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	CPP & Thruster Units

	Controllable Pitch Propellers

	In addition to servicing and providing spares for other well known makes of CPP systems and thrust units, SMMS are sole European agents for the NAKASHIMA PROPELLER Co. of Japan. Full service and spares packages can be provided to ensure that overhaul and survey work is carried out to the correct standards, using approved spares and procedures.





	The propeller package includes the hydraulic and electronic system which are supplied as complete modules by the propeller manufacturer. If problems arise, SMMS can be contacted for assistance whether this involves service or spares.


	Thrust units are now manufactured with features that include ease of maintenance. Blades, blade seals and shaft seals can all be replaced without removing the unit from the tunnel.



	SMMS Service Policy

	It is the policy of SMMS to provide quality parts and services. All servicing work is carried out in accordance with Procedures, Directives and Rules issued by the Customer, OEM’s, Classification Society and our own stringent standards. Only qualified engineers and technicians are permitted to carry out servicing work. Full technical support is available from our Birkenhead Headquarters. Only genuine spare parts are used. In the case of obsolete parts or in an emergency situation where alternatives must be used, every effort is made to ensure that these are approved and are of the highest quality. Only approved lubricants and other consumables are recommended. SMMS operate a Quality System to BS EN ISO 9001:2000 (Certificate No. 3932/03)






	During routine maintenance or dry dock surveys, our Service Engineers will inspect all dismantled components and replace only as necessary. At the completion of survey work, the propeller will be tested for oil seal integrity and correct mechanical operation throughout the pitch range.






	Pinion bearings can be removed and the drive gears examined without dry docking the vessel. If necessary, the complete unit can be removed from the tunnel and overhauled in an engineering workshop.