CARL COSSIN
Member
My dipper cylinder end was blowing out so I removed both hoses and see that there is fluid coming out of both in and out at the same time. I think its in the valve for the dipper. maybe the check valve is sticking or there is a blockage. I took it apart and don't see any apparent damage to the seals or the valve. im ordering a new seal kit but not sure if it will fix it. apparently there is pressure on both hoses when I am extending or retracting which causes buildup of pressure in the cylinder and the threaded end pops out. I drilled two shallow holes and placed pins in to prevent the end from coming out but it still blew out. so I started investigating the valve. could it be the check valve or should I look into something else. all other cylinders work properly. we had recently repacked this cylinder and it has functioned good for about a month.