Investigation of the Cause of Hydraulic System Malfunction of M60A1 (AOS) Tanks using MIL-H-46170 Synthetic-Base Hydraulic Fluid.
Abstract
This report covers the investigation by the Chemical Subgroup of the Fire-Resistant Hydraulic Fluid Task Force. The Task Force was organized in 1975-76 to address the problems arising from the introduction of the new 'less-flammable' MIL-H-46170, 'Hydraulic Fluid, Rust-Inhibited, Synthetic Hydrocarbon Base, Fire-Resistant.' The problems were associated with stuck/inoperative servo-values in the gun control systems of the M60A1 (AOS) tanks. The problems were subsequently identified with one company's product which contained a trace amount of a water-coupling inhibitor, polypropylene glycol. The inhibitor in the presence of absorbed moisture caused coprecipitation of the rust inhibitor which deposited on the critical surfaces of spool valve systems. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1978
- Accession Number
- ADA066581
Entities
People
- C. E. Snyder
- H. Mullinger
- J. Messina
- M. E. Lepera