1. SUBMITTED TO:- SUBMITTED BY:-
Dr. H.C. GARG YOGENDER KHOLA
HON’BLE CHAIRPERSON 09162062
DEPTT. OF MECH. ENGG. B.TECH. (ME) VII
2. INDIAN RAILWAY HISTORY
In 1849 GIPR was established by East India Company
First train introduced to India in 1853 between
Boribandar (later VT/CST) in Mumbai to Thane
By 1946 all 42 rail systems taken over by govt. to
make a single nationalized network
3. INTRODUCTION TO I.R.
Indian railway is 4th largest railway network having
route length of 64,460 kms.
Over 12,000 trains daily transporting over 9 billion
passengers and over 1050 million tones of freight per
year
World’s largest public sector enterprise with 1.5
million employees
5. TRAIN MAINTENANCE
Washing line :-
after every 2500 km
Sick line :-
Schedule “A” maintenance- 1 month
Schedule “B” maintenance- 3 months
IOH- 9 months or 2,00,000 km
POH- 18 months or 4,00,000 km
Platform Train Duty:-
on starting & ending stations
7. WORKS CARRIED IN WASHING LINE
Inspection
Cleaning& washing
Brake testing
Primary Maintenance
Secondary Maintenance
Pantry car provisions
Watering
Loading of linen
maintenance of AC & electrical circuits of coaches
8. BRAKE TESTING IN WASHING LINE
Brake testing is carried by using RTR (rack test rig)
Rack testing rig is capable of testing full train (up to
24 coaches) at a time.
9. SECONDARY MAINTENANCE
The trains for the secondary maintenance are given at
least 2 hrs on the washing line
Linen and pantry car provisions
Washing & cleaning of coaches
Maintenance of AC of coaches
10. PRIMARY MAINTENANCE
The trains for the primary maintenance are given at least 6 hrs
at the washing line in addition to secondary maintenance
Oil in hydraulic dash pots
Wheel profiles are visually examined and gauged
pest control treatment
Axle box is examined for grease oozing out from rear cover
Brake blocks & piston stroke checked & changed
11. SICK LINE
Sick line is the workshop for the major and periodical
maintenance of the coaches it consists of modern
facilities like pit for working under frame And crane
for separation of coach & bogie for repair of all type
of defects
12. COACH MAINTENANCE
In coach maintenance generally these work being done
1. testing/maintenance of air conditioner.
2. Maintenance of other electrical circuits like fan light
etc.
3. Buffer maintenance.
4. Brake testing by S.C.T.R.
13. BUFFER MAINTENANCE
Buffers are the horizontal shock absorbing parts with
coupling the adjacent coaches of the train so need
regular changing of shock absorbing rubber pads.
14. BRAKE TESTING
Here S.C.T.R. use for testing of brake and its cylinder acts
as the main reservoir.
There are two pressure potentials i.e. 5kg/cm2 in brake
pipe and 6kg/cm2 in feed pipe.
15. SEPARATION OF COACH & BOGIE
After watching the inspection list if bogie needs
repair like filling of oil or changing of brake shoe etc.
then bogie is separated from the coach by lifting
through a crane
16. MAINTENANCE OF BOGIE
Maintenance processes done on the bogie such as replacement
of the Brocken, wear out parts, replacement of pins and brake
shoe, filling of oil in the suspensions, lubrication of different
parts, tightening of different screws and bolts and change of
axle & wheels if required.
17. MAINTENANCE OF SUSPENSION
In primary suspension mainly we have a spring and a
dashpot to provide damping arrangement so regular
refill of oil and changing of oil being done in the
workshop
18. CHANGE OF DEFECTIVE WHEELS
Wheels of train are subjected to a no of defects i.e.
reduce in the dia. of wheels, Reduce in size of flange,
break of bearing in axle box
19. BRAKE MAINTENANCE
Brakes are the most important part of a train. The
maintenance of brakes consists of change of brake
blocks, adjust stroke length, change of brake cylinder,
leakage in brake system etc.
20. PLATFORM TRAIN DUTY
Rolling In
Rolling out
Axle box feeling
Brake Power Certificate
Safe to Run
21. ROLLING IN/ROLLING OUT
When train enters in station Examiner staff take up positions
on both sides inspect the train enters at the speed of 8 km/h
Whistling sound of hot axle boxes.
Any hanging part or loose fitting of vehicle.
Brake binding of any vehicle.
Any component or spring suspension bracket loose/broken.
Abnormal behaviour of vehicle.
22. AXLE BOX FEELING
After the train come to halt, all axle boxes are felt
within 20 minutes. The temp. of axle is checked by
touching with hand
Temp. is found high then it is checked by the temp.
gun which gives exact temp.
If this temp. is found more than 30 degree than atm.
temp. then the cause is inspected and coach is sent to
workshop
23. BRAKE POWER CERTIFICATE
The incoming driver shall handover the brake power certificate
to Reliving driver or Deposit it the nominated authority, who
will give it to the outgoing Driver.
The outgoing driver and guard will satisfy themselves from the
listed coach numbers that the Brake Power Certificate pertains
to their train.
24. SAFE TO RUN
If all of above factors like no hanging parts brakes are
working correctly the temp of axle box is with in
range and the train is in good and safe condition of
running then the train is announced as safe to run.
25. SUGGESTION
Shunting should be done earlier then the working time
i.e. before 9am so that complete utilization of
available manpower
Coach should be lifted from both sides during
separation of bogie to avoid damage to centre pivot.
The brake blocks should replaced on bogies as a
set.
