Reliability measures EMD Locomotives.
Following reliability measures may be incorporated in
maintenance action plan for improving loco reliability.
1.
Incorporate
all items of standard schedule form in Shed’s maintenance schedule form. It should
also include Shed practices & lessons learnt. Action plan made section wise
must be part of schedule form.
2.
Benchmarking
of maintenance practices with other leading Sheds should be immediately started. It will help Shed
in arresting problems which have already been eliminated by other Sheds.
3.
All
drives must be completed in a time bound manner. Preferably within two months.
4.
Shed
failures should automatically trigger launching of drives & review of
maintenance practices in every section instead of waiting for line failures to happen.
5.
MMC
(Mis-Management by Crew) list to be compiled and focused training should be
arranged.
6.
All
line and Shed failures must be reported to HQ & firms. Quarterly
summarized reporting vendor wise should also be ensured.
7.
Power
assembly testing, checking practice should immediately be audited.
8.
Time
bound implementation of proven ALCO modifications in failure areas to be started.
9.
Welding
should not be done in running schedules. Welding should be done during
pre-commissioning & 3 yearly/6 yearly Schedules. Reason for frequent
welding should be identified & same should be made part of major schedule
work content.
10. Shed has identified
vulnerable locations of water & lube oil leakages. Root cause of leakages
from these identified locations should be ascertained. These root causes should
be attended during major schedules to avoid recurrence of leakages.
However, joint drive to check lube & water
leakages should continue to arrest line failure & to judge efficacy of
corrective measures taken during major/medium schedule. All recently received
loco (0-2)yrs. should be re-commissioned on the basis of root causes identified
jointly with lab.
11. Stablisation circuit should be provided to
arrest large failures of Wood word governor coils by providing suitable diodes.
Drive must be completed in next 2 months.
12. Proper
layout and checking of all cable connections during commissioning of the
locomotive should be organised. Checking of OFC cable and its alignment should also
be organised.
13. Changing the
position of the CPC coupler provided in ECC3 from outside to inside to avoid
failure due to thermal load. One clamp
to be provided in compressor room.
14. Application of silicon
rubber sheet to prevent the damage of cable insulation in panel mounted modules
like FCF, TLF, DVR, ASC, FCD; etc, in all locomotives.
15. Comprehensive
instruction sheet for drivers based on last 3 years failures to be pasted in
the drivers cab in the form of stickers.
16. Application of GE 2000 RTV sealant on grid
cover joints, ECC1 panel top, cyclonic filter joints, DB grid fans etc. during
commissioning.
17. Installing modified version of DVR software to
reduce the battery charging voltage from 72 V to 69 V for improving the battery
life. Latest version of EM 2000 software 23.08.00 as recommended by OEM should
also be installed.
18. Cleaning of aspirator hole provided in the clean air chamber for draining
the water to arrest problem of the grounding should be done.
19. Sump cleaning and fuel tank
cleaning during pre-commissioning to be done.
20. After cooler pipe
should be realigned to arrest the water leakage. All such similar rubbing prone
pipes to be realigned.
21. During commissioning valve bridge should be removed
and proper pressing of lash adjuster should be ensured to avoid damage of
cylinder head seat.
22. Use of anti seizure compound in all high
torque areas, where removal of bolts is problem like top and bottom bracket
mounting bolts of dampers etc.
23. Provision of clamp in water inlet pipe of
compressor to arrest water leakage.
24. Tightening of
radiator header bolts during commissioning & yearly schedule to arrest
water leakages.
25. Welding of drain pipes to arrest dropping of
drain pipes and subsequent water leakage.
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