I have a GX335 with only 150 hours on it. My son was mowing and raised the deck as he was moving. The tractor stopped, would not move forward or backward.
It appears to have very low flow through the hydraulic system
The tractor barely moves forward or backward, usually best down hill
The deck does slowly rise, 5 to 10 seconds from ground to the stowed position.
I have replaced both hydraulic filters during the last PM per the manual.
The hydraulic oil level is fine and I did use the recommended JD oil during the oil change, about 50hrs ago.
Any ideas, I don't have the $$ for a new hydraulic pump. Could it be a relief valve stuck?
Any comments would be welcome!