Fresh Water Resource - Pump |
Case Study # 433 |
DA5018 Pump; 14,786 is higher
than expected for this type of equipment; this FIRST time sample was rated
CRITICAL in November 2006.
Recommendation: Consider scheduling this equipment for
maintenance action in the near future. Specifically, to correct
abnormal bearing wear mode in progress and correct possible alignment
problem. These problems may have cause secondary damage to the shaft
and related over heating. |
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Analytical results show the presence of 40
micrometer (um) High Carbon (~12%) steel Severe Sliding wear and 250um
Case Hardened Steel Cutting/Plowing wear. The Cutting/Plowing
wear particles are thin shavings, indicating a two-(2) body wear
contact and an alignment problem. Note that this mage was taken
AFTER heat treatment.
Analysis also shows the presence of 40um Copper
Alloy (including Brass & Bronze) Rolling Contact (Bearing) wear
particles. The size, concentration and severity of the Cutting/Plowing
wear particles indicate there is now an alignment problem and possibly
secondary shaft damage. Analysis also shows the presence of high than
expected concentration of Black Metal Oxides (Fe3O4).
Black Metal Oxides form as the result of heat due to friction from
improper or inadequate lubrication during the formation of these
particles resulting from this abnormal wear mode. |
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Inspection of DA5018 Pump;
severe wear to copper alloy components visible. Pump was scheduled for removal
from service with sufficient time to the to bring backup equipment on
line. Secondary Damage, Property Damage was minimized. Service Interruption
& Downtime was minimized. Maintenance scheduled and performed during
holiday weekend slow period.
Optimized equipment performance and savings for the utility, customers
and investors. |
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CUSTOMER ESTIMATED
COST SAVINGS: Original Component
Savings:
0
Secondary Damage Savings:
0
Down Time Min./Production hrs. Savings:
0
Business Interruption:
0
RUSH Shipping Cost Savings:
0
Parts & Inventory Warehouse Savings:
0
Overtime Repair Savings:
0
Total SAVINGS:
$ Not Released |
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Making your PM Program mean ..... "Profit Making"ä
Experience Since 1985 |
800.483.R7E3A2L5 |
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