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                          5                                                                                                                                 Productivity
                                                                                      Wastage Reduction




                                                                                                                                                            Health/Safety
                          4                                                                                                                                 Wastage Reduction
                                                                                                                                       Cost Reduction
                                                               Health/safety




                                                                                                                                                            Fatigue
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                          3                                                                                                                                 Cost Reduction
                                                                                                                  Fatigue




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                                                                          Weightage Chart
    Sr                                             RM       SR       PK               VS           SH       AV           SU        PK
    No        Theme                                B        G        M                M            H        M            B         M        TOTAL
      1       Productivity                              3        4        5                3            2        1            2         2       22
      2       Health and safety                         2        1        3                4            3        5            3         1       22
     3        Wastage Reduction                         5        5        4                5            4        4            5         4        36
     4        Fatigue                                   1        2        2                1            1        3            4         5        19
     5        Cost Reduction                            4        3        1                2            5        2            1         3        21


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    Problem
       no           Problem Description                                                Detail
                  Frequent damage of
      15                                    Wastage of belts due to stones & metal pieces in coal feeders,
                  the coal mill belt
                                            belt damage due to improper storage, effect of climate etc.
                  Scrapping of high
      20
                  value parts               Wastage of High cost items like shafts, actuators, valves etc
                                            Oil wastage due to leakages, oil changes and maintenance
      22          Wastage of oil
                                            activities.
                  Wastage of                Compressed air wastage due to various leakages and improper
      27
                  compressor air            use of compressed air.
                                            Man hours getting waste due to improper planning of work,
      28          Wastage of Man-hours
                                            transportation activities and plant emergencies.
                                            Water wastage due to leakages, passing valves and improper
      47          Wastage of water
                                            usage.
                                            Fuel wastage during transportation, leakages and improper
      68          Wastage of fuel
                                            usage.



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    Problem            Problem                              Weightage Chart
       no             Description       RMB     SRG        PKM     VSM         SHH         AVM           SUB       PKM             TOTAL

                  Frequent damage of
      15          the coal mill belt        4      6         7         2               1         5         1           1               27


                  Scrapping of
      20          high value parts          7     7          6         7               7         6         7           6              53
      22          Wastage of oil            5      1         4         6               2         7         2           7               34
                  Wastage of
      27          compressor air            4      2         1         5               5         3         5           3               28
                  Wastage of Man-
      28          hours                     2      4         2         1               6         1         6           5               27

      47          Wastage of water          1      3         5         4               4         4         4           4               29
      68          Wastage of fuel           6      5         3         3               3         2         3           2               27


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                  Scrapp

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                                                                                              PIE CHART in Lakhs
                                                                                                                                             COMPRESSOR                              COMPRESSOR
                                                                                                                                            VALVE, 1.82, 3%                          VALVE

                                                                                                                                                     HIGH PRESSURE
                                                                                                                                                     VALVE, 3.25, 6%

                                         *                    ;                                                                                              ACTUATORS ,
                                                                                                                                                                                     HIGH PRESSURE
                                                                                                                                                               2.18, 4%
                                                      ;                        ;                                                                                                     VALVE
                                                                                                                                                                  Segregating
                                                              '                                                                                                  valve, 2.75, 5%
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     9                                        9                 ;                                     shafts, 44, 82%                                                                Travelling w ater
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                                        Scrapping of
                                       TWS Head shaft                  (


                                   Scrapping of high
                                   value parts (5 Items)

                                 Problem Selected by Rating
                                 Method is 1


                             Problems falling under
                             Theme “wastage reduction” is 7

                              Problems falling under
                              Category “A” is 31



                 Number of Problems identified are 72




                                            15
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Sr
no   Activity Week                       4       5    6       7   8    9   10       11    12   13   14       15   16   17      18   19   20
 3   Defining Problem
 4   Analyzing Problem
 5   Finiding the Causes
 6   Root Cause analysis

 7   Data analysis

 8   Developing Solution
     Foreseeing
 9   Resistance
10   Trial Implementation
     Regular
11   Implementation

12   Follow up and review




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                                                               TWS he ad shaft Scrapping DATA

                                 4.5                                           2006-07
                                  4
                 Nos. scrapped




                                 3.5
                                  3
                                 2.5
                                  2
                                 1.5             2005-06                                               2007-08                  2008-09
                                     1
                                 0.5                                                                                                                     2009-10
                                  0
                                                     2005- 06                      2006- 07                 2007- 08                    2008- 09          2009- 10

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                                                                     4
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                                                            Interference fit




     di               0                 L        130                    Ei     77                  vi            0.3
                               mm                       mm                              GPa
     d                120.00                     0.03                   Eo     77                                0.3
                               mm                       mm                              GPa       vo
     do               124.80 µ        0.12
                   mm
   Modulus of Elasticity, E for SS 316= 77 Gpa,   - Interference in mm, µ- coefficient of friction
  for steel contacts dry between 0.1 and 0.15, vi and vo – surface roughness in µm
     Interference pressure p                                                                           0.73
                                                                                                                MPa
     Friction force F                                                                                  4.27
                                                                                                                kN
     Transmission torque T                                                                             256.23
                                                                                                                Nm

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Sr No               ACTION POINTS                 WHO     WHEN       STATUS

             Job Planning for availability and
                                                  GVB
              machining of shaft and sleeve.
     1                                            SRG     22/05/09
               Procurement of Material for
                                                   SD
                         sleeve.

                                                  SRG,
              Design of sleeve and material       PKM,
     2                                                    24/05/09
                 collection for the same          PKN,
                                                  SHH

                                                  PKM,
     3       Machining of sleeve and shaft        RMB,    27/05/09
                                                  AVM
                                                  PKM,
                  Installation, trials and        SUB,
     4                                                    2/6/2009
                     implementation               SHH,
                                                  VSM

                                                  AVM,
                                                  RMB,
     5           Performance monitoring
                                                  PKM,
                                                  VSM




                                              %




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PIE CHART in Lakhs
                                    COMPRESSOR                         COMPRESSOR
                                   VALVE, 1.82, 3%                     VALVE

                                           HIGH PRESSURE
                                                                                                               $
                                           VALVE, 3.25, 6%

                                                 ACTUATORS ,
                                                                       HIGH PRESSURE
                                                   2.18, 4%
                                                                       VALVE
                                                      Segregating
                                                     valve, 2.75, 5%


                                                                       ACTUATORS




                                                                       Segregating
                                                                       valve


   Travelling w ater
     screen Head
    shafts, 44, 82%                                                    Travelling w ater
                                                                       screen Head
                                                                       shafts

                                                                                                                         PIE CHART in lakhs



                                                                                                                   TWS Shaft repair
                                                                                           Travelling w ater       cost, 0.19518, 2%
                                                                                             screen Head
                                                                                             shafts, 0, 0%
                                                                                                                                          COMPRESSOR              COMPRESSOR
                                                                                                                                         VALVE, 1.82, 18%         VALVE

                                                                                                                                                                  HIGH PRESSURE
                                                                                                                                                                  VALVE
                                                                                  Segregation
                                                                                 Valve, 2.75, 27%                                                                 ACTUATORS


                                                                                                                                                                  Segregation Valve

                                                                                                                                           HIGH PRESSURE
                                                                                                                                          VALVE, 3.25, 32%
                                                                                                                                                                  Travelling w ater
                                                                                      ACTUATORS , 2.18,                                                           screen Head
   (                                             ;       #                                 21%                                                                    shafts
                                                                                                                                                                  TWS Shaft repair
                                                                                                                                                                  cost




                                                                                           43
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            (               $                                                                                                    Travelling
                                                                                                                                                              BAR Chart

                                                                                                                                   w ater
                                                                                                                        50
                                                                                                                                screen Head
•                                                                                     #                                          shafts, 44                                                  Travelling
•
                                                                                                                        45
        %                               9       (               *            9                                                                                                               water screen
        ;                                   #                                                                           40                                                                   Head shafts

%                   (           (                                                                                       35
                                                                                                        Cost in Lakhs




                                                                                                                        30
                                                                                                                                                                                             TWS Shaft
                                                                                                                                                                                             repair cost
•       $                                                                        ;        1                             25

        ;       1               #                                                                                       20

                                        ' ) (                       ;        1
                                                                                                                        15
                                         #
                                                                                                                        10
                                                                                                                                                               TWS Shaft
•                            ='                                                               ;                          5                                    repair cost,
                                                                                                                                                               0.1951872
                             '                  '               '                                                        0
                                                                                                                             Tr avelling wat er screen Head   TWS Shaf t repair cost
                                                            #                                                                           shaf t s

                                                                                                                                                     Items

$                                           -                            (

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Sr     Activity
no   Week                              4       5   6   7   8   9      10      11   12   13    14    15     16   17   18   19   20   21

3    Defining Problem

4    Analyzing Problem

5    Finding the causes

6    Root Cause analysis

7    Data analysis

8    Developing Solution

9    Foreseeing Resistance

10   Trial Implementation

11   Regular Implementation

12   Follow Up and Review




                                                                     46
Actual           Planned

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                                                                             47
Reward and Recognition




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                48
49

Ashwamedh case study

  • 1.
    Ashwamedh ! " # $ ! 1
  • 2.
    % & # '( ) # $ * + , $ $ * - ' * . ( % ' / 0 % 1 2 3 ( 4 ( 5 0/ , ( 02 4, . * ( 4. 4/ / 6 ' 42 43 2 ' * 7 * 45 8 9 ' ,: ,/ 3 6 ' ,2 ,8 5 % ,3 .4 0: ' % ., .. 00 6 ; <' 9 ; ./ .2 04 - =' ' 0, 6' ' .8 .5 0. " 0/ 1 ; 2
  • 3.
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  • 4.
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  • 5.
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  • 6.
  • 7.
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  • 8.
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  • 9.
    4E ( @ % % F % 9 9 9 ( # $@ % 9 9 *# @ *( ' # Pie Chart Cat A, A$ ; 31, # 43% Cat A Cat C, Cat B *,0 20, Cat C $ *<40 28% *<4: Cat B, 21, 29% * ( # ' 9 (* A ( M N *; ' / ; ( ( ( ; @ 8 7 7 7 6 6 6 5 5 Productivity Wastage Reduction Health/Safety 4 Wastage Reduction Cost Reduction Health/safety Fatigue Productivity 3 Cost Reduction Fatigue 2 1 0 1 % ( ( & * =' *' ; ' ( ( ' B * 9 *# 9
  • 10.
    4E ( =' ; ' ; 1# Weightage Chart Sr RM SR PK VS SH AV SU PK No Theme B G M M H M B M TOTAL 1 Productivity 3 4 5 3 2 1 2 2 22 2 Health and safety 2 1 3 4 3 5 3 1 22 3 Wastage Reduction 5 5 4 5 4 4 5 4 36 4 Fatigue 1 2 2 1 1 3 4 5 19 5 Cost Reduction 4 3 1 2 5 2 1 3 21 ( ( 9 A ' ; ) # ( > F % ( ; @ D * A 7 E ( ( 0/ 6 =' ( 4/ 4: 9 ' / * 44 3( 9 ' 48 43 < ' ) ( B; 1 ; 1 A .8 ; * A) * A A 23 ' 10
  • 11.
    4E ( 6 8 ( ' ' O ; < A * # $ D ( 0/E D ( 44E ; D ( .8E D ( 48E 6' D 7 E 9 ' D ( 23E D ( 4:E D ( 43E 11
  • 12.
    4E ( ( ; ( @ Problem no Problem Description Detail Frequent damage of 15 Wastage of belts due to stones & metal pieces in coal feeders, the coal mill belt belt damage due to improper storage, effect of climate etc. Scrapping of high 20 value parts Wastage of High cost items like shafts, actuators, valves etc Oil wastage due to leakages, oil changes and maintenance 22 Wastage of oil activities. Wastage of Compressed air wastage due to various leakages and improper 27 compressor air use of compressed air. Man hours getting waste due to improper planning of work, 28 Wastage of Man-hours transportation activities and plant emergencies. Water wastage due to leakages, passing valves and improper 47 Wastage of water usage. Fuel wastage during transportation, leakages and improper 68 Wastage of fuel usage. =' ; ' ( ( 9 9 ( # 6 ; ' ' (* ( Problem Problem Weightage Chart no Description RMB SRG PKM VSM SHH AVM SUB PKM TOTAL Frequent damage of 15 the coal mill belt 4 6 7 2 1 5 1 1 27 Scrapping of 20 high value parts 7 7 6 7 7 6 7 6 53 22 Wastage of oil 5 1 4 6 2 7 2 7 34 Wastage of 27 compressor air 4 2 1 5 5 3 5 3 28 Wastage of Man- 28 hours 2 4 2 1 6 1 6 5 27 47 Wastage of water 1 3 5 4 4 4 4 4 29 68 Wastage of fuel 6 5 3 3 3 2 3 2 27 ( ; 9 0 8(* ( # ' ( ; ; (*- 9 ' D ( 4:E /, 1 # ( P Scrapping of the high value parts Scrapp 12
  • 13.
    4E ( 9 ' ; ( A ' ; # 9 ' ; ; # $ ; * @ 13
  • 14.
    4E ( ' & ; 9 / 9 ' ; ; ' # 9 ' ' 9 =' * # BF % ; ( ; =' * 9 ' ( ' # B; 1 ( ( ; =' ' =' # =' ; ( ( ; @ - F % ! BF % " G "G 4/ 8A43: 0A34A::: %> F G "G 4: 02A4/: ,A4/A::: F 4 0A:5A::: 4A03A::: G 9 4 0A,8A/:: 4A8/A::: 9 ; . 00A::A::: ..A::A::: ; *+ ( 9 # PIE CHART in Lakhs COMPRESSOR COMPRESSOR VALVE, 1.82, 3% VALVE HIGH PRESSURE VALVE, 3.25, 6% * ; ACTUATORS , HIGH PRESSURE 2.18, 4% ; ; VALVE Segregating ' valve, 2.75, 5% # ACTUATORS ( 9 ; # 9 Segregating valve ; ; Travelling w ater screen Head 9 9 ; shafts, 44, 82% Travelling w ater ' - screen Head shafts ( # 14
  • 15.
    4E ( ( @ ' ; 9 ; ( < ' * 9 * ' ( ( Scrapping of TWS Head shaft ( Scrapping of high value parts (5 Items) Problem Selected by Rating Method is 1 Problems falling under Theme “wastage reduction” is 7 Problems falling under Category “A” is 31 Number of Problems identified are 72 15
  • 16.
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  • 17.
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  • 18.
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  • 19.
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  • 20.
    ,E ( ( ; ' ( ' ; ( =' 9 # =' ; ' (* # ; 1 4: ; 1 ; ; ( ; @ D E 0 A4 7 , ; 1 % 7 ( Sr no Activity Week 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 3 Defining Problem 4 Analyzing Problem 5 Finiding the Causes 6 Root Cause analysis 7 Data analysis 8 Developing Solution Foreseeing 9 Resistance 10 Trial Implementation Regular 11 Implementation 12 Follow up and review 20
  • 21.
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  • 22.
    ,E ( ' ; # D( * ; E ( ; ( ( *; '# 6 *; 1 ( A ( ) * ; 1 ; ( ' ,H ; *# Q.#08 ; Q0#48/ # Q 0/: Q ,02 22
  • 23.
    () 9 @ ' =' * 9 # > @ ' =' > # P < ' ( < ( < P ( ' $ ' ( 9 A & ; '# ; @ ' 9 ; < * < ' =' * ( < ( <$ ' < ) ( 4: ; 1 TWS he ad shaft Scrapping DATA 4.5 2006-07 4 Nos. scrapped 3.5 3 2.5 2 1.5 2005-06 2007-08 2008-09 1 0.5 2009-10 0 2005- 06 2006- 07 2007- 08 2008- 09 2009- 10 Ye a r 2005- 06 2006- 07 2007- 08 2008- 09 2009- 10 ( 9 ; ' ' 23
  • 24.
    .E ( * + () 9 > ; ' . 0 * ( #. 0 * * ' ( # ' . 0 * ( ; (' ( ; @ 9 9 B $ 1 ' ) * " ; 7 1 (* # ' ( # # ' # # 9 =' . 0 =' @ - @ ( R @ ( # :8 :. * ' &# # .. 1 # - @ ( 'R @ ( ' ; ' # - @ ( 'R @% ' ) * ' ' 3 D * / B$B B 2 B$B B E# - @ ( R @ ( ; =' * ( ( 1 # ' ; D ' E# - @ ; ( ' R @ ( ' ' ( 1 1 (* ( # 24
  • 25.
    .E ( * 6 ' ; ; ' ' ' =' * ( @ :8 ; TWS head shaft Scrapping DATA .* ; ; ' 4.5 2006-07 4 ; ; ; # 3.5 3 2.5 % ; ( 9 ' 2 ; 9 * 1.5 2005-06 2007-08 2008-09 * 4::8# 1 0.5 0 6 ; ' ' Y ear ; ' 2005-06 2006-07 2007-08 2008-09 ( ' ,</ * ( ' ' # 25
  • 26.
    /E 6 ' * ( ' $ ; ' 7 '( ' ; # % o D * B E % (*- # # o D" 1 ; A A 1 1 #E 6 ' * o D ,02A E o D *; A * #E ' o D ' A 7 ' A *E ( o D 9 ( A 1 E $ 1 ; o D ' A A E % o D E $ ( o D '( A E o D =' A E F ( o D 1 ; ( 1 A ( 1 A AE * o D ; A ; ' * E % ' o D ' 1 ; E % o D' 1 9 A 9 ; E o D 1 ( 1 A A E 9 ( o D *A = ' *#E % o D E $ ; ' o D9 ( A ' ' ' A E 26
  • 27.
    5) Finding thecauses ' ; ' ' < A A #$ A ' ; 9 @ /E 6 ' 27
  • 28.
    5) Finding thecauses $ & A ; ' ; @ 0E $ ; ' 4E ; 9 ( 9 ; ' # 0E $ ; '@ 9 ; ' :. * ; 1 ; ' ( ; ; '# 4E @ :8 ; ; # % @$ ; '@ ' ' ' ' # ( ' 1 ( 1 A ' ; O ' 9 # 9 ( ( ; O 9 ( ; # @ @ '' ' ( ; ; ' ; ; # ( 9 ( # 9 28
  • 29.
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  • 30.
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  • 31.
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  • 32.
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  • 33.
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  • 34.
    3E 9 ' ' % ; ; ( ; ( # Interference fit di 0 L 130 Ei 77 vi 0.3 mm mm GPa d 120.00 0.03 Eo 77 0.3 mm mm GPa vo do 124.80 µ 0.12 mm Modulus of Elasticity, E for SS 316= 77 Gpa, - Interference in mm, µ- coefficient of friction for steel contacts dry between 0.1 and 0.15, vi and vo – surface roughness in µm Interference pressure p 0.73 MPa Friction force F 4.27 kN Transmission torque T 256.23 Nm % ; 1 :#:, + ' ; =' # ; 9 ; ( ; @ 34
  • 35.
    3E 9 ' ; ' # Sr No ACTION POINTS WHO WHEN STATUS Job Planning for availability and GVB machining of shaft and sleeve. 1 SRG 22/05/09 Procurement of Material for SD sleeve. SRG, Design of sleeve and material PKM, 2 24/05/09 collection for the same PKN, SHH PKM, 3 Machining of sleeve and shaft RMB, 27/05/09 AVM PKM, Installation, trials and SUB, 4 2/6/2009 implementation SHH, VSM AVM, RMB, 5 Performance monitoring PKM, VSM % 35
  • 36.
    5E 6 ' ' ( ' ( ( ) ; # ; 1 ' ( ' 9 ' # ( ( ' ' ; ' @ # ( ( * ' 0 '( ( ' 9 (* ( * * ) 4 $' * ; 1 6 & ( * ; 1 , % ; 1 ; ) ( '( ( ' ( * ; 9 (* & ( ' ; ; ; # ; ' ; ( (* # ; 9 (* # 9 # % ; 9 1 & ; 1 ( * (* ' # ; 9 (* 1 ' ) ( # 1 ' ' ) 9 ; ) ( # 36
  • 37.
    0:E % DT : 19/05/2009 37
  • 38.
    0:E % ( ,02 ; ; ' ' ( ; ( ; @ 38
  • 39.
    0:E % 9 9 ( ; @ 39
  • 40.
    0:E % ; ' ' ; @ * ' * ; (* ; ; ; #% ( * * ( ' ; ; ( ' ; # ( ' ; 9 * ' ( ; ; # < ; ( ' ; 1 1 ' < '#% ' ( H D$ :#:/ P (* ' ' E# ; ; ' # < ; ' ; ' ; 9 ' 9 ' # ; 04: # < ' ; # @ ( @ 04:#:: S :#:0 < ,02 9 ; ' ; ' ; 1 # 40
  • 41.
    6 + 9 @ ' @ 04.#3: S :#:0 % @ 005#58 S :#:0 " @ 0,:#:: < ( 9 9 ; 0/: : ' ' # ; 9 ; ; :#:, #% ' ; ' + ( ' ; ' ,02# < 9 ; ( # ; ; ' ' # < 9 ; & ; * ' ' 1# ( # 41
  • 42.
    < ; 1 ' < ' 9 # ; ' # < A 9 * ( ) * # < ( ( * ; ' # < ( * ; 9 ' # 42
  • 43.
    00E ' % ' ' * 9 #$ ( * & ( ; 1 =' * ( # 1 9 * ( # 9 ( * 1 0 9 ( * ,02 9 * H B H B $ 9 ( * 4 * B F $B > # 9 ( * ' < ' 1 , # 6 * H B G BG ; ' ; . 6 * > BG B H PIE CHART in Lakhs COMPRESSOR COMPRESSOR VALVE, 1.82, 3% VALVE HIGH PRESSURE $ VALVE, 3.25, 6% ACTUATORS , HIGH PRESSURE 2.18, 4% VALVE Segregating valve, 2.75, 5% ACTUATORS Segregating valve Travelling w ater screen Head shafts, 44, 82% Travelling w ater screen Head shafts PIE CHART in lakhs TWS Shaft repair Travelling w ater cost, 0.19518, 2% screen Head shafts, 0, 0% COMPRESSOR COMPRESSOR VALVE, 1.82, 18% VALVE HIGH PRESSURE VALVE Segregation Valve, 2.75, 27% ACTUATORS Segregation Valve HIGH PRESSURE VALVE, 3.25, 32% Travelling w ater ACTUATORS , 2.18, screen Head ( ; # 21% shafts TWS Shaft repair cost 43
  • 44.
    $ * :. ; # * ; ( ; @ & % ' @ % B' DT .E ,02 9 0 Q0,, % Q003 Q.0: .385#23 05/03#84 % 9 83 44#:/#:5 ' 9 # 00A ::A:::#:: # 9 :. .. 1 # % B' DT .E 0 ,02 00A::A:::#:: ..A::A:::#:: 9 .. 1 P & Q .,A 3:A.30B< ( $ Travelling BAR Chart w ater 50 screen Head • # shafts, 44 Travelling • 45 % 9 ( * 9 water screen ; # 40 Head shafts % ( ( 35 Cost in Lakhs 30 TWS Shaft repair cost • $ ; 1 25 ; 1 # 20 ' ) ( ; 1 15 # 10 TWS Shaft • =' ; 5 repair cost, 0.1951872 ' ' ' 0 Tr avelling wat er screen Head TWS Shaf t repair cost # shaf t s Items $ - ( • $ ' - =' # • % 9 ; 1 & # • % 9 " 9 # • # 44
  • 45.
    04E 6 ; ' 9 ; ' '( ( 1 % ' ; # 45
  • 46.
    04E 6 ; ' 9 ; 9 9 ( ; ( ; # 1 ; 1 ; 9 ' O ) ; 40 ; 1 4: ; 1 @ Sr Activity no Week 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 3 Defining Problem 4 Analyzing Problem 5 Finding the causes 6 Root Cause analysis 7 Data analysis 8 Developing Solution 9 Foreseeing Resistance 10 Trial Implementation 11 Regular Implementation 12 Follow Up and Review 46
  • 47.
    Actual Planned - 7 =' ' ( $ * 9 * * . 0 =' 6 ; $ > =' ; ' 6' ' ' - 9 ' ' % J * " • H ; - 7 =' • * ( 9 =' # • ( ( 9 # 1 ; @ 1 ' ' # D (* ; E# 1 ' ' NA ' ; (' 1 9 ' # 1 - 6% 9 ' ' ' ' 9 ) # 47
  • 48.
  • 49.