Hydraulic Fluid Recycling: Field Demonstration.
Abstract
This final report documents the results of laboratory and field evaluations of commercially available recycling units for recycling MlL-HA6l 70 hydraulic fluid. Previous laboratory efforts demonstrated used hydraulic fluid could be restored to specification performance by removing water and particulate contaminants and mixing with 25% new fluid. The field demonstration confirmed this by demonstrating fluid performance in test vehicles. Used fluid was drained from the vehicles, processed through approved recycling equipment, mixed with 25% new fluid, and returned to vehicle service. The vehicle performance was monitored for six months with satisfactory results. In addition, other batches of used fluid were processed through the recycling equipment and analyzed for performance. Results of these additional analysis confirm that used fluid retains most of its additive performance with the exception of antifoaming ability, but that the addition of the 25% new fluid restored the cleaned up used fluid to specification performance. Lessons learned during the demonstration are identified in the report with the most important lesson being the need for clean processing containers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1996
- Accession Number
- ADA318767
Entities
People
- Donna M. Rutkoswki
- Ellen M. Purdy
- Ralph B. Mowery