP ADLER 381 Operating Instructions Manual page 29

Maintenance work
to be conducted
Machine head
- Remove sewing dust,
thread and cutting residue.
- Clean the oil baffle
(under the machine head).
Sewing drive
- Check condition and
tension of the V-belt.
Pneumatic system
- Check the water level in
the pressure regulator.
- Clean the filter insert.
Remarks
Areas to be particularly cleaned:
- Underside of the needle plate
- Feed dog ridges
- Area around the hook
- Bobbin case
- Thread trimmer
- Area around the needles
- Remove sewing dust and cutting residue
The V-belt 1 must be able to be pressed
in approx. 10 mm with a finger at the
center.
The water level should not rise up to the
filter insert 1.
- Blow water out of the water separator 2
under pressure after screwing in the
drain screw 3.
Note:
The water separator 2 is equipped with
a semiautomatic condensation drain.
After exceeding a specific pressure, the
condensation is drained automatically.
Dirt and condensation are removed
through filter insert 1.
- Separate the sewing unit from the
compressed air supply.
- Screw in drain screw 3.
The pneumatic system of the sewing
unit must be pressure-free.
- Screw off the water separator 2.
- Remove the filter insert 1.
Wash out the dirty filter bowl and filter
insert with naphtha (no solvents!)
and blow clean.
- Reassemble andconnect the
maintenance unit.
Operating
hours
8
40
160
40
500
31