DURKOPP ADLER M-type 867 Instruction Manual page 68

Maintenance work
to be carried out
Sewing drive
Clean fan grille (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.
66
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.
Keystone Sewing Machine Company, Inc.
3
4
5
Operating
hours
8
160
40
500
500