Starting up a handymax bulk carrier’s 48-bore, two-stroke main engine with its turning gear engaged resulted in the turning gear shattered and in damage to 12 consecutive teeth on the flywheel.
The turning gear was damaged beyond repair and had to be replaced. Not only was its housing shattered but the planetary gears were completely destroyed too.
Faced with the costly and unpalatable reality of most likely having to replace the flywheel as well, the ship management company turned to QuantiServ for help. Always liking a challenge when we see one, we engineered and delivered a comprehensive solution that consisted of the following:
- Inspection on board
- CAD and FEA modeling to engineer an economical yet structurally very strong solution
- CNC machining of repair inserts in our workshop
- In-situ machining of the flywheel on board
- Stitching the repair inserts in place
Our in-situ machining and metal stitching specialists carried out the work in February 2019, during the vessel’s port stay in Florida, without interfering in her schedule.
QuantiServ carries out a number of gearwheel repair assignments every year, mostly for industrial, marine and mining customers.