Page 430 - Improving Machinery Reliability

394 Improving Machinery Reliability

And so, it would be appropriate and beneficial to ponder:

Does our plant have defined work processes, or does work just somehow get done?
Are we supplying the people who do the work in the field the information they
need to do their job?
Is what we are doing today going to change the way we do business tomorrow?

Machinery Turnaround Planning

Figure 10-3 shows the familiar bar chart used for typical turnaround planning.
But bar charts of the type shown can be no more accurate than the experience level
of their developer allows them to be. Unless the developer is thoroughly familiar
with turbomachinery overhauls and remembers task sequences as well as durations,
turnaround plans will probably not be too accurate. The job may take longer than
anticipated and could delay re-starting of the plant. Conversely, the job could be
overmanned to the point where it is done faster than necessary. Here, the plant could
lose out by thus drawing skilled personnel away from other jobs. Work execution
may suffer from lack of continuity or the job may risk being executed in less than
diligent fashion.
To avoid the pitfalls of inaccurate planning, process plants would be well advised
to use a "Mechanical Procedures Manual," which could comprise such detailed out-

LC-01/02 Lube System Repair And Flushing Procedure

Verilied
Reassemble A Install 6 Line 0 Complele
Pump "A" -Up Pump "A
Vendor Coverage
Verity Rolalion 01 r\ Lineup
SI Driven Pump e v Pump"8 0
Remove And lnslatl In Localion "0
Pul1"HOl'A DlOp All Vahes Belween ReSeNOil 6 Flllers e
Cooler Bu%Ie 0 Clean 6 InspeCI. Replace Gaskels
InspxI For Metal And High Temperalure
Swam Damaqe
Salvenl.Clean Carlrldge Supwrl
no
0"CB
Rods. Relnslall Ftller. Carlridges.
New O.Rmq e Far n Remove 200 Gal. 01 Sludgo Per Day
tmnll. nr,,--
t I DoNolRemove
[ I Return Lines Bslween
AP Fller(lncl. Alarm)
Oblain 6 lnilall Insir. TI cmtar l"ld I I Reservoir L Compressor
Hemwe Swlion Liner 8eIwen
Reservoir And Pumps. steam Clean. 0 111 E&G Oki 'I
Vi8 Pump 6 Driver Vibration
Then Coal Wilh EnmirblW (Spray On) And Re4nslall
-
Acd Plopel Install. 01 Si;amers (&hll Rellll Lube 01 Reservoir Wl3Mx) Gallons
- 01 Teresslic 32
Relnslall New Gaskels LI Circulation 3
Commence
Hwk-Up
Arrange For Renlal Or
P P c--c>- Fll;;z;: Discharge Temperalure 6 13 79 Revision 0
Blush Recorder
'13 14 15 16 I7 18 19 20 il 21 23 i4
Figure 10-3. Detailed bar chart for turnaround task.