I notice that there are no clamps on the hydraulic hoses going to and from the oil cooler. I'm sure this is the low pressure side but they must be some mighty good fittings to not need clamps to help keep from leaking. They are not leaking yet but I wondered about installing some clamps myself to make sure they never leak. Is this necessary? I sure am enjoying the mower. The cut and appearance is the best I have ever had.