Page 161 - Improving Machinery Reliability

Machinery Reliability Audits arid Reviews 133

e. Each journal-bearing ID
f. Thrust-bearing concentricity
g. Metallurgy and heat treatment for:
1. Shafts
2. Impellers
3. Thrust collars
4. Hardness readings when H2S is present
Typical wear parts, or parts typically destroyed by massive equipment fail-
ures, are listed as items a through f. Metallurgy and heat treatment of highly
stressed parts coming in contact with H2S are important if failure due to stress-
corrosion cracking is to be avoided (g).
33. Operating and maintenance manuals
Manuals shall be furnished describing installation, operation, and mainte-
nance procedures. Each manual shall include the following sections:
Section 1-Installation:
a. Storage instructions
b. Foundation
c. Grouting
d. Setting equipment, rigging procedures, and component weights
e. Alignment
f. Piping recommendations
g. Composite outline drawing for compressor train including anchor-bolt loca-
tions
While primarily used for installation guidance, Section 1 contains informa-
tion which should go into the purchaser’s construction record system.
Section 2-Operation:
a. Startup
b. Normal shutdown
c. Emergency shutdown
d. Operating limits
e. Routine operational procedures
f. Lube and seal oil recommendations
Section 2 contains information that the purchaser’s machinery engineers
should utilize in developing such comprehensive machinery commissioning
instructions as lube and seal oil flushing and checkout procedures, compressor
air, helium, or vacuum run-in instructions, compressor process runs, and com-
pressor field-performance runs.
Section 3-Disnssembly and reassembly instructions:
a. Rotor i,n casing
b. Rotor unstacking and restacking procedures
c. Journal bearings
d. Thrust bearings
e. Seals
f. Thrust collars