thanks for the reply the unit is on a 1984 ford chasis the cylinder has a stemp on it that says ,valves and presses inc. there is about a 3 inch round valva that sets in the end of the cylinder next to the hydraulic connections,i think its an adjusting valve. i need the adjusting screw out of the end of that valve,so i will call right now if you know what or where it is i need my number is 859-398-0842 thanks again.
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