Dmack
Active Member
I have a JD 490D that is experiencing a travel issue. I believe I have a bad or malfunctioning relief valve. When you use any function but the tracks, the machine works fine. When you go to travel, if you press down very quickly on the travel pedals, the machine loses one side of the hydraulic functions. I assume that there are reliefs on all the hydraulic circuits. My question is, can someone tell me which ones are related to travel and where they would be located? I would like to swap the two sides and see if the problem moves. If so, I know which one is need of replacement.
When I lose one side, I can shut the machine off for a minute or two and restart and everything goes back to working. Makes me think I have a weak or broken spring in a relief??
Any help or input would be appreciated.
Dave
When I lose one side, I can shut the machine off for a minute or two and restart and everything goes back to working. Makes me think I have a weak or broken spring in a relief??
Any help or input would be appreciated.
Dave