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  • 8/6/2019 CDTS Presentation Latest

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    1 SCR

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    Population of CDTS Coaches

    Make BZA

    Depot

    HYB

    Depot

    Total

    VCW 35 8 43

    AIKON 8 44 52

    Total 43 52 95

    2 SCR

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    SNo Nature of defectsNo of

    defects

    %ge of

    defects

    1 Bottom slide valve jam with bottles and clothes 945 55.01%

    2 Press to Flush not working 102 5.94%

    3 No powersupply 91 5.30%

    4 Pressurizervalve defective 60 3.49%

    5 Inlet valve jam due bottles and clothes 55 3.20%

    6 Pressurizer leaking 54 3.14%7 water leaking from commode pan 49 2.85%

    8 emergency flush knob defective 45 2.62%

    9 Solenoid valve leaking 44 2.56%

    10 emergency flush knob missing 38 2.21%

    11 Control box doorworked out 36 2.10%12 Control box doormissing 35 2.04%

    13 Emergency flush knob leaking 23 1.34%

    14 wall protectorpipe defective 22 1.28%

    15 Air leaking in panel board 21 1.22%

    Contd

    Summary ofProblems on CDTS3SCR

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    SNo Nature of defectsNo of

    defects

    %ge of

    defects

    16 speed sensorwire disconnected 16 0.93%17 Pressurizervalve pipe worked out 14 0.81%18 Control box wires disconnected 10 0.58%19 Feed pipe leaking 10 0.58%20 No watersupply 9 0.52%21 door lock defective 6 0.35%

    22 Control panel water leaking 5 0.29%23 inside pipe broken 5 0.29%

    24 No airsupply 4 0.23%

    25 Solenoid valve missing 4 0.23%

    26 CDTS tank bottom loose 3 0.17%27 Converterdefective 3 0.17%

    28 Y-1 valve defective 3 0.17%29 Pressurizer tank bracket welding given up 2 0.12%30 Y-1,2 valve defective 2 0.12%31 Inlet valve closing with heavy noise 1 0.06%32 Y-3 valve defective 1 0.06%

    Grand Total 1718 100.00%

    4 SCR

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    Design Problems

    Common

    5 SCR

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    Depth of FlapperValve

    Depth from top of commode pan

    to throat= 145mm

    Depth of flappervalve from throat of

    commode pan= 380 mm

    6 SCR

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    Location ofControl Panel7 SCR

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    RubberHose between commode

    pan and retention tank

    VCW AIKON

    8 SCR

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    Retention tank Fitment

    VCW AIKON

    9 SCR

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    Pulse Generator

    AIKON

    VCW

    LOCO

    10 SCR

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    Feed Pipe Supply

    11 SCR

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    Spring problem of Flush Valve12 SCR

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    Emergency button-Bypass valves

    AIKON VCW

    13 SCR

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    Waterpressurizer

    VCWAIKON

    14 SCR

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    VCW - Undergear15 SCR

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    Pneumatic pipe connections16 SCR

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    VCW-Bottom slide valve Single cylinder

    17 SCR

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    AIKON- Bottom discharge valve coverrusting

    18 SCR

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    Double Piston Metallic-Non metallic

    19 SCR

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    Clogging- Strainer20 SCR

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    Maintenance Problems

    1. Human excreta at stations/station.

    Yard-transferred to pitline

    2. Technician-safaiwala3. Requires Heavy maintenance

    4. OBHSStaff- training

    21 SCR

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    Maintenance ProblemsRequires test stands for the following sub-

    assemblies

    PLC

    Converter

    Solenoid valve

    Flapper Valve

    Slide Valve

    Pulse generator

    Water Pressurizer

    22 SCR

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    Maintenance Problems

    Additional Technical staff and safaiwalas

    required Bench marking

    warranty period-spares

    warranty period-breakdown maintenance &

    schedules

    23 SCR

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    AMC PROBLEMS

    The AMC to include-

    a. DailyMaintenance- Staff and materials.

    b. Spares & Test Stands - both makes

    c. Disassembling is to be done in 2 working days during BSchedule- B schedule within 6 hrs

    d. Minor Depot as min No of coaches is 32- CDTS coaches may be

    formed in rakes separately that too same make . Rake nomination

    e. Rooms for each manufacturer - 4 rooms

    24 SCR