Details: main engine routines, make : mak 6m25 & job no : 1051,1108,1109crank web deflection to be taken prior (hot codition) and after docking. record to be submitted.main engine two unit decarboininzation to be carried out, same two unit main bearing and bottom end bearing to be removed and presented to the class surveyor. then all must be boxed back. spares ship supply disconnect and remove all cylinder head mountings. dismantle cylinder heads and separate them from cooling jackets. throughly clean cylinder heads and cooling jacket surfaces. renew all “o”rings and assemble cylinder heads and cooling jackets. cylinder head cooling surfaces to be pressure tested to 06 kgs / cm2 and shown to 2eo & ceo.all cylinder head mountings pockets and seats to be thoroughly cleaned and seats to be lapped. cylinder air starting v/vs relief v/vs fuel v/vs and indicator valves to be o’hauled and tested to prove satisfactory operation and shown to 2eo / ceo. cylinder head relief v/vs to be pressure tested to
Sector: Harbor