I have a Kubota SVL75 that we blew a hose on the auger. After removing the auger the boom will not lower unless you release the valve under the seat and will curl out but won't curl in unless you crack one of the hoses on the cylinder. I replaced the hydraulic filter since it was due but we still having issues. You can raise the boom or curl out but everything is locked going down or curling in. Any help would be appreciated