Page 376 - Improving Machinery Reliability

342 Improving Machinery Reliability

c. Spare rotor storage and protection.
d. Review stocking for completeness and adequacy.
16. Outline lubrication requirements:
a. Determine requirements for each machine.
b. Verify appropriate product equivalent of vendor-recommended lubricants.
c. Procure ample quantity for startup. Stock quantity to replenish possible seal
leakage. Allow for discard of initial charge.
d. Periodically sample test during operations.

Machinery Startup Review Tasks

The preceding section outlined startup preparation in broad terms. These prepara-
tory tasks can be further broken down into completeness reviews, quality assurance
tasks, cleanliness checks, etc.
The following man-hour percentages could be considered representative for exe-
cuting the field construction completeness review tasks associated with the startup of
a world-size steam cracker (ethylene plant):

Review completeness of installation (“but-list”)-21%
Traps
Vents
Valves
Plugs
Coupling guards
Lube supply lines

Review maintainability of equipment-7%

Spool pieces
Shims
Auxiliary line interference
Alignment devices

Ensure long-term, troublefree operation4%

Determine offset values needed to accommodate thermal growth
Verify stress-free installation of machinery piping
Gear-tooth contact checks