[djordje]

It appears that one of my relief valves is leaking. Are these easily rebuilt with over the counter o-rings and other parts, or can I use these valves from another model tractor. Maybe cubs or simplicity?

thanks

 

[mkos1980]

http://www.wfmachines.com/discus/messages/96042/115174.html?1163165306

 

[djordje]

Are the two nipples on top supposed to stay flat with the hex or are they supposed to protrude up at all times?

 

[Jshaw0412]

Alexander they both are suppose to bounce back up...spring action.
I recently had one sticking too, I removed it and soaked it in WD-40 then soaked it in Trans fluid overnight and now it works freely.

The O ring seals can be got at John Deere, service manual says replace o rings each time you remove valve...I didnt do that but I have no leaks.

 

[Jshaw0412]

Parts photo.

 

[Highwayman1]

300 Hydro would you also bleed the system after doing a fluid and filter change using the valves. As I rebuilt mine with new seals gaskets and my tractor would not move. We screwed the bolt down for the relief valves and then unscrewed it and now the tractor moves. Was this correct for bleeding the system?