Welcome aboard lakeman.
I would be very hessitant to use the tractors hydro power to dislodge the spool valve. Your talking well over 1000 psi. Unfortunately I don't have any tricks of the trade to help you out. Normally they should easily slide out.
Look for any rust or corrosion that may be built up inside the spools cylinder that the spool may be hanging up on.
Good luck.
I would be very hessitant to use the tractors hydro power to dislodge the spool valve. Your talking well over 1000 psi. Unfortunately I don't have any tricks of the trade to help you out. Normally they should easily slide out.
Look for any rust or corrosion that may be built up inside the spools cylinder that the spool may be hanging up on.
Good luck.