Many un-restored examples of these early '80s models are now getting ugly cosmetically. Many are still fine mechanically - but the weld repairs on the loader may indicate it's been beaten by more than the weather. Is the loader a Kubota 1720? Does it have an external pump at the front of the tractor? These loaders have very rugged frames so if it has been broken I'd look the tractor over carefully for other signs of abuse or neglect. There should be no oil leaks, air filter should be completely intact, hydraulic oil clean, loader pins reasonably tight, hoses intact, etc. Maybe you could post some pics?