Investigation of the Cause of Hydraulic System Malfunction of M60A1 (AOS) Tanks using MIL-H-46170 Synthetic-Base Hydraulic Fluid.
ARMY MOBILITY EQUIPMENT RESEARCH AND DEVELOPMENT COMMAND FORT BELVOIR VA
Pagination or Media Count:
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 stuckinoperative servo-values in the gun control systems of the M60A1 AOS tanks. The problems were subsequently identified with one companys 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
- Lubricants and Hydraulic Fluids
- Combat Vehicles