Dürkopp Adler 869 Operating Instructions Manual page 115

2
Maintenance work
to be carried out
Sewing motor
Clean fan grille 2.
(e.g. with an air blow gun)
Check condition and
tension of V-belt 1
Pneumatic system
Check water level in
pressure regulator.
Clean filter
cartridge.
- Check the system for leaks.
1
Explanation
Remove lint and pieces of thread from
air-intake openings.
It must be possible to depress the V-belt
by about 10 mm by pressing it with a finger
at its mid-point.
The water level must not rise to the level of
the filter cartridge 3.
- After unscrewing the drain screw 5, the
water under pressure will flow out of
the water separator 4.
Dirt and condensation are separated out by
the filter cartridge 3.
- Disconnect the machine from the
compressed-air supply.
- Unscrew the drain screw 5.
There must be no pressure in the
machine's pneumatic system.
- Unscrew water separator 4.
- Unscrew filter cartridge 3.
Wash the filter shell and cartridge
with cleaning fluid (not solvent) and
blast clean.
- Re-assemble the maintenance unit.
3
4
5
Operating
hours
8
160
GB
40
500
500
35