Maintenance 6.3 Maintenance work between scheduled services
Page 62 Operating instructions for S 40-3...S 150-3 series screw compressors
Fig. 6.4: Checking the oil level, topping up with oil
Every 1,500 operating
hours: Clean the oil
cooler (air cooling)
Clean the air/oil cooler:
– After 1,500 operating hours.
Cleaning the compressed air/oil cooler
1. Switch off the compressor with the OFF button.
2. Remove the right side of the sound insulation hood.
3. Remove the maintenance opening on the cooling air duct box.
4. Remove accumulated dirt with a fibre brush.
5. Blow out the dirt with compressed air (1) in the opposite direction to the nor-
mal cooling air flow (see figure below).
NOTICE!
The service life of the compressed air/oil cooling unit depends on the degree
of soiling (dust, oil vapour) of the suctioned cooling air. Extreme external soil-
ing of the cooling unit leads to an increased temperature in the oil circuit.
WARNING: Risk of injury!
Press the emergency stop button, use the mains disconnection device to iso-
late the compressor from the power supply and fix a padlock to prevent the
power from being switched on again unintentionally.
WARNING!
Do not use sharp objects to clean the cooler!
Sharp objects could damage the cooler.
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