Turbine Shutdown maintenance activities

A

Thread Starter

arfsm

We have shutdown of the whole plant - which has four Gas turbines with compressors... (mechanical drive)...

Since this is the first time the whole plant is being shutdown, can someone advise on what all Instrument / control/ mechanical / electrical related activities have to be performed during this shutdown on all turbines and compressors.

This is the first shutdown after 3 years of running (i.e. plant was commissioned 3 years earlier)

Already CI has been done.. so i'm not talking about CI, its plant shutdown, so what all possible can be done during this shutdown, please advise...

Waiting ur reply.
 
The first mistake you guys have done is actually shut down the plant without a maintenance strategy in place. Scope definition will be required by a whole team of people. Usually such CCGTs (especially 3yr old ones) will have some kind of agreement with the OEM (eg Siemens or GE) and they will have full scope definition. Other organizations also provide this service as owners engineers (at cost) or you may want to have the site engineers get together and define scope. I would be surprised if you've shutdown already and you are not sure of what to do with the units.
 
P

Process Value

Plant maintenance activities during Major Shutdown

A Major M&I is a collaboration between both the plant maintenance & operational personnel and the external or the OEM personnel who come to the site to specifically overhaul your turbine. In all the major shutdown;s i have seen the OEM personnel come excursively for overhaul of the turbine and generator only.

The rest of the checks and the isolation is to be done by the plant in house maintenance personnel as each site differs from one another and plant
interconnections and equipment isolation is better known to the plant operation people than the external maintenance people. The first thing to do is to know the division of work. <pre>
Part 1 - Development of a Maintenance strategy.

Here is a sample maintenance work division strategy , i am giving a overall top down view.

External Maintenance personnel
a. Turbine over haul and static testing
b. Generator overhaul and static testing

Internal Maintenance Personnel
a. Field maintenance personnel
i. Plant isolation and blinding
ii. Cleaning and relinquishing of filters , heat exchangers , pipelines , insulation etc
iii. control valves , mechanical valves , MOv's servicing
iv. Off line leak arresting , replacment of damaged parts , hot works like cut and weld jobs in field

b. Rotary Maintenance personnel
i. PM check / refrubrishing / replacement of all axillary pumps , fans , blowers compressors
ii. co ordination with the Turbine overhaul group

c. Instrument Maintenance personnel
i. Check and calibration of all required field instrumentation like , pressure transmitters , pressure switches , Temperature transmitters , temperature switches , Level transmitters , level switches etc ...
ii. safe removal and isolation of instrument points in Turbine compartment area
iii. PM check of control system healthiness
iv. work on additional instrumentation points to be provided as per operational requirement

d. Electrical Maintenance Personnel
i. Safe isolation of axillary drives and electrical points in the turbine compartment area
ii. PM checks of all axillary drive motors
iv. PM check on Plant HT and LT switch gear
v. PM check on generator and switch gear relays</pre>
 
P

Process Value

Part 2 - Preparation of a detailed work list

This is where the operation group chips in. They are the people who know what all are to be done during the shutdown. A detailed work list is prepared by

both the operational and maintenance incharges and after concurrence of both the parties , the list is released to the execution engineers. The external

maintenance personnel will have their detailed work list. It can be found out in the O&M manual given by the turbine OEM (GE). I am giving a sample work list

for a recent shut down i was a part of ( machine is a distillate fired frame 6 machine)

Field maintenance work list <pre>
a. Blind list
d/s of isolation valve after Fire shut off valve
Steam shut off Valve d/s flange(at turbine compartment)
DM water inlet to atomizing cooler valve D/s( acc.comp outside)
DM water outlet from atomizing cooler valve D/s( acc.comp outside)
4th stage extraction lines ( both side)
10th stage extraction lines to wheel space cooling lines ( both side)
Atomizing air take off line after the buttervalve
Bearing seal air line
Running GT water wash line
Turbine water wash line
On line water wash line
Both ignitors to be removed & dummy to provided

b. Mechanical Isolation list
Cooling water Inlet ( Pipe rack)
Cooling water Outlet(Pipe rack)
Atomizing air inlet( Acc comp.outside)
Atomizing air outlet(Acc.Comp. Outside)
Warren pump cooler inlet
Warren pump cooler outlet
Discharge at Fuel line ( Quell)
Naptha tank to GT take off valve
Recirculation valve for incoming naptha line
Naptha and HSD Pump 1 suction & discharge
Naptha and HSD Pump 2 suction & discharge
Common discharge header isolation valve
Pump Recirculation line valve
long recirculation line valve

c. Main Job list
GT Fuel change over three-way valve to be serviced/changed.
LO cooler CW inlet & outlet piping modification valve handlesfixing
Compressor Washing system blinding to be done (separate list given)
CO2 cylinders house door to be properly fixed in zone-1 &2
Lube oil coolers to be cleaned(2 numbers)
Warren pump lube oil cooler to be cleaned
DM water cooler to be cleaned (Exchanger)
Diesel engine water cooler to be cleaned
Generator air coolers to be cleaned( 5 nos)
Atomizing air cooler to be cleaned
50 microns Naphtha filter elements to be cleaned/replaced.(2 nos)
10 microns Naphtha/25MIC HSD filter elements to be cleaned/replaced.
6 microns Naphtha/HSD filter elements to be cleaned/replaced.(2 nos)
OFF base 5-micron fuel final filter elements east side to be replaced
OFF base 5-micron fuel final filter elements west side to be replaced.
On base 5-micron fuel final filter element to be checked & /replaced.
Naphtha coalescent filter to be replaced (2 nos)
Off base skid entrance fuel line ‘Y’ type strainer to be cleaned.
Both Hi Tec Pump suction strainers to be cleaned.
DM circulation pump Suction strainers to cleaned.(2 nos)
Water wash pump suction strainer to be cleaned
Air intake filter elements to be cleaned/replaced(360 nos)
  Self cleaning system pre/after filters to be cleaned/replaced
  Comp. air bleed of valve air line filter to be cleaned/replaced
  Turbine Hall Air Handling Unit filters to be cleaned.
Forwarding pump #1(nap) short re circulation View glasses cleaning
Forwarding pump #2(nap) short re circulation View glasses cleaning
Forwarding pump long re circulation View glasses to be cleaned
Self-cleaning system driers alumna balls to be checked/replaced.
  Boost air comp. D/s NRV to be checked.
  Both Hi -Tech Pumps NRV to be checked.
  Cooling water inlet and outlet main valves to be serviced
  DM water cooler inlet and outlet valves to be serviced
  Fuel forwarding area fuel lines valves are to be serviced


Rotary Maintenance work list
a. Main Job List
Accessory compartment vent fan #1 PM checks to be done
Accessory compartment vent fan #2 PM checks to be done
Turbine compartment vent fan #1 PM checks to be done
Turbine compartment vent fan #2 PM checks to be done
Load gear compartment vent fan #1 PM checks to be done
Load gear compartment vent fan #2 PM checks to be done
Off base skid vent fan #1 PM checks to be done
Off base skid vent fan #2 PM checks to be done
Lube oil mist fan#1 PM checks to be done
Lube oil mist fan#2 PM checks to be done
Diverting damper seal air fan#1 PM checks to be done
Diverting damper seal air fan#2 PM checks to be done
Guillotine damper seal air fan#1 PM checks to be done
Naphtha scavenging fan PM checks to be done
Cooling tower fan #1 PM checks to be done
Cooling tower fan #2 PM checks to be done
Off base fuel forwarding pump (IMO) PM checks to be done.
Warren AOP PM checks to be done
Warren EOP PM checks to be done
Main Lube oil AOP PM checks to be done
Main Lube oil EOP PM checks to be done
Main Lube oil pump (main shaft driven) PM checks to be done
Auxiliary Hydraulic Oil Pump (AHOP) PM checks to be done
Hydraulic Oil Pump (main shaft driven) PM checks to be done
Ratcheting pump PM checks to be done
Booster air compressor PM checks to be done
Main air compressor PM checks to be done.
Naphtha forwarding pump #1 PM checks to be done.
Naphtha forwarding pump #2 PM checks to be done.
Hitech (Lubricity additive) Pump #1 PM checks to be done
Hitech (Lubricity additive) Pump #2 PM checks to be done
DM Water circulation pump #1 PM checks to be done.
DM Water circulation pump #2 PM checks to be done.
Cooling Water circulation pump #1 PM checks to be done.
Cooling Water circulation pump #2 PM checks to be done.
Cooling Water circulation pump #3 PM checks to be done.
Hydraulic oil filter # 1 elements inspect/change to be done
Hydraulic oil filter # 2 elements inspect/change to be done
Trip oil filter #1 elements inspect/change to be done
Trip oil filter #2 elements inspect/change to be done
Main oil filter #1 elements inspect/change to be done
Main oil filter #2 elements inspect/change to be done
Lube oil cooler c/o valve pad to be fixed.
Lube oil filter c/o valve pad to be fixed.
Warren pump LO fileter to be replaced.
  Off base Moog valve last chance filter to be changed
ON base Moog valve last chance filter to be changed
IGV last chance filter to be changed
oil mist demister pad to be checked/replaced
Main fuel shut off valve drain line plunger to be checked/changed
ON base flow divider o/l fuel line ferrule and line to be changed
OFF base area to be cleaned
ON base floor area to be cleaned.
Main Lube oil changing ( SERVO PRIME 32 T) to be done
Lube oil tank cleaning to be done
Naptha purge drain tank pump-1 PM to be done
Naptha purge drain tank pump-2 PM to be done
HSD false start drain tank pump-1 PM to be done
HSD false start drain tank pump-2 PM to be done</pre>
 
P

Process Value

>The first mistake you guys have done is
>actually shut down the plant without a
>maintenance strategy in place.

Instrumention Maintence Work list <pre>
a. Switches/ control valve/ SOV to be checked/serviced/calibrated
HYD. Supply pressure low 63 HQ-1
3 way valve Sictch (HSD) 33TDD L20FTX1
3 way valve Sictch (Naphtha) 33TUC L20FTX1
ON Base selection 33 VM-1
OFF base selection 33 VM-2
Warren pump LO Ac Motor 88 QA-2 L4QAZ2
Warren pump LO DC motor 88QE-2 L63QAEOP
Warren pump Lo Pressure switch(SUPPLY) 63 QA-4A, 4B 63QA-4
Warren pump Lo Pressure switch(RETURN) 63 QA-3 63QA-3
Diesel engine lube oil pr. Switch 63 QD-1
Diesel engine speed switch 88 DS-1 63DM1
Hyd. Ratchet Pump motor start 88 HR-1 L20CSX
Seam injection darin valve-1 33BS-1 L20BS1X
Seam injection darin valve-2 33 BS-2 L20BS2X
Seam injection darin valve-3 33 BS-3 L20BS3X
Steam injection control valve 33 CJ-1
Steam injection Stop valve 33 SJ-1 L20SJ1X
steam injection Flow transmitter 96 SJ-1
steam injection Flow transmitter 96 SJ-2
Main lube oil AOP auto start 63 QA2 63QA-2
Main lube oil EOP auto start 63 QT-2A 63QT-2A
63QT-2B 63QT-2B
Main lube oil Temp. switches 26 QT1A 26QA-1
26 QT1B 26QT-1A
26 QA1 26QT-1B
warren pump lube oil temp 26 QT-3 26QT-3
comp. Bleed off valve-1 L33 CB1O 33CB1O
Comp. Bleed off valve-2 L33 CB2O 33CB2O
Inlet air DP switch 63 TF-2A 63TF-1
63 TF-2B 63TF-2A
63 TF-1 63TF-2B
Exhaust High pressure 63 ET-1 63 EA-1
Exhaust High pressure 63 ET-2 63 ET-1,2
OFF line wash -Comp 20 TW-1 SOV
Off line wash-Turbine 20 TW-2
On line water wash 20TW-3 SOV
Combustion chamber false start darin VA-17-1
Exhaust Plenum False start darin VA-17-5


b. TRIPS/alarms to be checked
description Mark v Tag no Field Switch no
Flame failure Trip L28f DT 28FD-7, 28FD-8
Exhaust spread High trip L30SPT5
Exhaust Gas temp.High trip L86TXT
Trip oil Pressure Low trip L63HLL 63 HL-1,63 HL-2, 63 HL-3
Lube oil Supply Temp.High trip L26QT 26 QA-1,26QT-1A, 26QT-1B
Over Speed trip L12H 77NH-1, 77NH-2, 77NH-3
Lube oil. Pressure low L63QTX 66 QA-2,63 QT-2A,63QT-2B
Exhaust Gas Pressure High trip L63ETH 63 EA-1, 63 ET-1,63 ET-2
Vibration High trip L39 VT 39 V-1A,1B,39V-3A,3B,39V-4A,4B,39V-4D,4E,4F, 39 V-5A,5B
Customer Trip L4 CT
On Base Liquid Fuel Suppy PR. Low L63FL2A Z 63FL-2A
OFF Base Liquid Fuel Suppy PR. Low L63FL2B Z 63 FL-2B
Warren pump Lube oil pr. Low L63 QAT 63 QA-3,63 Qa-4
Warren pump Lube oil Temp.High trip L26QT3 26 QT-3
IGV Control trouble trip L41 GVT
Turbine Air inlet Filter DP High L63TFH 63 TF-1,63 TF-2A,63 TF-2B

c. Gas monitors to be checked / calibrated
Acc. Comp 45 HA-1,2
Turbine comp 45 HT-1,2
Off base skid 45 HFS-1,2
Off base skid 45 HFS-3
Turbine comp 45 HT-3
Acc. Comp 45 HA-3

d. Fire Protection system sensors/solenoid/switches to be checked / calibrated
Fire protection -CO2 release solenoid valve 45 CR-1to6
Fire protection Co2 - release Pr. Switch 45 CP-1to6
Fire alarm bell LS2-1
fire Detector - ACC. Comp 45 FA-1A
45 FA-1B
45 FA-2A
45 FA-2B
fire Detector - Turbine. Comp 45 FT-1A
45 FT-1B
45 FT-2A
45 FT-2B
fire detector - Exhaust Comp 45 FT-8A
45 FT-8B
fire detector - Exhaust Comp 45 FT-9A
45 FT-9B
Fire Detector - OFF base fuel skid 45 FL-1A,2A
Electronic Hooters EH-1to4
Emergency push buttons EPB-1to6

e. Additional Job list
 Nox steam inlet line first and second valves to be serviced
   Nox steam inlet line both flow meters to be checked
   Naphtha control valve tuning and stroke check to be done
   HSD control valve tuning and stroke check to be done
    Atomizing air temperature control valve to be serviced
   Self cleaning system SOV ‘s in south & north bank to be checked
  ON-BASE & OFF-BASE MOOG valves to be calibrated.


Electrical Maintenance work List
a. Electrical Maintenance isolation
AOP
AHOP
Warren AOP
ACC. Comp vent fan-1
ACC. Comp vent fan-2
Tur. Com.vent fan-1
Tur. Com.vent fan-2
Load gear comp.vent fan-1
Load gear comp.vent fan-2
Off base comp.vent fan-1
Off base comp.vent fan-2
Mist eliminator fan-1
Mist eliminator fan-2
Naphtha scavenging fan
Lube oil centrifuge
I MO pump
Naphtha pump-1
Naphtha pump-2
DM water pump-1
DM water pump-2
Hitec pump-1
Hitec pump-2
Space heater ( to be switched on )
DD SAF-1
DD SAF-2
GD SAF
GD/GFD activator gates
Ignitors (110 AC)
Off line water wash SOV TW-1(110V AC)
Tur water wash SOV TW-2(110AC)
ON line water wash SOV TW-3(110VAC)
NAP/HSD fuel C/O valve 230VAC
I/L air filter valve 230V AC
Air processing skid JB 230V AC
FCBC-1 For 125 V Bus & connected load Jobs
FCBC-2 For 125 V Bus & connected load Jobs
EOP
Warren EOP
Ratchet motor
DE starter motor
MARK-5 ( before switching off ensure all oil pumps & fans of GT are in isolated condition) for all compartments Hot workJobs
HSD false start drain tank pump-1(GT-2)
HSD false start drain tank pump-2(GT-2)
Naptha purge drain tank pump-1(GT-2)
Naptha purge drain tank pump-2(GT-2)
Water wash pump
Water wash detergent pump
Water wash heaters

b. ELectrical PM check and refurbishment
Gen Main breaker
AVR
Gen transformer- PT& CT checking
Transformer Cooling fans
SAT
HRSG MCC
GT MCC
PCC C/o
GT MCC C/o
HRSG MCC C/o
125 V DC FCBC1
125 V DC FCBC2
IMO pump
Aux lube oil pump
Lube oil DC pump
Aux. HYD Oil pump
Warren Lube oil AC Pump
Warren Lube oil DC Pump
Naphtha Pump-1
Naphtha Pump-2
DM pump-1
DM Pump-2
Hi-Tech Pump-1
Hi-Tech Pump-2
Diesel engine staring motor (DC)
Ratchet Motor(DC)
Naptha purge drain tank pump-1
Naptha purge drain tank pump-2
HSD false start drain tank pump-1
HSD false start drain tank pump-2
Aux comp-1
Aux.comp-2
Tur. Comp-1
Tur. Comp-2
Load gear comp.-1
Load gear comp-2
Off base skid-2
Oil mist eliminator-1
Oil mist eliminator-2
Naphtha Scavenging fan
c. Electrical relay checking in Generator , HT and LT switch gear </pre>
Note - the above mentioned list is in now way exhaustive , it will vary from site to site and also on the nature and time for overhaul. Keep this as a reference point for what all needs to be done. I am giving a base overview for GT only , there will be HRSG at site or a drive connected to the GT , i have not given any work list regarding that. moral of the long story is to make up your own list with the help of operational and maintenance people.
 
P

Process Value

> The first mistake you guys have done is
> actually shut down the plant without a
> maintenance strategy in place.
<pre>
Turbine overhaul work list
The Turbine overhaul work list during a major shutdown can be categorised into three main sections. Disassembly, Inspection and reassembly. Please

read through the Vol 6 of the GE given operation and maintenance manual to know more. They have given a step wise method for each section. I will give the

salient points here.

a. Disassembly
i. isolation of turbine from accessory and generator by removal of coupling guards and load gear.
ii. Removal of gas turbine compartment side walls , roofs
iii. Removal of Gas turbine pipings , combustion parts
iv. Removal of outer casings from IGV to exhaust
v. Removal of Gas turbine rotor

b. Inspection and Refurbishment ( the complete replacement list can be found in vol 6 manual)
i. Replacement of combustion Compressor and turbine blades
ii. Replacement of turbine shrouds and static blades.
iii.replacement of all combustion parts , liners , cross flow tubes , burners , new piping for fuel.
iv. General cleaning of rotating parts
v. Inspection and if needed replacement of turbine bearings
vi. Static testing of newly relinquished rotor.

c. Re assembly
i. Rotor placement inside the turbine compartment
ii. alignment checking of the newly installed rotor.
iii. replacement of the outer casings
iv. Replacement of the turbine outer pipings
v. Coupling the turbine to load gear and accessory compartment coupling


Generator Overhaul work list
The generator overhaul work list can be catrgorised into three main sections. Disassembly, Inspection and reassembly. Please read through the OEM maintenance manual to know more about what all needs to be done. I will give the salient points here.

a. Disassembly
i. Removal of all connecting electrical HT bus bar wiring and removal of all monitoring instrumentation
ii. Removal of the exciter and PMG (if present) assembly
iii. mechanical isolation of the rotor and removal of the rotor.

b. Inspection and refurbishment
i. General cleaning (or dry ice cleaning) , varnishing and testing of Stator coils. (common tests include , DC insulation test , PI test , AC PF , capacitance testing , Ring flux testing etc.... )
ii. general cleaning (or dry ice cleaning) , varnishing and testing of rotor. (common tests include insulation test , ring flux testing , Rotor winding integrity using RSO etc... )
iv. General cleaning , varnishing and testing of main exciter , PMG
v. Generator AVR testing ( can be done by regular maintenance or by the OEM)</pre>
 
Thanks everyone for the valuable info..

Specially Process Value.. Excellent information provided.. thanks a lot..
Hats off to you brother.

Secondly, i made a mistake by not giving full information that there is going to be a shutdown (Mid of May) not that we already shutdown the plant..

Thanks and Kind Regards,

ARFSM
 
P

Process Value

>We have shutdown of the whole plant -
>which has four Gas turbines with
>compressors... (mechanical drive)...

Part 3 - Materials and tools management
Now that we know what all works needs to be done , it is important to come up with a inventory list of materials needed during shutdown. This is the part where three is a lot of tug of war between the execution engineers and the plant management. Execution engineers always like to have abundant spares but the plant management does not share their enthusiasm with this. I have seen most of the maintenance works get delayed due to lack of proper material management. Ideally you have to buy everything in the right quantity so that none gets wasted and also there is no short supply , but it rarely happens. A
sample inventory list for a field job will look like this<pre>
Job description Materials needed

50 mic filter replacement 2 50 mic filter elements
inlet air filter replacement 320 inlet air filter modules
etc.......</pre>

A consolidated list for all rotary , electrical , field and instrumentation jobs needs collected and sent for procurement well in advance. Materials should arrive at least a week before the planned maintenance so that it can be properly logged into the inventory.

Part 4 - Preparation of a work schedule
Now that we know what work needs to be done and also the materiel for the jobs , time has come to allocate the jobs on a time scale and to release it to the execution engineers. As there are two separate groups working here , one from the in house plant maintenance and other from the external turbine overhaul group , it is important to synchronize the work schedule of the two. The turbine overhaul personnel will have a fixed time table to choose from. A turbine over haul can be done in 15 days ( round the clock 24 hours shift ) 21 days ( 16 hours shift ) and 30 days( 8-12 hour shifts). It is important when deciding which time scale to go on to. The important criteria is , when the external personnel finish their overhaul , the plant in house maintenance must have also finished the jobs allocated to them so that there is no excessive delay. 15 day work schedule costs a lot , so there is no point in committing the external personnel to a 15 day work schedule when your in house maintenance is going to take you 19-20 days to complete. In this case (20 days for the in house plant maintenance to complete their work schedule) , it will be decided to go for a 21 day turbine overhaul schedule.

Now that we know the time span for the shut down maintenance. it is now important to come up with a work schedule. work schedule is a plan of work to be completed each day during the shut down. A sample work schedule will look like this<pre>
Day Turbine overhaul group Generator overhaul group Plant rotary Plant electrical Plant field Plant inst

1 arrival at site begin plant electrical begin plant mechanical begin plant inst
meeting with the maint group - - isolation isolation isolation



2 Start of dis assembly - begin job list PM check of motors start of cut and weld
jobs etc ........</pre>

The list will be more detailed than this , each work from the job list have to be segregated and included into the main work schedule. Now that we know what all work have to be done in each day, it is important to allocate sufficient manpower to do the job list. An extended part of the work schedule is the man power requirement column which also needs to be filled up with consultation with the execution engineers. The work schedule along with the manpower and supervisor list is the final shutdown maintenance list which is released to all.
 
P

Process Value

>We have shutdown of the whole plant -
>which has four Gas turbines with
>compressors... (mechanical drive)...

Part 5 - continuous assessment and followup of shutdown
The fifth part is where the work starts. Plans are plans. it would be nice if it goes according to plan, but again it rarely does. materials issues (non availability of certain spares, tools, delay in delivery etc ....), unforeseen developments (like when you remove the bolt, the bolt head breaks leaving the tail piece inside it, which has to be drilled out. and believe me it is quite time consuming as you do not want anything to happen to the casing thread schedule), manpower problems (unable to get required man power, supervisor got sick and could not come etc ...) will crop up during the shutdown. It is most important to follow up on the daily work schedule and resolve this issues. The target deviation should not be more than 30% for important milestones fixed in the work schedule. some jobs which are considered time consuming and not necessary will have to be dropped for more important works. A basic and rudimentary mile stones during a turbine major maintenance will look like this

day 1-2 - Plant electrical , mechanical and instrumentation isolation and blinding.

day 2-8 - Turbine disassembly, generator dis assembly, on going field, rotary, electrical and field jobs

day 9-14 - Turbine inspection and refurbishment, generator dis assembly and refurbishment, ongoing electrical, field and instrumentation jobs

day 15-19 - Turbine reassembly, generator reassembly, closure of electrical, field and rotary jobs

day 19-20 - Plant reconnection, removal of blinding, line charging, removal of electrical and instrumentation isolation, commencement of pre-startup checks

day 21-22 - Plant startup, trouble shooting, reliability run, reading comparison, end of shutdown

Part 6 - End of shutdown PARTY !!!!!!
This is where the weary souls who at times work 2-3days continuously in the plant, get a well deserved drink at the table. This is where the plant higher ups bask in the glory of the execution engineers who did all the work ;). This is the time when new friendships are cemented between the plant main crew and the external maint groups who though at loggerheads at most times come together for a job well done.
 
> This
> is the time when new friendships are
> cemented between the plant main crew and
> the external maint groups who though at
> loggerheads at most times come together
> for a job well done.

That's <b><i>soooooo</i> CUTE <i>!!!!!</b></i>

 
P

Process Value

>> This is the time when new friendships are cemented between the plant main crew and the external maint groups who though at loggerheads at most times come together for a job well done. <<

>That's <b><i>soooooo</i> CUTE <i>!!!!!</b></i>

Ha ha ha ..... Thanks CSA ;). I hope you liked the rest of the article as well.

 
> That's <b><i>soooooo</i> CUTE<i>!!!!!</b></i>

If I Lulz are I a trolls?!

Process, you got a lot of good info there, thanks for posting.

However, I just have this feeling that somewhere around the world (probably in India or the East) somebody is going to use control.com posts to plan a major outage. Just imagine how tough life would be if it weren't for the internet!
 
> However, I just have this feeling that somewhere around the world (probably in India or the East) somebody is going to
> use control.com posts to plan a major outage. Just imagine how tough life would be if it weren't for the internet!

Absolutely right: Buddy!

I am going to do the same thing.
Provided information is very useful for planning our forthcoming shutdown in May12.

Regards

All the Best to all for Cool shutdown.
 
P

Process Value

This is an old thread. God i had forgotten that i had written this. Its good to know that people are putting the info to good use. I believe that the list i gave is site specific. the machine was a dual fuel frame 6 unit. But the principles of planning and execution always remains the same. Have a safe shutdown :).
 
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