I need to remove the hydraulic pump to change the fan belt on my Case 580 CK. The discharge side of the pump has a flare nut connection on a steel line shaped like a number 7. I can get the flare nut to move but it won't spin on the steel line. I tried holding the line and turn the nut but I only start to crush the pipe. I heated the nut and shot it with every kind of lubricant that I can find but I can't get the nut to spin on the pipe. I think I may have to cut it off unless someone could give me a hot tip. If I have to cut it, can anyone tell me the part number for this pipe? Can I have a hose made with this flare connection? It's not a regular hydraulic fitting. Sure would appreciate any help from anyone who may have had this trouble.