CAUTION
Damage to the machine can be caused by water or steam jets.
Direct water or steam jets can damage or destroy electrical components and indicating instruments.
➤ Cover up electrical components such as the control cubicle, alternator, starter and instruments.
➤ Do not direct water or steam jets at sensitive components such as alternator, starter or indicating
instruments.
Fig. 74 Cooler/radiator cleaning
1
Front end of compressor, sound insulation
(radiator grill) removed
2
Direction of impacting water or steam jet
(from outside to inside).
3
Oil cooler
4
Air cooler
5
Radiator
1. Open both doors.
2. Seal off the air intakes of the engine and compressor air filters before starting cleaning.
3. Remove the sound damping louver in front of the cooler/radiator.
4. Clean the cooling fins with compressed air, water or steam jet in the opposite direction to the
cooling air flow (from inside to outside).
5. Replace the sound damping louver.
6. Remove the protective coverings from the air filters.
7. Switch the «battery isolating switch» on again.
8. Close the doors.
9. Start the machine and run up to operating temperature so that excess water is evaporated.
Clean the cooler/radiator only in a washing area equipped with an oil separator.
10.6.1 Option da, db, dc, dd
Cleaning the compressed air aftercooler
The compressed air aftercooler is located near the air treatment devices.
10 Maintenance
10.6 Cleaning the coolers and radiator
138
Service Manual Screw Compressor
M170 SIGMA CONTROL MOBIL
No.: 9_9425 01 E