sullivan d18505 blows hydrolic oil out the lines and the pressure reducer

by adam presley
(athens tn)

the problem im having is at shut down, it runs fine but when we turn it off it blows hydrolic oil out the lines and the pressure reducer , have you heard of this? i may not be getting it entirely correct either cause im going by what the other mechanic and operator is telling me, and we dont quite understand how this compressor works. could it be a clogged hydrolic filter building pressure at shut down and where can i get such parts as the filter and pressure reducer for the hydrolic tank? we are trying to understand how this machine operates but not having much luck. if you would like to speak to the mechanic to explain or get a better idea ,thats possible as well if it would be any easier . thanks for any help you can give us to figure this out. my name is adam presley of mckinney escavating and the mechanic that is working with this project name is robin. our number is 423-649-0081. we are located in athens tenn. between chattanooga and knoxville tn. again we would appreciate any knowledge you can pass along