3pt. drops fast....2520

[cantbeatadeere]

any one with experience, I have a 1970 2520 I just picked up and the rockshaft drops all the way down within an hour under no load......ideas???---thanks!

 

[Fawken]

Pretty common for older machines to have a bad lift piston seal. If there is a flow control valve (drop speed) try closing it all the way with the lift up. If it still drops your lift seal is probably going bad. Mine did that for a few years before I replaced the seal and honed the cylinder. It was a non issue until it began oscillating in use.

 

[Tx Jim]

Could be faulty RS piston seal,leaking control valves Or leaking thermal relief valve. You could try as Fawken suggested to tighten down rate of drop screw(parts key 8)

 

[cantbeatadeere]

Very helpful...thanks.