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We seldom care to think about how it has been possible for us to ride a comparatively safer mode of transport while actually we will be enjoying a good night sleep in a rhythmic orchestral music through deep jungles hills plains and over rivers. In every function there are a few hand that play behind the scene to make it lively success. Here also the railways have their vast fleet people behind the scene. As an ordinary passenger or business man you come across a few representatives. The Station Master(Manager), the Driver , TTE, Guard , Parcel Clerk, PaniPande, Safaiwala etc. At the top you know , the Railway Ministers, Chairman Railway Board, Members railway Board , General Managers, DRMs etc. These are the people who you normally come across in your transaction with the Railways.
BEHIND THE SCREEN But behind the screen there are thousands of men and machineries which toil silently to make your journeys safe and comfortable. They make it possible to reach your provisions to your doorstep to make your life easy and enjoyable. I will try to describe a small part of these activities behind the screen in the pages here. MAINTENANCE OF ROLLING STOCK The rolling stock in the Railways comprises of all kind of stuff that roll on the tracks ( except Push Trolleys and Motorised trolleys). The are Locomotives, Coaches and freight cars. They have hundreds of varieties. I have tried to put a few here which are more common and also a few which are extinct or going to extinct to make way for the new generation. All rolling stocks are required to go through a rigorous maintenace practice divided into shedules. Each vehicle has to under go meticulous examination of external parts before going out for a trip. These are done by a fleet of trained highly skilled staff. These schedules are named as "Trip Schedule" , "Weekly Schedule", "Monthly", " Bi-monthly" "Quarterly", Half-yearly , Yearly ."A", "B", "C", "Primary", "Secondary" "POH", "ROH", "IOH", "MOH" etc. These will be described in short at appropriate places. LOCOMOTIVES Eastern Railway presently use two kinds of Locomotives. Diesel and Electric. Prior to these Steam Locomotives were used as in other parts of the world. The steam locomotives were primarily dependant on coal and water. These were low in capacity compared to today's Jumbo locos of electric and Diesel . This led to a large numbers of Loco sheds after a limited distance. STEAM
Eastern Railway 14 steam
loco sheds which were full of activities till 1970s. Gradually these were phased
out and DIESEL
There are Seven Diesel Loco Sheds on Eastern Railway for maintaining the fleet of 472 diesel locomotives and 5 Diesel Electric Multiple Units.(DEMU)
The Holdings are changing frequently and fast. I am however trying to update continually, but there may be slips. ELECTRIC LOCO
Apart from these there are a few EMU
and MEMU Car sheds These information is due updating COACHES
There are many sites about Locomotives in the web. The locomotives had been the icon of railways throughout the world. Very little has been said about the coaches and freight cars which are responsible for revenue earning and making the railways operationally viable. The first passenger coaches were manufactured fully from timber. These were heavy and costly. they were also prone to easy damages and suffered extensive damages both in terms of material and human being. Over the years improvement was possible. The first was to replace the wooden under frame with steel, while the body continued to be made out of timber. These were later named as " timber bodied coaches". These coaches presented a sorry state of affairs during accidents. A large no of casualties were reported. New designs were developed with development of engineering technology and improvement of welding technique. The result was introduction of "all metal coaches". which were lighter in weight but stronger. In India first change occurred in 1948-50. The Hindustan Aircraft Limited , Bangalore, had plenty of capacity surplus and they were given to manufacture Steel bodied coaches on steel under frames. These were known as HAL (Hindustan Aircraft Limited) coaches in the beginning and now they are better known as BEML (Bharat Earth Movers Limited). Subsequently Indian Railways decided to go for "integral " design in collaboration with M/s Swiss Car and Elevator Manufacturing Corporation Ltd , Zurich, Switzerland. The result was ICF(Perambur) and later RCF(Kapurthala). THE TUBULAR TECHNOLOGY The concept of light weight integral design originated in the recognition of the property of the hollow girder which were found to be far superior to the solid girders from the point of view of strength and utilisation of material. It was also realised that these hollow girders or tubes could be utilised more effectively by adopting "stressed skin" concept. The under frame, side walls and the roof of these coaches are united into what might be called a static tube representing the thin wall of the hollow girder. The compression resistance of this tube has been further increased by provision of suitably welded ribs in the longitudinal direction. Corrugated sheets are used for the trough floor to form a part of the tubular construction as well as to absorb a large portion of the buffing forces. The pillars together with carlines and under frame cross members form hoops to work as bracings of the tube. The end walls fitted into this "tube" are having anti-telescopic construction to absorb a major portion of the collision shock in case of accidents. The above is the main ingredients of design of a coach. Further modifications in layout have been done according to the necessity for different types of coaches. To day there are more than 100 such different layouts are in existence catering the need of different class of passengers. There had been numerous changes bogie design for acquiring higher speed. Unlike wagons these coaches are based at major maintenance depots. In Eastern Railway there are a number of such depots. LIFE OF COACHES Average life of coaches :
POH & IOH SCHEDULE OF COACHES
Important Dimension of Coaches Yet to be inserted COACHING MAINTENANCE
DEPOTS
(This part details will be inserted. Yet under construction)
WAGONS
Life of Wagons 1. 4 Wheeler Wagon : 35 Years 2. Bogie Wagon : 35 Years 3. Tank Wagon : 45 Years. SHEDULE OF POH OF FREIGHT STOCK
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