Sealing System Leakage Analysis - Oil
Composition of Lubricant Compared to New
| Probable Causes | Actions or Countermeasures |
|---|---|
| Changes in fluid lubricity, viscosity. | Send oil sample to vendor for analysis. |
| Apparent color differences. | Send oil sample to vendor for analysis. |
| Noticeable odor difference. | Send oil sample to vendor for analysis. |
| Non-compatible "Substitute" fluid. | Use fluid specified by OEM. |
| Contaminates in fluid. | Replace fluid; filter fluid. |
Contaminants in Oil
| Probable Causes | Actions or Countermeasures |
|---|---|
| Inadequate cleaning of unit prior to assembly. | Review cleaning procedure to insure removal of machining debris prior to part assembly. |
| Ingestion of contaminants past seals. | Inspect seal for presence of exclusion lip. for spring load seal, check for spring. |
| Wear debris: i.e. bearing, shaft, and other dynamic contact parts. | Inspect dynamic components for excessive wear. |
| Oil contamination during storage. | Check storage procedure. |
| Oil contamination by vendor. | Check in-house and incoming oil containers for contaminates. |
| Break-down of hydraulic housing and similar system components due to material deterioration | Check material fluid compatibility. |
| Sabotage. | Install tamper-proof fill cap |
| Worn seal. | Replace oil, filter oil; clean housing. |
| Sintered (powdered metal) components. |
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News
February 23rd
Here is a great article on grease compatibility . . .
The Skinny on Grease Compatibility
July 30th
Here is a link to a great article about how to avoid particulate contamination . . . Obviously it goes without saying that a sealing...
How to Avoid Particulate Contamination