Intermittent Failure

[JimBoy]

Hi all. I have a JD3720 with a backhoe. The last two times I started the tractor, the left stabilizer would not raise. The lever would not move in that direction. After about 20 minutes, it would work. What is going on?

 

[/pine]

water/ice in the system is a guess...

 

[JimBoy]

If that is the case, do I need to flush the entire hydraulic system?

 

[J_J]

If that is the case, do I need to flush the entire hydraulic system?

I would flush and use recommended fluid for your climate.

 

[CJONE]

Most of the time it is water in the spring cup or in the linkage system, not in the hydraulics. Your system would have to be in BAD shape for a valve spool to freeze up. Personally I have never seen it. Almost all the time it is the detent or spring center cup on the back of the spool [opposite the linkage hook up] that has water in it. CJ

 

[tomcat7359]

Most of the time it is water in the spring cup or in the linkage system, not in the hydraulics. Your system would have to be in BAD shape for a valve spool to freeze up. Personally I have never seen it. Almost all the time it is the detent or spring center cup on the back of the spool [opposite the linkage hook up] that has water in it. CJ

I totally agree with this....