Electrician here needing some help with my truck. Spool valve.
Long story shot. I have a lift truck with down and out riggers. Had the cylinders rebuilt on both sides both functions. I'm still leaking down. The spool valve i took apart and replaced the orings I matched them to a kit I bought. Still leaking down. No hose leaks. I'm at a loss on what to check next. It still sounds like air is getting in the line on one of the spools the (extend is slow the retract is slow with air sounds) any idea what to check next. Additionally there are no manufacturers markings on the spool iv tried googling and can't seem to find anything.
Edit: found out it's a Walvoil spool SD5. No rebuild kits cannot find the orings needed 15.88 x 2.62 code:4GUA115926
Some photos