Fred from MO
Member
Mike M may when the prize. On my 60 that keeps blowing out the gasket on the rockshaft piston housing over time suggested to check the pressure of the system. Well I did get a 1500 PSI gauge and used the side pressure ports. The relief valve pressure was way over the required 1210 PSI. In fact I sort of freaked out as it rose past 1300-1400 PSI range. So after some trial and error and a little spilled hydraulic fluid, I removed a total of 4 shims behind the relief valve pressure spring to get the pressure down to right at 1200 PSI. I hope this was the culprit, but will baby the 3 point from now on with the light loading as well.