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Important quality control step to determine if a power-steering unit functions according to the specifications.
- Exact performance is not fully demonstrated.
- Malfunction may occur during testing.
- Because of the left-over contaminated oil after in-house test, the tested item may be returned.
On the test stand, both testing of a device function and cleaning of its inside are taking place simultaneously. Thus oil while testing may get a large amount of washed off contaminants.
- Metallic abrasion powders.
- Abrasives adhered in the prior step and other kinds of solid materials.
- Atmospheric dust powders.
Oil name : Power steering fluid
Oil quantity : 390L
Oil cleaner : EOC-R50N
- Changes of contamination rate of the test stand oil
| Days before |
EOC treatment |
4 days |
11 days |
30 days |
Degree of contamination
（mg/50ml） |
27.8 |
0.8 |
0.7 |
0.7 |
- Because of the use of clean bypassed oil, no contaminants remain left in the system.
- All contaminants, regardless of their sizes, are removed, and thus the oil stays always clean.
- Costs associated with customer complaints will be nil.
