MAS 90
Atlas Copco Marine MAS 90 — Oil-injected screw compressor for marine working/control air.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Check oil levels weekly and change oil per manufacturer schedule; test for water contamination and sludge formation using ISO 4406 cleanliness codes
Inspect air intake filters monthly; replace or clean according to pressure differential gauges; verify no salt deposits blocking element
Test safety valves annually per ASME Section VIII; verify opening pressure with calibrated gauge; document test certificates
Monitor cooling water flow rate and temperature drop across heat exchanger; inspect water jackets quarterly for scale/blockage; flush with freshwater monthly
Measure vibration monthly using ISO 10816 standards; compare to baseline; inspect bearing clearances and foundation bolts for corrosion
Type-general inspection and maintenance points for this equipment category — not model-specific.
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