27-05-2013, 12:53 PM
UTTER PRADESH PARIVAHAN NIGAM SHIKOHABAD DIPOT (FIROZABAD)
UTTER PRADESH PARIVAHAN.pdf (Size: 5.66 MB / Downloads: 121)
INTRODUCTION
UPSRTC is a public sector passenger road transport corporation providing services in the state of
Uttar Pradesh and other adjoining states in North India. With a fleet size of around 7668 buses
we operate over 2.5 million kilometers catering to the travel needs of over 1.3 million people and
earning over Rs. 38.3 million everyday. Provision of adequate, efficient, well co-ordinated,
comfortable and economical services to our passengers, while earning enough for self-sustenance
& growth, is our motto.
Passenger road transport services in the state of U.P. started on 15th May, 1947 with the
operation of bus service on the Lucknow - Barabanki route by the erstwhile U.P. Government
Roadways.
Subsequently, during the fourth Five Year Plan, the erstwhile UP Government Roadways was
rechristened as Uttar Pradesh State Road Transport Corporation (UPSRTC) on 1-6-72 under the
provisions of the Road Transport Act, 1950 with the following objectives:
· For the development of the road transport sector correlated to which would be the overall
development of trade & industry.
· For coordination of the road transport services with other modes of transport.
· For providing or causing the provision of an adequate, economical & efficiently
coordinated road transport service to the residents of the state.
PURCHASE PROCEDURE
Spare Parts
The Corporation annually purchases a variety of spare parts as below :-
New Tyre sets, Tyre retreading material, vehicle spares fro maintenance, repairs and
reconditioning, spring leaves, batteries, assemblies etc valuing approximate 650 million.
Bus body fabrication and renovation - steel, aluminium, glass, plywood, rexine, etc. - approx.
500 million.
Fuel and Oil
The Corporation purchases around Rs. 2400 million per annum of diesel and various lubricant
oils directly from M/S IOC on a 10 days payment credit.
Vehicles
Chassis is purchased on a 45 days credit policy directly from vehicle manufacturers M/s TELCO
and M/s Ashok Leyland. Bus body is generally fabricated in -house and in special cases
fabrication is got down by leading bus body fabricators, as per specifications on identification
through tenders and contract.
WORKSHOPS
For maintenance and repair of vehicles, reconditioning of major assemblies, renovation of buses
and construction of bodies on new chassis, two workshops have been established in Kanpur in
each depot. A mojor workshop is established in the each region
For heavy maintenance and repair of vehicles, reconditioning of major assemblies, renovation of
buses and construction of bodies on new chassis, two Central workshops have been established
in Kanpur: Central Workshop, Rawatpur and Dr. Ram Manohar Lohia Workshop, Allen Forest.
For repairs and maintenance of staff cars belonging to the State Government and the
Corporation, a separate unit named Car Section is established in Lucknow.
STEERING
Steering is the term applied to the collection of components, linkages, etc. which will allow for a
vessel (ship, boat) or vehicle (car) to follow the desired course. An exception is the case of rail
transport by which rail tracks combined together with railroad switches provide the steering
function.
The most conventional steering arrangement is to turn the front wheels using a hand–operated
steering wheel which is positioned in front of the driver, via the steering column, which may
contain universal joints to allow it to deviate somewhat from a straight line.
Lubrication Systems
Internal combustions engines require lubrication in operation to allow moving parts to slide
smoothly over each other. Insufficient lubrication will subject the engine to rapid wear and
ultimately, it may even seize up entirely.
Several different types of lubrication systems are used. Simple two-stroke engines are lubricated
by oil mixed into the fuel or injected into the induction stream as a spray. Early slow-speed
stationary and marine engines were lubricated by gravity from small chambers similar to those
used on steam engines at the time—with an engine tender refilling these as needed. As engines
were adapted for automotive and aircraft use, the need for a high power-to-weight ratio led to
increased speeds, higher temperatures, and greater pressure on bearings which in turn required
pressure-lubrication for crank bearings and connecting-rod journals. This was provided either by
a direct lubrication from a pump, or indirectly by a jet of oil directed at pickup cups on the
connecting rod ends which had the advantage of providing higher pressures as the engine speed
increased.
Crankshaft design
Crankshafts on 6 cylinder engines generally have either 4 main bearings or 7 main bearings.
Larger engines and diesels tend to use the latter because of high loadings and to avoid crankshaft
flex. Because of the 6 cylinder engine's smooth characteristic, there is a tendency for a driver to
load the engine at low rpm. This can produce crankshaft flex in 4 main bearing designs where the
crank spans the distance of 2 cylinders between main bearings. This distance is longer than the
distance between two adjacent main bearings on a V6 with 4 mains because the V6 has cylinder
bores on opposite banks which overlap significantly. In addition, modern high-compression
engines subject the crankshaft to greater bending loads from higher peak gas pressures, requiring
the crankthrows to have greater support from adjacent bearings, so it is now customary to design
straight-6s with 7 main bearings.