Page 374 - Improving Machinery Reliability

340 Improving Machinery Reliability

4. Assign the plant’s machinery engineers to participate in startup activities full-
time.
a. Purposes and benefits:
Specialized training.
Improved communication and implementation of advisor’s recommenda-
tions.
Permits round-the-clock specialist manning.
Assures continuity upon departure of temporary startup advisors.
b. Duration of assignment:
Plant machinery engineers should continue in full-time startup assignment
for one to two months after the plant goes on stream.
5. Train the plant’s electricians and instrument mechanics on machinery acces-
sories:
a. Oil system.
b. Governors.
c. Starting interlocks, alarms, and safety shutdowns.
6. Train operators in machinery areas:
a. Machinery auxiliary systems, including interlocks, alarms, and shutdown fea-
tures.
b. Testing of auxiliaries during operation.
c. Machinery conditions requiring emergency shutdown.
d. Avoiding the kinds of operating errors that can damage machinery.
7. Prepare specific operating instructions for major machinery units:
a. Prepare before run-in, revise before plant startup, finalize after successful
startup is completed.
b. Integrate vendor’s instructions for driver and compressor into process startup
instructions.
c. Prepare specific startup and shutdown procedures; checklists and data lists
for monitoring: data on interlocks, alarms, and shutdown features; process
factors; etc.
8. Ascertain availability of test equipment for run-in and operation:
a. S troboscope-high-speed coverage.
b. Hand-held vibration-measuring equipment.
c. Real-time vibration analyzer.
d. Computerized data-acquisition systems.
9. Identify outside sources for special testing or balancing:
a. Investigate nearby facilities for emergency service such as:
Vibration analysis.
Dynamic balancing of rotors.
Capacity to handle largest rotor.
Balance quality achievable with available machines per recent experience.
b. Dynamic trim balancing in place:
Computerized techniques available.
Special equipment required.
Skilled technicians required.
c. Metallurgical testing laboratory.