Will be buying a 4300 from a family friend. I have run it a good bit but I’m not sure of the hours or age. It is having hydraulic problems. Power steering, loader and hitch are all weak and sluggish. Also, noticed the return line on top of the pumps will collapse. I’m thinking restriction somewhere. I didn’t see any crushed lines. I’ve read about a possible screen somewhere. Where is this? What else could cause the probs. Last time I saw it the fluid was cloudy. The owner had just paid to have the clutch replaced.