Dürkopp Adler 667 Operating Instuructions page 32

Fig. 29
Maintenance work
to be conducted
Direct drive
– Clean motor fan filter 1
(e.g. with a compressed
air gun)
Pneumatic system
– Check the water level in
the pressure regulator.
– Clean the filter insert.
– Check the tightness of
the system
28
1
Explanation
– Clean motor fan filter 1 of sewing dust.
– Reinsert the basket and filter.
The water level should not rise as far as filter insert 2.
– Drain water from the water separator 3 under pressure
after screwing in the drain screw 4.
Dirt and condensed water are discharged through the filter insert
2.
– Disconnect the machine from the compressed air supply.
– Unscrew the bleed screw 4. The pneumatic system of the
machine must be depressurised.
– Unscrew the water separator 3.
– Unscrew the filter insert 2. Wash out the contaminated fil-
ter pan and filter insert with benzene (not solvent!) and
blow them clean.
– Reassemble the maintenance unit.
6
4
8
2
1 0
Fig. 30
2
3
4
Operating
hours
8
40
500
500