Download or read book Aerospace Chlorinated Solvent Contamination of MIL H 5606 MIL H 83282 Vehicle Hydraulic Systems written by A-6C3 Fluids Committee and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although there is controversy regarding the chemical form of chlorine and its relation to harmful effects in the hydraulic fluid (i.e., chloride ions versus organic chloro-compounds versus total chlorine in all forms), it is generally agreed that total chlorine content should be measured and controlled. In the near future, the ban on the manufacture of chlorinated solvents, out of concern for depletion of the ozone layer, may in itself diminish or eliminate chlorine contamination related aircraft malfunctions. It is generally accepted that hydraulic fluid contamination should be held to a minimum under all conditions. The benefits of low contamination levels are improved performance, lower maintenance due to lower wear, corrosion and erosion, longer fluid life, longer component life, etc.Contaminants can be classified into two general types: those that are insoluble and those that are soluble in the hydraulic fluid. The insoluble solid type is most common and is usually referred to as particulate matter. Its measurement and removal have been the subject of much investigation and standardization which is well documented in technical literature. The insoluble liquid type contaminant is much less common. The resulting two phase system is often observed as hazy or cloudy fluid appearance and the recommended action is to remove the contaminated hydraulic fluid from the system.Soluble type contaminants are more difficult to detect and to determine quantitatively. They can easily escape notice, particularly when present in small amounts. Gross contamination usually results in significant changes in fluid physical properties and can be determined by such changes. Smaller amounts are difficult to detect and measure and usually require sophisticated analytical techniques -such as infrared and other spectral techniques, gas chromatography (both head space and electron capture), microcoulometry, x-ray fluorescence, etc.Generally, the presence of undesirable soluble contaminants is unknown until they have been shown to cause performance problems. Hydraulic fluid formulations contain soluble additives in base stocks giving beneficial effects on performance. The range of possible undesirable soluble contaminants can encompass innumerable materials - solids, liquids or gases.
Download or read book Degradation Limits of Hydrocarbon Based Hydraulic Fluids MIL PRF 5606 MIL PRF 83282 and MIL PRF 87257 Used in Hydraulic Test Stands written by A-6C3 Fluids Committee and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SAE Aerospace Information Report (AIR) presents data on normally accepted changes in physical properties and contamination levels for military hydraulic fluids used in hydraulic test stands. This information is of importance to all users of hydraulic test stands to assure the performance data obtained on these test stands for specific components will not be adversely affected by excessive changes in fluid properties or contamination levels. The data pertains to fluids conforming to specifications MIL-PRF-5606, MIL-PRF-83282, and MIL-PRF-87257. The guidelines incorporated in the AIR are the general consensus values of knowledgeable professionals. However, the experience and judgment of engineers and operators responsible for the equipment must be relied upon to determine when the hydraulic fluid is to be replaced. This document is being revised to update the specification numbers for the fluids, to add MIL-PRF-87257, and to delete the non-aerospace rust inhibited hydraulic fluids. In addition, a maximum allowable limit for barium is being added due to the problems experienced when barium gets introduced to the aircraft hydraulic system.
Download or read book Rust Inhibitor Contamination Related Problems in Military Aircraft Hydraulic Systems written by CE. Snyder and published by . This book was released on 2001 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stuck servovalves were observed during pre-flight checks in some aircraft using MIL-PRF-83282 hydraulic fluid. Analysis of hydraulic fluid samples and stuck valves as described in the paper provided a link between valve failures and barium dinonylnaphthalene sulfonate (BSN) content of the hydraulic fluid. The BSN contamination was traced to residual MIL-PRF-6083 preservative fluid that had not been drained from components before installation on the aircraft. The hypothesis was validated by laboratory tribological experiments using a reciprocating tribometer and grazing angle microscope Fourier transform infrared spectroscopy. Corrective actions included reemphasizing procedures to drain MIL-PRF-6083 from components and establishing a 10 ppm maximum limit for barium in new MIL-PRF-83282.
Download or read book Corrosion Tests with MIL H 83282 and MIL H 6083 Aircraft Hydraulic Fluids written by Alfeo A Conte (Jr) and published by . This book was released on 1982 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion tests were performed to determine whether MIL-H-83282 hydraulic fluid could be used in place of MIL-H-6083 preservative fluid in Intermediate Maintenance Activity (IMA) and NAVAIREWORKFAC hydraulic test stands. The results presented in this report show that MIL-H-83282 can not be considered as a suitable alternative fluid. (Author).
Download or read book Test Evaluation of Western Company Friction Reduction Additive in Mil h 5606 Hydraulic Fluid written by Leslie W. Broyles and published by . This book was released on 1969 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: An additive was developed for MIL-H-5606A (red oil) aircraft hydraulic fluid which reduces flow frictional losses in turbulent flow. This additive, a long chain polymer, extends the laminar range beyond the normal laminar to turbulent transition region. The potential advantage of an additive to delay the flow transition is a reduction of system weight by decreasing the line sizes. The evaluation of this potential was the intent of the study. (Author).
Download or read book Topics on Contamination in Hydraulic Systems written by and published by SAE International. This book was released on 1979-01-01 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Military Aerospace Fluids and Lubricants Workshop Proceedings written by Carl E. Snyder and published by . This book was released on 2004-11-01 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Military Aerospace Fluids and Lubricants Workshop was presented by the Materials and Manufacturing Directorate of the Air Force Research Laboratory in order to disseminate information about military lubricant changes and related issues. Major topics included hydraulic fluids: conversion of aircraft from MIL-PRF-5606 to MIL-PRF-87257, system seals, actuator rod tests, T.O. 42B2-3-1 revision status, DoD contamination issues, elimination of storage fluids for hydraulic components, condition monitoring,. Also topics of the workshop were gas turbine engine oils: R&D, test methodology and future trends. Lastly, the topics of the workshop presented were greases: R&D, problem solving and evaluation of MIL-PRF-32014.
Download or read book Evaluation of Candidate Fire resistant Hydraulic Fluids written by and published by . This book was released on 1967 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this program were to characterize thirteen candidate hydraulic fluids for flammability, miscibility, elastomer compatibility and steel-on-steel wear, to determine the feasibility of directly substituting a less flammable fluid for the MIL-H-5606 fluid currently used in most military aircraft. Evaluation in a pump test loop has been performed on MIL-H-5606B and on two of the candidate fluids. No completely nonflammable fluid is compatible with MIL-H-5606 fluid or Buna N elastomers. Three of the thirteen fluids are recommended for further consideration: Oronite 8515, Esso 3158, and Dow Corning XF-1-0302. Oronite 8515 shows some improvement in fire resistance over MIL-H-5606B and would not require operational temperature limitations if used as a replacement fluid. Reduced lubricity of highly loaded hydraulic system components (as compared to MIL-H-5606 fluid) is indicated however, by the performance of Oronite 8515 in a pump test loop. Some improvement in fire resistance over MIL-H-5606B and Oronite 8515 is shown by Esso 3158. The greater viscosity and higher pour point of the latter fluid would impose some operational temperature limitations on MIL-H-5606 fluid hydraulic systems. Dow Corning XF-1-0302 fluid shows marked improvement in fire resistance over MIL-H-5606B and is compatible with Buna N elastomers. Pump testing of this fluid is recommended to provide complete evaluation data. (Author).
Download or read book Painting and Marking of Army Aircraft written by and published by . This book was released on 1988 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Navy Cold Weather Handbook for Surface Ships written by and published by . This book was released on 1988 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aviation Fuels with Improved Fire Safety written by National Research Council and published by National Academies Press. This book was released on 1997-09-18 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reduction of the fire hazard of fuel is critical to improving survivability in impact-survivable aircraft accidents. Despite current fire prevention and mitigation approaches, fuel flammability can overwhelm post-crash fire scenarios. The Workshop on Aviation Fuels with Improved Fire Safety was held November 19-20, 1996 to review the current state of development, technological needs, and promising technology for the future development of aviation fuels that are most resistant to ignition during a crash. This book contains a summary of workshop discussions and 11 presented papers in the areas of fuel and additive technologies, aircraft fuel system requirements, and the characterization of fuel fires.
Download or read book Fluid Power Design Handbook written by Frank Yeaple and published by CRC Press. This book was released on 1995-10-24 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maintaining and enhancing the high standards and excellent features that made the previous editions so popular, this book presents engineering and application information to incorporate, control, predict, and measure the performance of all fluid power components in hydraulic or pneumatic systems. Detailing developments in the ongoing "electronic re
Download or read book Aircraft Fire Safety written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Propulsion and Energetics Panel. Symposium and published by . This book was released on 1997 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EPA 560 6 written by and published by . This book was released on 1976-02 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conference on Chemical Risk Assessment in the Department of Defense DoD written by Harvey J. Clewell and published by American Conference of Governmental Industrial Hygenists. This book was released on 1992-01-01 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Scientific and Technical Publications written by and published by . This book was released on 1990 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Handling and Storage of Liquid Propellants written by United States. Advisory Panel on Fuels and Lubricants and published by . This book was released on 1963 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
