MARINE ENGINEER'S WORLD

Guide Notes for Rudder, Rudder Stock and Pintle Survey Rudder Stock and Pintle The following should be looked for on the rudder stock and pintle: Excessive clearance between sleeve and bush of the rudder stock/pintle beyond the allowable limit specified by the Classification Society. Condition of sleeve. If the sleeve is loose, ingress of water may have caused corrosion. Deep pitting corrosion in the rudder stock and pintle adjacent to the stainless steel sleeve. Slipping of rudder stock cone coupling. For a vertical cone coupling with hydraulic pressure connection, sliding of the rudder stock cone in the cast piece may cause severe surface damages. Where a stainless steel liner/sleeve/cladding for the pintle/rudder stock is fitted into a stainless steel bush, an additional check should be made for crevice corrosion. What to look for in Drydock Deformations The rudder blade, rudder stock, rudder horn and propeller boss/brackets have to be

Guide Notes for Anchors and Chains Survey Guidance below is not linked to the extent of checking required for different periodical surveys. Mooring equipment Condition of the windlass foundations Possible excessive wear on cable lifters, gears. Check clutches under operation Condition of the prime movers: Steam engines (dismantled if necessary), Electrical motor (insulation resistance measurements), Hydraulic motors, Flexible couplings and torque limiters, Condition of cable stoppers, when fitted, Running test to verify good functioning. Anchors The number of anchors and links of chain cable should be checked to ensure they are in accordance with the Class Society Rules. Condition of anchor pin - withdraw the anchor pin if the condition is in doubt. Condition of anchor head holes for fitting of the anchor pin. If anchor head holes are worn, increased diameter anchor pin may be fitted. Condition of shackle and hole