A200-M-65
The ABB Accelleron A200-M-65 is a high‑performance marine turbocharger featuring a radial compressor and axial turbine, designed to boost air intake for large two‑stroke diesel main engines.
Inspector Detail
▸
Common issues
- Compressor wheel fouling from intake air contaminants, reducing efficiency
- Turbine-side fouling and deposits from HFO combustion residues, worse with poor fuel quality
- Bearing wear (radial/axial) from lube oil contamination or extended service life
- Nozzle ring erosion or deposit buildup affecting turbine performance
- Compressor inlet silencer/filter element clogging
- Rotor imbalance from uneven fouling or blade damage, showing up as increased vibration
Inspection checklist
- Visual inspection of compressor and turbine wheels for fouling, erosion, and blade damage (borescope where accessible)
- Measure bearing clearance at scheduled service
- Monitor and trend vibration on the turbocharger casing
- Check effectiveness of compressor and turbine water-washing (if fitted)
- Inspect nozzle ring condition
- Check speed sensor and lube oil supply system
- Inspect casing and bearing housing for oil leakage
Service intervals
| Compressor water-washing | typically every 100-250 running hours depending on fouling rate |
| Turbine water-washing (if fitted) | per maker's schedule, commonly every 250-500 hours |
| Bearing inspection/overhaul | typically every 12,000-16,000 hours or per maker's TC service interval |
| Full overhaul (rotor, bearings, seals) | typically every 16,000-24,000 hours - varies with fuel quality and washing practice |
Typical wear limits
| Radial bearing clearance | clearance values are frame-size specific for this turbocharger family - confirm the exact figure against ABB/Accelleron's service documentation rather than a generic number |
| Rotor axial float | typically a fraction of a millimeter per maker's tolerance - confirm against the maker's manual |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Critical spares
- Bearing set (radial and thrust/axial)
- Sealing air system components (labyrinth seals, piston rings)
- Nozzle ring
- Balanced spare rotor assembly (recommended for large units on extended trading)
Safety
- High-speed rotor - risk of serious damage or injury from an uncontained failure if fouling or imbalance is ignored
- Hot turbine-side casing surfaces
- Compressed air/water washing systems operate under pressure
- Overspeed risk if the engine control system fails to limit load appropriately
Class survey
Turbocharger overhaul records and bearing condition are typically reviewed as part of the main engine's Continuous Survey Machinery programme; class expects evidence that the maker's recommended overhaul interval is being followed, or a condition-based justification for extension.
Components & Design
Component data being added…
Technical Data
🤖 Ask about this model
One free question — answered like a marine engineer. No account needed.
Suppliers & Spare Parts
Direct links to manufacturer, datasheet, spare-parts portal and dealers — request access below.
📄 Request sourcing links & documentsCases, daily reports, timesheets and AI troubleshooting in the OceanSphere Marine app — free for 14 days.
Start free trial →Find manufacturers, repair shops and spare-part dealers in the Maritime Network — our global company directory.
Maritime Network →