Відео

The framo hydraulic cargo pumping system is designed for a flexible and safe cargo and tank cleaning operation on ships. It consists of one hydraulic motor driven cargo pump installed in each cargo tank, ballast pumps, tank cleaning pumps, portable pumps and other consumers, all connected via a hydraulic ring line system to a hydraulic power unit as shown in figure below. The submerged cargo pu...

The totally enclosed lifeboat has been constructed of such form and properties that it has ample stability in a sea way and sufficient freeboard when loaded with its full complement of persons and equipment. Even in the event of the boat being flooded and then capsizing, it will automatically self right and will provide not only an above-water escape for its occupants, but also ensure that all ...

Raw sewage is passed to an aeration chamber and air is supplied through diffusers. This promotes the action of aerobic bacteria which break down the sewage into carbon di-oxide, water and inorganic waste. Figure below shows a typical biological sewage treatment plant.Sewage then passes into the clarification or settling chamber. Any solids that settle out are returned via an air lift to the aer...

Overhauling of Purifier / Dismantling of Purifier

AIR IN THE STEERING GEAR SYSTEM WILL LEAD TO HUNTING OF THE STEERING GEAR. HENCE REMOVAL OF AIR IS A NECESSITY FOR PROPER FUNCTIONING OF STEERING GEAR AND SAFE NAVIGATION. FOLLOWING PROCEDURE IS CARRIED OUT FOR REMOVING AIR FROM THE SYSTEM :- SET THE STEERING GEAR IN MECHANICAL HANDLE OPERATION. OPEN THE STOP VALVES AND CLOSE THE BYPASS VALVES. START MOTOR AND CARRY OUT AIR VENTING FROM VENT VA...

Dg Shipping E-learning Period Completion by Auto Clicker / Auto Clicker Hack tricks in E-learning

Dismantling the pump : Remove the distant piece fitted between the pump and motor coupling after removing both motor and pump side coupling bolts and disks. Remove cooling connections to Mechanical seal. Remove casing top cover bolts Once casing cover bolts are removed, pump assembly is free to remove from place along with shaft, bearing housing,bearing, mechanical seal, Impeller and impeller s...

Scavenge inspection is inspection of piston, piston rings, cylinder liners etc. Of the main engine through scavenge ports. This helps for detecting leakage from the piston and cylinder cover, if any finish jacket cooling water and lubricating oil pumps should be running during the scavenge port inspection. scavenge inspection is carried out partially from under piston area and partly from scave...

The magnetic particle test method of Non-Destructive Examination was developed in the USA, in the 1930s, as a way to check steel components on production lines. The principle of the method is that the specimen is magnetised to produce magnetic lines of force, or flux, in the material. If these lines of force meet a discontinuity, such as a crack, secondary magnetic poles are created at the face...

Few more Troubleshooting of Auxiliary Boiler 1.Auxiliary boiler feed water pump breaker faulty Causes: Breaker is tripping. It is not holding at ON position. Remedial Actions: Operate the system with the standby pump. Isolate the faulty breaker & change with new one. 2. Auxiliary boiler feed water pump over current trip Causes: Pump is drawing high current & over current relay is tripping the b...

Mooring winch brake testing on ships is one of the most crucial test carried out onboard. Winches are one of the most critical equipment on board ships. It is needless to emphasize upon the fact that how important it is to keep a check on the performance of your winches. Erratic performance of the winches have lead to many disasters and casualties on board ships in the past. An important perfor...

Fuel Pump Overhauling of Auxiliary Engine (YANMAR SERIES)

D'carb of auxiliary engine is nothing but the carrying out of certain routines at intervals prescribed by the manufacturer or experience. Normally the following should be done during a marine decarb to free the engine from anomalies Every 3000hrs 1. take out cylinder head, take the worn out mountings and/or over haul the mountings 2.All units cylinder head, piston, connecting rod, and 3.turboch...

Cylinder head overhauling of Auxiliary engine on board- YANMAR series

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