DeereWimberley
New member
Un-sticking a control valve.
The dealer installed a WR Long third-function valve to my new tractor 8 months ago. Until yesterday, I had not installed anything that required a third function.
I installed a grapple, connected the hoses and it did not work. After lots of debugging, I determined that the valve was stuck feeding fluid to one port.
I am new to hydraulics, but I am an engineer so I searched the web and youtube and found this great video on disassembling a valve very similar to mine
Explaining Directional Valve Repair - Full Dismantle and Reassembly - YouTube
With the knowledge from the youtube video, I removed the coils, the tubes, and broke the spool loose from its stuck position. Reassembled and it now works.
The task was easier than I expected.
The dealer installed a WR Long third-function valve to my new tractor 8 months ago. Until yesterday, I had not installed anything that required a third function.
I installed a grapple, connected the hoses and it did not work. After lots of debugging, I determined that the valve was stuck feeding fluid to one port.
I am new to hydraulics, but I am an engineer so I searched the web and youtube and found this great video on disassembling a valve very similar to mine
Explaining Directional Valve Repair - Full Dismantle and Reassembly - YouTube
With the knowledge from the youtube video, I removed the coils, the tubes, and broke the spool loose from its stuck position. Reassembled and it now works.
The task was easier than I expected.
