maintenance bay, operating equipment, storage space, material handling equipment and all
other supporting services along with the design of best structure to contain all these
facilities. Objectives of shed Layout are: streamline the flow of loco and materials through
the shed, facilitate the repairing process, minimize materials handling cost, effective
utilization of men, equipment and space, make effective utilization of cubic space,
flexibility of servicing operations and arrangements, provide employee convenience, safety
and comfort, minimize overall loco schedule time, maintain flexibility of arrangement and
operation, facilitate the organizational structure, etc.

3.1

Size and Location of a Maintenance Shed

3.1.1

In the matter of deciding on the location and size of a maintenance shed, operating
requirements are the prime consideration. However, due to the flexibility in
operation available from diesel locos, it is not essential to have sheds at points
coinciding with large traffic yards. It would suffice if a shed is located near to a
train examination or crew changing point.

3.1.2

While determining the location of a shed it is important to give due consideration to
any possible future changes in the mode of traction, for example, change over from
diesel to electric traction. If any change in traction is involved, the requirements of
the old and the new type of traction should be studied in an integrated manner, both
in regard to location and size of the shed.

3.1.3

The size of a maintenance shed is optimum from the technical angle when the
maintenance output is efficient and effective. Experience has shown that for this
personalized attention is a pre-requisite. In the homing shed, full history of each
loco should be readily available so that locos needing more attention can be
selectively nursed even during minor repair schedules.

3.1.4

In the present method of maintenance, the workload of a shed homing 80-100 locos
is sufficient to justify installation of all the necessary machines, equipment and
instruments.

3.1.5

The maintenance shed should be preferably located at or near an industrially
developed town. The sophisticated assemblies used in a diesel loco sometimes
require facilities of a kind which may not be readily available in the shed or which
may not be possible to provide due to the rare necessity of their use. Facilities
available in the industry are very helpful in such cases.

The maintenance shed should be provided with good communication facilities for
effective maintenance. Good communication link with large industrial centers help
in arranging materials and components at short notice in case of emergencies. From
the point of view of efficient maintenance, all repairs schedules M2 (60 days) and
above shall invariably be carried out in the homing shed.

Draft

Document No:

Chapter –3 Infra. Facilities of Diesel Loco Shed

Version No: 1.0-d0

Date Issued: dd/mm/yyyy

Document Title: MANUAL MAINTENANCE FOR DIESEL LOCOMOTIVES

Revised 2013

Printed: 2015/03/08

Page 51 of 303

3.2

Basic Features of Shed Layout

3.2.1

Shed Layout should be expandable for homing 250 Locos. (sufficient area should
be available for future expansion).

3.2.2

A uni-directional movement of locos in the shed is preferable.

3.2.3

Separate entry and exit points should be provided to avoid bottlenecks.

3.2.4

The layout should permit a loco to skip stage of servicing without hampering the
flow of other locos.

3.2.5

The shed should have covered accommodation in its repair area for about 25-30%
of the locos homed. The yard of the maintenance shed should be able to hold about
50% of the total holding of the shed at a time.

3.2.6

Each line in the covered repair area of the shed should be able to hold 3 locos at a
time.

3.2.7

The layout should provide for the possibility of expansion widthwise i.e. providing
more lines side by side. Expansion along the length of the running lines should not
be adopted.

3.2.8

The work area in the shed should be divided into two distinct portions, one dealing
with servicing and light repairs and the other with heavy repairs. Facilities should
be provided in the same sequence in which an incoming loco is to be attended to.

3.2.9

Painting booth: A separate proper paint booth shall be planned.

3.2.10

Now-a-days modern construction techniques are available in which optimum
combination of weight, space, cost and aesthetics is ensured. A comparison of
prefabricated fabrication technique over conventional one is given at Annexure-3.1

3.2.11

RCC buildings should also be constructed utilizing the latest construction
techniques.

3.2.12

Use of latest construction materials such as light weight aluminum corrugated
sheets, anti skid steel tiles, Translucent Poly carbonate sheets, Epoxy flooring etc.
should be made for construction of shed

3.2.13

In designing of shed structure and building the aspect of use of daylight to the
maximum possible extent should be kept in view.

3.2.14

For finalizing the shed layout as well as design of shed structure, building, drainage,
rain water harvesting, surfaces, etc, consultancy to a reputed architect, who has got
experience in designing such building and structures should be awarded. The design
should include specifying the latest energy efficient lighting gadgets at various
locations of the shed such as: pit, below catwalk, roof, side of shed, buildings, yard,
etc.

Home

Ch-3

Home

Ch-3

Draft

Content .. 12 13 14 15 ..