Gearbox repair of cruiseliner propulsion engine gearbox (600 rpm)

Saga Shipping Company Ltd. the owner of the cruise ship 'Saga Pearl II', formerly known as 'Astoria',  contacted us to perform an inspection of the propulsion engine gearboxes. Our inspection team inspected the Lohmann & Stolterfoht GVA 155 So gearboxes on board the ship in the harbour of Gibraltar. The portside propulsion engine gearbox turned out to be severly damaged and needed to be replaced. Stork Gears & Services was asked to reverse engineer the nr 4 portside engine gearbox and was given 3 months to finish the project. Gibraltar - Stork Gears & Services was asked to inspect the propulsion engine gearboxes on board the cruise ship Astoria, lying in the harbour of Gibraltar. This big cruise ship has 4 main engines connected to 2 gearboxes. The inspection revealed that the portside engine gearbox was severly damaged and needed to be replaced. Stork Gears & Services was asked to reverse engineer the portside engine gearbox, a Lohmann & Stoltefoht GVA 1500 So. Swansea - the final assembly work on the gearboxes will be done on board of the ship in the harbour of Swansea, United Kingdom. Scope of work (summary) Dismantling, cleaning and inspection of the portside and starboard propulsion engine gearboxes Renew the gear ring of starboard output shaft re-use of the shaft and gear body Renew nr 4 engine input pinion Renew nr 3 main-engine coupling Reverse engineering, measuring and CAD drawings Gears Order raw material (Lloyds class) Machine parts to grinding dimensions Milling keyway Grinding final dimensions of the shaft Final grinding teeth Assembling the gearbox Final dynamic balancing Assisting with the ship's test run Sea-trails after completion of the repair Why choose Stork Stork Gears & Services was chosen because of its high expertise in reverse engineering maritime gearboxes. Work on this major project has started in October 2009. The cruise ship 'Saga Pearl II' was sailing again with the renewed gearboxes beginning March 2010. Our customer appreciated the fact that we were able to complete the whole project within the fixed time frame of six months.		Location Gibraltar; Swansea, United Kingdom Cruise ship 'Saga Pearl II', formerly the 'Astoria' Market segment Maritime, marine, cruise ship industry Total completion time Start of the project: October 2009 End of the project: May 2010 Gearbox details Lohmann & Stolterfoht GVA 1500 So Nr 4 portside engine gearbox Bull gear dimensions: 2230 mm Rotation speed: 600 rpm Output speed: 215 rpm Propulsion engines: 2 x 3309 kW