Kongsberg - MAN - Schottel

Disassembly of the main shaft line

Preparation and safety measures

- Securing and preparing the work area

Removal of propeller

- Draining lubricating oil from the stern tube
- Loosening and removing the propeller nut and securing key
- Using specialized lifting equipment to carefully detach the propeller from the shaft

Disconnection of shaft bearings and supports

- Removing stern tube seals

Extraction of the shaft

- Carefully withdrawing the shaft from the stern tube using controlled lifting techniques
- Supporting the shaft properly to avoid bending or structural damage

Disassembly of couplings and gearbox connection

- Unfastening coupling bolts connecting the shaft to the gearbox or engine
- Detaching any flexible or rigid couplings and inspecting for wear

Cleaning and Inspection

- Thoroughly cleaning all removed components, including the shaft, bearings and seals,
changing wore out parts including seals, bearings etc.

Kamewa - Berg - Ulstein

OD-Box overhaul

Preparation

- Shut valves, depressurize system
- Drain oil (if needed), ensure safety

Dismantling

- Disconnect and label oil lines
- Remove cover, filters, valves, sensors

Inspection

- Check valves, filters, seals, gaskets
- Look for corrosion, cracks, leaks

Cleaning & Repair

- Clean inside surfaces
- Replace worn parts, lubricate moving components

Reassembly

- Reinstall components with new gaskets/seals
- Reconnect oil lines

Testing

- Refill oil, open valves.
- Check pressure, flow, and for leaks
- Test sensors and valve operation

Final Checks

- Monitor system after startup
- Log work done and parts replaced

Mounting of the Promas system
Mounting of azipods (new construction)
Propeller removing from the main shaft
Dismounting the coupling on intermediate shaft
Taking out the shaft from stern tube
Kongsberg FPP overhaul
Disassembly of blades on the main line
Disassembly of the propeller shaft inside the vessel
Pulling out the propeller shaft from the vessel
Installation of the propeller shaft
Removal of the rudder blade
Removal of the main propeller and the propulsion shaft
Removal of the propeller from the shaft
Removal of the propeller